Hi Ray,
On 2018-08-22 9:52 a.m., Huang Rui wrote: > The new bulk moving functionality is ready, the overhead of moving PD/PT bos > to > LRU is fixed. So move them on LRU again. > > Signed-off-by: Huang Rui <ray.hu...@amd.com> > Tested-by: Mike Lothian <m...@fireburn.co.uk> > Tested-by: Dieter Nützel <die...@nuetzel-hh.de> > Acked-by: Chunming Zhou <david1.z...@amd.com> > Reviewed-by: Junwei Zhang <jerry.zh...@amd.com> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c > b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c > index db1f28a..d195a3d 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c > @@ -1107,7 +1107,7 @@ int amdgpu_vm_update_directories(struct amdgpu_device > *adev, > struct amdgpu_vm_bo_base, > vm_status); > bo_base->moved = false; > - list_del_init(&bo_base->vm_status); > + list_move(&bo_base->vm_status, &vm->idle); > > bo = bo_base->bo->parent; > if (!bo) > Since this change, I'm getting various badness when running piglit using radeonsi on Bonaire, see the attached dmesg excerpt. Reverting just this change on top of current amd-staging-drm-next avoids the problem. Looks like some list manipulation isn't sufficiently protected against concurrent execution? -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer
Aug 27 17:34:59 kaveri kernel: [ 567.429026] WARNING: CPU: 7 PID: 12214 at drivers/gpu/drm//ttm/ttm_bo.c:228 ttm_bo_move_to_lru_tail+0x28b/0x3d0 [ttm] Aug 27 17:34:59 kaveri kernel: [ 567.429029] Modules linked in: fuse(E) lz4(E) lz4_compress(E) amdkfd(OE) amdgpu(OE) cpufreq_powersave(E) cpufreq_userspace(E) cpufreq_conservative(E) chash(OE) gpu_sched(OE) binfmt_misc(E) nls_ascii(E) nls_cp437(E) vfat(E) edac_mce_amd(E) fat(E) kvm(E) irqbypass(E) crct10dif_pclmul(E) crc32_pclmul(E) ghash_clmulni_intel(E) pcbc(E) radeon(OE) snd_hda_codec_realtek(E) snd_hda_codec_generic(E) snd_hda_codec_hdmi(E) ttm(OE) snd_hda_intel(E) wmi_bmof(E) aesni_intel(E) efi_pstore(E) aes_x86_64(E) crypto_simd(E) drm_kms_helper(OE) cryptd(E) glue_helper(E) pcspkr(E) efivars(E) snd_hda_codec(E) k10temp(E) drm(OE) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) snd_timer(E) i2c_algo_bit(E) fb_sys_fops(E) r8169(E) sp5100_tco(E) syscopyarea(E) snd(E) sysfillrect(E) ccp(E) sg(E) mii(E) sysimgblt(E) soundcore(E) i2c_piix4(E) Aug 27 17:34:59 kaveri kernel: [ 567.429118] rng_core(E) wmi(E) button(E) acpi_cpufreq(E) tcp_bbr(E) sch_fq(E) sunrpc(E) nct6775(E) hwmon_vid(E) efivarfs(E) ip_tables(E) x_tables(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) libahci(E) xhci_pci(E) libata(E) xhci_hcd(E) crc32c_intel(E) scsi_mod(E) usbcore(E) gpio_amdpt(E) gpio_generic(E) Aug 27 17:34:59 kaveri kernel: [ 567.429182] CPU: 7 PID: 12214 Comm: shader_run:cs0 Tainted: G W OE 4.18.0-rc1+ #111 Aug 27 17:34:59 kaveri kernel: [ 567.429184] Hardware name: Micro-Star International Co., Ltd. MS-7A34/B350 TOMAHAWK (MS-7A34), BIOS 1.80 09/13/2017 Aug 27 17:34:59 kaveri kernel: [ 567.429191] RIP: 0010:ttm_bo_move_to_lru_tail+0x28b/0x3d0 [ttm] Aug 27 17:34:59 kaveri kernel: [ 567.429192] Code: c1 ea 03 80 3c 02 00 0f 85 e6 00 00 00 48 8b 83 e8 01 00 00 be ff ff ff ff 48 8d 78 60 e8 1d 08 1e c3 85 c0 0f 85 c3 fd ff ff <0f> 0b e9 bc fd ff ff 48 8d bb d0 01 00 00 48 b8 00 00 00 00 00 fc Aug 27 17:34:59 kaveri kernel: [ 567.429285] RSP: 0018:ffff8803e6aa76a8 EFLAGS: 00010246 Aug 27 17:34:59 kaveri kernel: [ 567.429290] RAX: 0000000000000000 RBX: ffff8803d7f4aad0 RCX: 1ffff1007afe95f1 Aug 27 17:34:59 kaveri kernel: [ 567.429292] RDX: 0000000000000000 RSI: ffff8803c61b57a0 RDI: 0000000000000246 Aug 27 17:34:59 kaveri kernel: [ 567.429295] RBP: ffff8803d4c58638 R08: ffffed007cd54ebe R09: ffffed007cd54ebe Aug 27 17:34:59 kaveri kernel: [ 567.429297] R10: 0000000000000001 R11: ffffed007cd54ebe R12: ffff8803d4c58078 Aug 27 17:34:59 kaveri kernel: [ 567.429299] R13: ffff8803d4c58000 R14: ffff8803d7f4aa80 R15: dffffc0000000000 Aug 27 17:34:59 kaveri kernel: [ 567.429301] FS: 00007ff030b2d700(0000) GS:ffff8803ee1c0000(0000) knlGS:0000000000000000 Aug 27 17:34:59 kaveri kernel: [ 567.429304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 