Date: Sat, 13 Jul 2002 13:45:41 -0700 From: Peter Wemm <peter@wemm.org> To: current@freebsd.org Subject: Re: HEADS UP, beware of pmap changes. Message-ID: <20020713204541.C9B113811@overcee.wemm.org> In-Reply-To: <20020713042840.52B9B3811@overcee.wemm.org>
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Peter Wemm wrote: > Peter Wemm wrote: > > This is mostly a FYI because I do not expect major problems this time. > > I have been extensively testing it in a handful of configurations. > > As murphy would dictate, something fishy is going on. In the last 12 hours > or so (I had a long sleep), I've started getting apparent memory corruption > - although it only seems visible to userland. The usual symptom is that > gas gets blocks of memory clobbered with 0xd0d0d0d0 (yes, the same fill > pattern used in phkmalloc). This is highly suspicious. I'll keep > everybody informed once I've narrowed down when it started breaking. My > test machines had one last cvs update/merge conflicts/compile/reboot before > commit. I hope I didn't fat-finger merging the conflicts or something > silly right before commit. I have only seen it happen occasionally on one > SMP box, the others appear OK. I have not seen problems show up on UP at > all. I believe I know what the problem is. I'll throw in a short term fix (yes, it only affects SMP boxes) and work on a real solution. Cheers, -Peter -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com "All of this is for nothing if we don't go to the stars" - JMS/B5 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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