Date: Sun, 28 Nov 2010 15:01:47 GMT From: cperciva@FreeBSD.org To: cperciva@FreeBSD.org, freebsd-net@FreeBSD.org, freebsd-xen@FreeBSD.org Subject: Re: kern/148780: [panic] mtx_lock() of spin mutex (null) @ /usr/src/sys/net/netisr.c:830 Message-ID: <201011281501.oASF1lsC071996@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
Synopsis: [panic] mtx_lock() of spin mutex (null) @ /usr/src/sys/net/netisr.c:830 Responsible-Changed-From-To: freebsd-net->freebsd-xen Responsible-Changed-By: cperciva Responsible-Changed-When: Sun Nov 28 14:59:04 UTC 2010 Responsible-Changed-Why: This is actually a FreeBSD/Xen bug. Somehow the pcpu data is being mangled in the presence of VM pressure; the panic shows up in netisr because netisr looks up a per-cpu data structure (and locks it, hence the locking assertion). http://www.freebsd.org/cgi/query-pr.cgi?pr=148780
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201011281501.oASF1lsC071996>