Red Hat Bugzilla – Bug 147965
USB system freezes after using ttyUSB0 a while.
Last modified: 2015-01-04 17:16:53 EST
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Description of problem:
After a while communicating using ttyUSB0 the whole USB system freezes:
The connected USB mouse does not react anymore and inserting USB
memory sticks does not trigger an event.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Start a program which communicate over the ttyUSB0 device.
2. Let it run for sometime.
Actual Results: The whole USB bus freezes; no communication anymore,
USB mouse frozen.
Expected Results: Continuous serial communication.
The program I use polls the device if something is there to read.
ioctl( o->sh, FIONREAD, &nbytes );
An update has been released for Fedora Core 3 (kernel-2.6.12-1.1372_FC3) which
may contain a fix for your problem. Please update to this new kernel, and
report whether or not it fixes your problem.
If you have updated to Fedora Core 4 since this bug was opened, and the problem
still occurs with the latest updates for that release, please change the version
field of this bug to 'fc4'.
This bug has been automatically closed as part of a mass update.
It had been in NEEDINFO state since July 2005.
If this bug still exists in current errata kernels, please reopen this bug.
There are a large number of inactive bugs in the database, and this is the only
way to purge them.