This is a known issue, see here as well https://bugs.freedesktop.org/show_bug.cgi?id=109487 Christian. Am 30.01.19 um 12:07 schrieb Przemek Socha: > Good morning, > > after last pull from the amd-staging-drm-next tree (29th of February) I have > random Oops on A6 6310 APU with r4 Mullins. > > Here is the Oops part of the log taken from pstore: > > <1>[ 55.166270] BUG: unable to handle kernel NULL pointer dereference at > 0000000000000208 > <1>[ 55.166281] #PF error: [normal kernel read fault] > <6>[ 55.166285] PGD 0 P4D 0 > <4>[ 55.166293] Oops: 0000 [#1] PREEMPT SMP > <4>[ 55.166301] CPU: 3 PID: 11006 Comm: kwin_x11:cs0 Not tainted 5.0.0-rc1+ > #44 > <4>[ 55.166305] Hardware name: LENOVO 80E3/Lancer 5B2, BIOS A2CN45WW(V2.13) > 08/04/2016 > <4>[ 55.166320] RIP: 0010:ttm_bo_bulk_move_lru_tail+0xd3/0x188 [ttm] > <4>[ 55.166326] Code: 00 4c 8b 0a 48 8b 81 a8 00 00 00 48 81 c1 a8 00 00 00 > 49 89 02 4c 8b 92 b0 00 00 00 4c 89 50 08 44 89 c0 48 c1 e0 04 4c 01 c8 <4c> > 8b 90 08 02 00 00 4d 89 1a 4c 8b 90 08 02 00 00 4c 89 92 b0 00 > <4>[ 55.166330] RSP: 0018:ffffa8bdc0f33b18 EFLAGS: 00010246 > <4>[ 55.166335] RAX: 0000000000000000 RBX: 0000000000000000 RCX: > ffff9cfa935778f8 > <4>[ 55.166339] RDX: ffff9cfa950c5050 RSI: 0000000000000070 RDI: > ffff9cfa93575dd0 > <4>[ 55.166342] RBP: ffff9cfa5d44d800 R08: 0000000000000000 R09: > 0000000000000000 > <4>[ 55.166346] R10: ffff9cfa8f7730f8 R11: ffff9cfa950c50f8 R12: ffff9cfa93575dd0 > <4>[ 55.166350] R13: ffff9cfa93575800 R14: 0000000000000001 R15: ffffffffc03adc10 > <4>[ 55.166355] FS: 00007fb327fff700(0000) GS:ffff9cfa97b80000(0000) knlGS: > 0000000000000000 > <4>[ 55.166359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > <4>[ 55.166363] CR2: 0000000000000208 CR3: 00000002150f0000 CR4: > 00000000000406e0 > <4>[ 55.166366] Call Trace: > <4>[ 55.166477] amdgpu_vm_move_to_lru_tail+0xe4/0x100 [amdgpu] > <4>[ 55.166563] amdgpu_cs_ioctl+0x14e7/0x1b08 [amdgpu] > <4>[ 55.166586] ? __switch_to_asm+0x40/0x70 > <4>[ 55.166689] ? amdgpu_cs_find_mapping+0x110/0x110 [amdgpu] > <4>[ 55.166698] drm_ioctl_kernel+0xa4/0xe8 > <4>[ 55.166707] drm_ioctl+0x1db/0x358 > <4>[ 55.166805] ? amdgpu_cs_find_mapping+0x110/0x110 [amdgpu] > <4>[ 55.166901] amdgpu_drm_ioctl+0x44/0x78 [amdgpu] > <4>[ 55.166931] do_vfs_ioctl+0x9f/0x618 > <4>[ 55.166940] ksys_ioctl+0x5b/0x88 > <4>[ 55.166947] __x64_sys_ioctl+0x11/0x18 > <4>[ 55.166955] do_syscall_64+0x50/0x168 > <4>[ 55.166963] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > <4>[ 55.166969] RIP: 0033:0x7fb34b035fa7 > <4>[ 55.166974] Code: 00 00 00 75 0c 48 c7 c0 ff ff ff ff 48 83 c4 18 c3 e8 8d > dc 01 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 10 00 00 00 0f 05 <48> 3d > 01 f0 ff ff 73 01 c3 48 8b 0d a9 ae 0c 00 f7 d8 64 89 01 48 > <4>[ 55.166978] RSP: 002b:00007fb327ffea88 EFLAGS: 00000246 ORIG_RAX: > 0000000000000010 > <4>[ 55.166984] RAX: ffffffffffffffda RBX: 00007fb327ffec58 RCX: 00007fb34b035fa7 > <4>[ 55.166987] RDX: 00007fb327ffeb10 RSI: 00000000c0186444 RDI: > 0000000000000010 > <4>[ 55.166991] RBP: 00007fb327ffeb10 R08: 00007fb327ffec80 R09: > 00007fb327ffec58 > <4>[ 55.166995] R10: 00007fb327ffeca0 R11: 0000000000000246 R12: > 00000000c0186444 > <4>[ 55.166998] R13: 0000000000000010 R14: 000055ecd2705dc0 R15: > 0000000000000003 > <4>[ 55.167004] Modules linked in: rfcomm nf_tables ebtable_nat ip_set > nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables overlay squashfs > loop bnep ipv6 rtsx_usb_ms memstick rtsx_usb_sdmmc rtsx_usb uvcvideo > videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev > media ath3k btusb btintel bluetooth ecdh_generic ath9k ath9k_common kvm_amd > ath9k_hw sdhci_pci kvm cqhci irqbypass mac80211 sdhci crc32_pclmul > ghash_clmulni_intel ath serio_raw mmc_core cfg80211 amdgpu mfd_core chash > gpu_sched xhci_pci ttm xhci_hcd ehci_pci ehci_hcd sp5100_tco > <4>[ 55.167063] CR2: 0000000000000208 > <4>[ 55.167069] ---[ end trace bf1c4be089002236 ]--- > > Bisected, and it seems that the bad commit is "drm/amdgpu: cleanup setting > bulk_movable". I hope this is relevant. > > full git bisect log: > > git bisect start > # good: [10117450735c7a7c0858095fb46a860e7037cb9a] drm/amd/display: add -msse2 > to prevent Clang from emitting libcalls to undefined SW FP routines > git bisect good 10117450735c7a7c0858095fb46a860e7037cb9a > # bad: [b9c6252b7f980e7e03c0bf659a251798b36a8094] Revert "drm/amd/display: add > -msse2 to prevent Clang from emitting libcalls to undefined SW FP routines" > git bisect bad b9c6252b7f980e7e03c0bf659a251798b36a8094 > # good: [1de29da5b7281c9a8427d84948bf3d77bc4b8d16] drm: disable uncached DMA > optimization for ARM and arm64 > git bisect good 1de29da5b7281c9a8427d84948bf3d77bc4b8d16 > # good: [bbf48cae572b39c4df6023b01d6f8de66ef41b34] Revert "test patch for hpd > dpms check" > git bisect good bbf48cae572b39c4df6023b01d6f8de66ef41b34 > # good: [257b75d373c77d6792d0011f7379398ba60799ec] drm/amdgpu: Show XGMI node > and hive message per device only once > git bisect good 257b75d373c77d6792d0011f7379398ba60799ec > # good: [4d771657c533d8fe3b574c561084f66aebc77bb6] drm/amdgpu: cleanup > amdgpu_pte_update_params > git bisect good 4d771657c533d8fe3b574c561084f66aebc77bb6 > # bad: [4ef27005fefd4be102010b7d8552fec1ee13435a] drm/amdgpu: cleanup setting > bulk_movable > git bisect bad 4ef27005fefd4be102010b7d8552fec1ee13435a > # first bad commit: [4ef27005fefd4be102010b7d8552fec1ee13435a] drm/amdgpu: > cleanup setting bulk_movable > > 4ef27005fefd4be102010b7d8552fec1ee13435a is the first bad commit > commit 4ef27005fefd4be102010b7d8552fec1ee13435a > Author: Christian König > Date: Mon Jan 28 13:41:58 2019 +0100 > > drm/amdgpu: cleanup setting bulk_movable > > We only need to set this to false now when BOs are removed from the LRU. > > Signed-off-by: Christian König > Reviewed-by: Chunming Zhou > > If other info is needed, please do not hesitate. > > Thanks, > Przemek. > > _______________________________________________ > amd-gfx mailing list > amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx