Date: Tue, 24 Nov 1998 18:15:49 -0800 (PST) From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: dg@root.com Cc: grog@lemis.com, romanp@wuppy.rcs.ru, kpielorz@tdx.co.uk, current@FreeBSD.ORG Subject: Re: Random craches under heavy(?) disk activity Message-ID: <199811250215.SAA00353@troutmask.apl.washington.edu> In-Reply-To: <199811250118.RAA25566@root.com> from David Greenman at "Nov 24, 1998 5:18:16 pm"
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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
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