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Re: [PATCH] Segfault while unwinding an invalid function pointer

From: Jakub Jelinek <jakub at redhat dot com>
To: Andi Kleen <andi at firstfloor dot org>
Cc: Andrew Haley <aph at redhat dot com>, Pete Eberlein <eberlein at linux dot vnet dot ibm dot com>, gcc-patches at gcc dot gnu dot org
Date: Thu, 31 Jan 2008 08:36:02 -0500
Subject: Re: [PATCH] Segfault while unwinding an invalid function pointer
References: <47A0F9FA.9000903@linux.vnet.ibm.com.suse.lists.egcs-patches> <p73r6fy46fh.fsf@bingen.suse.de> <20080131105359.GS30691@devserv.devel.redhat.com> <20080131113426.GC31090@one.firstfloor.org> <47A1B46A.8080507@redhat.com> <20080131135702.GA1582@one.firstfloor.org>
Reply-to: Jakub Jelinek <jakub at redhat dot com>

On Thu, Jan 31, 2008 at 02:57:02PM +0100, Andi Kleen wrote:
> > This seems to me like the cure is worse than the disease.
> 
> Then you should document somewhere that the unwinder is racy in this
> regard.

Only for broken programs which munmap code pages which are still in use by
some other thread.  Big deal.

	Jakub

Follow-Ups:
- Re: [PATCH] Segfault while unwinding an invalid function pointer
  - From: Daniel Jacobowitz

References:
- Re: [PATCH] Segfault while unwinding an invalid function pointer
  - From: Andi Kleen
- Re: [PATCH] Segfault while unwinding an invalid function pointer
  - From: Jakub Jelinek
- Re: [PATCH] Segfault while unwinding an invalid function pointer
  - From: Andi Kleen
- Re: [PATCH] Segfault while unwinding an invalid function pointer
  - From: Andrew Haley
- Re: [PATCH] Segfault while unwinding an invalid function pointer
  - From: Andi Kleen

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