Date: Sun, 13 Sep 1998 11:09:02 -0700 From: Mike Smith <mike@smith.net.au> To: "Kenneth D. Merry" <ken@plutotech.com> Cc: Jos.Backus@nl.origin-it.com (Jos Backus), hardware@FreeBSD.ORG Subject: Re: Buslogic/Mylex HAs Message-ID: <199809131809.LAA06566@word.smith.net.au> In-Reply-To: Your message of "Sun, 13 Sep 1998 11:36:21 MDT." <199809131736.LAA05042@panzer.plutotech.com>
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> I've seen panics on -stable and -current with cdda2wav; they seem to be > related to shared memory usage. It'll probably take someone more familiar > with the VM system to sort them out, though. The problem doesn't seem to > be directly attributable to CAM, but it my be exacerbated by CAM. > > It looks like cdrecord uses shared memory as well, so the panic may be > similar. Can you send me a stack trace? Just out of curiosity, does the CAM stack use a lazy mechanism for cleaning up after transfers? It sounds very much like what's happening here is that the process has been doing I/O to the shared memory segment, finishes and attempts to delete the segment, but parts of it are still marked busy. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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