Date: Wed, 10 Sep 2008 16:24:17 GMT From: gavin@FreeBSD.org To: alexey@zhtw.org.ru, gavin@FreeBSD.org, freebsd-alpha@FreeBSD.org Subject: Re: alpha/127248: System crashes when many (7) serial port terminals (vt320-vt510) connected to the server via com to usb adapter and 2-usb hubs. Message-ID: <200809101624.m8AGOHdS047064@freefall.freebsd.org>
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Synopsis: System crashes when many (7) serial port terminals (vt320-vt510) connected to the server via com to usb adapter and 2-usb hubs. State-Changed-From-To: open->feedback State-Changed-By: gavin State-Changed-When: Wed Sep 10 16:17:30 UTC 2008 State-Changed-Why: To submitter: Are you able to compile the debugger into the kernel and obtain a backtrace next time it panics? Add the following to your kernel config file: options KDB options DDB options GDB Then when the machine crashes next, enter "bt" at the prompt? (Disclaimer: I've never used FreeBSD/alpha before, but this should work) By the way, my gut instinct is that this panic is caused by the fact the serial dongles seem to be disconnecting/reconnecting, and not specifically because the machine is an Alpha. However, why they are disconnecting in the first place, I don't know. http://www.freebsd.org/cgi/query-pr.cgi?pr=127248
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