27 17:34:59 kaveri kernel: [ 567.429306] CR2: 00007ff00cee6a90 CR3: 00000003471e6000 CR4: 00000000003406e0 Aug 27 17:34:59 kaveri kernel: [ 567.429307] Call Trace: Aug 27 17:34:59 kaveri kernel: [ 567.429363] amdgpu_vm_move_to_lru_tail+0x128/0x240 [amdgpu] Aug 27 17:34:59 kaveri kernel: [ 567.429420] amdgpu_cs_ioctl+0x967/0x4ba0 [amdgpu] Aug 27 17:34:59 kaveri kernel: [ 567.429433] ? lock_acquire+0x10b/0x330 Aug 27 17:34:59 kaveri kernel: [ 567.429487] ? amdgpu_cs_find_mapping+0x3c0/0x3c0 [amdgpu] Aug 27 17:34:59 kaveri kernel: [ 567.429491] ? _raw_spin_unlock_irq+0x29/0x40 Aug 27 17:34:59 kaveri kernel: [ 567.429499] ? __lock_acquire+0x605/0x3670 Aug 27 17:34:59 kaveri kernel: [ 567.429502] ? finish_task_switch+0x18e/0x670 Aug 27 17:34:59 kaveri kernel: [ 567.429509] ? __schedule+0x80b/0x1be0 Aug 27 17:34:59 kaveri kernel: [ 567.429520] ? debug_check_no_locks_freed+0x2c0/0x2c0 Aug 27 17:34:59 kaveri kernel: [ 567.429607] ? amdgpu_cs_find_mapping+0x3c0/0x3c0 [amdgpu] Aug 27 17:34:59 kaveri kernel: [ 567.429627] drm_ioctl_kernel+0x197/0x220 [drm] Aug 27 17:34:59 kaveri kernel: [ 567.429644] ? drm_setversion+0x800/0x800 [drm] Aug 27 17:34:59 kaveri kernel: [ 567.429652] ? __check_object_size+0x149/0x360 Aug 27 17:34:59 kaveri kernel: [ 567.429671] drm_ioctl+0x40e/0x860 [drm] Aug 27 17:34:59 kaveri kernel: [ 567.429727] ? amdgpu_cs_find_mapping+0x3c0/0x3c0 [amdgpu] Aug 27 17:34:59 kaveri kernel: [ 567.429744] ? drm_version+0x390/0x390 [drm] Aug 27 17:34:59 kaveri kernel: [ 567.429756] ? lock_downgrade+0x5e0/0x5e0 Aug 27 17:34:59 kaveri kernel: [ 567.429763] ? _raw_spin_unlock_irqrestore+0x32/0x60 Aug 27 17:34:59 kaveri kernel: [ 567.429769] ? trace_hardirqs_on_caller+0x381/0x570 Aug 27 17:34:59 kaveri kernel: [ 567.429821] amdgpu_drm_ioctl+0xcc/0x1b0 [amdgpu] Aug 27 17:34:59 kaveri kernel: [ 567.429829] do_vfs_ioctl+0x192/0xf30 Aug 27 17:34:59 kaveri kernel: [ 567.429835] ? find_held_lock+0x32/0x1c0 Aug 27 17:34:59 kaveri kernel: [ 567.429841] ? ioctl_preallocate+0x1b0/0x1b0 Aug 27 17:34:59 kaveri kernel: [ 567.429847] ? __fget+0x1c8/0x300 Aug 27 17:34:59 kaveri kernel: [ 567.429852] ? lock_downgrade+0x5e0/0x5e0 Aug 27 17:34:59 kaveri kernel: [ 567.429864] ? __fget+0x1e0/0x300 Aug 27 17:34:59 kaveri kernel: [ 567.429876] ksys_ioctl+0x70/0x80 Aug 27 17:34:59 kaveri kernel: [ 567.429882] __x64_sys_ioctl+0x6f/0xb0 Aug 27 17:34:59 kaveri kernel: [ 567.429885] ? trace_hardirqs_on_caller+0x381/0x570 Aug 27 17:34:59 kaveri kernel: [ 567.429889] do_syscall_64+0xa5/0x3f0 Aug 27 17:34:59 kaveri kernel: [ 567.429895] entry_SYSCALL_64_after_hwframe+0x49/0xbe Aug 27 17:34:59 kaveri kernel: [ 567.429897] RIP: 0033:0x7ff037449067 Aug 27 17:34:59 kaveri kernel: [ 567.429899] Code: b3 66 90 48 8b 05 21 7e 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d f1 7d 0c 00 f7 d8 64 89 01 48 Aug 27 17:34:59 kaveri kernel: [ 567.429991] RSP: 002b:00007ff030b2cbb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Aug 27 17:34:59 kaveri kernel: [ 567.429996] RAX: ffffffffffffffda RBX: 00007ff030b2cd28 RCX: 00007ff037449067 Aug 27 17:34:59 kaveri kernel: [ 567.429998] RDX: 00007ff030b2cc30 RSI: 00000000c0186444 RDI: 0000000000000006 Aug 27 17:34:59 kaveri kernel: [ 567.430000] RBP: 00007ff030b2cbe0 R08: 00007ff030b2cd80 R09: 00007ff030b2cd28 Aug 27 17:34:59 kaveri kernel: [ 567.430002] R10: 00007ff030b2cd80 R11: 0000000000000246 R12: 00007ff030b2cc30 Aug 27 17:34:59 kaveri kernel: [ 567.430004] R13: 00000000c0186444 R14: 0000000000000006 R15: 00005594f4e417d8 Aug 27 17:34:59 kaveri kernel: [ 567.430019] irq event stamp: 5909674 Aug 27 17:34:59 kaveri kernel: [ 567.430022] hardirqs last enabled at (5909673): [<ffffffff85a00a60>] restore_regs_and_return_to_kernel+0x0/0x30 Aug 27 17:34:59 kaveri kernel: [ 567.430025] hardirqs last disabled at (5909674): [<ffffffff85a011ef>] error_entry+0x7f/0x100 Aug 27 17:34:59 kaveri kernel: [ 567.430028] softirqs last enabled at (5909646): [<ffffffff85c00620>] __do_softirq+0x620/0x919 Aug 27 17:34:59 kaveri kernel: [ 567.430031] softirqs last disabled at (5909575): [<ffffffff8433443e>] irq_exit+0x19e/0x1d0 