http://bugzilla.suse.com/show_bug.cgi?id=1129428
http://bugzilla.suse.com/show_bug.cgi?id=1129428#c23
--- Comment #23 from Vlastimil Babka
After installing the BIOS Update the segfaulting and Oopsing continues as before. With a slight difference: Firefox with taskset -c 3 Oopses within seconds Firefox with taskset -c 7 can run for up to an hour just with segfaults in the background until the system finally froze.
"In the background" means it's other processes than firefox that are segfaulting? Too bad cpu number is not reported there, in case it's cpu 3... What about disabling only cpu3 and testing firefox on cpu7?
How can I find out if its the hardware that is faulty?
Do you know of a kernel version that worked fine on this system? Can you go back to it and verify that it still works?
Bernhard Wiedemann told me about a bug where a spectre patch had an off by one when counting the cpu numbers (I don't have details, Bernhard can you please provide links or details?). This might also be a possibility, right?
I wouldn't be surprised. Can you check in /proc/cpuinfo that the 'microcode', 'flags' and 'bugs' fields are identical for all of 8 logical processors? -- You are receiving this mail because: You are on the CC list for the bug.