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    SubjectRe: 2.4.17,2.4.18 ide-scsi+usb-storage+devfs Oops
    Sandino Araico writes:
    > Greg KH wrote:
    >
    > > On Thu, Feb 28, 2002 at 03:57:31PM -0600, Sandino Araico Sánchez wrote:
    > > > The Oops happens after I use the ide-scsi module with my CDRW and then I
    > > > plug the Zip USB in.
    > >
    > > Can you run the oops through ksymoops and send it to us?
    >
    > ksymoops output attached.
    > Invalid operand: 0000
    > CPU: 0
    > EIP: 0010: [<c01565f0>] Not tainted
    > Using defaults from ksymoops -t elf32-i386 -a i386
    > EFLAGS: 00010282
    > eax: 0000000d ebx: d010d8e0 ecx: dd384000 edx: 00000001
    > esi: cd0d1a14 edi: c49a7d60 ebp: bfffe4cc esp: c1b7bf18
    > ds: 0018 es: 0018 ss: 0018
    > Process rmmod (pid: 24039, stackpage=c1b76000)
    > Stack: c0244807 c02447ea c02447e0 d010d8e0 d010d8e0 c01575d8 d010d8e0 d010d2e0
    > d010d8e0 cd0d1a14 e090b362 d010d8e0 cd0d1a00 00000000 e0d5d3be cd0d1a14
    > 00000600 00000000 c49a7d60 d010dee0 e0d5ea80 c01c544a c49a7d60 e0d5c000
    > Call Trace: [<c01575d8>] [<e0d5d424>] [<e0d5d3be>] [<e0d5ea80>] [<c01c544a>] [<c01c555e>] [<e0d5ea80>] [<e0d5d424>] [<e0d5ea80>] [<c011980f>] [<c0118b12>]
    > [<c0106e23>]
    > Code: 0f 0b 83 c4 10 f0 ff 4b 04 0f 94 c0 84 c0 0f 84 93 00 00 00
    >
    > >>EIP; c01565f0 <devfs_put+30/dc> <=====
    > Trace; c01575d8 <devfs_unregister+30/38>
    > Trace; e0d5d424 <[usb-uhci]__module_license+9099/fcd5>
    > Trace; e0d5d3be <[usb-uhci]__module_license+9033/fcd5>
    > Trace; e0d5ea80 <[usb-uhci]__module_license+a6f5/fcd5>
    > Trace; c01c544a <scsi_unregister_device+52/d4>
    > Trace; c01c555e <scsi_unregister_module+36/3c>
    > Trace; e0d5ea80 <[usb-uhci]__module_license+a6f5/fcd5>
    > Trace; e0d5d424 <[usb-uhci]__module_license+9099/fcd5>
    > Trace; e0d5ea80 <[usb-uhci]__module_license+a6f5/fcd5>
    > Trace; c011980f <free_module+17/b4>
    > Trace; c0118b12 <sys_delete_module+126/234>
    > Trace; c0106e23 <system_call+33/38>

    I suspect the USB-UHCI driver is doing a double-unregister on a devfs
    entry. Please set CONFIG_DEVFS_DEBUG=y, recompile and boot the new
    kernel. Send the new Oops (passed through ksymoops, of course).

    Regards,

    Richard....
    Permanent: rgooch@atnf.csiro.au
    Current: rgooch@ras.ucalgary.ca
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