Date: Sat, 12 Jun 2004 12:08:52 +0200 From: Eirik Oeverby <ltning@anduin.net> To: current@freebsd.org Subject: Serial console - how to reboot? Message-ID: <40CAD634.8060808@anduin.net>
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Hi all, I have recently been getting the following messages on my console: swap_pager: indefinite wait buffer: device: #amrd/0x20001, blkno: 1072, size: 4096 swap_pager: indefinite wait buffer: device: #amrd/0x20001, blkno: 832, size: 4096 swap_pager: indefinite wait buffer: device: #amrd/0x20001, blkno: 512, size: 4096 swap_pager: indefinite wait buffer: device: #amrd/0x20001, blkno: 576, size: 4096 swap_pager: indefinite wait buffer: device: #amrd/0x20001, blkno: 584, size: 4096 I am aware that this usually indicates a bad drive or something, but given that it's a RAID volume hanging on an AMI MegaRAID controller (SCSI), and none of the drives in the array are degraded, that can't really be the case. I'm suspecting a bug in the driver (though freebsd 4.10 should be stable, right?) or a faulty cable or such. What would mitigate the problem for now though would be to have a way to reboot the system. I'm about 1000 miles away from the box, so I can't go there, but I do have access via serial console (which is where I'm getting these messages). I'm using minicom, but could use any other serial comms package on FreeBSD. Not sure if C-A-D would help, but as I don't know how to push that keycombo through minicom anyway, I'm kinda stuck. The box is replying to pings but no other services are available. The console is also 'dead', i.e. i can't get any command prompts or login prompt. Only these messages who keep showing up, about 1 per second. Entering the kernel debugger might help, though I'm actually not sure if it's compiled into the running kernel. But if it is, how can I get to it via serial? Anyone? Thanks, /Eirik
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