Date: Tue, 18 Apr 2000 17:14:31 -0600 From: Warner Losh <imp@village.org> To: Peter Radcliffe <pir@pir.net> Cc: freebsd-mobile@FreeBSD.ORG Subject: Re: pcmcia remove hang under 4.0-stable Message-ID: <200004182314.RAA95762@harmony.village.org> In-Reply-To: Your message of "Tue, 18 Apr 2000 18:43:25 EDT." <20000418184325.K4533@pir.net> References: <20000418184325.K4533@pir.net> <20000418180019.I4533@pir.net>
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In message <20000418184325.K4533@pir.net> Peter Radcliffe writes: : What I have managed to reproduce is a flashcard related crash. Me too. :-) : boot the machine : put my sandisk 48Mb compact flash in a pcmcia adaptor in : mdir f: : remove it : mount /dev/ad8s1 /dos/f : : Panic. I don't see the panic message, but I did manage to get two : corefiles saved. savecore says it's a page fault. Address 0x28? Here's how I reproduce it: insert card touch device somehow (fdisk, disklabel, etc) remove card insert card touch device with fdisk Boom. This happens less often when I ifdef out the disk_destroys in ad_detach. Still happens. : Clues or documentation pointers ? : (apart from http://www.freebsd.org/handbook/kerneldebug.html#AEN20431 : which I've already found and will read in detail later today, got to : go do stuff right now). You are on the right track. The problem is somehow related to dev coming and going. However, I've not had the time to trace down the exact reasons why it does this. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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