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
..
boot	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2012-10-06 03:16:12 +09:00
configs	powerpc/pseries: Double NR_CPUS in defconfig	2012-11-15 12:59:17 +11:00
include	powerpc/udbg: Remove unused udbg_read()	2012-11-15 12:59:33 +11:00
kernel	powerpc: Fix MAX_STACK_TRACE_ENTRIES too low warning !	2012-11-15 13:00:17 +11:00
kvm	powerpc: Build fix for powerpc KVM	2012-10-18 10:37:52 +11:00
lib	powerpc: Fix VMX fix for memcpy case	2012-10-04 18:02:43 +10:00
math-emu	powerpc/math_emu/efp: Look for errata handler when type mismatches	2011-10-06 23:36:47 -05:00
mm	powerpc/47x: Use the new ppc-opcode infrastructure	2012-11-15 12:59:24 +11:00
net	powerpc: Start using ___PPC_RA/B/S/T where necessary	2012-07-10 19:18:25 +10:00
oprofile	mm: use mm->exe_file instead of first VM_EXECUTABLE vma->vm_file	2012-10-09 16:22:18 +09:00
perf	Revert "powerpc/perf: Use pmc_overflow() to detect rolled back events"	2012-10-18 10:36:11 +11:00
platforms	powerpc/pnv: Avoid bogus output	2012-11-15 13:00:08 +11:00
sysdev	powerpc/sysdev: Use module_platform_driver macro	2012-11-15 13:00:05 +11:00
xmon	powerpc/xmon: Fallback to printk() in xmon_printf() if udbg is not setup	2012-11-15 13:00:02 +11:00
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
Kconfig.debug	powerpc: IOMMU fault injection	2012-07-10 19:18:59 +10:00
Makefile	powerpc: dtc is required to build dtb files	2012-11-15 12:59:21 +11:00
relocs_check.pl	powerpc: Process dynamic relocations for kernel	2011-12-20 10:21:08 -05:00