Hit this with an amdgpu piglit run today, see the attached dmesg excerpt. It's ttm_bo_ref_bug() being called from ttm_bo_del_from_lru(). Maybe this is still fallout from the "cleanup setting bulk_movable" change? -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer
Feb 5 15:20:59 kaveri kernel: [ 2006.806877] kernel BUG at drivers/gpu/drm//ttm/ttm_bo.c:196! Feb 5 15:20:59 kaveri kernel: [ 2006.806909] invalid opcode: 0000 [#1] SMP KASAN NOPTI Feb 5 15:20:59 kaveri kernel: [ 2006.806922] CPU: 14 PID: 4058 Comm: shader_runner Tainted: G OE 5.0.0-rc1-00261-gbbf48cae572b #119 Feb 5 15:20:59 kaveri kernel: [ 2006.806929] Hardware name: Micro-Star International Co., Ltd. MS-7A34/B350 TOMAHAWK (MS-7A34), BIOS 1.80 09/13/2017 Feb 5 15:20:59 kaveri kernel: [ 2006.806941] RIP: 0010:ttm_bo_ref_bug.constprop.20+0x5/0x10 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.806945] Code: d3 8b 54 24 04 8b 34 24 e9 74 ff ff ff 48 89 ef e8 60 37 cf d3 eb bd 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 41 55 49 89 fd 41 Feb 5 15:20:59 kaveri kernel: [ 2006.806948] RSP: 0000:ffff88819449f670 EFLAGS: 00010202 Feb 5 15:20:59 kaveri kernel: [ 2006.806952] RAX: 0000000000000001 RBX: ffff88810d4e5dd0 RCX: 0000000000000000 Feb 5 15:20:59 kaveri kernel: [ 2006.806954] RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffff88819449f608 Feb 5 15:20:59 kaveri kernel: [ 2006.806957] RBP: ffff88810d4e5e78 R08: ffffed1032893ec2 R09: ffffed1032893ec1 Feb 5 15:20:59 kaveri kernel: [ 2006.806959] R10: ffffed1032893ec1 R11: 0000000000000003 R12: ffff888328562bf0 Feb 5 15:20:59 kaveri kernel: [ 2006.806967] R13: ffff88810d4e5dfc R14: ffff88810d4e5e80 R15: ffff8881427eef78 Feb 5 15:20:59 kaveri kernel: [ 2006.806976] FS: 00007f8d74113000(0000) GS:ffff88837e180000(0000) knlGS:0000000000000000 Feb 5 15:20:59 kaveri kernel: [ 2006.806987] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Feb 5 15:20:59 kaveri kernel: [ 2006.806995] CR2: 00007f8d6c160210 CR3: 000000019f0f4000 CR4: 00000000003406e0 Feb 5 15:20:59 kaveri kernel: [ 2006.806998] Call Trace: Feb 5 15:20:59 kaveri kernel: [ 2006.807009] ttm_bo_del_from_lru+0x2f9/0x430 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.807022] ttm_bo_swapout+0x1fc/0x680 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.807035] ? ttm_bo_unmap_virtual+0x90/0x90 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.807046] ? .slowpath+0xe/0xe Feb 5 15:20:59 kaveri kernel: [ 2006.807051] ? native_queued_spin_lock_slowpath+0x5b1/0x8b0 Feb 5 15:20:59 kaveri kernel: [ 2006.807062] ? find_held_lock+0x33/0x1c0 Feb 5 15:20:59 kaveri kernel: [ 2006.807070] ? ttm_shrink+0x16c/0x210 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.807078] ? lock_downgrade+0x5d0/0x5d0 Feb 5 15:20:59 kaveri kernel: [ 2006.807088] ? security_capable+0x54/0x90 Feb 5 15:20:59 kaveri kernel: [ 2006.807100] ttm_shrink+0x18a/0x210 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.807116] ttm_mem_global_alloc_zone+0x1b7/0x2f0 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.807130] ttm_pool_populate+0x52c/0xae0 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.807144] ? ttm_pool_unpopulate+0x40/0x40 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.807147] ? lock_downgrade+0x5d0/0x5d0 Feb 5 15:20:59 kaveri kernel: [ 2006.807153] ? mutex_lock_interruptible_nested+0x20/0x20 Feb 5 15:20:59 kaveri kernel: [ 2006.807165] ttm_populate_and_map_pages+0x2a/0x7d0 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.807251] ? amdgpu_bo_move_notify+0x310/0x310 [amdgpu] Feb 5 15:20:59 kaveri kernel: [ 2006.807261] ttm_tt_populate.part.8+0x8b/0x2c0 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.807270] ? ttm_mem_io_reserve_vm+0xbe/0x2f0 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.807276] ? mutex_trylock+0x167/0x1a0 Feb 5 15:20:59 kaveri