[Bug 198546] [NEW] freeze after trying to read from /dev/ttyUSB0

[Nikolay Bachiyski]

Public bug reported:

Binary package hint: linux-source

1) Tried with both latest Ubuntu and Kubuntu 8.04 hardy alphas (as of March, 4th)
2) linux kernel
3) Version: 2.6.24.11.11
4) I was trying to get data from a gps tracker, which needed usbserial, using the instructions on a that website: http://schimmelnetz.de/projekte/iTU4l/
Here is what I did, in a nutshell:
  * lsusb showed: Bus 003 Device 005: ID 03eb:6126 Atmel Corp.
  * Added to /etc/modprobe.d/options: options usbserial vendor=0x03EB product=0x6126
  * Added to /etc/udev/rules.d/66-atmel-usb.rules: SUBSYSTEM=="usb", SYSFS{idProduct}=="6126", SYSFS{idVendor}=="03eb", RUN+="/sbin/modprobe usbserial"
  * Connected the device, lsmod showed: usbserial              35816  0
  * Tried to read data from it, using Hartmut Schimmel's tool iTU4l.pl: http://schimmelnetz.de/projekte/iTU4l/download/iTU4l.pl
  * The tool does a sysread and was expected to get some result back
5) Computer freezed

Note: the same setup works if I boot the latest 2.6.22 kernel I had from
gutsy: 2.6.22-14

** Affects: linux-meta (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: kernel usbserial

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freeze after trying to read from /dev/ttyUSB0
https://bugs.launchpad.net/bugs/198546
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