| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
Add auto-analysis to timerlat hist, including the --no-aa option to
reduce overhead and --dump-task. --aa-only was not added as it is
already on timerlat top.
Link: https://lkml.kernel.org/r/c2693f47ee83e659a7723fed8035f5d2534f528e.1686066600.git.bristot@kernel.org
Cc: William White <chwhite@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
|
|
Currently, the auto-analysis is attached to the timerlat top instance.
The idea was to avoid creating another instance just for that, so one
instance could be reused.
The drawback is that, by doing so, the auto-analysis run for the entire
session, consuming CPU time. On my 24 box CPUs for timerlat with a 100
us period consumed 50 % with auto analysis, but only 16 % without.
By creating an instance for auto-analysis, we can keep the processing
stopped until a stop tracing condition is hit. Once it happens,
timerlat auto-analysis can use its own trace instance to parse only
the end of the trace.
By doing so, auto-analysis stop consuming cpu time when it is not
needed.
If the --aa-only is passed, the timerlat top instance is reused for
auto analysis.
Link: https://lkml.kernel.org/r/346b7168c1bae552a415715ec6d23c129a43bdb7.1686066600.git.bristot@kernel.org
Cc: William White <chwhite@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
|
|
When the user sets -c <cpu-list> try to move rtla out of the <cpu-list>,
even without an -H option. This is useful to avoid having rtla
interfering with the workload.
This works by removing <cpu-list> from rtla's current affinity.
If rtla fails to move itself away it is not that of a problem as this
is an automatic measure.
Link: https://lkml.kernel.org/r/c54304d90c777310fb85a3e658d1449173759aab.1686066600.git.bristot@kernel.org
Cc: William White <chwhite@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
|
|
Use a cpumask instead of a char *, reducing memory footprint and code.
No functional change, and in preparation for auto house-keeping.
Link: https://lkml.kernel.org/r/54c46293261d13cb1042d0314486539eeb45fe5d.1686066600.git.bristot@kernel.org
Cc: William White <chwhite@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
|
|
To avoid having rtla interfering with the measurement threads, add an
option for the user to set the CPUs in which rtla should run. For
instance:
# rtla timerlat top -H 0 -c 1-7
Will place rtla in the CPU 0, while running the measurement threads in
the CPU 1-7.
Link: https://lkml.kernel.org/r/6a6c78a579a96ba8b02ae67ee1e0ba2cb5e03c4a.1686066600.git.bristot@kernel.org
Cc: William White <chwhite@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Suggested-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
|
|
The -C option sets a cgroup to the tracer's threads. If the -C option is
passed without arguments, the tracer's thread will inherit rtla's
cgroup. Otherwise, the threads will be placed on the cgroup passed
to the option.
Link: https://lkml.kernel.org/r/cb051477331d292f17c08bf1d66f0e0384bbe5a5.1686066600.git.bristot@kernel.org
Cc: William White <chwhite@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
|
|
Pull kvm fixes from Paolo Bonzini:
"ARM:
- Address some fallout of the locking rework, this time affecting the
way the vgic is configured
- Fix an issue where the page table walker frees a subtree and then
proceeds with walking what it has just freed...
- Check that a given PA donated to the guest is actually memory (only
affecting pKVM)
- Correctly handle MTE CMOs by Set/Way
- Fix the reported address of a watchpoint forwarded to userspace
- Fix the freeing of the root of stage-2 page tables
- Stop creating spurious PMU events to perform detection of the
default PMU and use the existing PMU list instead
x86:
- Fix a memslot lookup bug in the NX recovery thread that could
theoretically let userspace bypass the NX hugepage mitigation
- Fix a s/BLOCKING/PENDING bug in SVM's vNMI support
- Account exit stats for fastpath VM-Exits that never leave the super
tight run-loop
- Fix an out-of-bounds bug in the optimized APIC map code, and add a
regression test for the race"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: selftests: Add test for race in kvm_recalculate_apic_map()
KVM: x86: Bail from kvm_recalculate_phys_map() if x2APIC ID is out-of-bounds
KVM: x86: Account fastpath-only VM-Exits in vCPU stats
KVM: SVM: vNMI pending bit is V_NMI_PENDING_MASK not V_NMI_BLOCKING_MASK
KVM: x86/mmu: Grab memslot for correct address space in NX recovery worker
KVM: arm64: Document default vPMU behavior on heterogeneous systems
KVM: arm64: Iterate arm_pmus list to probe for default PMU
KVM: arm64: Drop last page ref in kvm_pgtable_stage2_free_removed()
KVM: arm64: Populate fault info for watchpoint
KVM: arm64: Reload PTE after invoking walker callback on preorder traversal
KVM: arm64: Handle trap of tagged Set/Way CMOs
arm64: Add missing Set/Way CMO encodings
KVM: arm64: Prevent unconditional donation of unmapped regions from the host
KVM: arm64: vgic: Fix a comment
KVM: arm64: vgic: Fix locking comment
KVM: arm64: vgic: Wrap vgic_its_create() with config_lock
KVM: arm64: vgic: Fix a circular locking issue
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes fixes from Masami Hiramatsu:
- Return NULL if the trace_probe list on trace_probe_event is empty
- selftests/ftrace: Choose testing symbol name for filtering feature
from sample data instead of fixed symbol
* tag 'probes-fixes-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
selftests/ftrace: Choose target function for filter test from samples
tracing/probe: trace_probe_primary_from_call(): checked list_first_entry
|
|
Since the event-filter-function.tc expects the 'exit_mmap()' directly
calls 'kmem_cache_free()', this is vulnerable to code modifications.
