Date: 03 May 2003 11:44:47 -0400 From: Joe Marcus Clarke <marcus@marcuscom.com> To: Don Lewis <truckman@freebsd.org> Cc: current@freebsd.org Subject: Re: More on the blkfree panic Message-ID: <1051976687.52870.5.camel@shumai.marcuscom.com> In-Reply-To: <200305030942.h439grM7017158@gw.catspoiler.org> References: <200305030942.h439grM7017158@gw.catspoiler.org>
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--=-nYZrQQ4bYAtT+DFaY9gw Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Sat, 2003-05-03 at 05:42, Don Lewis wrote: > On 2 May, I wrote: > > On 2 May, Scott A. Moberly wrote: > >> On Fri, May 02, 2003 at 01:43:34PM -0700, Don Lewis wrote: > >>> I haven't seen it on my 4/26 machine, though I haven't done anything > >>> disc intensive (other than the daily cron jobs) since then. The repor= ts > >>> of this problem started showing up on 4/27, so I went hunting for > >>> commits during the likely window using cvs diff. There were a number= of > >>> vm locking changes made during that time, including some changes to > >>> vfs_bio.c. That's about as close as anything came to touching the > >>> filesystem code. > >>=20 > >> Just to give a definate start point: > >>=20 > >> /Makefile.inc1/1.349/Fri May 2 18:26:15 2003//D2003.04.26.05.00.00 > >>=20 > >> works fine. > >=20 > > Mine is somewhat newer than that, about 2003.04.27.02.00.00 UTC. I jus= t > > ran a buildworld and unpacked ports.tgz and didn't run into any > > problems. I'll try stepping forward about 12 hours ... >=20 > Interesting ... I'm having problems reproducing this problem. >=20 > The first report of this bug landed in my inbox at about 15:12 UTC on > April 27. Someone else who reported the bug claimed to have cvsup'ed at > about 10:00 UTC on that day. >=20 > I just did > cvs -R update -Pd -D'4/27/2003 14:00:00 UTC' > make buildworld > make buildkernel > make installkernel > and rebooted. >=20 > I haven't managed to trigger the problem with a simultaneous buildworld > and untaring ports.tgz. I even suspected that this problem might be > triggered by free memory pressure so I added > hw.physmem=3D"128M" > to /boot/loader.conf and rebooted. I've pushed the machine heavily into > paging, but it still seems to be stable, but painfully sluggish. I was also able to reproduce this, though not as reliably as my localhost NFS mount trick, by doing a make extract in x11/XFree86-4-libraries. This was on a lightly loaded P4 with 1 GB of RAM and UFS1 file systems. Joe --=20 PGP Key : http://www.marcuscom.com/pgp.asc --=-nYZrQQ4bYAtT+DFaY9gw Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (FreeBSD) iD4DBQA+s+Pvb2iPiv4Uz4cRAmnUAJd48mYKDViCFSHuxo2yB8bGuYl6AJ9jk6Q1 HdHsCg7Ip5DWINS7teuJ+w== =s9L8 -----END PGP SIGNATURE----- --=-nYZrQQ4bYAtT+DFaY9gw--
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