From owner-freebsd-current Wed Nov 25 05:13:08 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id FAA03046 for freebsd-current-outgoing; Wed, 25 Nov 1998 05:13:08 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from shadow.worldbank.org (shadow.worldbank.org [138.220.104.78]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id FAA03040 for ; Wed, 25 Nov 1998 05:13:05 -0800 (PST) (envelope-from adhir@worldbank.org) Received: from localhost (adhir@localhost) by shadow.worldbank.org (8.9.1/8.9.1) with ESMTP id HAA15328; Wed, 25 Nov 1998 07:59:41 -0500 (EST) (envelope-from adhir@worldbank.org) X-Authentication-Warning: shadow.worldbank.org: adhir owned process doing -bs Date: Wed, 25 Nov 1998 07:59:41 -0500 (EST) From: "Alok K. Dhir" To: Steve Kargl cc: dg@root.com, grog@lemis.com, romanp@wuppy.rcs.ru, kpielorz@tdx.co.uk, current@FreeBSD.ORG Subject: Re: Random craches under heavy(?) disk activity In-Reply-To: <74A981D02E8D95E0852566C7000C14BE.000A4B1E852566C7@worldbank.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I'm seeing the same thing also on a kernel as of 11/24. I set "sysctl -w vfs.ffs.doreallocblks=0" and so far its stable. On Tue, 24 Nov 1998, Steve Kargl wrote: > > According to David Greenman: > > > > Guys, would you please look at the file sys/kern/vfs_cluster.c and > verify > > that you have rev 1.74? > > > > rm -rf /usr/sys > cvsup at 981124.1614 pst > > It crashes. I have an ELF kernel with debugging symbols. > I can not get a dump. If I issue 'panic' at the db> prompt > the system locks up tight. No keyboard, no disk activity, > nothing. All I have is a stack trace: > > dev=0x20404, bno = 34, bsize = 8192, size = 8192, fs = /var > panic: ffs_blkfree: bad size > mp_lock = 00000001; cpuid = 0; lapic.id = 01000000 > Debugger("panic") > Stopped at _Debugger+0x35: movb $0, _in_Debugger.98 > db> trace > _Debugger() at _Debugger+0x35 > _panic() at _panic+0x9f > _ffs_blkfree() at _ffs_blkfree+0xc2 > _ffs_reallocblks() at _ffs_reallocblks+0x420 > _cluster_write() at _cluster_write+0x15f > _ffs_write() at _ffs_write+0x56f > _vn_write() at _vn_write+0xef > _write() at _write+0xba > _syscall() at _syscall+0x187 > _Xint0x80_syscall() at _Xint0x80_syscall+0x4c > > If someone can clue me in on getting a crash dump, I'll > give Kirk access to my machines to debug this. I have > dumpdev=/dev/da1s1b in my rc.conf, and da1s1b is nearly > 700MB in size. > > -- > Steve > > finger kargl@troutmask.apl.washington.edu > http://troutmask.apl.washington.edu/~clesceri/kargl.html > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > -------------------------------------------------------------------- \||/_ Alok K. Dhir Phone: +1.202.473.2446 oo \ S11-151, ISGMC Email: adhir@worldbank.org L_ The World Bank Group Washington, DC \/ ------------------------------------------------------------------------| "Unix _is_ user friendly - it just chooses friends selectively..." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message