On 17-03-21 11:30:36, Tahvanainen, Jari wrote:
Note that this is for all the patches in series, replied only on [1/15]. See also https://bugs.freedesktop.org/show_bug.cgi?id=94001#c45
Jari, did you test this patch specifically? It would involve introspection of the error state.
From: Chris Wilson [mailto:chris@xxxxxxxxxxxxxxxxxx] Sent: Thursday, March 16, 2017 3:20 PM To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx Cc: Ben Widawsky <ben@xxxxxxxxxxxx> Subject: [01/15] drm/i915: Copy user requested buffers into the error state Introduce a new execobject.flag (EXEC_OBJECT_CAPTURE) that userspace may use to indicate that it wants the contents of this buffer preserved in the error state (/sys/class/drm/cardN/error) following a GPU hang involving this batch. Use this at your discretion, the contents of the error state. although compressed, are allocated with GFP_ATOMIC (i.e. limited) and kept for all eternity (until the error state is destroyed). Based on an earlier patch by Ben Widawsky <ben@xxxxxxxxxxxx<mailto:ben@xxxxxxxxxxxx>> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx<mailto:chris@xxxxxxxxxxxxxxxxxx>> Cc: Ben Widawsky <ben@xxxxxxxxxxxx<mailto:ben@xxxxxxxxxxxx>> Cc: Matt Turner <mattst88@xxxxxxxxx<mailto:mattst88@xxxxxxxxx>> Acked-by: Ben Widawsky <ben@xxxxxxxxxxxx<mailto:ben@xxxxxxxxxxxx>> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx<mailto:joonas.lahtinen@xxxxxxxxxxxxxxx>> Tested-by: Jari Tahvanainen <jari.tahvanainen@xxxxxxxxx> for https://patchwork.freedesktop.org/series/21377 on my dev-SKL (i5-6600k) by taking all the gem_exec_reloc cases to testlist (151 tests). Executing those as a full set through piglit was not successful due to out-of-memory conditions at the end of the testlist with some (varying) gtt-xx subcases causing "Command terminated by signal 9". cpu-xx did not signal any problems. drm-tip: 2017y-03m-17d-08h-03m-19s without patch series produced: [151/151] skip: 2, pass: 120, fail: 29 with patch series applied one gets: [121/151] pass: 121 | running: igt/gem_exec_reloc/gtt-28 - "Command terminated by signal 9" Taking rest as new testlist [30/30] skip: 2, pass: 30, dmesg-warn: 1 having dmesg-warn: igt/gem_exec_reloc/readonly-32 skip: igt/gem_exec_reloc/active-bsd1 skip: igt/gem_exec_reloc/active-bsd2 When running tests gtt-xx tests individually then result for all is pass. $ sudo ./gem_exec_reloc --run-subtest cpu-31 IGT-Version: 1.17-g3e3c1cd (x86_64) (Linux: 4.11.0-rc2-ezbench_cb106cd+ x86_64) Subtest cpu-31: SUCCESS (3,760s) $ sudo ./gem_exec_reloc --run-subtest gtt-31 IGT-Version: 1.17-g3e3c1cd (x86_64) (Linux: 4.11.0-rc2-ezbench_cb106cd+ x86_64) Subtest gtt-31: SUCCESS (25,313s) $ sudo ./gem_exec_reloc --run-subtest gtt-30 IGT-Version: 1.17-g3e3c1cd (x86_64) (Linux: 4.11.0-rc2-ezbench_cb106cd+ x86_64) Subtest gtt-30: SUCCESS (11,196s) $ sudo ./gem_exec_reloc --run-subtest gtt-29 IGT-Version: 1.17-g3e3c1cd (x86_64) (Linux: 4.11.0-rc2-ezbench_cb106cd+ x86_64) Subtest gtt-29: SUCCESS (5,198s) $ sudo ./gem_exec_reloc --run-subtest gtt-28 IGT-Version: 1.17-g3e3c1cd (x86_64) (Linux: 4.11.0-rc2-ezbench_cb106cd+ x86_64) Subtest gtt-28: SUCCESS (2,543s)
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