I realize my issue is not related to Python but I find the same problem when I use the serial port from Perl using the Device::SerialPort class. My scripts have run for almost 10 years without a problem till the last system upgrade to kernel ending in -65. I find that reverting to kernel ending in -63 the problem does not exist, but it clearly exists under kernel -65...
I concur with the poster above who considers this a bug in the serial port driver or possibly in the kernel's poll() or select() function. For the time being our organization has a policy to not upgrade to any new kernels till this issue is resolved. We consider this a very very bad bug in the OS... We have been loyal Ubuntu users since 2008 (Ubuntu 8.04) and have been very happy with the distro... I hope that the kernel developers consider this a HIGH PRIORITY issue and repair it by the next kernel release. Thank you, Michael Uman -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1501345 Title: linux-image-3.13.0-65-generic 3.13.0-65 breaks Python based Serial communication To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1501345/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
