Comment 188 for bug 541511

Created an attachment (id=35329)
GPU hang with newest driver and libdrm. v8 without extra flushing patch.

(In reply to comment #147)
> I think you're hitting the bug I had, which should be fixed by upgrading to
> the 2.11 intel driver and libdrm 2.4.20.

Okay, after a week or two (?) of running v8 without the last extra flushing commit I finally got a hung GPU again. So it seems there is a corner case left for this particular bug somewhere.

Last time I counted I got around 2% failed flushes, but otherwise the system was rock solid. Text corruption was rare too, though I think it did happen the day the GPU hung.

Dump was taken with this script:

#!/bin/bash
PATH="/bin:/usr/bin"
mount /mnt/debug
cd /tmp/

while true; do
 if grep -q 0 /mnt/debug/dri/0/i915_wedged; then
  sleep 1;
 else
  mkdir dump
  dmesg > dump/dmesg
  cp /var/log/Xorg.0.log dump/
  cp -a /mnt/debug/dri/0/* dump/
  tar czf dump.tgz dump
  rm -rf dump
  mv dump.tgz /home/indan/
  sync;
  exit;
 fi
done