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Date:      Wed, 19 Aug 1998 15:03:40 +0200 (CEST)
From:      Søren Schmidt <sos@FreeBSD.ORG>
To:        regnauld@deepo.prosa.dk (Philippe Regnauld)
Cc:        croot@btp1da.phy.uni-bayreuth.de, current@FreeBSD.ORG, smp@FreeBSD.ORG
Subject:   Re: softupdates and smp crash
Message-ID:  <199808191303.PAA10187@sos.freebsd.dk>
In-Reply-To: <19980818161335.30289@deepo.prosa.dk> from Philippe Regnauld at "Aug 18, 98 04:13:35 pm"

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In reply to Philippe Regnauld who wrote:
> 	#0  boot (howto=260) at ../../kern/kern_shutdown.c:286
> 	#1  0xf01151c1 in panic (fmt=0xf01ab861 "softdep_lock: locking against myself")
>     at ../../kern/kern_shutdown.c:429
> 	#2  0xf01ab8c9 in acquire_lock (lk=0xf02265ac)
> 		at ../../ufs/ffs/ffs_softdep.c:263
> +->	#3  0xf01aee54 in initiate_write_filepage (pagedep=0xf0c49e00, bp=0xf35300b0)
> |		at ../../ufs/ffs/ffs_softdep.c:2745
> |	#4  0xf01aecbf in softdep_disk_io_initiation (bp=0xf35300b0)
> |
> I crashed here.


I tried it on my play-smp machine it panics also...
We can still say for sure that softupdates are NOT SMP safe...

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Søren Schmidt               (sos@FreeBSD.org)               FreeBSD Core Team
                Even more code to hack -- will it ever end?
..

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