panic "bundirty" in FreeBSD 7 April snapshot

[Georg-W. Koltermann]

Hi,

I recently saw a FreeBSD panic 'bundirty' when playing with zfs.  I was
using the April FBSD7 ZFS snapshot.

pjd@ thinks this is a UFS related panic.

Just FYI.

--
Regards,
Georg.

-------- Weitergeleitete Nachricht --------
> Von: Pawel Jakub Dawidek <pjd at FreeBSD.org>
> An: Georg-W. Koltermann <gwk.rko at googlemail.com>
> Betreff: Re: [zfs-discuss] Re: zfs performance on fuse (Linux)
> compared to other fs
> Datum: Tue, 24 Apr 2007 21:46:17 +0200
> 
> On Tue, Apr 24, 2007 at 09:10:10PM +0200, Georg-W. Koltermann wrote:
> > Am Dienstag, den 24.04.2007, 12:03 +0200 schrieb Pawel Jakub Dawidek:
> > > On Mon, Apr 23, 2007 at 11:42:41PM -0700, Georg-W. Koltermann wrote:
> > > > > > So, at this point in time that seems pretty
> > > > > discouraging for an everyday user, on Linux.
> > > > > 
> > > > > nobody told, that zfs-fuse is ready for an everyday
> > > > > user at it`s current state ! ;)
> > > > 
> > > > That's what I found out, wanted to share and get other's opinion on.
> > > > 
> > > > I did not complain.  I thought it might work, it might not, so I tried.
> > > > 
> > > > BTW last night I tried ZFS on FreeBSD 7.  I got a panic when trying to make it
> > > > import my existing pool at first.  [...]
> > > 
> > > Can I see the panic message and backtrace?
> > 
> > Hi Pawel,
> > 
> > I did not get a panic during 'zpool import' any more today, but 'zpool
> > export' paniced at me:
> > 
> >         g_vfs_done(): da0s5d [WRITE(offset=963559124,length=16384)] error=5
> >         panic: bundirty: buffer 0xd919a39c still on queue 1
> >         cpuid 0
> >         KDB: enter: panic
> >         [thread pid 3 tid 100001]
> >         stopped at kdb_enter+0x2b: nop
> >         
> >         bt
> >         
> >         tracing pid 3 tid 100001 td 0xc5105d80
> >         kdb_enter(c09494ad) at kdb_enter +0x2b
> >         panic(c0952b99,d919a39c,1,d919a39c,e3ca1c48)
> >         bundirty(d919a39c) at brelse +0x82f
> >         bufdone_finish(d919a39c) at bufdone_finish +0x34c
> >         bufdone
> >         ffs_backgroundwritedone
> >         bufdone
> >         g_vfs_done(c56abe70) at g_vfs_done +0x8a
> >         biodone
> >         g_io_schedule_up
> >         
> > (copied by hand, may contain errors). da0s5d is /var.
> > 
> > Some log files are attached.  They contain USB disk errors and some
> > LORs.
> 
> This panic has nothing to do with ZFS, actually, but with UFS. You may
> want to send it to freebsd-fs@
> 
> BTW. ZFS is now integrated with FreeBSD's namecache, so you may want to
> repeat your find(1) test:)
> 
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