Choose the target function for the filter test from the sample
event data so that it can keep test running correctly even if the caller
function name will be changed.
Link: https://lore.kernel.org/linux-trace-kernel/167919441260.1922645.18355804179347364057.stgit@mhiramat.roam.corp.google.com/
Link: https://lore.kernel.org/all/CA+G9fYtF-XEKi9YNGgR=Kf==7iRb2FrmEC7qtwAeQbfyah-UhA@mail.gmail.com/
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Fixes: 7f09d639b8c4 ("tracing/selftests: Add test for event filtering on function name")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
|
|
Keep switching between LAPIC_MODE_X2APIC and LAPIC_MODE_DISABLED during
APIC map construction to hunt for TOCTOU bugs in KVM. KVM's optimized map
recalc makes multiple passes over the list of vCPUs, and the calculations
ignore vCPU's whose APIC is hardware-disabled, i.e. there's a window where
toggling LAPIC_MODE_DISABLED is quite interesting.
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Co-developed-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20230602233250.1014316-4-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Happy Wear a Dress Day.
Fairly standard-sized batch of fixes, accounting for the lack of
sub-tree submissions this week. The mlx5 IRQ fixes are notable, people
were complaining about that. No fires burning.
Current release - regressions:
- eth: mlx5e:
- multiple fixes for dynamic IRQ allocation
- prevent encap offload when neigh update is running
- eth: mana: fix perf regression: remove rx_cqes, tx_cqes counters
Current release - new code bugs:
- eth: mlx5e: DR, add missing mutex init/destroy in pattern manager
Previous releases - always broken:
- tcp: deny tcp_disconnect() when threads are waiting
- sched: prevent ingress Qdiscs from getting installed in random
locations in the hierarchy and moving around
- sched: flower: fix possible OOB write in fl_set_geneve_opt()
- netlink: fix NETLINK_LIST_MEMBERSHIPS length report
- udp6: fix race condition in udp6_sendmsg & connect
- tcp: fix mishandling when the sack compression is deferred
- rtnetlink: validate link attributes set at creation time
- mptcp: fix connect timeout handling
- eth: stmmac: fix call trace when stmmac_xdp_xmit() is invoked
- eth: amd-xgbe: fix the false linkup in xgbe_phy_status
- eth: mlx5e:
- fix corner cases in internal buffer configuration
- drain health before unregistering devlink
- usb: qmi_wwan: set DTR quirk for BroadMobi BM818
Misc:
- tcp: return user_mss for TCP_MAXSEG in CLOSE/LISTEN state if
user_mss set"
* tag 'net-6.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (71 commits)
mptcp: fix active subflow finalization
mptcp: add annotations around sk->sk_shutdown accesses
mptcp: fix data race around msk->first access
mptcp: consolidate passive msk socket initialization
mptcp: add annotations around msk->subflow accesses
mptcp: fix connect timeout handling
rtnetlink: add the missing IFLA_GRO_ tb check in validate_linkmsg
rtnetlink: move IFLA_GSO_ tb check to validate_linkmsg
rtnetlink: call validate_linkmsg in rtnl_create_link
ice: recycle/free all of the fragments from multi-buffer frame
net: phy: mxl-gpy: extend interrupt fix to all impacted variants
net: renesas: rswitch: Fix return value in error path of xmit
net: dsa: mv88e6xxx: Increase wait after reset deactivation
net: ipa: Use correct value for IPA_STATUS_SIZE
tcp: fix mishandling when the sack compression is deferred.
net/sched: flower: fix possible OOB write in fl_set_geneve_opt()
sfc: fix error unwinds in TC offload
net/mlx5: Read embedded cpu after init bit cleared
net/mlx5e: Fix error handling in mlx5e_refresh_tirs
net/mlx5: Ensure af_desc.mask is properly initialized
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix BPF CO-RE naming convention for checking the availability of
fields on 'union perf_mem_data_src' on the running kernel
- Remove the use of llvm-strip on BPF skel object files, not needed,
fixes a build breakage when the llvm package, that contains it in
most distros, isn't installed
- Fix tools that use both evsel->{bpf_counter_list,bpf_filters},
removing them from a union
- Remove extra "--" from the 'perf ftrace latency' --use-nsec option,
previously it was working only when using the '-n' alternative
- Don't stop building when both binutils-devel and a C++ compiler isn't
available to compile the alternative C++ demangle support code,
disable that feature instead
- Sync the linux/in.h and coresight-pmu.h header copies with the kernel
sources
- Fix relative include path to cs-etm.h
* tag 'perf-tools-fixes-for-v6.4-2-2023-05-30' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf evsel: Separate bpf_counter_list and bpf_filters, can be used at the same time
tools headers UAPI: Sync the linux/in.h with the kernel sources
perf cs-etm: Copy kernel coresight-pmu.h header
perf bpf: Do not use llvm-strip on BPF binary
perf build: Don't compile demangle-cxx.cpp if not necessary
perf arm: Fix include path to cs-etm.h
perf bpf filter: Fix a broken perf sample data naming for BPF CO-RE
perf ftrace latency: Remove unnecessary "--" from --use-nsec option
|
|
Selftests are supposed to run on any kernels, including the old ones not
supporting MPTCP.
A new check is then added to make sure MPTCP is supported. If not, the
test stops and is marked as "skipped".
