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To: Chad David <davidc@acns.ab.ca>
Cc: freebsd-current@FreeBSD.ORG, brian@Awfulhak.org
Subject: Re: panic from May 
In-Reply-To: Message from Chad David <davidc@acns.ab.ca> 
   of "Sat, 16 Jun 2001 15:22:39 MDT." <20010616152239.A4458@colnta.acns.ab.ca> 
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Date: Tue, 19 Jun 2001 03:54:46 +0100
From: Brian Somers <brian@Awfulhak.org>
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A current world with a May 23 kernel works ok, so you may be lucky :)

> I get the following panic on a GENERIC kernel from around May 23:
> 
> (copied by hand)
> 
> /usr/src/sys/kern/kern_synch.c:385: sleeping with "vm" locked from /usr/src/sys/vm/vm_pager.c:428
> panic: sleeping process owns a mutext
> Debugger("panic")
> Stopped at  Debugger+0x44: pushl %ebx
> db> trace
> Debugger()
> panic() 
> propagate_priority()
> _mtx_lock_sleep()
> obreak()
> syscall()
> syscall_with_err_pushd()
> 
> this looks a lot like...
> 
> my system cvsupped around May 25 reliably causes a panic when I
> 
> $ cp /cdrom/distfiles/somefiles /tmp
> 
> I've written down the message from the debugger:
> 
> /usr/src/sys/kern_synch.c:385: sleeping with "vm" locked
> from /usr/src/sys/vm/vm_pager.c: 428
> panic: sleeping process owns a mutex
> Debugger("panic")
> >trace
> Debugger(...)
> panic()
> propagate_priority()
> _mtx_lock_sleep()
> ffs_write()
> vn_write()
> writev()
> syscall()
> syscall_with_err_pushed()
> 
> .... from the current archives.
> 
> What can I do get this thing through a make world?
> Would a recent kernel over the existing userland have any hope
> between then and now?
> 
> Thanks.
> 
> Chad

-- 
Brian <brian@Awfulhak.org>                        <brian@[uk.]FreeBSD.org>
      <http://www.Awfulhak.org>                   <brian@[uk.]OpenBSD.org>
Don't _EVER_ lose your sense of humour !



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