Lock order reversal in 5.2-CURRENT

[Terrence Koeman]

> -----Original Message-----
> From: John Baldwin [mailto:jhb at FreeBSD.org] 
> Sent: Tuesday, August 10, 2004 21:35
> To: freebsd-current at FreeBSD.org
> Cc: Colin Percival; root at mediamonks.net
> Subject: Re: Lock order reversal in 5.2-CURRENT
> 
> On Tuesday 10 August 2004 02:45 pm, Colin Percival wrote:
> > At 11:29 10/08/2004, Terrence Koeman wrote:
> > >lock order reversal
> > > 1st 0xc0645aa0 sched lock (sched lock) @
> > > /usr/src/sys/vm/vm_zeroidle.c:156 2nd 0xc06748c0 sio (sio) @
> > > /usr/src/sys/dev/sio/sio.c:3039
> > >
> > >This LOR is not on 
> http://sources.zabbadoz.net/freebsd/lor.html, so I'm
> > >guessing this one locked up my system.
> >
> > This is LOR #013 on bzeeb's list.  There isn't any solution 
> yet, but there
> > is a simple workaround: unplug the serial console.
> 
> The real problem is that mi_switch panic'd:
> 
> calltrap() at calltrap+0x5
> --- trap 0xc, eip = 0xc04b3ed2, esp = 0xd4dd7c90, ebp = 0xd4dd7ce0 ---
> mi_switch(1,0,c060d2be,9c,dbba0) at mi_switch+0x102
> 
> Does the original poster have a debug kernel built?
> 

Yes I have, but I have no experience with the debugger. I'll be happy to
carry out whatever's needed.

-- 
Regards,
Terrence Koeman
 
MediaMonks B.V. (www.mediamonks.com)
Please quote all replies in correspondence.     
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