| Summary: | [PNV/ILK/SNB/IVB]igt/gem_concurrent_blit/gtt-gpu-read-after-write-forked causes OOM killer | ||||||
|---|---|---|---|---|---|---|---|
| Product: | DRI | Reporter: | lu hua <huax.lu> | ||||
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Status: | CLOSED FIXED | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Severity: | major | ||||||
| Priority: | medium | ||||||
| Version: | unspecified | ||||||
| Hardware: | All | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
| Attachments: |
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Well that was inevitable... The original intention was to thrash with lots of contending processes. Hopefully commit 1ca607b458b63762846fc95c104b4686eb4eccb3 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Fri Aug 16 09:44:13 2013 +0100 gem_concurrent_blit: Share total num_buffers between all children Apparently not all machines have more than 4GiB of RAM available. Spoilsports. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68169 will make you happier. And there was also a classic leak: commit 1b17cb9d04809f9528279abc44ad74f5559df3b5 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Fri Aug 16 11:23:22 2013 +0100 gem_concurrent_blit: Fix the leak from the children. As the children use the parent's fd, the kernel only has a single filp for everyone. Therefore we cannot rely on the process termination reaping the buffers we allocate for the children. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68169 Freeing stuff is hard: commit 0d320fdcedf9e5fd512597477e9f4913a3c7af33 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Fri Aug 16 12:07:56 2013 +0100 gem_concurrent_blit: Purge the child bufmgr's cache Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68169 Verified.Fixed. Closing old verified. |
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Created attachment 84118 [details] dmesg System Environment: -------------------------- Platform: Pineview/Ironlake/Sandybridge/Ivybridge Kernel: (drm-intel-nightly)d93f59e86ae93066969fa8ae2a6c9ccc7fc4728d Bug detailed description: ----------------------------- It causes OOM killer on Pineview/Ironlake/Sandybridge/Ivybridge with -queued, -fixes, -nightly kernel.It's a new igt case. Following new cases also has this issue: igt/gem_concurrent_blit/cpu-overwrite-source-forked igt/gem_concurrent_blit/gtt-early-read-forked igt/gem_concurrent_blit/gtt-gpu-read-after-write-forked igt/gem_concurrent_blit/gtt-overwrite-source-forked igt/gem_concurrent_blit/prw-early-read-forked igt/gem_concurrent_blit/prw-gpu-read-after-write-forked igt/gem_concurrent_blit/prw-overwrite-source-forked output: Subtest prw-overwrite-source: SUCCESS Subtest prw-early-read: SUCCESS Subtest prw-gpu-read-after-write: SUCCESS Subtest prw-overwrite-source-interruptible: SUCCESS Subtest prw-early-read-interruptible: SUCCESS Subtest prw-gpu-read-after-write-interruptible: SUCCESS [ 377.060662] Call Trace: [ 377.060693] [<c08706a5>] ? dump_stack+0x3e/0x4e [ 377.060737] [<c086d9f4>] ? dump_header.isra.9+0x53/0x15e [ 377.060786] [<c028ce84>] ? oom_kill_process+0x6b/0x2a3 [ 377.062849] [<c028f5fa>] ? get_page_from_freelist+0x382/0x3b6 [ 377.064835] [<c0296050>] ? try_to_free_pages+0x20b/0x25b [ 377.066796] [<c0453852>] ? security_capable_noaudit+0xc/0xf [ 377.068754] [<c028d3bd>] ? out_of_memory+0x1c3/0x1f0 [ 377.070690] [<c028fb17>] ? __alloc_pages_nodemask+0x4e9/0x5e9 [ 377.072609] [<c0297bf4>] ? shmem_getpage_gfp+0x2d1/0x55e [ 377.074630] [<c0297f2a>] ? shmem_read_mapping_page_gfp+0x1f/0x39 [ 377.076581] [<f8454542>] ? i915_gem_object_get_pages_gtt+0x113/0x27e [i915] [ 377.078506] [<c08743c8>] ? schedule_preempt_disabled+0x5/0x6 [ 377.080436] [<c0873148>] ? __mutex_lock_interruptible_slowpath+0x13c/0x146 [ 377.082383] [<f8451919>] ? i915_gem_object_get_pages+0x4b/0x71 [i915] [ 377.084350] [<f8455aef>] ? i915_gem_pwrite_ioctl+0x3a4/0x73a [i915] [ 377.086321] [<f8383b09>] ? drm_ioctl+0x116/0x323 [drm] [ 377.088313] [<f845574b>] ? i915_gem_fault+0x1a6/0x1a6 [i915] [ 377.090313] [<f8383c30>] ? drm_ioctl+0x23d/0x323 [drm] [ 377.092312] [<f845574b>] ? i915_gem_fault+0x1a6/0x1a6 [i915] [ 377.094301] [<c0292b88>] ? pagevec_lru_move_fn+0x98/0xa6 [ 377.096304] [<c02a5cad>] ? page_add_new_anon_rmap+0x2f/0x8b [ 377.098306] [<c02a02b3>] ? handle_pte_fault+0x1f3/0x5e3 [ 377.100287] [<f83839f3>] ? drm_copy_field+0x47/0x47 [drm] [ 377.102247] [<c02c0508>] ? vfs_ioctl+0x18/0x21 [ 377.104216] [<c02c0ed4>] ? do_vfs_ioctl+0x3ec/0x42c [ 377.106196] [<c0877869>] ? __do_page_fault+0x400/0x43b [ 377.108175] [<c087781d>] ? __do_page_fault+0x3b4/0x43b [ 377.110161] [<c02c0f5d>] ? SyS_ioctl+0x49/0x74 [ 377.112135] [<c08793fa>] ? sysenter_do_call+0x12/0x22 [ 377.114111] Mem-Info: [ 377.116076] DMA per-cpu: [ 377.118029] CPU 0: hi: 0, btch: 1 usd: 0 [ 377.119996] CPU 1: hi: 0, btch: 1 usd: 0 [ 377.121948] CPU 2: hi: 0, btch: 1 usd: 0 [ 377.123868] CPU 3: hi: 0, btch: 1 usd: 0 [ 377.125742] Normal per-cpu: [ 377.127580] CPU 0: hi: 186, btch: 31 usd: 0 [ 377.129421] CPU 1: hi: 186, btch: 31 usd: 0 [ 377.131257] CPU 2: hi: 186, btch: 31 usd: 0 [ 377.133042] CPU 3: hi: 186, btch: 31 usd: 0 [ 377.134771] HighMem per-cpu: [ 377.136470] CPU 0: hi: 186, btch: 31 usd: 0 [ 377.138169] CPU 1: hi: 186, btch: 31 usd: 0 [ 377.139857] CPU 2: hi: 186, btch: 31 usd: 0 [ 377.141465] CPU 3: hi: 186, btch: 31 usd: 0 [ 377.143023] active_anon:228986 inactive_anon:229510 isolated_anon:0 [ 377.143023] active_file:26 inactive_file:63 isolated_file:0 [ 377.143023] unevictable:0 dirty:0 writeback:45311 unstable:0 [ 377.143023] free:10385 slab_reclaimable:2946 slab_unreclaimable:7241 [ 377.143023] mapped:82 shmem:406963 pagetables:476 bounce:0 [ 377.143023] free_cma:0 Reproduce steps: ---------------------------- 1. ./gem_concurrent_blit --runsubtest gtt-gpu-read-after-write-forked