Date: Sun, 11 Apr 1999 08:53:49 +0100 From: Karl Pielorz <kpielorz@tdx.co.uk> To: "Kenneth D. Merry" <ken@plutotech.com> Cc: freebsd-scsi@FreeBSD.ORG Subject: Re: Strange SCSI panic - devstat_end_transaction Message-ID: <3710550D.3885BAF4@tdx.co.uk> References: <199904110216.UAA34825@panzer.plutotech.com>
next in thread | previous in thread | raw e-mail | index | archive | help
"Kenneth D. Merry" wrote: > The devstat warning is just a symptom of the problem, and not the real > cause of the problem. It basically indicates that one of a couple of > things have happened: > > - a transaction has been completed twice > - the buffer queue has been corrupted somehow (Justin said that duplicate > buffers might do it) and we ended up getting more transaction > completions than transaction starts. > > The devstat message is informational, and won't cause any system problems, > but it does indicate some other problem. > > > devstat_end_transaction: HELP!! busy_count for da2 is < 0 (-1)! > > panic: vwakeup: neg numoutput > > mp_lock = 01000001; cpuid = 1; lapic.id = 01000000 > > boot() called on cpu#1 > > I'm not sure what the problem is, and I haven't seen this one recently. > Have you ever had the problem before? No, never... :-( > Can you reproduce it? i.e., if you newfs the Vinum volume again, does it > happen again? No, I've successfully newfs'd the Vinum volume a number of times since... Thanks for the info above!, If it happens again, I'll try again to get a dump, and get back to you... (I guess I'm hoping it doesn't happen again - though it would be nice to figure out what happened :) Regards, Karl To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3710550D.3885BAF4>