AuxXxilium/linux_dsm_epyc7002
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12660b1702
linux_dsm_epyc7002/arch
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Li Zhong 12660b1702 powerpc: Fix MAX_STACK_TRACE_ENTRIES too low warning ! 
This patch tries to fix the following BUG report:

[    0.012313] BUG: MAX_STACK_TRACE_ENTRIES too low!
[    0.012318] turning off the locking correctness validator.
[    0.012321] Call Trace:
[    0.012330] [c00000017666f6d0] [c000000000012128] .show_stack+0x78/0x184 (unreliable)
[    0.012339] [c00000017666f780] [c0000000000b6348] .save_trace+0x12c/0x14c
[    0.012345] [c00000017666f800] [c0000000000b7448] .mark_lock+0x2bc/0x710
[    0.012351] [c00000017666f8b0] [c0000000000bb198] .__lock_acquire+0x748/0xaec
[    0.012357] [c00000017666f9b0] [c0000000000bb684] .lock_acquire+0x148/0x194
[    0.012365] [c00000017666fa80] [c00000000069371c] .mutex_lock_nested+0x84/0x4ec
[    0.012372] [c00000017666fb90] [c000000000096998] .smpboot_register_percpu_thread+0x3c/0x10c
[    0.012380] [c00000017666fc30] [c0000000009ba910] .spawn_ksoftirqd+0x28/0x48
[    0.012386] [c00000017666fcb0] [c00000000000a98c] .do_one_initcall+0xd8/0x1d0
[    0.012392] [c00000017666fd60] [c00000000000b1f8] .kernel_init+0x120/0x398

[    0.012398] [c00000017666fe30] [c000000000009ad4] .ret_from_kernel_thread+0x5c/0x64
[    0.012404] [c00000017666fa00] [c00000017666fb20] 0xc00000017666fb20
[    0.012410] [c00000017666fa80] [c00000000069371c] .mutex_lock_nested+0x84/0x4ec
[    0.012416] [c00000017666fb90] [c000000000096998] .smpboot_register_percpu_thread+0x3c/0x10c
[    0.012422] [c00000017666fc30] [c0000000009ba910] .spawn_ksoftirqd+0x28/0x48
[    0.012427] [c00000017666fcb0] [c00000000000a98c] .do_one_initcall+0xd8/0x1d0
[    0.012433] [c00000017666fd60] [c00000000000b1f8] .kernel_init+0x120/0x398

[    0.012439] [c00000017666fe30] [c000000000009ad4] .ret_from_kernel_thread+0x5c/0x64
.......

The reason is that the back chain of c00000017666fe30
(ret_from_kernel_thread) contains some invalid value, which might form a
loop.

Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-11-15 13:00:17 +11:00
..
alpha Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
arm A number of pinctrl fixes for the v3.7 series: 2012-10-16 18:10:26 -07:00
arm64 UAPI headers for arm64 together with some clean-up to make it possible: 2012-10-13 11:20:04 +09:00
avr32 Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
blackfin Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
c6x Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
cris Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
frv FRV: Fix const sections change 2012-10-16 18:49:15 -07:00
h8300 Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
hexagon Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
ia64 Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
m32r Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
m68k Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
microblaze Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
mips Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2012-10-14 14:39:05 -07:00
mn10300 Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
openrisc Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
parisc Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
powerpc powerpc: Fix MAX_STACK_TRACE_ENTRIES too low warning ! 2012-11-15 13:00:17 +11:00
s390 Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
score Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
sh sh: Wire up kcmp syscall. 2012-10-15 13:54:29 +09:00
sparc sparc64: Fix bit twiddling in sparc_pmu_enable_event(). 2012-10-16 13:05:25 -07:00
tile Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
um Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-10-13 10:05:52 +09:00
unicore32 Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
x86 kbuild: Fix accidental revert in commit fe04ddf 2012-10-15 13:01:05 -07:00
xtensa Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
.gitignore
Kconfig Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00