Aug 27 17:34:59 kaveri kernel: [ 567.430033] ---[ end trace 701de91db5737054 ]--- Aug 27 17:34:59 kaveri kernel: [ 567.430087] WARNING: CPU: 7 PID: 12214 at drivers/gpu/drm//ttm/ttm_bo.c:166 ttm_bo_add_to_lru+0x2ec/0x580 [ttm] Aug 27 17:34:59 kaveri kernel: [ 567.430091] Modules linked in: fuse(E) lz4(E) lz4_compress(E) amdkfd(OE) amdgpu(OE) cpufreq_powersave(E) cpufreq_userspace(E) cpufreq_conservative(E) chash(OE) gpu_sched(OE) binfmt_misc(E) nls_ascii(E) nls_cp437(E) vfat(E) edac_mce_amd(E) fat(E) kvm(E) irqbypass(E) crct10dif_pclmul(E) crc32_pclmul(E) ghash_clmulni_intel(E) pcbc(E) radeon(OE) snd_hda_codec_realtek(E) snd_hda_codec_generic(E) snd_hda_codec_hdmi(E) ttm(OE) snd_hda_intel(E) wmi_bmof(E) aesni_intel(E) efi_pstore(E) aes_x86_64(E) crypto_simd(E) drm_kms_helper(OE) cryptd(E) glue_helper(E) pcspkr(E) efivars(E) snd_hda_codec(E) k10temp(E) drm(OE) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) snd_timer(E) i2c_algo_bit(E) fb_sys_fops(E) r8169(E) sp5100_tco(E) syscopyarea(E) snd(E) sysfillrect(E) ccp(E) sg(E) mii(E) sysimgblt(E) soundcore(E) i2c_piix4(E) Aug 27 17:34:59 kaveri kernel: [ 567.430250] rng_core(E) wmi(E) button(E) acpi_cpufreq(E) tcp_bbr(E) sch_fq(E) sunrpc(E) nct6775(E) hwmon_vid(E) efivarfs(E) ip_tables(E) x_tables(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) libahci(E) xhci_pci(E) libata(E) xhci_hcd(E) crc32c_intel(E) scsi_mod(E) usbcore(E) gpio_amdpt(E) gpio_generic(E) Aug 27 17:34:59 kaveri kernel: [ 567.430329] CPU: 7 PID: 12214 Comm: shader_run:cs0 Tainted: G W OE 4.18.0-rc1+ #111 Aug 27 17:34:59 kaveri kernel: [ 567.430333] Hardware name: Micro-Star International Co., Ltd. MS-7A34/B350 TOMAHAWK (MS-7A34), BIOS 1.80 09/13/2017 Aug 27 17:34:59 kaveri kernel: [ 567.430341] RIP: 0010:ttm_bo_add_to_lru+0x2ec/0x580 [ttm] Aug 27 17:34:59 kaveri kernel: [ 567.430345] Code: c1 ea 03 80 3c 02 00 0f 85 ab 01 00 00 48 8b 83 e8 01 00 00 be ff ff ff ff 48 8d 78 60 e8 2c 3b 1e c3 85 c0 0f 85 87 fd ff ff <0f> 0b e9 80 fd ff ff 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 10 Aug 27 17:34:59 kaveri kernel: [ 567.430487] RSP: 0018:ffff8803e6aa7660 EFLAGS: 00010246 Aug 27 17:34:59 kaveri kernel: [ 567.430491] RAX: 0000000000000000 RBX: ffff8803d7f4aad0 RCX: 0000000000000000 Aug 27 17:34:59 kaveri kernel: [ 567.430493] RDX: 0000000000000000 RSI: ffff8803c61b57a0 RDI: 0000000000000246 Aug 27 17:34:59 kaveri kernel: [ 567.430495] RBP: ffff8803d4c58638 R08: ffffed007cd54ec1 R09: ffffed007cd54ec1 Aug 27 17:34:59 kaveri kernel: [ 567.430497] R10: 0000000000000001 R11: ffffed007cd54ec1 R12: ffff880371902c00 Aug 27 17:34:59 kaveri kernel: [ 567.430499] R13: ffff8803d4c58000 R14: ffff8803d7f4aa80 R15: dffffc0000000000 Aug 27 17:34:59 kaveri kernel: [ 567.430502] FS: 00007ff030b2d700(0000) GS:ffff8803ee1c0000(0000) knlGS:0000000000000000 Aug 27 17:34:59 kaveri kernel: [ 567.430504] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 27 17:34:59 kaveri kernel: [ 567.430506] CR2: 00007ff00cee6a90 CR3: 00000003471e6000 CR4: 00000000003406e0 Aug 27 17:34:59 kaveri kernel: [ 567.430508] Call Trace: Aug 27 17:34:59 kaveri kernel: [ 567.430522] ttm_bo_move_to_lru_tail+0x5e/0x3d0 [ttm] Aug 27 17:34:59 kaveri kernel: [ 567.430580] amdgpu_vm_move_to_lru_tail+0x128/0x240 [amdgpu] Aug 27 17:34:59 kaveri kernel: [ 567.430639] amdgpu_cs_ioctl+0x967/0x4ba0 [amdgpu] Aug 27 17:34:59 kaveri kernel: [ 567.430653] ? lock_acquire+0x10b/0x330 Aug 27 17:34:59 kaveri kernel: [ 567.430709] ? amdgpu_cs_find_mapping+0x3c0/0x3c0 [amdgpu] Aug 27 17:34:59 kaveri kernel: [ 567.430714] ? _raw_spin_unlock_irq+0x29/0x40 Aug 27 17:34:59 kaveri kernel: [ 567.430725] ? __lock_acquire+0x605/0x3670 Aug 27 17:34:59 kaveri kernel: [ 567.430729] ? finish_task_switch+0x18e/0x670 Aug 27 17:34:59 kaveri kernel: [ 567.430739] ? __schedule+0x80b/0x1be0 Aug 27 17:34:59 kaveri kernel: [ 567.430753] ? debug_check_no_locks_freed+0x2c0/0x2c0 Aug 27 17:34:59 kaveri kernel: [ 567.430840] ? amdgpu_cs_find_mapping+0x3c0/0x3c0 [amdgpu] Aug 27 17:34:59 kaveri kernel: [ 567.430858] drm_ioctl_kernel+0x197/0x220 [drm] Aug 