Don't know if this will help. I just learned about pstore, and see in there a dmesg that's interesting.
The serial port kernel errors started this time with "BUG: unable to handle kernel paging request". The pstore dmesg has everything from there until the end of the first trace. But, the interesting part is the pstore dmesg has 310 "BTRFS: decompress failed" messages the serial port (the versions I've shared) version doesn't. (Sometimes the serial crashes have 1 of these btrfs errors, but never repeated like this.) These 310 btrfs errors are all uptime-stamped from 13110.016096 - 13110.253752, when the BUG is later at 13110.370494 (when the serial errors start.) With the kernel trying to decompress 310 times within 0.237656 seconds, maybe that's an indication with invalid data, it retries forever in a bad way crashing the kernel, rather than failing? -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
