Date: Tue, 23 Nov 2004 00:08:52 +0100 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: John Baldwin <jhb@FreeBSD.org> Cc: current@FreeBSD.org Subject: Re: panic: sleeping thread owns a non-sleepable lock Message-ID: <31187.1101164932@critter.freebsd.dk> In-Reply-To: Your message of "Mon, 22 Nov 2004 16:57:36 EST." <200411221657.36659.jhb@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
In message <200411221657.36659.jhb@FreeBSD.org>, John Baldwin writes: >On Monday 22 November 2004 09:38 am, Peter Holm wrote: >> During stress test with GENERIC HEAD from Nov 20 08:40 UTC I got: >> Sleeping on "fdesc" with the following non-sleepable locks held: >> exclusive sleep mutex fdesc r = 0 (0xc08d15a0) locked @ >> kern/kern_descrip.c:2425 and then >> panic: sleeping thread (pid 92279) owns a non-sleepable lock >> >> http://www.holm.cc/stress/log/cons89.html > >Yes, the panic is a result of the earlier warning. Poul-Henning touched this >code last, so it is probably something for him to look at. I'm unsure how >msleep() is getting called, however. The turnstile panic is not important, >can you find the thread that went to sleep (should be pid 92279) and get >stack trace for that? This one is a known trouble-spot but I don't know how to solve it. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?31187.1101164932>