27 17:34:59 kaveri kernel: [ 567.430875] ? drm_setversion+0x800/0x800 [drm] Aug 27 17:34:59 kaveri kernel: [ 567.430882] ? __check_object_size+0x149/0x360 Aug 27 17:34:59 kaveri kernel: [ 567.430901] drm_ioctl+0x40e/0x860 [drm] Aug 27 17:34:59 kaveri kernel: [ 567.430957] ? amdgpu_cs_find_mapping+0x3c0/0x3c0 [amdgpu] Aug 27 17:34:59 kaveri kernel: [ 567.430974] ? drm_version+0x390/0x390 [drm] Aug 27 17:34:59 kaveri kernel: [ 567.430987] ? lock_downgrade+0x5e0/0x5e0 Aug 27 17:34:59 kaveri kernel: [ 567.430994] ? _raw_spin_unlock_irqrestore+0x32/0x60 Aug 27 17:34:59 kaveri kernel: [ 567.431000] ? trace_hardirqs_on_caller+0x381/0x570 Aug 27 17:34:59 kaveri kernel: [ 567.431053] amdgpu_drm_ioctl+0xcc/0x1b0 [amdgpu] Aug 27 17:34:59 kaveri kernel: [ 567.431060] do_vfs_ioctl+0x192/0xf30 Aug 27 17:34:59 kaveri kernel: [ 567.431066] ? find_held_lock+0x32/0x1c0 Aug 27 17:34:59 kaveri kernel: [ 567.431070] ? ioctl_preallocate+0x1b0/0x1b0 Aug 27 17:34:59 kaveri kernel: [ 567.431076] ? __fget+0x1c8/0x300 Aug 27 17:34:59 kaveri kernel: [ 567.431082] ? lock_downgrade+0x5e0/0x5e0 Aug 27 17:34:59 kaveri kernel: [ 567.431093] ? __fget+0x1e0/0x300 Aug 27 17:34:59 kaveri kernel: [ 567.431105] ksys_ioctl+0x70/0x80 Aug 27 17:34:59 kaveri kernel: [ 567.431112] __x64_sys_ioctl+0x6f/0xb0 Aug 27 17:34:59 kaveri kernel: [ 567.431116] ? trace_hardirqs_on_caller+0x381/0x570 Aug 27 17:34:59 kaveri kernel: [ 567.431120] do_syscall_64+0xa5/0x3f0 Aug 27 17:34:59 kaveri kernel: [ 567.431126] entry_SYSCALL_64_after_hwframe+0x49/0xbe Aug 27 17:34:59 kaveri kernel: [ 567.431128] RIP: 0033:0x7ff037449067 Aug 27 17:34:59 kaveri kernel: [ 567.431130] Code: b3 66 90 48 8b 05 21 7e 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d f1 7d 0c 00 f7 d8 64 89 01 48 Aug 27 17:34:59 kaveri kernel: [ 567.431223] RSP: 002b:00007ff030b2cbb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Aug 27 17:34:59 kaveri kernel: [ 567.431227] RAX: ffffffffffffffda RBX: 00007ff030b2cd28 RCX: 00007ff037449067 Aug 27 17:34:59 kaveri kernel: [ 567.431229] RDX: 00007ff030b2cc30 RSI: 00000000c0186444 RDI: 0000000000000006 Aug 27 17:34:59 kaveri kernel: [ 567.431231] RBP: 00007ff030b2cbe0 R08: 00007ff030b2cd80 R09: 00007ff030b2cd28 Aug 27 17:34:59 kaveri kernel: [ 567.431234] R10: 00007ff030b2cd80 R11: 0000000000000246 R12: 00007ff030b2cc30 Aug 27 17:34:59 kaveri kernel: [ 567.431236] R13: 00000000c0186444 R14: 0000000000000006 R15: 00005594f4e417d8 Aug 27 17:34:59 kaveri kernel: [ 567.431249] irq event stamp: 5909680 Aug 27 17:34:59 kaveri kernel: [ 567.431253] hardirqs last enabled at (5909679): [<ffffffff85a00a60>] restore_regs_and_return_to_kernel+0x0/0x30 Aug 27 17:34:59 kaveri kernel: [ 567.431256] hardirqs last disabled at (5909680): [<ffffffff85a011ef>] error_entry+0x7f/0x100 Aug 27 17:34:59 kaveri kernel: [ 567.431259] softirqs last enabled at (5909646): [<ffffffff85c00620>] __do_softirq+0x620/0x919 Aug 27 17:34:59 kaveri kernel: [ 567.431262] softirqs last disabled at (5909575): [<ffffffff8433443e>] irq_exit+0x19e/0x1d0 Aug 27 17:34:59 kaveri kernel: [ 567.431264] ---[ end trace 701de91db5737055 ]--- Aug 27 17:36:49 kaveri kernel: [ 677.611767] list_del corruption. prev->next should be ffff8803c92400f8, but was ffff88033cd1f620 Aug 27 17:36:49 kaveri kernel: [ 677.611878] ------------[ cut here ]------------ Aug 27 17:36:49 kaveri kernel: [ 677.611881] kernel BUG at lib/list_debug.c:53! Aug 27 17:36:49 kaveri kernel: [ 677.611894] invalid opcode: 0000 [#1] SMP KASAN NOPTI Aug 27 17:36:49 kaveri kernel: [ 677.611901] CPU: 4 PID: 126 Comm: kworker/4:1 Tainted: G W OE 4.18.0-rc1+ #111 Aug 27 17:36:49 kaveri kernel: [ 677.611905] Hardware name: Micro-Star International Co., Ltd. MS-7A34/B350 TOMAHAWK (MS-7A34), BIOS 1.80 09/13/2017 Aug 27 17:36:49 kaveri kernel: [ 677.611919] Workqueue: events ttm_bo_delayed_workqueue [ttm] Aug 27 17:36:49 kaveri kernel: [ 677.611929] RIP: 0010:__list_del_entry_valid+0xe6/0x150 Aug 27 17:36:49 kaveri kernel: [ 677.611932] Code: 89 ea 48 c7 c7 80 b1 fe 85 e8 df 30 6e ff 0f 0b 48 c7 c7 e0 b1 fe 85 e8 d1 30 6e ff 0f 0b 48 c7 c7 40 