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Subject: 2.4.19-pre7-ac2 USBnet with iPaq freezes host
From: Xavier Bestel <xavier.bestel@free.fr>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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Date: 30 May 2002 00:29:09 +0200
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I've compiled-in (i.e. not as a module) usbnet to talk to my ipaq
through usb0. It works well, mostly, except that sometimes it lockups my
desktop completely (not the pda).

I got bored today and copied the console message on a shit a paper and
retyped it through ksymoops:

wait_on_irq, CPU0
irq: 1 [ 0 1 ]
bh: 0 [ 0 0 ]
stack dumps:
cpu 1: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
       00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
       00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
cpu 0: c19d3f54 c02cb45d 00000000 00000000 00000000 c0109e9d c02cb472 c0349e64
       d5dca000 00000001 c01b854d c0349e64 c19d3fa4 c19d3fe0 c19d2000 d5dca168
       c0120400 d5dca000 c19d2654 ffffffff d5dca130 c0349e64 c01287f7 c0343900
call trace: [<c0109e9d3>] [<c01b854d>] [<c0120400>] [<c01287f7>] [<c0106fd4>]
Warning (Oops_read): Code line not seen, dumping what data is available


Trace; 0000000c0109e9d3 <END_OF_CODE+b106241f4/????>
Trace; c01b854d <flush_to_ldisc+d5/11c>
Trace; c0120400 <__run_task_queue+60/6c>
Trace; c01287f7 <context_thread+137/1d0>
Trace; c0106fd4 <kernel_thread+28/38>