Created attachment 862996 [details] Details from /var/log/messages 3.11 works find, but I get this with 3.12 It doesn't happen under light load. I'm running several GPS units over serial and USB to ntpd and gpsd.
Created attachment 862998 [details] more from /var/log/messages
Sorry for the clutter. I poked something I didn't intend to. Typo: 3.11 works fine. I have many samples in the log files. tty_flip_buffer_push is in all of them.
I reported issue upstream. https://lkml.org/lkml/2014/2/18/77 For know please use 3.11 kernel.
Patch for this bug was merged to tty-next (now law_latency has no effect on tty layer, it can be used as hint to h/w driver though): https://git.kernel.org/cgit/linux/kernel/git/gregkh/tty.git/commit/?h=tty-next&id=a9c3f68f3cd8d55f809fbdb0c138ed061ea1bd25 Josh, please apply it fix for this bug.
Fixed in git. Thanks!
kernel-3.13.5-202.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/kernel-3.13.5-202.fc20
kernel-3.13.5-103.fc19 has been submitted as an update for Fedora 19. https://admin.fedoraproject.org/updates/kernel-3.13.5-103.fc19
Package kernel-3.13.5-202.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing kernel-3.13.5-202.fc20' as soon as you are able to, then reboot. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-3442/kernel-3.13.5-202.fc20 then log in and leave karma (feedback).
kernel-3.13.5-202.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.
kernel-3.13.5-103.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.
*** Bug 1081017 has been marked as a duplicate of this bug. ***