Lock order reversal in 5.2-CURRENT
jhb at FreeBSD.org
Tue Aug 10 12:38:34 PDT 2004
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?
John Baldwin <jhb at FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve" = http://www.FreeBSD.org
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