Date: Sat, 30 Oct 2004 08:56:05 GMT From: Yuri Victorovich <yuri@tsoft.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/73307: Kernel panics on USB disconnect Message-ID: <200410300856.i9U8u5iW098412@www.freebsd.org> Resent-Message-ID: <200410300900.i9U90kwx013179@freefall.freebsd.org>
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>Number: 73307
>Category: kern
>Synopsis: Kernel panics on USB disconnect
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Oct 30 09:00:46 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator: Yuri Victorovich
>Release: 5.3RC1 amd64
>Organization:
>Environment:
same as ISO image of 5.3RC1 amd64
>Description:
When I disconnect Sony-F828 camera's USB interface I get panic:
----
umass0: CBI reset failed, STALLED
umass0: CBI bulk-in stall clear failed, STALLED
umass0: CBI bulk-out stall clear failed, STALLED
Fatal trap 18: integer divide fault while in kernel mode
cpuid - 0; apic id = 00
instruction pointer = 0x8:0xffffffff08159205
stack pointer = 0x10:0xffffffffa53895f0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 44 (swi3: cambio)
trap number = 18
panic: integer divide fault
cpuid = 0
Uptime: 6m4s
----
USB driver umass0 probably would have problem with this camera
(has problem with stall on FreeBSD 4.2 i386).
USB device was not fully enabled, only first line:
umass0: ..
was printed, then if to wait it would have printed that connection stalled.
Panic occured between these two messages.
This was the second or third time I disconnected camera when panic
occured. The first time(s) was no panic.
>How-To-Repeat:
see above
>Fix:
N/A
>Release-Note:
>Audit-Trail:
>Unformatted:
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