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    SubjectRe: USBDEVFS_RESET deadlocks USB bus.
    On Fri, Jun 04, 2004 at 04:02:11PM -0400, Zephaniah E. Hull wrote:
    >
    > lt-pilot-xfer D 00000000 0 11415 2709 (NOTLB)
    > d2ad3eb0 00000086 c022391a 00000000 3231203a 000a2e35 00000001 d2ad3ea7
    > d4edd000 d7fc8a00 c8449790 00000000 abb31900 000f447a c4bae4b8 c977d824
    > 00000246 d2ad2000 d2ad3eec c0336735 c977d82c c4bae310 00000001 c4bae310
    > Call Trace:
    > [<c0336735>] __down+0x85/0x120
    > [<c033692f>] __down_failed+0xb/0x14
    > [<c026af27>] .text.lock.hub+0x69/0x82
    > [<c0272b7f>] usbdev_ioctl+0x19f/0x710
    > [<c015a45d>] file_ioctl+0x5d/0x170
    > [<c015a686>] sys_ioctl+0x116/0x250
    > [<c0103f8f>] syscall_call+0x7/0xb
    >
    > This is on 2.6.7-rc2-mm1.

    Ah, can you not try the -mm1 kernel? This problem should not be in the
    mainline kernel. There was a locking issue in the last bk-usb patch
    that made it into the -mm1 kernel that was fixed yesterday.

    thanks,

    greg k-h
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