b2 fe 85 e8 c3 30 6e ff <0f> 0b 48 c7 c7 a0 b2 fe 85 e8 b5 30 6e ff 0f 0b 48 89 df 48 89 34 Aug 27 17:36:49 kaveri kernel: [ 677.611996] RSP: 0018:ffff8803ea59fc08 EFLAGS: 00010286 Aug 27 17:36:49 kaveri kernel: [ 677.612000] RAX: 0000000000000054 RBX: ffff880371902fd8 RCX: ffffffff84d63612 Aug 27 17:36:49 kaveri kernel: [ 677.612003] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8803ee125a2c Aug 27 17:36:49 kaveri kernel: [ 677.612006] RBP: ffff8803df0255f8 R08: ffffed007dc24e51 R09: ffffed007dc24e51 Aug 27 17:36:49 kaveri kernel: [ 677.612008] R10: 0000000000000001 R11: ffffed007dc24e50 R12: ffff8803c9240100 Aug 27 17:36:49 kaveri kernel: [ 677.612011] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 Aug 27 17:36:49 kaveri kernel: [ 677.612014] FS: 0000000000000000(0000) GS:ffff8803ee100000(0000) knlGS:0000000000000000 Aug 27 17:36:49 kaveri kernel: [ 677.612017] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 27 17:36:49 kaveri kernel: [ 677.612019] CR2: 00007fafc37fdf38 CR3: 000000036a614000 CR4: 00000000003406e0 Aug 27 17:36:49 kaveri kernel: [ 677.612021] Call Trace: Aug 27 17:36:49 kaveri kernel: [ 677.612027] ? lock_acquire+0x10b/0x330 Aug 27 17:36:49 kaveri kernel: [ 677.612035] ttm_bo_del_from_lru+0x17c/0x320 [ttm] Aug 27 17:36:49 kaveri kernel: [ 677.612043] ttm_bo_cleanup_refs+0x14b/0x510 [ttm] Aug 27 17:36:49 kaveri kernel: [ 677.612052] ttm_bo_delayed_delete+0x165/0x570 [ttm] Aug 27 17:36:49 kaveri kernel: [ 677.612060] ? ttm_bo_cleanup_refs+0x510/0x510 [ttm] Aug 27 17:36:49 kaveri kernel: [ 677.612065] ? process_one_work+0x76a/0x16c0 Aug 27 17:36:49 kaveri kernel: [ 677.612074] ttm_bo_delayed_workqueue+0x17/0x60 [ttm] Aug 27 17:36:49 kaveri kernel: [ 677.612078] process_one_work+0x7fd/0x16c0 Aug 27 17:36:49 kaveri kernel: [ 677.612087] ? drain_workqueue+0x380/0x380 Aug 27 17:36:49 kaveri kernel: [ 677.612091] ? lock_acquire+0x10b/0x330 Aug 27 17:36:49 kaveri kernel: [ 677.612102] worker_thread+0x87/0xb50 Aug 27 17:36:49 kaveri kernel: [ 677.612111] ? process_one_work+0x16c0/0x16c0 Aug 27 17:36:49 kaveri kernel: [ 677.612116] kthread+0x2db/0x390 Aug 27 17:36:49 kaveri kernel: [ 677.612120] ? kthread_create_worker_on_cpu+0xc0/0xc0 Aug 27 17:36:49 kaveri kernel: [ 677.612127] ret_from_fork+0x27/0x50 Aug 27 17:36:49 kaveri kernel: [ 677.612137] Modules linked in: fuse(E) lz4(E) lz4_compress(E) amdkfd(OE) amdgpu(OE) cpufreq_powersave(E) cpufreq_userspace(E) cpufreq_conservative(E) chash(OE) gpu_sched(OE) binfmt_misc(E) nls_ascii(E) nls_cp437(E) vfat(E) edac_mce_amd(E) fat(E) kvm(E) irqbypass(E) crct10dif_pclmul(E) crc32_pclmul(E) ghash_clmulni_intel(E) pcbc(E) radeon(OE) snd_hda_codec_realtek(E) snd_hda_codec_generic(E) snd_hda_codec_hdmi(E) ttm(OE) snd_hda_intel(E) wmi_bmof(E) aesni_intel(E) efi_pstore(E) aes_x86_64(E) crypto_simd(E) drm_kms_helper(OE) cryptd(E) glue_helper(E) pcspkr(E) efivars(E) snd_hda_codec(E) k10temp(E) drm(OE) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) snd_timer(E) i2c_algo_bit(E) fb_sys_fops(E) r8169(E) sp5100_tco(E) syscopyarea(E) snd(E) sysfillrect(E) ccp(E) sg(E) mii(E) sysimgblt(E) soundcore(E) i2c_piix4(E) Aug 27 17:36:49 kaveri kernel: [ 677.612230] rng_core(E) wmi(E) button(E) acpi_cpufreq(E) tcp_bbr(E) sch_fq(E) sunrpc(E) nct6775(E) hwmon_vid(E) efivarfs(E) ip_tables(E) x_tables(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) libahci(E) xhci_pci(E) libata(E) xhci_hcd(E) crc32c_intel(E) scsi_mod(E) usbcore(E) gpio_amdpt(E) gpio_generic(E) Aug 27 17:36:49 kaveri kernel: [ 677.612274] ---[ end trace 701de91db5737056 ]--- Aug 27 17:36:49 kaveri kernel: [ 677.612278] RIP: 0010:__list_del_entry_valid+0xe6/0x150 Aug 27 17:36:49 kaveri kernel: [ 677.612280] Code: 89 ea 48 c7 c7 80 b1 fe 85 e8 df 30 6e ff 0f 0b 48 c7 c7 e0 b1 fe 85 e8 d1 30 6e ff 0f 0b 48 c7 c7 40 b2 fe 85 e8 c3 30 6e ff <0f> 0b 48 c7 c7 a0 b2 fe 85 e8 b5 30 6e ff 0f 0b 48 89 df 48 89 34 Aug 27 17:36:49 kaveri kernel: [ 677.612331] RSP: 0018:ffff8803ea59fc08 EFLAGS: 00010286 Aug 27 17:36:49 kaveri kernel: [ 677.612334] RAX: 0000000000000054 RBX: ffff880371902fd8 RCX: