This might help, I attached strace to the stucked process and I can see
its in the loop trying to access some resource (attaching)
** Attachment added: Strace output when attached to the stucked process
Public bug reported:
The problem I'm having seems to be related to the following problem:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/772577.
When I plug in the modem most of the times the devices /dev/ttyUSB[0-3]
appear for a second and they disappear. The relevant part of my
** Attachment added: version.log
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1012120/+attachment/3186378/+files/version.log
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Title:
** Attachment added: sudo lspci -vnvn lspci-vnvn.log
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1012120/+attachment/3186379/+files/lspci-vnvn.log
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apport information
** Tags added: apport-collected
** Description changed:
The problem I'm having seems to be related to the following problem:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/772577.
When I plug in the modem most of the times the devices /dev/ttyUSB[0-3]
appear
apport information
** Attachment added: AplayDevices.txt
https://bugs.edge.launchpad.net/bugs/1012120/+attachment/3186429/+files/AplayDevices.txt
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** Attachment added: BootDmesg.txt
https://bugs.edge.launchpad.net/bugs/1012120/+attachment/3186430/+files/BootDmesg.txt
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apport information
** Attachment added: Card0.Amixer.values.txt
https://bugs.edge.launchpad.net/bugs/1012120/+attachment/3186431/+files/Card0.Amixer.values.txt
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** Attachment added: CurrentDmesg.txt
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** Attachment added: Card0.Codecs.codec.2.txt
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** Attachment added: IwConfig.txt
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** Attachment added: Lspci.txt
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apport information
** Attachment added: ProcCpuinfo.txt
https://bugs.edge.launchpad.net/bugs/1012120/+attachment/3186438/+files/ProcCpuinfo.txt
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** Attachment added: ProcInterrupts.txt
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** Attachment added: PciMultimedia.txt
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** Attachment added: ProcModules.txt
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** Attachment added: Lsusb.txt
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** Attachment added: UdevLog.txt
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** Attachment added: UdevDb.txt
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Title:
simple workaround of using the older kernel.
Btw I've seen forum posts claiming that this modem works out of box in
ubuntu 12.04 release. I don't know if this information is helpful.
M
2012/6/12 Christopher M. Penalver christopher.penal...@gmx.com
Marek Kowalski, thank you for reporting
I attach lsusb output as this is fast to do. I will try the kernel and
livecd tomorrow as I have call it a day for today.
** Attachment added: lsubs lsusb
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1012120/+attachment/3186555/+files/lsusb
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Kimmo Satta, the hint with reconnecting the modem a few times does the trick!
Thanks a lot! Basing on this and Hugues Fournier suggestion that this is a race
conditions I tried removing the usb_storage module before pluging the modem and
it works every time!
I do this like this:
sudo modprobe
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