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Tasklist

FS#6285 - slmodem slusb fifo underrun on kernel26 2.6.19.2-1

Attached to Project: Arch Linux
Opened by golfbuf (golfbuf) - Friday, 26 January 2007, 18:59 GMT
Last edited by Tobias Powalowski (tpowa) - Sunday, 27 May 2007, 08:39 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Tobias Powalowski (tpowa)
Architecture not specified
Severity Medium
Priority Normal
Reported Version 0.7.2 Gimmick
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

I have a usb modem that runs fine with the slusb module in slmodem in kernels earlier than 2.6.19. But, with the voodoo beta1 kernel (kernel26 2.6.19.2-1), the modem freezes the phone line (picking up a phone reveals no sound at all) after varying periods of time. I'm using slmodem 2.9.11-20 and slmodem-utils 2.9.11-12 from extra. When the modem fails, the message in /var/log/everything.log is:

Jan 25 18:41:03 myhost st7554: fifo underrun!

I can restart the modem by stopping the daemon (/etc/rc.d/slmodem stop), then removing the module (rmmod slusb), then modprobing slusb and starting the daemon. It will work for a while, but eventually freeze again.

I believe the hardware is ok because it all works well on another linux partition on the same laptop.

regards,
This task depends upon

Closed by  Tobias Powalowski (tpowa)
Sunday, 27 May 2007, 08:39 GMT
Reason for closing:  Fixed
Comment by Tobias Powalowski (tpowa) - Saturday, 27 January 2007, 16:03 GMT
is it the same kernel?
well problem in binary modules, patching is really difficult, i even don't own such a hardware device.
could you do some searching on google about the issue?
Comment by golfbuf (golfbuf) - Saturday, 27 January 2007, 17:57 GMT
The package says that it's compiled on kernel26 2.6.19.2, which is the same one I installed. But, it's a good idea. I can try rebuilding it from source and see if that makes a difference.

I also have filed a bug at linmodem.org and may have a partial solution from them. I'll test it and report back. For now, I don't need any more from you.

thanks,
Comment by Tobias Powalowski (tpowa) - Wednesday, 14 February 2007, 23:49 GMT
status on kernel 2.6.20 series?
Comment by golfbuf (golfbuf) - Friday, 16 February 2007, 15:40 GMT
Not tested yet, because I haven't been able to update to 2.6.20. But, I had tested 2.6.20rc and was not able to recompile. Some errors about inconsistencies. I am currently giving feedback at linmodems.org, and awaiting their effort at an update.

Comment by golfbuf (golfbuf) - Saturday, 17 February 2007, 13:38 GMT
OK, I have installed kernel26 2.6.20 and slmodem 2.9.11-21 (for kernel 2.6.20). I am now successfully connected. However, I cannot close this bug until I am able to run it for a couple days to see if the "fifo underrun" bug occurs.

thanks for the great job (so far).
Comment by golfbuf (golfbuf) - Saturday, 17 February 2007, 14:01 GMT
OK, same problem with "fifo underrun" error even on kernel 2.6.20.
Comment by Tobias Powalowski (tpowa) - Sunday, 06 May 2007, 08:57 GMT
status on .21 with new slmodem packages?
Comment by Tobias Powalowski (tpowa) - Sunday, 27 May 2007, 08:39 GMT
closing due to no answering

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