Eric Anholt <eric@xxxxxxxxxx> writes: > [ Unknown signature status ] > "Koenig, Christian" <Christian.Koenig@xxxxxxx> writes: > >> Hi Eric, >> >> thanks for your time to test this. >> >> Am 14.11.18 um 08:07 schrieb Eric Anholt: >>> zhoucm1 <zhoucm1@xxxxxxx> writes: >>> >>>> Ping.. Eric, Could you help try attached patch for your memory issue? >>>> >>>> If you have no time, Could you tell me which tests you're using? Where >>>> can I get the test app? >>> You sent the patch yesterday. I burned 3 of the 4 days I worked last >>> week trying to track down this pile of regressions, and I had other >>> things I was supposed to be doing. My driver is *still* broken in >>> drm-misc-next. >> >> Including the revert? > > As far as I know? Today I worked on cleaning up my old igts so I'll > have automated tests of v3d gpu reset instead of a git stash of some > mesa hacks. Once that's ready I'll rebase onto drm-misc-next and try > again, hopefully tomorrow. OK, got the igts working. My test is: Submit hanging job Submit non-hanging job Wait on non-hanging job. With patch 1/2 in place, recovery works -- the wait returns after 2 seconds. With patch 1/2 removed, the test never completes, and a ^C produces: [ 96.795892] ------------[ cut here ]------------ [ 96.795932] WARNING: CPU: 3 PID: 3149 at drivers/dma-buf/dma-fence.c:225 dma_fence_release+0xfc/0x1b0 [ 96.795937] Modules linked in: [ 96.795948] CPU: 3 PID: 3149 Comm: v3d_cl_hang Not tainted 4.20.0-rc1+ #497 [ 96.795953] Hardware name: Broadcom STB (Flattened Device Tree) [ 96.795971] [<c021237c>] (unwind_backtrace) from [<c020d8f0>] (show_stack+0x10/0x14) [ 96.795984] [<c020d8f0>] (show_stack) from [<c0c3f6a8>] (dump_stack+0xa8/0xd4) [ 96.795997] [<c0c3f6a8>] (dump_stack) from [<c0223568>] (__warn.part.3+0xbc/0xec) [ 96.796005] [<c0223568>] (__warn.part.3) from [<c02236f8>] (warn_slowpath_null+0x44/0x4c) [ 96.796012] [<c02236f8>] (warn_slowpath_null) from [<c0874b04>] (dma_fence_release+0xfc/0x1b0) [ 96.796024] [<c0874b04>] (dma_fence_release) from [<c06f08fc>] (drm_sched_fence_release_scheduled+0x64/0x68) [ 96.796032] [<c06f08fc>] (drm_sched_fence_release_scheduled) from [<c06f0f84>] (drm_sched_entity_fini+0x1e4/0x1e8) [ 96.796042] [<c06f0f84>] (drm_sched_entity_fini) from [<c083c9cc>] (v3d_postclose+0x18/0x2c) [ 96.796055] [<c083c9cc>] (v3d_postclose) from [<c06be7b8>] (drm_file_free.part.0+0x1e8/0x2c0) [ 96.796064] [<c06be7b8>] (drm_file_free.part.0) from [<c06bedf0>] (drm_release+0x8c/0x108) [ 96.796074] [<c06bedf0>] (drm_release) from [<c03930ec>] (__fput+0xa4/0x1e4) [ 96.796083] [<c03930ec>] (__fput) from [<c02480cc>] (task_work_run+0x9c/0xd0) [ 96.796092] [<c02480cc>] (task_work_run) from [<c022817c>] (do_exit+0x474/0xbf0) [ 96.796099] [<c022817c>] (do_exit) from [<c0229de0>] (do_group_exit+0x3c/0xbc) [ 96.796111] [<c0229de0>] (do_group_exit) from [<c02371a4>] (get_signal+0x250/0x9f4) [ 96.796118] [<c02371a4>] (get_signal) from [<c020cf00>] (do_work_pending+0x118/0x5f8) [ 96.796126] [<c020cf00>] (do_work_pending) from [<c0201034>] (slow_work_pending+0xc/0x20) [ 96.796131] Exception stack(0xe90f7fb0 to 0xe90f7ff8)
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