ROSA Linux Bugzilla – Bug 1752
Last modified: 2013-03-06 22:32:50 MSK
Description of problem:
No user actions was made.
Laptop was without user interaction.
Created attachment 1250 [details]
I have looked through the C and binary code of task_active_pid_ns() kernel function (the one where the crash happened).
Looks like a hardware failure. The function has read an address of a structure from memory which differs from the valid address in a single bit only:
The crash happens when the function tries to access the memory at that "bad" address.
I would recommend running Memtest86+ on that machine for several hours at least. Let's see if it finds something.
It is possible, of course, that something else may have corrupted memory in such a peculiar way... Let's see what Memtest86+ shows first.
Yes, extensive memory testing confirm memory error (one bit?)
Sorry for disturbance.
I also request for memtest in grub2 loader.