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Date:      Wed, 19 Aug 1998 15:39:47 +0200 (MEST)
From:      Werner Griessl <croot@btp1da.phy.uni-bayreuth.de>
To:        "S\xren Schmidt" <sos@FreeBSD.ORG>
Cc:        smp@FreeBSD.ORG, current@FreeBSD.ORG, (Philippe Regnauld) <regnauld@deepo.prosa.dk>
Subject:   Re: softupdates and smp crash
Message-ID:  <XFMail.980819153947.croot@btp1da.phy.uni-bayreuth.de>
In-Reply-To: <199808191303.PAA10187@sos.freebsd.dk>

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On 19-Aug-98 S\xren Schmidt wrote:
> 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 Cor
----------------------------------
E-Mail: Werner Griessl <croot@btp1da.phy.uni-bayreuth.de>
Date: 19-Aug-98
Time: 15:37:25

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But with current from today (Aug. 19) i cannot reproduce the crash.
Tried 3 times buildworld -j4 with softupdats enabled without problems.
Werner


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