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 259a834fadda ("selftests: mptcp: functional tests for the userspace PM type")
Cc: stable@vger.kernel.org
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
|
Selftests are supposed to run on any kernels, including the old ones not
supporting MPTCP.
A new check is then added to make sure MPTCP is supported. If not, the
test stops and is marked as "skipped".
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: dc65fe82fb07 ("selftests: mptcp: add packet mark test case")
Cc: stable@vger.kernel.org
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
|
Selftests are supposed to run on any kernels, including the old ones not
supporting MPTCP.
A new check is then added to make sure MPTCP is supported. If not, the
test stops and is marked as "skipped".
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 1a418cb8e888 ("mptcp: simult flow self-tests")
Cc: stable@vger.kernel.org
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
|
Selftests are supposed to run on any kernels, including the old ones not
supporting MPTCP.
A new check is then added to make sure MPTCP is supported. If not, the
test stops and is marked as "skipped".
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: df62f2ec3df6 ("selftests/mptcp: add diag interface tests")
Cc: stable@vger.kernel.org
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
|
Selftests are supposed to run on any kernels, including the old ones not
supporting MPTCP.
A new check is then added to make sure MPTCP is supported. If not, the
test stops and is marked as "skipped".
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: b08fbf241064 ("selftests: add test-cases for MPTCP MP_JOIN")
Cc: stable@vger.kernel.org
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
|
Selftests are supposed to run on any kernels, including the old ones not
supporting MPTCP.
A new check is then added to make sure MPTCP is supported. If not, the
test stops and is marked as "skipped".
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: eedbc685321b ("selftests: add PM netlink functional tests")
Cc: stable@vger.kernel.org
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
|
Selftests are supposed to run on any kernels, including the old ones not
supporting MPTCP.
A new check is then added to make sure MPTCP is supported. If not, the
test stops and is marked as "skipped". Note that this check can also
mark the test as failed if 'SELFTESTS_MPTCP_LIB_EXPECT_ALL_FEATURES' env
var is set to 1: by doing that, we can make sure a test is not being
skipped by mistake.
A new shared file is added here to be able to re-used the same check in
the different selftests we have.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 048d19d444be ("mptcp: add basic kselftest for mptcp")
Cc: stable@vger.kernel.org
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
|
BusyBox's 'cmp' command doesn't support the '--bytes' parameter.
Some CIs -- i.e. LKFT -- use BusyBox and have the mptcp_join.sh test
failing [1] because their 'cmp' command doesn't support this '--bytes'
option:
cmp: unrecognized option '--bytes=1024'
BusyBox v1.35.0 () multi-call binary.
Usage: cmp [-ls] [-n NUM] FILE1 [FILE2]
Instead, 'head --bytes' can be used as this option is supported by
BusyBox. A temporary file is needed for this operation.
Because it is apparently quite common to use BusyBox, it is certainly
better to backport this fix to impacted kernels.
Fixes: 6bf41020b72b ("selftests: mptcp: update and extend fastclose test-cases")
Cc: stable@vger.kernel.org
Link: https://qa-reports.linaro.org/lkft/linux-mainline-master/build/v6.3-rc5-5-g148341f0a2f5/testrun/16088933/suite/kselftest-net-mptcp/test/net_mptcp_userspace_pm_sh/log [1]
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
"User events:
- Use long instead of int for storing the enable set/clear bit, as it
was found that big endian machines could end up using the wrong
bits.
- Split allocating mm and attaching it. This keeps the allocation
separate from the registration and avoids various races.
- Remove RCU locking around pin_user_pages_remote() as that can
schedule. The RCU protection is no longer needed with the above
split of mm allocation and attaching.
- Rename the "link" fields of the various structs to something more
meaningful.
- Add comments around user_event_mm struct usage and locking
requirements.
Timerlat tracer:
- Fix missed wakeup of timerlat thread caused by the timerlat
interrupt triggering when tracing is off. The timer interrupt
handler needs to always wake up the timerlat thread regardless if
tracing is enabled or not, otherwise, it will never wake up.
Histograms:
- Fix regression of breaking the "stacktrace" modifier for variables.
That modifier cannot be used for values, but can be used for
variables that are passed from one histogram to the next. This was
broken when adding the restriction to values as the variable logic
used the same code.
- Rename the special field "stacktrace" to "common_stacktrace".
Special fields (that are not actually part of the event, but can
act just like event fields, like 'comm' and 'timestamp') should be
prefixed with 'common_' for consistency. To keep backward
compatibility, 'stacktrace' can still be used (as with the special
field 'cpu'), but can be overridden if the event has a field called
'stacktrace'.
- Update the synthetic event selftests to use the new name (synthetic
events are created by histograms)
Tracing bootup selftests:
- Reorganize the code to keep artifacts of the selftests not compiled
in when selftests are not configured.
- Add various cond_resched() around the selftest code, as the
softlock watchdog was triggering much more often. It appears that
the kernel runs slower now with full debugging enabled.
- While debugging ftrace with ftrace (using an instance ring buffer
instead of the top level one), I found that the selftests were
disabling prints to the debug instance.
This should not happen, as the selftests only disable printing to
the main buffer as the selftests examine the main buffer to see if
it has what it expects, and prints can make the tests fail.
