Date: Wed, 29 Nov 2006 12:04:03 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: jb@freebsd.org, Rene Ladan <r.c.ladan@gmail.com> Subject: Re: calcru-triggered panic? Message-ID: <200611291204.03716.jhb@freebsd.org> In-Reply-To: <45622068.2050705@student.tue.nl> References: <45622068.2050705@student.tue.nl>
next in thread | previous in thread | raw e-mail | index | archive | help
On Monday 20 November 2006 16:38, Rene Ladan wrote: > Hi, > > I got the attached panic on CURRENT 2006-11-17. > > It was preceded by a lot of 'calcru' messages. The calcru messages you can ignore. This is the real problem: panic: blockable sleep lock (sleep mutex) tty @ /usr/src-current/sys/kern/kern_event.c:1670 This panic is due to the recent changes to printf to try to buffer the printf output. It now runs cnputc() under a critical section and syscons(4) tries to do a ttwakeup() which invokes KNOTE() and tries to lock a regular mutex while inside the critical section. I'm not sure how best to fix this. -- John Baldwin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200611291204.03716.jhb>