Re: USBDEVFS_RESET deadlocks USB bus.

[Greg KH]

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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