ffffffff84d63612 Aug 27 17:36:49 kaveri kernel: [ 677.612336] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8803ee125a2c Aug 27 17:36:49 kaveri kernel: [ 677.612339] RBP: ffff8803df0255f8 R08: ffffed007dc24e51 R09: ffffed007dc24e51 Aug 27 17:36:49 kaveri kernel: [ 677.612341] R10: 0000000000000001 R11: ffffed007dc24e50 R12: ffff8803c9240100 Aug 27 17:36:49 kaveri kernel: [ 677.612343] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 Aug 27 17:36:49 kaveri kernel: [ 677.612346] FS: 0000000000000000(0000) GS:ffff8803ee100000(0000) knlGS:0000000000000000 Aug 27 17:36:49 kaveri kernel: [ 677.612349] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 27 17:36:49 kaveri kernel: [ 677.612351] CR2: 00007fafc37fdf38 CR3: 000000036a614000 CR4: 00000000003406e0 Aug 27 17:37:15 kaveri kernel: [ 703.632630] INFO: rcu_sched self-detected stall on CPU Aug 27 17:37:15 kaveri kernel: [ 703.632632] INFO: rcu_sched self-detected stall on CPU Aug 27 17:37:15 kaveri kernel: [ 703.632634] INFO: rcu_sched self-detected stall on CPU Aug 27 17:37:15 kaveri kernel: [ 703.632645] 10-....: (6500 ticks this GP) idle=74e/1/4611686018427387906 softirq=80088/80088 fqs=2719 Aug 27 17:37:15 kaveri kernel: [ 703.632646] Aug 27 17:37:15 kaveri kernel: [ 703.632650] 9-....: (6500 ticks this GP) idle=5a6/1/4611686018427387906 softirq=76170/76170 fqs=2719 Aug 27 17:37:15 kaveri kernel: [ 703.632653] (t=6500 jiffies g=13087 c=13086 q=2517) Aug 27 17:37:15 kaveri kernel: [ 703.632653] Aug 27 17:37:15 kaveri kernel: [ 703.632656] Sending NMI from CPU 10 to CPUs 9: Aug 27 17:37:15 kaveri kernel: [ 703.633439] (t=6500 jiffies g=13087 c=13086 q=2517) Aug 27 17:37:15 kaveri kernel: [ 703.633654] NMI backtrace for cpu 9 Aug 27 17:37:15 kaveri kernel: [ 703.633655] CPU: 9 PID: 5858 Comm: shader_runner Tainted: G D W OE 4.18.0-rc1+ #111 Aug 27 17:37:15 kaveri kernel: [ 703.633656] Hardware name: Micro-Star International Co., Ltd. MS-7A34/B350 TOMAHAWK (MS-7A34), BIOS 1.80 09/13/2017 Aug 27 17:37:15 kaveri kernel: [ 703.633657] RIP: 0010:__memcpy+0x17/0x20 Aug 27 17:37:15 kaveri kernel: [ 703.633657] Code: f5 fb fe eb 9e e8 69 f5 fb fe e9 75 ff ff ff 90 90 90 90 0f 1f 44 00 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 <f3> a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 f3 a4 c3 0f 1f 80 00 Aug 27 17:37:15 kaveri kernel: [ 703.633675] RSP: 0018:ffff8803ee247b18 EFLAGS: 00000006 Aug 27 17:37:15 kaveri kernel: [ 703.633677] RAX: ffffffff8810db82 RBX: ffff8803ee247b78 RCX: 0000000000000002 Aug 27 17:37:15 kaveri kernel: [ 703.633677] RDX: 0000000000000003 RSI: ffffffff85e8913e RDI: ffffffff8810db83 Aug 27 17:37:15 kaveri kernel: [ 703.633678] RBP: ffffffff8810df40 R08: fffffbfff1021b71 R09: fffffbfff1021b71 Aug 27 17:37:15 kaveri kernel: [ 703.633679] R10: 0000000000000001 R11: fffffbfff1021b70 R12: ffffffff85e8913d Aug 27 17:37:15 kaveri kernel: [ 703.633679] R13: dffffc0000000000 R14: ffffffff85e89140 R15: ffffffff8810db82 Aug 27 17:37:15 kaveri kernel: [ 703.633680] FS: 00007fafe6fd87c0(0000) GS:ffff8803ee240000(0000) knlGS:0000000000000000 Aug 27 17:37:15 kaveri kernel: [ 703.633681] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 27 17:37:15 kaveri kernel: [ 703.633681] CR2: 00007fafc97f9f38 CR3: 0000000337028000 CR4: 00000000003406e0 Aug 27 17:37:15 kaveri kernel: [ 703.633682] Call Trace: Aug 27 17:37:15 kaveri kernel: [ 703.633682] <IRQ> Aug 27 17:37:15 kaveri kernel: [ 703.633683] vsnprintf+0x1ff/0x10a0 Aug 27 17:37:15 kaveri kernel: [ 703.633683] ? pointer+0x660/0x660 Aug 27 17:37:15 kaveri kernel: [ 703.633684] ? native_queued_spin_lock_slowpath+0x179/0x7e0 Aug 27 17:37:15 kaveri kernel: [ 703.633684] vscnprintf+0x9/0x30 Aug 27 17:37:15 kaveri kernel: [ 703.633685] vprintk_emit+0xcb/0x6f0 Aug 27 17:37:15 kaveri kernel: [ 703.633685] printk+0x9c/0xc3 Aug 27 17:37:15 kaveri kernel: [ 703.633685] ? kmsg_dump_rewind_nolock+0xd9/0xd9 Aug 27 17:37:15 kaveri kernel: [ 703.633686] rcu_check_callbacks+0x1016/0x1e50 Aug 27 17:37:15 kaveri kernel: [ 703.633686] update_process_times+0x28/0x50 Aug 27 17:37:15 kaveri kernel: [ 