Make the selftests only disable printing to the toplevel buffer,
and leave the instance buffers alone"
* tag 'trace-v6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Have function_graph selftest call cond_resched()
tracing: Only make selftest conditionals affect the global_trace
tracing: Make tracing_selftest_running/delete nops when not used
tracing: Have tracer selftests call cond_resched() before running
tracing: Move setting of tracing_selftest_running out of register_tracer()
tracing/selftests: Update synthetic event selftest to use common_stacktrace
tracing: Rename stacktrace field to common_stacktrace
tracing/histograms: Allow variables to have some modifiers
tracing/user_events: Document user_event_mm one-shot list usage
tracing/user_events: Rename link fields for clarity
tracing/user_events: Remove RCU lock while pinning pages
tracing/user_events: Split up mm alloc and attach
tracing/timerlat: Always wakeup the timerlat thread
tracing/user_events: Use long vs int for atomic bit ops
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull compute express link fixes from Dan Williams:
"The 'media ready' series prevents the driver from acting on bad
capacity information, and it moves some checks earlier in the init
sequence which impacts topics in the queue for 6.5.
Additional hotplug testing uncovered a missing enable for memory
decode. A debug crash fix is also included.
Summary:
- Stop trusting capacity data before the "media ready" indication
- Add missing HDM decoder capability enable for the cold-plug case
- Fix a debug message induced crash"
* tag 'cxl-fixes-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl: Explicitly initialize resources when media is not ready
cxl/port: Fix NULL pointer access in devm_cxl_add_port()
cxl: Move cxl_await_media_ready() to before capacity info retrieval
cxl: Wait Memory_Info_Valid before access memory related info
cxl/port: Enable the HDM decoder capability for switch ports
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix incorrect output in in-tree gpio tools
- fix a shell coding issue in gpio-sim selftests
- correctly set the permissions for debugfs attributes exposed by
gpio-mockup
- fix chip name and pin count in gpio-f7188x for one of the supported
models
- fix numberspace pollution when using dynamically and statically
allocated GPIOs together
* tag 'gpio-fixes-for-v6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio-f7188x: fix chip name and pin count on Nuvoton chip
gpiolib: fix allocation of mixed dynamic/static GPIOs
gpio: mockup: Fix mode of debugfs files
selftests: gpio: gpio-sim: Fix BUG: test FAILED due to recent change
tools: gpio: fix debounce_period_us output of lsgpio
|
|
same time
'struct evsel' uses a union for the two lists. This turned out to be
error prone.
For example:
[root@quaco ~]# perf stat --bpf-prog 5246
Error: cpu-clock event does not have sample flags 66c660
failed to set filter "(null)" on event cpu-clock with 2 (No such file or directory)
[root@quaco ~]# perf stat --bpf-prog 5246
Fix this issue by separating the two lists.
Fixes: 56ec9457a4a20c5e ("perf bpf filter: Implement event sample filtering")
Signed-off-by: Song Liu <song@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: kernel-team@meta.com
Link: https://lore.kernel.org/r/20230519235757.3613719-1-song@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Picking the changes from:
3632679d9e4f879f ("ipv{4,6}/raw: fix output xfrm lookup wrt protocol")
That includes a define (IP_PROTOCOL) that isn't being used in generating
any id -> string table used by 'perf trace'.
Addresses this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/in.h' differs from latest version at 'include/uapi/linux/in.h'
diff -u tools/include/uapi/linux/in.h include/uapi/linux/in.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/lkml/ZHD/Ms0DMq7viaq+@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Copy the kernel version of the header to fix the header diff build
warning. Some new definitions were only added to the tools side header,
but these are only used in Perf so move them to a different header.
Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Link: https://lore.kernel.org/r/20230522102604.1081416-1-james.clark@arm.com
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: acme@kernel.org
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: coresight@lists.linaro.org
Cc: siyanteng@loongson.cn
Cc: John Garry <john.g.garry@oracle.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-perf-users@vger.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
llvm-strip is not really required. Remove this dependency to make it
easier to build perf with BUILD_BPF_SKEL=1.
Committer notes:
This removes the need for the 'llvm' package just to get llvm-strip.
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Song Liu <song@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
demangle-cxx.cpp requires a C++ compiler, but feature checks may fail
because of the absence of this. Add a CONFIG_CXX_DEMANGLE so that the
source isn't built if not supported. Copy libbfd and cplus demangle
variants to a weak symbol-elf.c version so they aren't dependent on
C++. These variants are only built with the build option
BUILD_NONDISTRO=1.
Committer note:
This also handles this build break when a C++ compiler isn't available:
CXX /tmp/build/perf/util/demangle-cxx.o
/bin/sh: g++: command not found
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qi Liu <liuqi115@huawei.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Link: https://lore.kernel.org/r/20230417192546.99923-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Change "../cs-etm.h" to just "../../../util/cs-etm.h" as ../cs-etm.h
doesn't exist.
Suggested-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230515165039.544045-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
BPF CO-RE requires 3 underscores for the ignored suffix rule but it
mistakenly used only 2. Let's fix it.
Fixes: 3a8b8fc3174891c4 ("perf bpf filter: Support pre-5.16 kernels where 'mem_hops' isn't in 'union perf_mem_data_src'")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20230525000307.3202449-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
The option name should not have the dashes. Current version shows four
dashes for the option.
