Date: Sat, 15 Jan 2005 11:59:43 +0000 From: Xian <ian@codepad.net> To: freebsd-questions@freebsd.org Subject: Re: kernel panic on umass drive Message-ID: <200501151159.43196.ian@codepad.net> In-Reply-To: <200501151152.37942.ian@codepad.net> References: <200501151152.37942.ian@codepad.net>
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On Saturday 15 January 2005 11:52, Xian wrote: > I have small USB flash drive that has worked quite well up until now with > FreeBSD. I've found I have to boot with it plugged in as when I don't will > give a line in dmesg: > > umass0: Generic USB Flash Disk, rev 1.10/1.00, addr 5 > > but it only give the lines Sorry, I meant it only gives the following when it is plugged in on boot > > umass0: Generic USB Flash Disk, rev 1.10/1.00, addr 5 > da0 at umass-sim0 bus 0 target 0 lun 0 > da0: <Generic USB Flash Disk 1.00> Removable Direct Access SCSI-0 device > da0: 1.000MB/s transfers > da0: 31MB (63904 512 byte sectors: 64H 32S/T 31C) > > I found that when I didn't have the da0 lines (It wasn't in the machine on > boot) and I pulled the drive out it the kernel panicked about a page fault. > The instruction pointer was 0xc0489e5b, and current process was 31 (irq21: > uhci0 uhci1*). > > [ian@hercules:~] %nm -n /boot/kernel/kernel | grep c0489e5 > c0489e50 t uhci_check_intr > [ian@hercules:~] %uname -a > FreeBSD hercules.codepad.net 5.3-RELEASE-p4 FreeBSD 5.3-RELEASE-p4 #6: Fri > Jan 14 23:59:29 GMT 2005 > root@hercules.codepad.net:/usr/obj/usr/src/sys/HERCULES i386 > > Also a yesterday I compiled in "device ehci" and the kernel panicked on > boot when just after it had detected umass when the drive was plugged in. > So I compiled it out again. > > I have had other USB Flash drives work properly on earlier version(s) of > either 5.2.1R or 5.3R, I can't remember. > > I'm not sure how to get round this, or who this information would help. Any > help will be very much appreciated, or who to send this info to. -- /Xian "INDECISION is the key to FLEXIBILITY" unknown author
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