USB System hangs after removing Yubikey

[Joseph Ward]

Brilliant, thank you so much.  I'll have to add procstat to my toolkit!

Firefox is the culprit.

17024 101907 firefox             -                   mi_switch+0xe2
sleepq_catch_signals+0x425 sleepq_wait_sig+0xf _cv_wait_sig+0x154
usb_read+0x1ad devfs_read_f+0xd5 dofileread+0x95 sys_read+0xc1
amd64_syscall+0x364 fast_syscall_common+0x101


I close it and the USB system starts responding again.

Now I just need to figure out who to report that to.

Thank you again!

-Joseph Ward



On 2020-06-20 13:22, Hans Petter Selasky wrote:
> On 2020-06-20 19:03, Joseph Ward wrote:
>> Can anyone propose any other troubleshooting steps I should take?
>
> Try doing "procstat -akk", maybe some process is simply not exiting
> properly freeing the handle it has got for the USB device.
>
> --HPS