703.633687] tick_sched_handle+0x73/0x160 Aug 27 17:37:15 kaveri kernel: [ 703.633687] tick_sched_timer+0x37/0xf0 Aug 27 17:37:15 kaveri kernel: [ 703.633688] ? tick_sched_do_timer+0x140/0x140 Aug 27 17:37:15 kaveri kernel: [ 703.633688] __hrtimer_run_queues+0x291/0xa20 Aug 27 17:37:15 kaveri kernel: [ 703.633689] ? hrtimer_cancel+0x20/0x20 Aug 27 17:37:15 kaveri kernel: [ 703.633689] ? ktime_get_update_offsets_now+0xed/0x2d0 Aug 27 17:37:15 kaveri kernel: [ 703.633690] hrtimer_interrupt+0x29a/0x770 Aug 27 17:37:15 kaveri kernel: [ 703.633690] ? rcu_nmi_enter+0x60/0x110 Aug 27 17:37:15 kaveri kernel: [ 703.633691] smp_apic_timer_interrupt+0xd5/0x490 Aug 27 17:37:15 kaveri kernel: [ 703.633691] apic_timer_interrupt+0xf/0x20 Aug 27 17:37:15 kaveri kernel: [ 703.633692] </IRQ> Aug 27 17:37:15 kaveri kernel: [ 703.633692] RIP: 0010:native_queued_spin_lock_slowpath+0x290/0x7e0 Aug 27 17:37:15 kaveri kernel: [ 703.633693] Code: fc ff df 49 c1 ef 03 41 83 e5 07 49 01 c7 41 83 c5 03 f3 90 41 0f b6 07 41 38 c5 7c 08 84 c0 0f 85 c3 04 00 00 8b 45 08 85 c0 <74> e6 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 Aug 27 17:37:15 kaveri kernel: [ 703.633711] RSP: 0018:ffff8803c460f600 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 Aug 27 17:37:15 kaveri kernel: [ 703.633712] RAX: 0000000000000000 RBX: ffff8803dc592b50 RCX: ffffffff844475f9 Aug 27 17:37:15 kaveri kernel: [ 703.633713] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8633d780 Aug 27 17:37:15 kaveri kernel: [ 703.633713] RBP: ffff8803ee26b700 R08: ffffed007b8b256b R09: ffffed007b8b256b Aug 27 17:37:15 kaveri kernel: [ 703.633714] R10: 0000000000000001 R11: ffffed007b8b256a R12: 0000000000280000 Aug 27 17:37:15 kaveri kernel: [ 703.633715] R13: 0000000000000003 R14: ffff8803ee26b708 R15: ffffed007dc4d6e1 Aug 27 17:37:15 kaveri kernel: [ 703.633715] ? native_queued_spin_lock_slowpath+0x179/0x7e0 Aug 27 17:37:15 kaveri kernel: [ 703.633716] do_raw_spin_lock+0x160/0x1f0 Aug 27 17:37:15 kaveri kernel: [ 703.633716] amdgpu_bo_do_create+0xc36/0x1030 [amdgpu] Aug 27 17:37:15 kaveri kernel: [ 703.633717] ? deref_stack_reg+0xad/0xe0 Aug 27 17:37:15 kaveri kernel: [ 703.633717] ? amdgpu_bo_placement_from_domain+0x860/0x860 [amdgpu] Aug 27 17:37:15 kaveri kernel: [ 703.633718] ? unwind_next_frame+0xf0f/0x1820 Aug 27 17:37:15 kaveri kernel: [ 703.633718] amdgpu_bo_create+0xa3/0x920 [amdgpu] Aug 27 17:37:15 kaveri kernel: [ 703.633719] ? amdgpu_bo_do_create+0x1030/0x1030 [amdgpu] Aug 27 17:37:15 kaveri kernel: [ 703.633719] ? alloc_pid+0x48/0x770 Aug 27 17:37:15 kaveri kernel: [ 703.633720] ? is_bpf_text_address+0x78/0xe0 Aug 27 17:37:15 kaveri kernel: [ 703.633721] ? kernel_text_address+0x111/0x120 Aug 27 17:37:15 kaveri kernel: [ 703.633721] amdgpu_gem_object_create+0x140/0x240 [amdgpu] Aug 27 17:37:15 kaveri kernel: [ 703.633722] ? amdgpu_gem_object_free+0xa0/0xa0 [amdgpu] Aug 27 17:37:15 kaveri kernel: [ 703.633722] ? debug_check_no_locks_freed+0x2c0/0x2c0 Aug 27 17:37:15 kaveri kernel: [ 703.633723] ? save_stack+0x89/0xb0 Aug 27 17:37:15 kaveri kernel: [ 703.633723] ? drm_dev_enter+0x5/0xf0 [drm] Aug 27 17:37:15 kaveri kernel: [ 703.633724] amdgpu_gem_create_ioctl+0x4ef/0x800 [amdgpu] Aug 27 17:37:15 kaveri kernel: [ 703.633724] ? amdgpu_gem_object_close+0x420/0x420 [amdgpu] Aug 27 17:37:15 kaveri kernel: [ 703.633725] ? drm_dev_exit+0x5/0x30 [drm] Aug 27 17:37:15 kaveri kernel: [ 703.633725] ? lock_acquire+0x10b/0x330 Aug 27 17:37:15 kaveri kernel: [ 703.633726] ? lock_downgrade+0x5e0/0x5e0 Aug 27 17:37:15 kaveri kernel: [ 703.633726] ? amdgpu_gem_object_close+0x420/0x420 [amdgpu] Aug 27 17:37:15 kaveri kernel: [ 703.633727] drm_ioctl_kernel+0x197/0x220 [drm] Aug 27 17:37:15 kaveri kernel: [ 703.633727] ? drm_setversion+0x800/0x800 [drm] Aug 27 17:37:15 kaveri kernel: [ 703.633728] ? __check_object_size+0x149/0x360 Aug 27 17:37:15 kaveri kernel: [ 703.633728] drm_ioctl+0x40e/0x860 [drm] Aug 27 17:37:15 kaveri kernel: [ 703.633729] ? amdgpu_gem_object_close+0x420/0x420 [amdgpu] Aug 27 17:37:15 kaveri kernel: [ 703.633729] ? drm_version+0x390/0x390 [drm] Aug 27 