Date: Mon, 15 Nov 2004 11:10:56 -0800 From: Marcel Moolenaar <marcel@xcllnt.net> To: Ruslan Ermilov <ru@freebsd.org> Cc: alpha@freebsd.org Subject: Re: Removing VGA card panics the box on boot Message-ID: <20041115191056.GA82702@ns1.xcllnt.net> In-Reply-To: <20041115081659.GA30262@ip.net.ua> References: <20041115081659.GA30262@ip.net.ua>
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On Mon, Nov 15, 2004 at 10:16:59AM +0200, 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? Typically only syscons cares about having a VGA adapter. I don't see if you have syscons configured or not, but assume you have. I also don't see it mentioned wether you normally use a serial console or a graphical console. So, it's hard to come up with any good hints. My first guess would be: remove syscons (or remove the hint from /boot/device.hints. Make sure you have a suitable alternative for the console. I forgot if promcons could survive multi-user mode, so you may want to have sio(4) or uart(4) lined up as the console. -- Marcel Moolenaar USPA: A-39004 marcel@xcllnt.net
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