[Bug 222624] [usb] [panic] thread's sleep queue 0 is not empty at usb_process.c:193

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222624

Hans Petter Selasky <hselasky at FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |mjg at FreeBSD.org

--- Comment #13 from Hans Petter Selasky <hselasky at FreeBSD.org> ---
Do you have a core dump of the last crash?

Can you run gdb:

gdb
file /boot/kernel/ehci.ko
info line *(void *)(ehci_check_transfer+0x94)

In my system this leads to the xfer->td_transfer_cache is NULL.
This variable should not be NULL during regular usage. This might be an
indication of another memory problem or maybe a mutex issue.

It would be interesting to dump some structures to see if their contents is
valid.

--HPS

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