<html>
    <head>
      <base href="https://bugs.freedesktop.org/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Priority</th>
          <td>high
          </td>
        </tr>

        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [SNB Regression]igt/gem_render_linear_blits causes OOM killer"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=75144">75144</a>
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[SNB Regression]igt/gem_render_linear_blits causes OOM killer
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>major
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>huax.lu@intel.com
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=94269" name="attach_94269" title="dmesg">attachment 94269</a> <a href="attachment.cgi?id=94269&action=edit" title="dmesg">[details]</a></span>
dmesg

System Environment:
--------------------------
Platform: Sandybridge
kernel:   (drm-intel-nightly)1be8f2b4dd6d3db00af24d4891c82d2650bd282d

Bug detailed description:
---------------------------
run ./gem_render_linear_blits, It causes OOM killer. It happens on Sandybridge
with -queued and -nightly kernel.

TThe latest known good commit: c461562e84d180fb691af57f93a42bd9cc7eb69c
The latest known bad commit:  4c0e552882114d1edb588242d45035246ab078a0

output:
IGT-Version: 1.5-g9597836 (i686) (Linux:
3.13.0_drm-intel-next-queued_4c0e55_20140218+ i686)
Using 3072 1MiB buffers
Verifying initialisation...
Cyclic blits, forward...
Killed

[  305.969567] Call Trace:
[  305.969584]  [<c08910a9>] ? dump_stack+0x3e/0x4e
[  305.969609]  [<c088dc1c>] ? dump_header.isra.10+0x53/0x15e
[  305.969637]  [<c028e60f>] ? oom_kill_process+0x6e/0x299
[  305.969663]  [<c0290e1e>] ? get_page_from_freelist+0x3a5/0x3d6
[  305.969692]  [<c045b6a8>] ? security_capable_noaudit+0xc/0xf
[  305.969720]  [<c028eb3b>] ? out_of_memory+0x1c3/0x1f0
[  305.969746]  [<c029137b>] ? __alloc_pages_nodemask+0x52c/0x620
[  305.969775]  [<c02ac3a1>] ? read_swap_cache_async+0x50/0xe6
[  305.969802]  [<c02ac497>] ? swapin_readahead+0x60/0x95
[  305.969830]  [<c0299741>] ? shmem_getpage_gfp+0x17e/0x563
[  305.969858]  [<c0486f8d>] ? __sg_free_table+0x45/0x5c
[  305.969883]  [<c0299bcf>] ? shmem_read_mapping_page_gfp+0x1f/0x39
[  305.969922]  [<f818d097>] ? i915_gem_object_get_pages_gtt+0x10c/0x2a4 [i915]
[  305.969961]  [<f8189e3d>] ? i915_gem_object_get_pages+0x53/0x79 [i915]
[  305.969997]  [<f818ca26>] ? i915_gem_object_pin+0x20b/0x4aa [i915]
[  305.970031]  [<f81907ba>] ?
i915_gem_execbuffer_reserve_vma.isra.13+0x6a/0x11d [i915]
[  305.970072]  [<f8190a4d>] ? i915_gem_execbuffer_reserve+0x1e0/0x24f [i915]
[  305.970109]  [<f8191002>] ? i915_gem_do_execbuffer.isra.15+0x546/0xe83
[i915]
[  305.970143]  [<c02b4421>] ? __kmalloc+0x82/0xda
[  305.970170]  [<f8191e83>] ? i915_gem_execbuffer2+0x119/0x1aa [i915]
[  305.970204]  [<f8191d6a>] ? i915_gem_execbuffer+0x42b/0x42b [i915]
[  305.970236]  [<f80847ce>] ? drm_ioctl+0x222/0x30c [drm]
[  305.970266]  [<f8191d6a>] ? i915_gem_execbuffer+0x42b/0x42b [i915]
[  305.970298]  [<c02403dc>] ? hrtimer_forward+0xfe/0x125
[  305.970326]  [<f80845ac>] ? drm_core_reclaim_buffers+0x52/0x52 [drm]
[  305.970357]  [<c02c3cb1>] ? do_vfs_ioctl+0x3f6/0x43d
[  305.970381]  [<c0265cff>] ? clockevents_program_event+0xe6/0x107
[  305.970410]  [<c0266d58>] ? tick_program_event+0x1c/0x1f
[  305.970436]  [<c02408db>] ? hrtimer_interrupt+0x12d/0x1e7
[  305.970463]  [<c02c3d41>] ? SyS_ioctl+0x49/0x74
[  305.970489]  [<c0899cfa>] ? sysenter_do_call+0x12/0x22
[  305.970515] Mem-Info:
[  305.970526] DMA per-cpu:
[  305.970540] CPU    0: hi:    0, btch:   1 usd:   0
[  305.970563] CPU    1: hi:    0, btch:   1 usd:   0
[  305.970587] CPU    2: hi:    0, btch:   1 usd:   0
[  305.970609] CPU    3: hi:    0, btch:   1 usd:   0
[  305.970632] CPU    4: hi:    0, btch:   1 usd:   0
[  305.970655] CPU    5: hi:    0, btch:   1 usd:   0
[  305.970677] CPU    6: hi:    0, btch:   1 usd:   0
[  305.970700] CPU    7: hi:    0, btch:   1 usd:   0

Reproduce steps:
---------------------------- 
1. ./gem_render_linear_blits</pre>
        </div>
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