$ perf ftrace latency -h
Usage: perf ftrace [<options>] [<command>]
or: perf ftrace [<options>] -- [<command>] [<options>]
or: perf ftrace {trace|latency} [<options>] [<command>]
or: perf ftrace {trace|latency} [<options>] -- [<command>] [<options>]
-b, --use-bpf Use BPF to measure function latency
-n, ----use-nsec Use nano-second histogram
-T, --trace-funcs <func>
Show latency of given function
Fixes: 84005bb6148618cc ("perf ftrace latency: Add -n/--use-nsec option")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230525212038.3535851-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Python 3.9.0 or newer supports combining dicts() with |,
but older versions of Python are still used in the wild
(e.g. on CentOS 8, which goes EoL May 31, 2024).
With Python 3.6.8 we get:
TypeError: unsupported operand type(s) for |: 'dict' and 'dict'
Use older syntax. Tested with non-legacy families only.
Fixes: f036d936ca57 ("tools: ynl: Add fixed-header support to ynl")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Tested-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230524170712.2036128-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bluetooth and bpf.
Current release - regressions:
- net: fix skb leak in __skb_tstamp_tx()
- eth: mtk_eth_soc: fix QoS on DSA MAC on non MTK_NETSYS_V2 SoCs
Current release - new code bugs:
- handshake:
- fix sock->file allocation
- fix handshake_dup() ref counting
- bluetooth:
- fix potential double free caused by hci_conn_unlink
- fix UAF in hci_conn_hash_flush
Previous releases - regressions:
- core: fix stack overflow when LRO is disabled for virtual
interfaces
- tls: fix strparser rx issues
- bpf:
- fix many sockmap/TCP related issues
- fix a memory leak in the LRU and LRU_PERCPU hash maps
- init the offload table earlier
- eth: mlx5e:
- do as little as possible in napi poll when budget is 0
- fix using eswitch mapping in nic mode
- fix deadlock in tc route query code
Previous releases - always broken:
- udplite: fix NULL pointer dereference in __sk_mem_raise_allocated()
- raw: fix output xfrm lookup wrt protocol
- smc: reset connection when trying to use SMCRv2 fails
- phy: mscc: enable VSC8501/2 RGMII RX clock
- eth: octeontx2-pf: fix TSOv6 offload
- eth: cdc_ncm: deal with too low values of dwNtbOutMaxSize"
* tag 'net-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (79 commits)
udplite: Fix NULL pointer dereference in __sk_mem_raise_allocated().
net: phy: mscc: enable VSC8501/2 RGMII RX clock
net: phy: mscc: remove unnecessary phydev locking
net: phy: mscc: add support for VSC8501
net: phy: mscc: add VSC8502 to MODULE_DEVICE_TABLE
net/handshake: Enable the SNI extension to work properly
net/handshake: Unpin sock->file if a handshake is cancelled
net/handshake: handshake_genl_notify() shouldn't ignore @flags
net/handshake: Fix uninitialized local variable
net/handshake: Fix handshake_dup() ref counting
net/handshake: Remove unneeded check from handshake_dup()
ipv6: Fix out-of-bounds access in ipv6_find_tlv()
net: ethernet: mtk_eth_soc: fix QoS on DSA MAC on non MTK_NETSYS_V2 SoCs
docs: netdev: document the existence of the mail bot
net: fix skb leak in __skb_tstamp_tx()
r8169: Use a raw_spinlock_t for the register locks.
page_pool: fix inconsistency for page_pool_ring_[un]lock()
bpf, sockmap: Test progs verifier error with latest clang
bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer with drops
bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer
...
|
|
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2023-05-24
We've added 19 non-merge commits during the last 10 day(s) which contain
a total of 20 files changed, 738 insertions(+), 448 deletions(-).
The main changes are:
1) Batch of BPF sockmap fixes found when running against NGINX TCP tests,
from John Fastabend.
2) Fix a memleak in the LRU{,_PERCPU} hash map when bucket locking fails,
from Anton Protopopov.
3) Init the BPF offload table earlier than just late_initcall,
from Jakub Kicinski.
4) Fix ctx access mask generation for 32-bit narrow loads of 64-bit fields,
from Will Deacon.
5) Remove a now unsupported __fallthrough in BPF samples,
from Andrii Nakryiko.
6) Fix a typo in pkg-config call for building sign-file,
from Jeremy Sowden.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf, sockmap: Test progs verifier error with latest clang
bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer with drops
bpf, sockmap: Test FIONREAD returns correct bytes in rx buffer
bpf, sockmap: Test shutdown() correctly exits epoll and recv()=0
bpf, sockmap: Build helper to create connected socket pair
bpf, sockmap: Pull socket helpers out of listen test for general use
bpf, sockmap: Incorrectly handling copied_seq
bpf, sockmap: Wake up polling after data copy
bpf, sockmap: TCP data stall on recv before accept
bpf, sockmap: Handle fin correctly
bpf, sockmap: Improved check for empty queue
bpf, sockmap: Reschedule is now done through backlog
bpf, sockmap: Convert schedule_work into delayed_work
bpf, sockmap: Pass skb ownership through read_skb
bpf: fix a memory leak in the LRU and LRU_PERCPU hash maps
bpf: Fix mask generation for 32-bit narrow loads of 64-bit fields
samples/bpf: Drop unnecessary fallthrough
bpf: netdev: init the offload table earlier
selftests/bpf: Fix pkg-config call building sign-file
====================
Link: https://lore.kernel.org/r/20230524170839.13905-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
With the rename of the stacktrace field to common_stacktrace, update the
selftests to reflect this change. Copy the current selftest to test the
backward compatibility "stacktrace" keyword. Also the "requires" of that
test was incorrect, so it would never actually ran before. That is fixed
now.
