Panic at rum detachment on 5.0 RC2

[Aleksej Saushev <asau%inbox.ru@localhost>]

  Hello!

For some time I experience following panic when unplugging rum(4) USB card:

#0  0xc03837e2 in cpu_reboot ()
#1  0xc02e646d in panic ()
#2  0xc03861cf in trap ()
#3  0xc010cb1f in calltrap ()
#4  0xc037efa6 in db_read_bytes ()
#5  0xc019c7fb in db_get_value ()
#6  0xc037f5ca in db_stack_trace_print ()
#7  0xc02e643e in panic ()
#8  0xc03861cf in trap ()
#9  0xc010cb1f in calltrap ()
#10 0xc034fc21 in rn_walktree ()
#11 0xc0350fbc in rt_walktree ()
#12 0xc0336f28 in if_detach ()
#13 0xc03e70fe in rum_detach ()
#14 0xc02dbad2 in config_detach ()
#15 0xc03d50a0 in usb_disconnect_port ()
#16 0xc03d76d6 in uhub_explore ()
#17 0xc03d185c in usb_discover ()
#18 0xc03d1ba6 in usb_event_thread ()
#19 0xc01002e1 in lwp_trampoline ()

Anything particular to check? My kernel is two weeks old, 26 Feb.,
I'll update and try to reproduce with a recent one.
Anything particular to check?

BTW, the kernel doesn't stop in ddb, it reboots immediatly.
Did anything change or is it a bug?


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