Date: Wed, 1 Feb 2006 12:54:56 -0500 From: Andrew Gallatin <gallatin@cs.duke.edu> To: Steve Kargl <sgk@troutmask.apl.washington.edu> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, Pawel Jakub Dawidek <pjd@FreeBSD.org>, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern kern_malloc.c src/share/man/man9 Makefile redzone.9 src/sys/vm redzone.c redzone.h src/sys/conf NOTES files options Message-ID: <20060201125456.A68851@grasshopper.cs.duke.edu> In-Reply-To: <20060201171754.GA67925@troutmask.apl.washington.edu>; from sgk@troutmask.apl.washington.edu on Wed, Feb 01, 2006 at 09:17:54AM -0800 References: <200601311109.k0VB9MRq025366@repoman.freebsd.org> <20060201104752.A68774@grasshopper.cs.duke.edu> <20060201160923.GA67621@troutmask.apl.washington.edu> <17376.58731.618704.264566@grasshopper.cs.duke.edu> <20060201171754.GA67925@troutmask.apl.washington.edu>
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Steve Kargl [sgk@troutmask.apl.washington.edu] wrote: > On Wed, Feb 01, 2006 at 11:44:27AM -0500, Andrew Gallatin wrote: > > > > Steve Kargl writes: > > > On Wed, Feb 01, 2006 at 10:47:52AM -0500, Andrew Gallatin wrote: > > > > WARNING: WITNESS option enabled, expect reduced performance. > > > > Memory modified after free 0xffffff0000006d00(248) val=5 @ 0xffffff0000006dd0 > > > > kernel trap 9 with interrupts disabled > > > > > > You can trigger this panic without the red zone stuff. > > > See my string of post from yesterday. Something went > > > > Your panic looks like the same panic as mine, but with memguard rather > > than redzone. These systems do similar things, I suppose it is only > > natural that they'd be hit by the same bug. > > You get it without memguard, too. Kris suggested that I try memguard > to capture the problem. Unfortunately, memguard actually made > matters worse in that I did not even make it to single user mode > before a panic. Odd. I do not get it without using either memguard or redzone. I have a (mostly generic) kernel with WITNESS & INVARIANTS that boots fine. Maybe we should move this to -current or -amd64, as it does not seem to be directly related to this commit.. Drew
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