Date: Sat, 22 Jul 2000 08:13:45 -0500 (EST) From: Chris Hardie <chris@summersault.com> To: Greg Lehey <grog@lemis.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: mysterious ffs_clusteralloc kernel panics: need help! Message-ID: <Pine.BSF.4.21.0007220808510.590-100000@summersault.com> In-Reply-To: <20000721091234.G936@wantadilla.lemis.com>
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Sorry about that. Here's the output of a backtrace from a kernel compiled
with debugging turned on:
(kgdb) bt
#0 0xc0163a5b in boot ()
#1 0xc0163ce0 in at_shutdown ()
#2 0xc015f9e0 in lockmgr ()
#3 0xc0185a7c in vop_stdlock ()
#4 0xc020c2d1 in ufs_vnoperate ()
#5 0xc018e8c7 in vn_lock ()
#6 0xc018840b in vget ()
#7 0xc0208c93 in qsync ()
#8 0xc0203a6d in ffs_sync ()
#9 0xc018a447 in sync ()
#10 0xc01638a1 in boot ()
#11 0xc0163ce0 in at_shutdown ()
#12 0xc01ff060 in ffs_clusteralloc ()
#13 0xc01fe2de in ffs_hashalloc ()
#14 0xc01fdc60 in ffs_reallocblks ()
#15 0xc01850e3 in cluster_write ()
#16 0xc0204b73 in ffs_write ()
#17 0xc018e4da in vn_write ()
#18 0xc016e9d2 in dofilewrite ()
#19 0xc016e8db in write ()
#20 0xc023a667 in syscall ()
#21 0xc022d1ac in Xint0x80_syscall ()
#22 0x8048817 in ?? ()
#23 0x80482ee in ?? ()
#24 0x80480e9 in ?? ()
I'm afraid it doesn't look much different than the one I previously sent,
so I suspect perhaps I'm doing something wrong. I'm a little out of my
league here. I'll attempt to recompile and install the kernel from
scratch with debugging on, and then let you know what happens when it
crashes next Wednesday or Thursday (crashed this morning at 3:30, right on
"schedule", grrr).
Chris
On Fri, 21 Jul 2000, Greg Lehey wrote:
> >> OK, now do a backtrace ('bt').
> >
>
> You need the kernel with debugging symbols, which you appear to have.
> But this isn't the one. Take a look at
> http://www.lemis.com/vinum/how-to-debug.html for further details.
>
> Greg
-- Chris Hardie -----------------------------
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