Date: Tue, 10 Aug 2004 21:40:22 +0200 From: "Terrence Koeman" <root@mediamonks.net> To: "'John Baldwin'" <jhb@FreeBSD.org>, <freebsd-current@FreeBSD.org> Subject: RE: Lock order reversal in 5.2-CURRENT Message-ID: <200408102141323.SM01804@manrikigusari> In-Reply-To: <200408101535.11863.jhb@FreeBSD.org>
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This is a multi-part message in MIME format. ------=_NextPart_000_0047_01C47F22.A36B9990 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit > -----Original Message----- > From: John Baldwin [mailto:jhb@FreeBSD.org] > Sent: Tuesday, August 10, 2004 21:35 > To: freebsd-current@FreeBSD.org > Cc: Colin Percival; root@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. 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