Ingo Molnar b88d4f1d39 [PATCH] i386: break out of recursion in stackframe walk ... If CONFIG_FRAME_POINTERS is enabled, and one does a dump_stack() during early SMP init, an infinite stackdump and a bootup hang happens: [<c0104e7f>] show_trace+0xd/0xf [<c0104e96>] dump_stack+0x15/0x17 [<c01440df>] save_trace+0xc3/0xce [<c014527d>] mark_lock+0x8c/0x4fe [<c0145df5>] __lockdep_acquire+0x44e/0xaa5 [<c0146798>] lockdep_acquire+0x68/0x84 [<c1048699>] _spin_lock+0x21/0x2f [<c010d918>] prepare_set+0xd/0x5d [<c010daa8>] generic_set_all+0x1d/0x201 [<c010ca9a>] mtrr_ap_init+0x23/0x3b [<c010ada8>] identify_cpu+0x2a7/0x2af [<c01192a7>] smp_store_cpu_info+0x2f/0xb4 [<c01197d0>] start_secondary+0xb5/0x3ec [<c104ec11>] end_of_stack_stop_unwind_function+0x1/0x4 [<c104ec11>] end_of_stack_stop_unwind_function+0x1/0x4 [<c104ec11>] end_of_stack_stop_unwind_function+0x1/0x4 [<c104ec11>] end_of_stack_stop_unwind_function+0x1/0x4 [<c104ec11>] end_of_stack_stop_unwind_function+0x1/0x4 [<c104ec11>] end_of_stack_stop_unwind_function+0x1/0x4 [<c104ec11>] end_of_stack_stop_unwind_function+0x1/0x4 [<c104ec11>] end_of_stack_stop_unwind_function+0x1/0x4 [...] Due to "end_of_stack_stop_unwind_function" recursing back to itself in the EBP stackframe-walker. So avoid this type of recursion when walking the stack . Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-06-23 07:42:56 -07:00
..
alpha	[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry	2006-06-23 07:42:45 -07:00
arm	[ARM] 3537/1: Rework DMA-bounce locking for finer granularity	2006-06-22 22:27:14 +01:00
arm26	…
cris	…
frv	[PATCH] frv: trivial cleanups in frv_ksyms.c	2006-06-23 07:42:55 -07:00
h8300	…
i386	[PATCH] i386: break out of recursion in stackframe walk	2006-06-23 07:42:56 -07:00
ia64	[PATCH] page migration: sys_move_pages(): support moving of individual pages	2006-06-23 07:42:53 -07:00
m32r	…
m68k	…
m68knommu	…
mips	[PATCH] mips: fix number of mremap arguments	2006-06-23 07:42:56 -07:00
parisc	[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry	2006-06-23 07:42:45 -07:00
powerpc	[PATCH] VFS: Permit filesystem to override root dentry on mount	2006-06-23 07:42:45 -07:00
ppc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc	2006-06-22 22:11:30 -07:00
s390	…
sh	…
sh64	…
sparc	[PATCH] sparc build breakage	2006-06-22 15:05:55 -07:00
sparc64	[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry	2006-06-23 07:42:45 -07:00
um	Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc	2006-06-22 22:11:30 -07:00
v850	…
x86_64	[PATCH] sys_move_pages: 32bit support (i386, x86_64)	2006-06-23 07:42:53 -07:00
xtensa	[PATCH] zlib_inflate: Upgrade library code to a recent version	2006-06-22 15:05:58 -07:00