git.baikalelectronics.ru Git - kernel.git/commit

]> git.baikalelectronics.ru Git - kernel.git/commit

author	Richard Weinberger <richard@nod.at>
	Mon, 23 Sep 2013 15:38:02 +0000 (17:38 +0200)
committer	Richard Weinberger <richard@nod.at>
	Sun, 17 Nov 2013 10:27:30 +0000 (11:27 +0100)
commit	27b688e0b0d287915c9f3dd0cd417e7813fe8f4a
tree	0e3051e2d357548d086a2ac00c4bfe201fe4e31d	tree \| snapshot
parent	920ca5b9b3551ea7c0a300f456ca9464c825552a	commit \| diff

um: Make stack trace reliable against kernel mode faults

As UML uses an alternative signal stack we cannot use
the current stack pointer for stack dumping if UML itself
dies by SIGSEGV. To bypass this issue we save regs taken
from mcontext in our segv handler into thread_struct and
use these regs to obtain the stack pointer in show_stack().

Signed-off-by: Richard Weinberger <richard@nod.at>

Linux Kernel Source Tree.

RSS Atom

arch/um/include/asm/processor-generic.h		diff \| blob \| history
arch/um/include/shared/os.h		diff \| blob \| history
arch/um/kernel/sysrq.c		diff \| blob \| history
arch/um/kernel/trap.c		diff \| blob \| history
arch/um/os-Linux/signal.c		diff \| blob \| history