Messages in this thread | | | Date | Wed, 20 Feb 2008 10:21:51 +1100 | From | Paul Mackerras <> | Subject | Re: [PATCH 1/5] signal(x86_32): Improve the signal stack overflow check |
| |
Ingo Molnar writes: > > * Shi Weihua <shiwh@cn.fujitsu.com> wrote: > > > We need to check for stack overflow only when the signal is on stack. > > So we can improve the patch "http://lkml.org/lkml/2007/11/27/101" as > > following. > > thanks, applied.
These patches change the behaviour of programs that longjmp out of a signal handler on an alternate stack, don't they?
I'm interested to know what gave you confidence that changing that behaviour won't break existing working programs.
Paul.
| |