[snb] stale TLB entries -> hang with random IPEHR
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Quantal Backports |
New
|
Undecided
|
Unassigned | ||
xserver-xorg-video-intel (Ubuntu) |
Fix Committed
|
Undecided
|
Unassigned |
Bug Description
Hi,
I'm victim of freezes (maybe GPU hangs). The mouse can't move. When there is sound playing, it freezes too.
Sometimes hangs lasts 10 seconds and other times, 10 minutes are not sufficient nad it requires hardware reboot.
It happens randomly (means that I don't know what caused the freezes) and I tried but can't reproduced it.
"$ ubuntu-bug xserver-
I saw thoses bugs related but don't know if there is a real link (IPEHR, chips and kernels are different...) :
#1102390 [sandybridge-m-gt2] False GPU lockup IPEHR: 0x01800100 IPEHR: 0x0b140001
#1111094 [sandybridge-m-gt2] False GPU lockup IPEHR: 0x01800001 IPEHR: 0x0b140001
#1119402 [sandybridge-m-gt2] GPU lockup IPEHR: 0x7a000003 IPEHR: 0x0b140001
#1135473 [sandybridge-m-gt2 mesa] GPU lockup IPEHR: 0x7a000002 IPEHR: 0x0b140001
#1154591 [sandybridge-
#1156004 [sandybridge-m-gt2] False GPU lockup IPEHR: 0xfffefefe IPEHR: 0x0b140001
#1157507 [sandybridge-m-gt2] GPU lockup IPEHR: 0xbf4f0000 IPEHR: 0x0b140001
This is my configuration (I added things that I've read from other and might be important):
Ubuntu Precise 12.04 i686
Notebook: Clevo W150HRM
Processor and iGPU: Intel core i5-2520
Graphics dGPU: nVidia GT555M
Hard drives: main Crucial C300 and slave 1TB Seagate
I join the crash logs contained in /var/crash and a lspci list.
summary: |
- [sandybridge-m-gt2+] GPU lockup IPEHR: 0x54f00006 IPEHR: 0x0b140001 + [snb] stale TLB entries -> hang with random IPEHR |
affects: | quantal-backports → precise-backports |
affects: | precise-backports → quantal-backports |
tags: | added: freeze |
The common here is the TLB invalidate bug. It is fixed in v3.8 (raring), someday someone may backport the fixes.