Date: Sun, 25 May 2003 23:16:19 +0200 From: Thierry Herbelot <thierry@herbelot.com> To: current ML <current@FreeBSD.ORG> Subject: Lock Order Reversal report Message-ID: <200305252316.19358.thierry@herbelot.com>
next in thread | raw e-mail | index | archive | help
Hello,
with a quite recent SMP -Current machine, I've seen a message reporting a LOR
(the sources have been cvsup'ed around 07h00 GMT yesterday).
in /var/log/messages :
May 25 18:09:38 machine kernel: lock order reversal
May 25 18:09:38 machine kernel: 1st 0xc409aa80 pcm0 (sound softc) @
/files3/src/sys/dev/sound/isa/mss.c:179
May 25 18:09:38 machine kernel: 2nd 0xc40aa200 pcm0:play:0 (pcm channel) @
/files3/src/sys/dev/sound/pcm/channel.c:440
idents of the incriminated files :
machine% ident /files3/src/sys/dev/sound/isa/mss.c
/files3/src/sys/dev/sound/isa/mss.c:
$FreeBSD: src/sys/dev/sound/isa/mss.c,v 1.84 2003/02/07 14:05:33 nyan Exp
$
machine% ident /files3/src/sys/dev/sound/pcm/channel.c
/files3/src/sys/dev/sound/pcm/channel.c:
$FreeBSD: src/sys/dev/sound/pcm/channel.c,v 1.88 2003/02/26 14:38:19
orion Exp $
machine% uname -a
FreeBSD machine 5.1-BETA FreeBSD 5.1-BETA #21: Sat May 24 16:28:28 CEST 2003
rot@machine:/files3/obj/files3/src/sys/SMP i386
The machine is a BP6, with no ACPI (the BIOS seems to be broken in this
regard) and the straight SMP kernel config file.
Happy hacking
TfH
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200305252316.19358.thierry>