Date: Mon, 15 Nov 2004 22:36:13 +0200 From: Ruslan Ermilov <ru@freebsd.org> To: Wilko Bulte <wb@freebie.xs4all.nl> Cc: alpha@freebsd.org Subject: Re: Removing VGA card panics the box on boot Message-ID: <20041115203613.GB71810@ip.net.ua> In-Reply-To: <20041115202950.GB59855@freebie.xs4all.nl> References: <20041115081659.GA30262@ip.net.ua> <200411151112.49535.jhb@FreeBSD.org> <20041115185514.GA65300@ip.net.ua> <20041115202950.GB59855@freebie.xs4all.nl>
index | next in thread | previous in thread | raw e-mail
[-- Attachment #1 --] On Mon, Nov 15, 2004 at 09:29:50PM +0100, Wilko Bulte wrote: > On Mon, Nov 15, 2004 at 08:55:14PM +0200, Ruslan Ermilov wrote.. > > On Mon, Nov 15, 2004 at 11:12:49AM -0500, John Baldwin wrote: > > > On Monday 15 November 2004 03:16 am, Ruslan Ermilov wrote: > > > > Hi there, > > > > > > > > I needed the unused PCI VGA card for testing another machine, > > > > so I pulled it out from my AlphaPC 164SX, and that gave me an > > > > > > > > instant panic on boot: > > > > : Timecounter "i8254" frequency 1193182 Hz quality 0 > > > > : Timecounter "alpha" frequency 533183689 Hz quality 800 > > > > : Timecounters tick every 0.976 msec > > > > : panic: mtx_lock() of spin mutex (null) @ /usr/src/sys/netinet/igmp.c:431 > > > > : cpuid = 0 > > > > : KDB: enter: panic > > > > : [thread 100004] > > > > : Stopped at kdb_enter+0x48: or zero,zero,zero <zero=0x0> > > > > : db> > > > > > > > > Putting it back in results in normal behavior (no panic). > > > > Any hints? > > > > > > Sounds like something is messing with free'd memory through a stale pointer > > > and happens to be trashing that spin mutex as a result. Not sure on how to > > > track it down however. > > > > > The funny thing is that it happens in exactly this same place, > > and only when I pull the VGA card out. ;) > > 5.3-<mumble> didn't do that to me for my DS10 when I took the VGA card > out. > > SRM setting CONSOLE=serial right? (should be but heh...) > No. The console is set to "graphics" in SRM. I'll play with this more tomorrow when I have physical access to hardware. Cheers, -- Ruslan Ermilov ru@FreeBSD.org FreeBSD committer [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQFBmRM9qRfpzJluFF4RArxLAJ9ymvGzxnZ+8UaNdyOIosmw//tpMwCdE+Zj 6QiHO/ZkjQCXgnceQSzXm+M= =U/Au -----END PGP SIGNATURE-----help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20041115203613.GB71810>