id summary reporter owner description type status priority milestone component version severity resolution keywords cc mlocked 6490 Page allocation failure prevents recording until backend restart mythtv@… danielk "Using an ATSC USB tuner (the Pinnacle PCTV HD Pro stick, driver em28xx), on Ubuntu Intrepid x64 I get a regular 'page allocation failure' that prevents recording. The dmesg backtrace talks about dma allocation, usb, em28xx driver and dvb in that order (see attachment). Symptoms: After the error, going to LiveTV will always show the banner, but 'Partial Lock' - never acquiring 'Lock' and never showing video. This prevents recordings from happening as well - they are entered in the list, but do not exist on disk and show up as 'File missing' when played. To (temporarily) fix, one can:[[BR]] stop the backend[[BR]] unplug the tuner (USB)[[BR]] replug the tuner[[BR]] start the backend After these steps, LiveTV works fine - but it will not stay fixed for long, the same error will reoccur. The error has gotten significantly more frequent recently; it used to be several days between each occurrence, but now I can't even record a single program. I am unaware, nor do I know how to find out, whether this is a bug in the kernel, the driver, or MythTV. I'll be glad to do whatever is needed to pinpoint this down... See attached for relevant DMesg output " defect closed minor unknown MythTV - DVB/ATSC 0.21-fixes high invalid 0