Link: https://lore.kernel.org/linux-trace-kernel/20230523225402.55951f2f@rorschach.local.home
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Tom Zanussi <zanussi@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
|
|
With a relatively recent clang (7090c10273119) and with this commit
to fix warnings in selftests (c8ed668593972) that uses __sink(err)
to resolve unused variables. We get the following verifier error.
root@6e731a24b33a:/host/tools/testing/selftests/bpf# ./test_sockmap
libbpf: prog 'bpf_sockmap': BPF program load failed: Permission denied
libbpf: prog 'bpf_sockmap': -- BEGIN PROG LOAD LOG --
0: R1=ctx(off=0,imm=0) R10=fp0
; op = (int) skops->op;
0: (61) r2 = *(u32 *)(r1 +0) ; R1=ctx(off=0,imm=0) R2_w=scalar(umax=4294967295,var_off=(0x0; 0xffffffff))
; switch (op) {
1: (16) if w2 == 0x4 goto pc+5 ; R2_w=scalar(umax=4294967295,var_off=(0x0; 0xffffffff))
2: (56) if w2 != 0x5 goto pc+15 ; R2_w=5
; lport = skops->local_port;
3: (61) r2 = *(u32 *)(r1 +68) ; R1=ctx(off=0,imm=0) R2_w=scalar(umax=4294967295,var_off=(0x0; 0xffffffff))
; if (lport == 10000) {
4: (56) if w2 != 0x2710 goto pc+13 18: R1=ctx(off=0,imm=0) R2=scalar(umax=4294967295,var_off=(0x0; 0xffffffff)) R10=fp0
; __sink(err);
18: (bc) w1 = w0
R0 !read_ok
processed 18 insns (limit 1000000) max_states_per_insn 0 total_states 2 peak_states 2 mark_read 1
-- END PROG LOAD LOG --
libbpf: prog 'bpf_sockmap': failed to load: -13
libbpf: failed to load object 'test_sockmap_kern.bpf.o'
load_bpf_file: (-1) No such file or directory
ERROR: (-1) load bpf failed
libbpf: prog 'bpf_sockmap': BPF program load failed: Permission denied
libbpf: prog 'bpf_sockmap': -- BEGIN PROG LOAD LOG --
0: R1=ctx(off=0,imm=0) R10=fp0
; op = (int) skops->op;
0: (61) r2 = *(u32 *)(r1 +0) ; R1=ctx(off=0,imm=0) R2_w=scalar(umax=4294967295,var_off=(0x0; 0xffffffff))
; switch (op) {
1: (16) if w2 == 0x4 goto pc+5 ; R2_w=scalar(umax=4294967295,var_off=(0x0; 0xffffffff))
2: (56) if w2 != 0x5 goto pc+15 ; R2_w=5
; lport = skops->local_port;
3: (61) r2 = *(u32 *)(r1 +68) ; R1=ctx(off=0,imm=0) R2_w=scalar(umax=4294967295,var_off=(0x0; 0xffffffff))
; if (lport == 10000) {
4: (56) if w2 != 0x2710 goto pc+13 18: R1=ctx(off=0,imm=0) R2=scalar(umax=4294967295,var_off=(0x0; 0xffffffff)) R10=fp0
; __sink(err);
18: (bc) w1 = w0
R0 !read_ok
processed 18 insns (limit 1000000) max_states_per_insn 0 total_states 2 peak_states 2 mark_read 1
-- END PROG LOAD LOG --
libbpf: prog 'bpf_sockmap': failed to load: -13
libbpf: failed to load object 'test_sockhash_kern.bpf.o'
load_bpf_file: (-1) No such file or directory
ERROR: (-1) load bpf failed
libbpf: prog 'bpf_sockmap': BPF program load failed: Permission denied
libbpf: prog 'bpf_sockmap': -- BEGIN PROG LOAD LOG --
0: R1=ctx(off=0,imm=0) R10=fp0
; op = (int) skops->op;
0: (61) r2 = *(u32 *)(r1 +0) ; R1=ctx(off=0,imm=0) R2_w=scalar(umax=4294967295,var_off=(0x0; 0xffffffff))
; switch (op) {
1: (16) if w2 == 0x4 goto pc+5 ; R2_w=scalar(umax=4294967295,var_off=(0x0; 0xffffffff))
2: (56) if w2 != 0x5 goto pc+15 ; R2_w=5
; lport = skops->local_port;
3: (61) r2 = *(u32 *)(r1 +68) ; R1=ctx(off=0,imm=0) R2_w=scalar(umax=4294967295,var_off=(0x0; 0xffffffff))
; if (lport == 10000) {
4: (56) if w2 != 0x2710 goto pc+13 18: R1=ctx(off=0,imm=0) R2=scalar(umax=4294967295,var_off=(0x0; 0xffffffff)) R10=fp0
; __sink(err);
18: (bc) w1 = w0
R0 !read_ok
processed 18 insns (limit 1000000) max_states_per_insn 0 total_states 2 peak_states 2 mark_read 1
-- END PROG LOAD LOG --
To fix simply remove the err value because its not actually used anywhere
in the testing. We can investigate the root cause later. Future patch should
probably actually test the err value as well. Although if the map updates
fail they will get caught eventually by userspace.
Fixes: c8ed668593972 ("selftests/bpf: fix lots of silly mistakes pointed out by compiler")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20230523025618.113937-15-john.fastabend@gmail.com
|
|
When BPF program drops pkts the sockmap logic 'eats' the packet and
updates copied_seq. In the PASS case where the sk_buff is accepted
we update copied_seq from recvmsg path so we need a new test to
handle the drop case.
