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[Daniel Manrique <daniel.manrique@xxxxxxxxxxxxx>]

This crash is now happening for us pretty reliably even without our test
configuration, i.e. with a "pristine" image. Bug 720235 details one of
the "look ma, no hands" crashes we had, and I just had another one with
the latest (today) desktop image.

post-crash, here's the i915_gem_objects file asked for by Timo:
917 objects, 64212992 bytes
287 [287] objects, 58945536 [58945536] bytes in gtt
  0 [0] active objects, 0 [0] bytes
  6 [6] pinned objects, 4370432 [4370432] bytes
  281 [281] inactive objects, 54575104 [54575104] bytes
  0 [0] freed objects, 0 [0] bytes
6 pinned mappable objects, 4370432 bytes
33 fault mappable objects, 9695232 bytes
536866816 [268435456] gtt total

here's /proc/meminfo and free (at the end)

MemTotal:        1918868 kB
MemFree:         1122560 kB
Buffers:           93568 kB
Cached:           461948 kB
SwapCached:            0 kB
Active:           248412 kB
Inactive:         466556 kB
Active(anon):     163432 kB
Inactive(anon):    89776 kB
Active(file):      84980 kB
Inactive(file):   376780 kB
Unevictable:           0 kB
Mlocked:               0 kB
HighTotal:       1044544 kB
HighFree:         409540 kB
LowTotal:         874324 kB
LowFree:          713020 kB
SwapTotal:       1951740 kB
SwapFree:        1951740 kB
Dirty:                 4 kB
Writeback:             0 kB
AnonPages:        159432 kB
Mapped:            54344 kB
Shmem:             93760 kB
Slab:              44560 kB
SReclaimable:      30888 kB
SUnreclaim:        13672 kB
KernelStack:        2240 kB
PageTables:         4552 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     2911172 kB
Committed_AS:    1162748 kB
VmallocTotal:     122880 kB
VmallocUsed:       32816 kB
VmallocChunk:      81464 kB
HardwareCorrupted:     0 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       4096 kB
DirectMap4k:       16376 kB
DirectMap4M:      892928 kB

             total       used       free     shared    buffers     cached
Mem:       1918868     796308    1122560          0      93568     461952
-/+ buffers/cache:     240788    1678080
Swap:      1951740          0    1951740

Now what seems odd here is that this system has a swap file (picked up
/dev/sda5 from a previous installation attempt), so it would seem to me
that, if a process were gobbling up memory, the system would start
thrashing before X crashed. In my experience this doesn't happen. But
admittedly I have no idea how X handles memory for applications so I
might be way off the mark here.

Since the problem is reproducible on the pristine image, I'll see what I
can do to monitor the list of processes for runaway memory consumption,
and report back here as soon as I have something.

Thanks all for your help!

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https://bugs.launchpad.net/bugs/714829

Title:
  Xorg segfaults during LiveCD installation using preseed file