Date: Thu, 25 Feb 1999 16:08:35 -0700 From: Warner Losh <imp@harmony.village.org> To: Palle Girgensohn <girgen@partitur.se> Cc: freebsd-stable@FreeBSD.ORG, freebsd-current@FreeBSD.ORG Subject: Re: panic: aha0 Invalid CCB or SG list Message-ID: <199902252308.QAA04402@harmony.village.org> In-Reply-To: Your message of "Thu, 25 Feb 1999 03:08:18 %2B0100." <36D4B092.8B076D55@partitur.se> References: <36D4B092.8B076D55@partitur.se>
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In message <36D4B092.8B076D55@partitur.se> Palle Girgensohn writes: : I've seen three crashes in the last couple of weeks, with a server : box that's been running stable as a rock for two years, at least. It : has an adaptec 2940UW with six disks, and an adaptec 1542CP that's : connected to a seagate travan tape driver. OK. This card is known to be good. At least I've not had any problems with it. : It's running STABLE-3.1 from Feb 19 1999, and since the last : upgrade, I've seen three crashes, all related to dumping to : tape. Since I got no info on what happened, I decided to sit down : with the machine, run a backup sequence to tape, and wait for it to : possibly crash. After 90 minutes, I was about to give up when : suddenly, poof: : panic: aha0 Invalid CCB or SG list. : : So, it's probably the 1540 driver (or hardware)? Ah. OK. I'm not doing tape stuff on my machine. How fast is that seagate tr-4 that you are doing? : Can anybody shed some light on what to do? Is it software? That's my : guess, since the machine never ONCE has crashed until the upgrade to : 3.x. I had one crash when running current form beginning of January : (soon after moving to 3.x), and now theese three in a week. The 1540 : has been in the machine for about six months. Chances are really good that this is software. The invalid ccb or sg list is due to either a race condition or something taht corrupts these things. : If there's anything I can do to help debug I'll do it, but device : drivers are a little above my level of expertise. If you can wait a day or three, I might be able to find something that will help. However, I don't have a tape drive right now to test it with. I'll see what I can beg, borrow or steal. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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