[hylafax-users] Trouble with Multitech USB Modem

[Davide Pagnin <pagnin@xxxxxxxxxxxxxx>]

Hi all!

I've recently tried to install a server with 2 usb modem.

Hylafax 4.2.1
Redhat Enterprise Linux 3.0 update 5 (kernel 2.4.21-32.0.1-EL).
2 Multitech Multimodem MT5634ZBA-USB-V92 (with latest firmware I know of 
2.27M)
Both modem are configured as class 1 modem with the proposed default 
configuration for multitech ZBA modem.

From time to time (3 time in half a day of testing) I get a kernel panic!

I have the call trace (which involves mainly faxsend, acm and usb-uhci 
kernel modules).

The problem arises when a call is reject (busy line/no carrier/whatever) 
and the scheduler, after some minutes, try that job again. (On of the 
three kernel panic happened just after rebooting from the first kernel 
panic, thus was raised from a job already in the queue.

Any ideas from where to start to catch this?

Thanks in advance.

Ciao, Davide


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