kernel: [ 2006.807286] ttm_bo_vm_fault+0x777/0x1290 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.807300] ? ttm_bo_vm_access+0x680/0x680 [ttm] Feb 5 15:20:59 kaveri kernel: [ 2006.807372] ? amdgpu_drm_ioctl+0xf7/0x1b0 [amdgpu] Feb 5 15:20:59 kaveri kernel: [ 2006.807384] ? mark_held_locks+0x140/0x140 Feb 5 15:20:59 kaveri kernel: [ 2006.807394] __do_fault+0x80/0x320 Feb 5 15:20:59 kaveri kernel: [ 2006.807402] __handle_mm_fault+0x2011/0x39f0 Feb 5 15:20:59 kaveri kernel: [ 2006.807409] ? trace_hardirqs_on_thunk+0x1a/0x1c Feb 5 15:20:59 kaveri kernel: [ 2006.807415] ? vmf_insert_mixed_mkwrite+0x10/0x10 Feb 5 15:20:59 kaveri kernel: [ 2006.807422] ? find_held_lock+0x33/0x1c0 Feb 5 15:20:59 kaveri kernel: [ 2006.807432] ? mark_held_locks+0xc1/0x140 Feb 5 15:20:59 kaveri kernel: [ 2006.807438] ? handle_mm_fault+0x4e7/0x750 Feb 5 15:20:59 kaveri kernel: [ 2006.807446] handle_mm_fault+0x23f/0x750 Feb 5 15:20:59 kaveri kernel: [ 2006.807455] __do_page_fault+0x402/0x9e0 Feb 5 15:20:59 kaveri kernel: [ 2006.807463] ? page_fault+0x8/0x30 Feb 5 15:20:59 kaveri kernel: [ 2006.807470] page_fault+0x1e/0x30 Feb 5 15:20:59 kaveri kernel: [ 2006.807474] RIP: 0033:0x7f8d7366bf8d Feb 5 15:20:59 kaveri kernel: [ 2006.807480] Code: e3 d7 ff 66 2e 0f 1f 84 00 00 00 00 00 48 8b 87 c8 03 00 00 8b 10 8d 4a 04 3b 48 04 77 6d 48 8b 48 08 8d 72 01 45 31 c0 89 30 <c7> 04 91 00 69 02 c0 8b 10 8d 72 01 89 30 c7 04 91 e5 02 00 00 66 Feb 5 15:20:59 kaveri kernel: [ 2006.807483] RSP: 002b:00007ffdd55743a8 EFLAGS: 00010246 Feb 5 15:20:59 kaveri kernel: [ 2006.807488] RAX: 0000560fa3c62740 RBX: 0000560fa3c51f90 RCX: 00007f8d6c160200 Feb 5 15:20:59 kaveri kernel: [ 2006.807493] RDX: 0000000000000004 RSI: 0000000000000005 RDI: 0000560fa3c51f90 Feb 5 15:20:59 kaveri kernel: [ 2006.807496] RBP: 00007ffdd5574430 R08: 0000000000000000 R09: 0000560fa3c52d18 Feb 5 15:20:59 kaveri kernel: [ 2006.807498] R10: 0000000000000002 R11: 0000000000000000 R12: 00000000000feab8 Feb 5 15:20:59 kaveri kernel: [ 2006.807503] R13: 0000000000000004 R14: 00000000ffffffff R15: 00000000000feabc Feb 5 15:20:59 kaveri kernel: [ 2006.807514] Modules linked in: fuse(E) ipt_MASQUERADE(E) nf_conntrack_netlink(E) nfnetlink(E) xfrm_user(E) xfrm_algo(E) iptable_nat(E) nf_nat_ipv4(E) xt_addrtype(E) iptable_filter(E) bpfilter(E) xt_conntrack(E) nf_nat(E) nf_conntrack(E) nf_defrag_ipv6(E) nf_defrag_ipv4(E) libcrc32c(E) br_netfilter(E) bridge(E) stp(E) llc(E) overlay(E) lz4(E) lz4_compress(E) cpufreq_powersave(E) cpufreq_userspace(E) cpufreq_conservative(E) binfmt_misc(E) sunrpc(E) amdgpu(OE) nls_ascii(E) nls_cp437(E) vfat(E) fat(E) chash(OE) gpu_sched(OE) edac_mce_amd(E) kvm(E) irqbypass(E) radeon(OE) crct10dif_pclmul(E) crc32_pclmul(E) snd_hda_codec_realtek(E) snd_hda_codec_generic(E) ttm(OE) ghash_clmulni_intel(E) ledtrig_audio(E) snd_hda_codec_hdmi(E) wmi_bmof(E) aesni_intel(E) drm_kms_helper(OE) snd_hda_intel(E) aes_x86_64(E) crypto_simd(E) efi_pstore(E) snd_hda_codec(E) sg(E) realtek(E) cryptd(E) drm(OE) glue_helper(E) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) pcspkr(E) r8169(E) sp5100_tco(E) efivars(E) i2c_algo_bit(E) Feb 5 15:20:59 kaveri kernel: [ 2006.807577] snd_timer(E) libphy(E) fb_sys_fops(E) k10temp(E) syscopyarea(E) i2c_piix4(E) sysfillrect(E) ccp(E) sysimgblt(E) snd(E) soundcore(E) rng_core(E) wmi(E) pcc_cpufreq(E) acpi_cpufreq(E) button(E) tcp_bbr(E) sch_fq(E) nct6775(E) hwmon_vid(E) efivarfs(E) ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc32c_generic(E) crc16(E) mbcache(E) jbd2(E) fscrypto(E) dm_mod(E) raid10(E) raid1(E) raid0(E) multipath(E) linear(E) md_mod(E) sd_mod(E) evdev(E) hid_generic(E) usbhid(E) hid(E) ahci(E) xhci_pci(E) libahci(E) xhci_hcd(E) libata(E) crc32c_intel(E) usbcore(E) scsi_mod(E) gpio_amdpt(E) gpio_generic(E)
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