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authorDaniel Jordan <daniel.m.jordan@oracle.com>2017-04-10 18:50:52 +0300
committerDavid S. Miller <davem@davemloft.net>2017-04-18 23:11:07 +0300
commit395102db441abb8fd18fec5dd81428b5120232af (patch)
treebcb11efdbc770a327a54259882a776f2a064cd3d /lib
parentfb5e2154b764812705dce84881319471d27606fb (diff)
downloadlinux-395102db441abb8fd18fec5dd81428b5120232af.tar.xz
sparc64: Use LOCKDEP_SMALL, not PROVE_LOCKING_SMALL
CONFIG_PROVE_LOCKING_SMALL shrinks the memory usage of lockdep so the kernel text, data, and bss fit in the required 32MB limit, but this option is not set for every config that enables lockdep. A 4.10 kernel fails to boot with the console output Kernel: Using 8 locked TLB entries for main kernel image. hypervisor_tlb_lock[2000000:0:8000000071c007c3:1]: errors with f Program terminated with these config options CONFIG_LOCKDEP=y CONFIG_LOCK_STAT=y CONFIG_PROVE_LOCKING=n To fix, rename CONFIG_PROVE_LOCKING_SMALL to CONFIG_LOCKDEP_SMALL, and enable this option with CONFIG_LOCKDEP=y so we get the reduced memory usage every time lockdep is turned on. Tested that CONFIG_LOCKDEP_SMALL is set to 'y' if and only if CONFIG_LOCKDEP is set to 'y'. When other lockdep-related config options that select CONFIG_LOCKDEP are enabled (e.g. CONFIG_LOCK_STAT or CONFIG_PROVE_LOCKING), verified that CONFIG_LOCKDEP_SMALL is also enabled. Fixes: e6b5f1be7afe ("config: Adding the new config parameter CONFIG_PROVE_LOCKING_SMALL for sparc") Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com> Reviewed-by: Babu Moger <babu.moger@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.debug6
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 97d62c2da6c2..fa16c0f82d6e 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1103,9 +1103,6 @@ config PROVE_LOCKING
For more details, see Documentation/locking/lockdep-design.txt.
-config PROVE_LOCKING_SMALL
- bool
-
config LOCKDEP
bool
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
@@ -1114,6 +1111,9 @@ config LOCKDEP
select KALLSYMS
select KALLSYMS_ALL
+config LOCKDEP_SMALL
+ bool
+
config LOCK_STAT
bool "Lock usage statistics"
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT