** Description changed: - Pandaboard ES freezes after SD card write accesses. You can easily reproduce the issue with a simple "copy A B" script loop on the SD card, where file A is about 1 GB. The Pandaboard ES will freeze after a few minutes ... up to a few hours. + Pandaboard ES freezes after SD card write accesses. You can easily reproduce the issue with a simple "copy A B" script loop on the SD card, where file A is about 1 GB. The Pandaboard ES will freeze after a few minutes ... up to one hour. Without this specific write job, the freeze will occur after several hours, just due to regular write accesses of the running system. It is a complete freeze, no syslog entry, no serial access, no network, no keyboard/mouse anymore. When pressing the reset button, it will not even reboot. The SD card interface seems to be hanging. Power-cycle works. I tested 5 different cards with all the same result. Notably, the same cards work well in three other SD card readers, and also in Pandaboard ES when running the Oneiric-preinstalled image (plus ubuntu- omap4-extras) instead of Precise-daily. I found the big difference from Oneiric to Precise is the SD-card interface speed (checked with hdparm): Oneiric: 8.7 MB/s - Precise: ~16 MB/s + Precise: ~16 MB/s So, maybe the faster mode in Precise uncovers a HW issue on the Pandaboard ES SD/MMC interface? ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-omap4 3.2.0.1409.9 ProcVersionSignature: Ubuntu 3.2.0-1409.12-omap4 3.2.9 Uname: Linux 3.2.0-1409-omap4 armv7l ApportVersion: 1.94.1-0ubuntu2 Architecture: armhf Date: Mon Mar 26 01:51:02 2012 ProcEnviron: - TERM=xterm - LANG=de_DE.UTF-8 - SHELL=/bin/bash + TERM=xterm + LANG=de_DE.UTF-8 + SHELL=/bin/bash SourcePackage: linux-meta-ti-omap4 UpgradeStatus: No upgrade log present (probably fresh install)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/964878 Title: Pandaboard ES freezes after massive SD card write accesses To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta-ti-omap4/+bug/964878/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
