kernel panic on umass drive

From: Xian (ian_at_codepad.net)
Date: 01/15/05

  • Next message: Xian: "Re: gvinum start" 
    To: freebsd-questions@freebsd.org
Date: Sat, 15 Jan 2005 11:52:37 +0000

    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

    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
"Too many of us look upon Americans as dollar chasers. This is a cruel libel, 
even if it is reiterated thoughtlessly by the Americans themselves."
Albert Einstein
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  • Next message: Xian: "Re: gvinum start"

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