Public bug reported:
Binary package hint: mwavem
I have problems with the ACP Modem (mwave) in an old ThinkPad 600E.
I don't know if this is a problem with my specific hardware setup or if
it really is a bug in the mwavem package itself, so I'm reporting it
here just to let the maintainers know.
The mwave module loads fine. The mwavem daemon (2.0-2) starts
successfully, too.
However, I am unable to make any calls to an internet provider. Every time the
modem tries to dial
a number, the mwavem process crashes. On the other hand, the modem replies to
simple commands like ATZ
or ATI3, so the general (serial) setup seems to be ok.
When I start mwavem manually (not using /etc/init.d/mwavem) to better
see the error messages, all looks well:
[EMAIL PROTECTED]:~# /usr/sbin/mwavem /etc/mwavem/mwavem.conf
Initializing mwave manager...
Initializing modem specific code...
Got configured startup speed: 64000...
Checking configured speed...
Setting modem speed...
Loading modem DSP...
mwave modem, STARTED...
In another terminal, I can now use minicom to successfully talk to the
modem...
Welcome to minicom 2.2
OPTIONS: I18n
Compiled on Mar 7 2007, 15:10:03.
Port /dev/ttyS1
Press CTRL-A Z for help on special keys
AT S7=45 S0=0 L1 V1 X4 &c1 E1 Q0
OK
ati3
ThinkPad Modem v4.0
OK
atz
OK
... until I try for example
atdt1234
which immediately leads to
Segmentation fault (core dumped)
on my first terminal.
(With some tracing enabled via mwavem.conf, the last lines read:
mwmload::mwmLoadDialToModem entry
mwmpool::mwmPoolAllocateCoreChunk entry
mwmpool::mwmPoolTransferControlBlock entry
mwmpool::mwmPoolTransferControlBlock exit
mwmcntnd::mwmCntndAllocSegment entry
mwmcntnd::mwmCntndAllocSegment exit
mwmpool::mwmPoolTransferControlBlock entry
mwmpool::mwmPoolTransferControlBlock exit
mwmpool::mwmPoolTransferControlBlock entry
mwmpool::mwmPoolTransferControlBlock exit
mwmpool::mwmPoolTransferControlBlock entry
mwmpool::mwmPoolTransferControlBlock exit
mwmpool::mwmPoolAllocateCoreChunk exit
mwmload::mwmLoadDialToModem ulFeaturesToLoad 1912d4ea hmodV34 0
mwmload::mwmLoadV34 entry
Segmentation fault (core dumped)
Looks like mwavem dies when loading something like
/usr/share/mwavem/v34.dsp into memory.)
Things I tried so far:
- checked for hardware conflicts using the bios configuration utility ps2.exe
- tried a non-default hardware (irq etc.) setup for serial-a and modem (IR
port is disabled)
- excluded irq 3 and 10 in /etc/pcmcia/config.opts, so the pcmcia handler
does not touch them
- disabled all sound related modules
- compiled and tried my own "ACP Modem (Mwave) Driver for Linux"
(mwavem-2.0.tar.gz) from Sourgeforge
without luck.
I'm running the latest firmware available (INET36WW = 1.16, 11/20/99)
and feisty (7.04). My boot options include "acpi=off pci=noacpi
pnpbios=off vga=0x317".
Regards
Heinz
** Affects: mwavem (Ubuntu)
Importance: Undecided
Status: New
--
mwavem crashes on Thinkpad 600E when trying to dial
https://bugs.launchpad.net/bugs/152724
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