2013-01-28, 21:15
(2013-01-28, 21:05)MilhouseVH Wrote: It seems quite normal to have DMA messages (maybe they should be suppressed) but its the last three (the timeout errors) that seem to be related to the slow performance, and thus the eventual file/partition corruption. It's just that it's quicker to determine slow performance (or the lack of it) by writing a file than waiting for dmesg to report that there is (or isn't?) a problem. An SD card that is behaving itself doesn't generate these timeout messages.
I'm thinking of a command line option for the kernel that means it deliberately reboots when it sees
"mmc0: final write to SD card still running"
That should kick in 5 seconds into boot, so will be quicker that writing a 1M file (after kernel has booted). Also avoids the corruption possibility of writing a file.
