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    Subject2.4.10: oops and panic in usb-uhci

    I tried to play a wav on my USB audio speakers (Yamaha YSTMS35D) and got
    panic. The oops (processed by ksymoops) is appended. uhci works OK.

    Regards, Petr

    ksymoops 2.4.3 on i686 2.4.10. Options used
    -V (default)
    -k /proc/ksyms (default)
    -l /proc/modules (default)
    -o /lib/modules/2.4.10/ (default)
    -m /boot/ (default)

    Warning: You did not tell me where to find symbol information. I will
    assume that the log matches the kernel and modules that are running
    right now and I'll use the default options above for symbol resolution.
    If the current kernel and/or modules do not match the log, you can get
    more accurate output by telling me the kernel version and where to find
    map, modules, ksyms etc. ksymoops -h explains the options.

    chazelle login: Unable to handle kernel paging request at virtual address ffffffdc
    *pde = 00001063
    Oops: 0000
    CPU: 0
    EIP: 0010:[<cc902471>]
    Using defaults from ksymoops -t elf32-i386 -a i386
    EFLAGS: 00010203
    eax: 00000000 ebx: c7dd746c ecx: 00000000 edx: c02e9400
    esi: 00000000 edi: c7dd73c0 ebp: c7df3000 esp: c0281eec
    ds: 0018 es: 0018 ss: 0018
    Process swapper (pid: 0, stackpage=c0281000)
    Stack: c7dd746c c7dd73c0 c1322d60 00000000 00000010 c7dea120 00000000 00000001
    cc9025f9 c1322d60 c7dd73c0 00000000 c7dd746c c1322d60 00000000 00000000
    00000000 c011ad8f 00000000 cc90284d c1322d60 c7dd73c8 ca905360 04000001
    Call Trace: [<cc9025f9>] [<c011ad8f>] [<cc90284d>] [<c0107d0f>] [<c0107e6e>]
    [<c0105150>] [<c0105150>] [<c0105150>] [<c0105150>] [<c0105173>] [<c01051d9>]
    [<c0105000>] [<c0105027>]
    Code: 8b 46 dc 8d 6e d8 a9 00 00 80 00 74 39 25 ff ff 7f ff 89 46

    >>EIP; cc902470 <[usb-uhci]process_iso+64/184> <=====
    Trace; cc9025f8 <[usb-uhci]process_urb+68/1fc>
    Trace; c011ad8e <timer_bh+22e/268>
    Trace; cc90284c <[usb-uhci]uhci_interrupt+c0/120>
    Trace; c0107d0e <handle_IRQ_event+2e/58>
    Trace; c0107e6e <do_IRQ+6e/b0>
    Trace; c0105150 <default_idle+0/28>
    Trace; c0105150 <default_idle+0/28>
    Trace; c0105150 <default_idle+0/28>
    Trace; c0105150 <default_idle+0/28>
    Trace; c0105172 <default_idle+22/28>
    Trace; c01051d8 <cpu_idle+40/54>
    Trace; c0105000 <_stext+0/0>
    Trace; c0105026 <rest_init+26/28>
    Code; cc902470 <[usb-uhci]process_iso+64/184>
    00000000 <_EIP>:
    Code; cc902470 <[usb-uhci]process_iso+64/184> <=====
    0: 8b 46 dc mov 0xffffffdc(%esi),%eax <=====
    Code; cc902472 <[usb-uhci]process_iso+66/184>
    3: 8d 6e d8 lea 0xffffffd8(%esi),%ebp
    Code; cc902476 <[usb-uhci]process_iso+6a/184>
    6: a9 00 00 80 00 test $0x800000,%eax
    Code; cc90247a <[usb-uhci]process_iso+6e/184>
    b: 74 39 je 46 <_EIP+0x46> cc9024b6 <[usb-uhci]process_iso+aa/184>
    Code; cc90247c <[usb-uhci]process_iso+70/184>
    d: 25 ff ff 7f ff and $0xff7fffff,%eax
    Code; cc902482 <[usb-uhci]process_iso+76/184>
    12: 89 46 00 mov %eax,0x0(%esi)

    <0>Kernel panic: Aiee, killing interrupt handler!

    1 warning issued. Results may not be reliable.

    Life sucks, but death doesn't put out at all.
    -- Thomas J. Kopp
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