Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 17 Sep 1998 17:36:51 +0100
From:      Ben Smithurst <ben@scientia.demon.co.uk>
To:        Mike Smith <mike@smith.net.au>
Cc:        FreeBSD Current <freebsd-current@FreeBSD.ORG>
Subject:   Re: system hangs with soft updates
Message-ID:  <19980917173651.A567@scientia.demon.co.uk>
In-Reply-To: <199809170008.RAA00894@dingo.cdrom.com>
References:  <19980916230821.A282@scientia.demon.co.uk> <199809170008.RAA00894@dingo.cdrom.com>

next in thread | previous in thread | raw e-mail | index | archive | help
Mike Smith wrote:

> > _wdstart(ctrlr=1) at _wdstart+0x4af [../../i386/isa/wd.c:332]
> 
> This is where you were when the interrupt occurred.  Unfortunately the 
> line number above is wrong; wdstart() begins around line 900.

I've repeated it, and it definitely says 332, so don't blame me for that
one <g>

> Did you see any "dummy wdunwedge" messages before you dropped into DDB, 
> or any other messages at all?  

No, I'm pretty sure I didn't see anything like that.

> If you can reproduce the situation again, it would be useful if you 
> could drop into DDB, copy the trace output, then use 'c' to continue 
> and repeat the process a couple of times.  This would clarify whether 
> you're stuck in the IDE driver, or whether you just happened to catch
> it there on a chance.

When I press c, nothing happens. I have to ctrl-alt-esc to get back into
the debugger.

A few other lines which may be relevant, everything else was pretty much
the same as last time:

_worklist_insert(head=f1a049a0,item=f0fa0280) at _worklist_insert+0x10 [../../ufs/ffs/ffs_softdep.c:402]
_softdep_disk_write_complete(bp=f1a049a0) at _softdep_disk_write_complete+0x29d [../../ufs/ffs/ffs_softdep.c:3012]
_biodone(bp=f1a049a0) at _biodone+0xab [../../kern/vfs_bio.c:1915]

The disk light did actually go off after a while, but it came on again
as soon as I typed (c)ontinue, so it's stuck somewhere.

-- 
Ben Smithurst : ben@scientia.demon.co.uk : http://www.scientia.demon.co.uk/

PGP: 0x99392F7D - 3D 89 87 42 CE CA 93 4C  68 32 0E D5 36 05 3D 16
     http://www.scientia.demon.co.uk/ben/pgp-key.html (or use keyservers)

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-current" in the body of the message



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19980917173651.A567>