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| author | Geoff Levand <geoff@infradead.org> | 2020-05-09 21:58:32 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-25 16:32:57 +0300 |
| commit | 020d0e3730308ecd718974bcd557b020b0b04798 (patch) | |
| tree | 45de7a82f7e0dc6bc9e7d9426a6ceff6f6806548 /drivers/vfio | |
| parent | 45a4f5d392f8308652695f7e24b9697a09e2964b (diff) | |
| download | linux-020d0e3730308ecd718974bcd557b020b0b04798.tar.xz | |
powerpc/ps3: Fix kexec shutdown hang
[ Upstream commit 126554465d93b10662742128918a5fc338cda4aa ]
The ps3_mm_region_destroy() and ps3_mm_vas_destroy() routines
are called very late in the shutdown via kexec's mmu_cleanup_all
routine. By the time mmu_cleanup_all runs it is too late to use
udbg_printf, and calling it will cause PS3 systems to hang.
Remove all debugging statements from ps3_mm_region_destroy() and
ps3_mm_vas_destroy() and replace any error reporting with calls
to lv1_panic.
With this change builds with 'DEBUG' defined will not cause kexec
reboots to hang, and builds with 'DEBUG' defined or not will end
in lv1_panic if an error is encountered.
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/7325c4af2b4c989c19d6a26b90b1fec9c0615ddf.1589049250.git.geoff@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/vfio')
0 files changed, 0 insertions, 0 deletions