Original patch series broke this resulting in
test_sockmap_skb_verdict_fionread:PASS:ioctl(FIONREAD) error 0 nsec
test_sockmap_skb_verdict_fionread:FAIL:ioctl(FIONREAD) unexpected ioctl(FIONREAD): actual 1503041772 != expected 256
After updated patch with fix.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20230523025618.113937-14-john.fastabend@gmail.com
|
|
A bug was reported where ioctl(FIONREAD) returned zero even though the
socket with a SK_SKB verdict program attached had bytes in the msg
queue. The result is programs may hang or more likely try to recover,
but use suboptimal buffer sizes.
Add a test to check that ioctl(FIONREAD) returns the correct number of
bytes.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20230523025618.113937-13-john.fastabend@gmail.com
|
|
When session gracefully shutdowns epoll needs to wake up and any recv()
readers should return 0 not the -EAGAIN they previously returned.
Note we use epoll instead of select to test the epoll wake on shutdown
event as well.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20230523025618.113937-12-john.fastabend@gmail.com
|
|
A common operation for testing is to spin up a pair of sockets that are
connected. Then we can use these to run specific tests that need to
send data, check BPF programs and so on.
The sockmap_listen programs already have this logic lets move it into
the new sockmap_helpers header file for general use.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20230523025618.113937-11-john.fastabend@gmail.com
|
|
No functional change here we merely pull the helpers in sockmap_listen.c
into a header file so we can use these in other programs. The tests we
are about to add aren't really _listen tests so doesn't make sense
to add them here.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20230523025618.113937-10-john.fastabend@gmail.com
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fail graciously if BUILD_BPF_SKEL=1 is specified and clang isn't
available
- Add empty 'struct rq' to 'perf lock contention' to satisfy libbpf
'runqueue' type verification. This feature is built only with
BUILD_BPF_SKEL=1
- Make vmlinux.h use bpf.h and perf_event.h in source directory, not
system ones that may be old and not have things like 'union
perf_sample_weight'
- Add system include paths to BPF builds to pick things missing in the
headers included by clang -target bpf
- Update various header copies with the kernel sources
- Change divide by zero and not supported events behavior to show
'nan'/'not counted' in 'perf stat' output.
This happens when using things like 'perf stat -M TopdownL2 true',
involving JSON metrics
- Update no event/metric expectations affected by using JSON metrics in
'perf stat -ddd' perf test
- Avoid segv with 'perf stat --topdown' for metrics without a group
- Do not assume which events may have a PMU name, allowing the logic to
keep an AUX event group together. Makes this usecase work again:
$ perf record --no-bpf-event -c 10 -e '{intel_pt//,tlb_flush.stlb_any/aux-sample-size=8192/pp}:u' -- sleep 0.1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.078 MB perf.data ]
$ perf script -F-dso,+addr | grep -C5 tlb_flush.stlb_any | head -11
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cc82a2 dl_main+0x9a2 => 7f5350cb38f0 _dl_add_to_namespace_list+0x0
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cb3908 _dl_add_to_namespace_list+0x18 => 7f5350cbb080 rtld_mutex_dummy+0x0
sleep 20444 [003] 7939.510243: 1 branches:uH: 7f5350cc8350 dl_main+0xa50 => 0 [unknown]
sleep 20444 [003] 7939.510244: 1 branches:uH: 7f5350cc83ca dl_main+0xaca => 7f5350caeb60 _dl_process_pt_gnu_property+0x0
sleep 20444 [003] 7939.510245: 1 branches:uH: 7f5350caeb60 _dl_process_pt_gnu_property+0x0 => 0 [unknown]
sleep 20444 7939.510245: 10 tlb_flush.stlb_any/aux-sample-size=8192/pp: 0 7f5350caeb60 _dl_process_pt_gnu_property+0x0
sleep 20444 [003] 7939.510254: 1 branches:uH: 7f5350cc87fe dl_main+0xefe => 7f5350ccd240 strcmp+0x0
sleep 20444 [003] 7939.510254: 1 branches:uH: 7f5350cc8862 dl_main+0xf62 => 0 [unknown]
- Add a check for the above use case in 'perf test test_intel_pt'
- Fix build with refcount checking on arm64, it was still accessing
fields that need to be wrapped so that the refcounted struct gets
checked
- Fix contextid validation in ARM's CS-ETM, so that older kernels
without that field can still be supported
- Skip unsupported aggregation for stat events found in perf.data files
in 'perf script'
- Add stat test for record and script to check the previous problem
- Remove needless debuginfod queries from 'perf test java symbol', this
was just making the test take a long time to complete
- Address python SafeConfigParser() deprecation warning in 'perf test
attr'
- Fix __NR_execve undeclared on i386 'perf bench syscall' build error
* tag 'perf-tools-fixes-for-v6.4-1-2023-05-20' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (33 commits)
perf bench syscall: Fix __NR_execve undeclared build error
perf test attr: Fix python SafeConfigParser() deprecation warning
perf test attr: Update no event/metric expectations
tools headers disabled-features: Sync with the kernel sources
tools headers UAPI: Sync arch prctl headers with the kernel sources
tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench'
tools headers x86 cpufeatures: Sync with the kernel sources
tools headers UAPI: Sync s390 syscall table file that wires up the memfd_secret syscall
tools headers UAPI: Sync linux/prctl.h with the kernel sources
perf metrics: Avoid segv with --topdown for metrics without a group
perf lock contention: Add empty 'struct rq' to satisfy libbpf 'runqueue' type verification
perf cs-etm: Fix contextid validation
perf arm64: Fix build with refcount checking
perf test: Add stat test for record and script
perf script: Skip aggregation for stat events
perf build: Add system include paths to BPF builds
perf bpf skels: Make vmlinux.h use bpf.h and perf_event.h in source directory
perf parse-events: Do not break up AUX event group
perf test test_intel_pt.sh: Test sample mode with event with PMU name
perf evsel: Modify group pmu name for software events
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix two issues in the cpupower utility and get rid of a spurious
warning message printed to the kernel log by the ACPI cpufreq driver
after recent changes.