17:37:15 kaveri kernel: [ 703.633730] ? lock_downgrade+0x5e0/0x5e0 Aug 27 17:37:15 kaveri kernel: [ 703.633730] ? __pm_runtime_resume+0x79/0x100 Aug 27 17:37:15 kaveri kernel: [ 703.633731] ? debug_check_no_locks_freed+0x2c0/0x2c0 Aug 27 17:37:15 kaveri kernel: [ 703.633731] ? do_raw_spin_unlock+0x54/0x220 Aug 27 17:37:15 kaveri kernel: [ 703.633732] amdgpu_drm_ioctl+0xcc/0x1b0 [amdgpu] Aug 27 17:37:15 kaveri kernel: [ 703.633732] do_vfs_ioctl+0x192/0xf30 Aug 27 17:37:15 kaveri kernel: [ 703.633733] ? cpu_cgroup_fork+0x120/0x120 Aug 27 17:37:15 kaveri kernel: [ 703.633733] ? wake_up_new_task+0x645/0xb10 Aug 27 17:37:15 kaveri kernel: [ 703.633734] ? ioctl_preallocate+0x1b0/0x1b0 Aug 27 17:37:15 kaveri kernel: [ 703.633734] ? __fget+0x1c8/0x300 Aug 27 17:37:15 kaveri kernel: [ 703.633735] ? lock_downgrade+0x5e0/0x5e0 Aug 27 17:37:15 kaveri kernel: [ 703.633735] ? __fget+0x49/0x300 Aug 27 17:37:15 kaveri kernel: [ 703.633736] ? lock_downgrade+0x5e0/0x5e0 Aug 27 17:37:15 kaveri kernel: [ 703.633736] ? __fget+0x1e0/0x300 Aug 27 17:37:15 kaveri kernel: [ 703.633737] ksys_ioctl+0x70/0x80 Aug 27 17:37:15 kaveri kernel: [ 703.633737] __x64_sys_ioctl+0x6f/0xb0 Aug 27 17:37:15 kaveri kernel: [ 703.633737] do_syscall_64+0xa5/0x3f0 Aug 27 17:37:15 kaveri kernel: [ 703.633738] entry_SYSCALL_64_after_hwframe+0x49/0xbe Aug 27 17:37:15 kaveri kernel: [ 703.633738] RIP: 0033:0x7fafe8f46067 Aug 27 17:37:15 kaveri kernel: [ 703.633739] Code: b3 66 90 48 8b 05 21 7e 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d f1 7d 0c 00 f7 d8 64 89 01 48 Aug 27 17:37:15 kaveri kernel: [ 703.633757] RSP: 002b:00007fffc739b858 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Aug 27 17:37:15 kaveri kernel: [ 703.633758] RAX: ffffffffffffffda RBX: 00007fffc739b940 RCX: 00007fafe8f46067 Aug 27 17:37:15 kaveri kernel: [ 703.633759] RDX: 00007fffc739b8b0 RSI: 00000000c0206440 RDI: 0000000000000006 Aug 27 17:37:15 kaveri kernel: [ 703.633759] RBP: 00007fffc739b880 R08: 000055919dcce650 R09: 0000000000000004 Aug 27 17:37:15 kaveri kernel: [ 703.633760] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffc739b8b0 Aug 27 17:37:15 kaveri kernel: [ 703.633761] R13: 00000000c0206440 R14: 0000000000000006 R15: 000055919dcce650 Aug 27 17:37:15 kaveri kernel: [ 703.633763] NMI backtrace for cpu 10 Aug 27 17:37:15 kaveri kernel: [ 703.633863] CPU: 10 PID: 5853 Comm: shader_runner Tainted: G D W OE 4.18.0-rc1+ #111 Aug 27 17:37:15 kaveri kernel: [ 703.633865] Hardware name: Micro-Star International Co., Ltd. MS-7A34/B350 TOMAHAWK (MS-7A34), BIOS 1.80 09/13/2017 Aug 27 17:37:15 kaveri kernel: [ 703.633867] Call Trace: Aug 27 17:37:15 kaveri kernel: [ 703.633870] <IRQ> Aug 27 17:37:15 kaveri kernel: [ 703.633875] dump_stack+0x9a/0xeb Aug 27 17:37:15 kaveri kernel: [ 703.633880] nmi_cpu_backtrace+0x126/0x140 Aug 27 17:37:15 kaveri kernel: [ 703.633884] ? lapic_can_unplug_cpu+0xa0/0xa0 Aug 27 17:37:15 kaveri kernel: [ 703.633888] nmi_trigger_cpumask_backtrace+0xb9/0xf0 Aug 27 17:37:15 kaveri kernel: [ 703.633892] rcu_dump_cpu_stacks+0x18b/0x1d9 Aug 27 17:37:15 kaveri kernel: [ 703.633897] rcu_check_callbacks+0x1026/0x1e50 Aug 27 17:37:15 kaveri kernel: [ 703.633905] update_process_times+0x28/0x50 Aug 27 17:37:15 kaveri kernel: [ 703.633908] tick_sched_handle+0x73/0x160 Aug 27 17:37:15 kaveri kernel: [ 703.633912] tick_sched_timer+0x37/0xf0 Aug 27 17:37:15 kaveri kernel: [ 703.633915] ? tick_sched_do_timer+0x140/0x140 Aug 27 17:37:15 kaveri kernel: [ 703.633918] __hrtimer_run_queues+0x291/0xa20 Aug 27 17:37:15 kaveri kernel: [ 703.633924] ? hrtimer_cancel+0x20/0x20 Aug 27 17:37:15 kaveri kernel: [ 703.633927] ? ktime_get_update_offsets_now+0xed/0x2d0 Aug 27 17:37:15 kaveri kernel: [ 703.633932] hrtimer_interrupt+0x29a/0x770 Aug 27 17:37:15 kaveri kernel: [ 703.633937] ? rcu_nmi_enter+0x60/0x110 Aug 27 17:37:15 kaveri kernel: [ 703.633941] smp_apic_timer_interrupt+0xd5/0x490 Aug 27 17:37:15 kaveri kernel: [ 703.633945] apic_timer_interrupt+0xf/0x20 Aug 27 17:37:15 kaveri kernel: [ 703.633948] </IRQ>
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