Specifics:
- Get rid of a warning message printed by the ACPI cpufreq driver
after recent changes in it when anohter CPU performance scaling
driver is registered already when it starts (Petr Pavlu)
- Make cpupower read TSC on each CPU right before reading MPERF so as
to reduce the potential time difference between the TSC and MPERF
accesses and improve the C0 percentage calculation (Wyes Karny)
- Fix a possible file handle leak and clean up the code in the
sysfs_get_enabled() function in cpupower (Hao Zeng)"
* tag 'pm-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: ACPI: Prevent a warning when another frequency driver is loaded
cpupower: Make TSC read per CPU for Mperf monitor
cpupower:Fix resource leaks in sysfs_get_enabled()
|
|
The __NR_execve definition for i386 was deleted by mistake
in the commit ece7f7c0507c ("perf bench syscall: Add fork
syscall benchmark"), add it to fix the build error on i386.
Fixes: ece7f7c0507cc147 ("perf bench syscall: Add fork syscall benchmark")
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: loongson-kernel@lists.loongnix.cn
Closes: https://lore.kernel.org/all/CA+G9fYvgBR1iB0CorM8OC4AM_w_tFzyQKHc+rF6qPzJL=TbfDQ@mail.gmail.com/
Link: https://lore.kernel.org/r/1684480657-2375-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux
Pull cpupower utility fixes for 6.4-rc3 from Shuah Khan:
"This cpupower fixes update for Linux 67.4-rc3 consists of:
- a resource leak fix
- fix drift in C0 percentage calculation due to System-wide TSC read.
To lower this drift read TSC per CPU and also just after mperf read.
This technique improves C0 percentage calculation in Mperf monitor"
* tag 'linux-cpupower-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
cpupower: Make TSC read per CPU for Mperf monitor
cpupower:Fix resource leaks in sysfs_get_enabled()
|
|
Address the warning:
```
tests/attr.py:155: DeprecationWarning: The SafeConfigParser class has
been renamed to ConfigParser in Python 3.2. This alias will be
removed in Python 3.12. Use ConfigParser directly instead.
parser = configparser.SafeConfigParser()
```
by removing the word 'Safe'.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20230517225707.2682235-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Previously hard coded events/metrics were used, update for the use of
the TopdownL1 json metric group.
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Fixes: 94b1a603fca78388 ("perf stat: Add TopdownL1 metric as a default if present")
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20230517225707.2682235-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
In the end of the test, there will be an error message induced by the
`ip netns del ns1` command in cleanup()
Tests passed: 201
Tests failed: 0
Cannot remove namespace file "/run/netns/ns1": No such file or directory
This can even be reproduced with just `./fib_tests.sh -h` as we're
calling cleanup() on exit.
Redirect the error message to /dev/null to mute it.
V2: Update commit message and fixes tag.
V3: resubmit due to missing netdev ML in V2
Fixes: b60417a9f2b8 ("selftest: fib_tests: Always cleanup before exit")
Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Move cxl_await_media_ready() to cxl_pci probe before driver starts issuing
IDENTIFY and retrieving memory device information to ensure that the
device is ready to provide the information. Allow cxl_pci_probe() to succeed
even if media is not ready. Cache the media failure in cxlds and don't ask
the device for any media information.
The rationale for proceeding in the !media_ready case is to allow for
mailbox operations to interrogate and/or remediate the device. After
media is repaired then rebinding the cxl_pci driver is expected to
restart the capacity scan.
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Fixes: b39cb1052a5c ("cxl/mem: Register CXL memX devices")
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/168445310026.3251520.8124296540679268206.stgit@djiang5-mobl3
[djbw: fixup cxl_test]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
|
|
Derick noticed, when testing hot plug, that hot-add behaves nominally
after a removal. However, if the hot-add is done without a prior
removal, CXL.mem accesses fail. It turns out that the original
implementation of the port driver and region programming wrongly assumed
that platform-firmware always enables the host-bridge HDM decoder
capability. Add support turning on switch-level HDM decoders in the case
where platform-firmware has not.
The implementation is careful to only arrange for the enable to be
undone if the current instance of the driver was the one that did the
enable. This is to interoperate with platform-firmware that may expect
CXL.mem to remain active after the driver is shutdown. This comes at the
cost of potentially not shutting down the enable on kexec flows, but it
is mitigated by the fact that the related HDM decoders still need to be
enabled on an individual basis.
Cc: <stable@vger.kernel.org>
Reported-by: Derick Marks <derick.w.marks@intel.com>
Fixes: 54cdbf845cf7 ("cxl/port: Add a driver for 'struct cxl_port' objects")
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/168437998331.403037.15719879757678389217.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
|
