<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [GP107] failed to create kernel channel, -22" href="https://bugs.freedesktop.org/show_bug.cgi?id=101553#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [GP107] failed to create kernel channel, -22" href="https://bugs.freedesktop.org/show_bug.cgi?id=101553">bug 101553</a> from <a class="email" href="mailto:anton.kochkov@gmail.com" title="Anton Kochkov <anton.kochkov@gmail.com>"> Anton Kochkov</a> <pre>Created <a href="attachment.cgi?id=132139" name="attach_132139" title="full dmesg of linux kernel 4.12_rc0">attachment 132139</a> <a href="attachment.cgi?id=132139&action=edit" title="full dmesg of linux kernel 4.12_rc0">[details]</a> full dmesg of linux kernel 4.12_rc0 Here is the full stack trace, as promised (for linux kernel 4.12_rc6). Basically I booted, then run "startx" (It also prevents from finishing poweroff command - it goes into this loop again): [ 218.489759] nouveau 0000:01:00.0: Refused to change power state, currently in D3 [ 218.550481] nouveau 0000:01:00.0: Refused to change power state, currently in D3 [ 218.550485] nouveau 0000:01:00.0: Refused to change power state, currently in D3 [ 218.550486] nouveau 0000:01:00.0: DRM: resuming object tree... [ 244.355333] NMI watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [X:2912] [ 244.355370] Modules linked in: ctr ccm 8021q garp stp llc arc4 snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel ath10k_pci iTCO_wdt x86_pkg_temp_thermal dell_laptop nouveau iTCO_vendor_support i915 ath10k_core snd_hda_codec coretemp dell_smm_hwmon snd_hda_core ttm ath uvcvideo iosf_mbi efi_pstore btusb kvm_intel snd_hwdep drm_kms_helper mac80211 btrtl videobuf2_vmalloc kvm btbcm btintel videobuf2_memops irqbypass videobuf2_v4l2 bluetooth videobuf2_core crc32c_intel videodev drm ecdh_generic cfg80211 snd_pcm ghash_clmulni_intel cryptd snd_timer dell_wmi syscopyarea serio_raw efivars sparse_keymap sysfillrect snd rfkill pcspkr sysimgblt soundcore dell_smbios i2c_i801 fb_sys_fops dcdbas mxm_wmi video wmi dell_smo8800 efivarfs xts cbc libiscsi scsi_transport_iscsi ixgb ixgbe [ 244.355409] tulip cxgb3 cxgb mdio cxgb4 vxge bonding vxlan ip6_udp_tunnel udp_tunnel macvlan vmxnet3 virtio_net virtio_ring virtio tg3 sky2 r8169 pcnet32 mii igb ptp pps_core i2c_algo_bit i2c_core e1000 bnx2 atl1c fuse xfs nfs lockd grace sunrpc fscache jfs reiserfs btrfs ext4 jbd2 ext2 mbcache linear raid10 raid1 raid0 dm_raid raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c dm_snapshot dm_bufio dm_crypt dm_mirror dm_region_hash dm_log dm_mod dax firewire_core crc_itu_t sl811_hcd xhci_pci xhci_hcd usb_storage mpt3sas raid_class aic94xx libsas lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm aacraid sx8 hpsa cciss 3w_9xxx 3w_xxxx 3w_sas mptsas scsi_transport_sas mptfc scsi_transport_fc mptspi mptscsih mptbase imm parport sym53c8xx initio arcmsr aic7xxx [ 244.355441] aic79xx scsi_transport_spi sr_mod cdrom sg sd_mod pdc_adma sata_inic162x sata_mv ata_piix ahci libahci sata_qstor sata_vsc sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil sata_promise pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_pdc202xx_old pata_atiixp pata_amd pata_ali pata_it8213 pata_pcmcia pata_serverworks pata_oldpiix pata_artop pata_it821x pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366 pata_cmd64x pata_sil680 pata_pdc2027x [ 244.355455] CPU: 5 PID: 2912 Comm: X Not tainted 4.12.0-rc6 #1 [ 244.355455] Hardware name: Dell Inc. XPS 15 9560/05FFDN, BIOS 1.3.3 05/08/2017 [ 244.355456] task: ffff880460489740 task.stack: ffffc900014ac000 [ 244.355458] RIP: 0010:ioread32+0x30/0x40 [ 244.355459] RSP: 0018:ffffc900014af7b0 EFLAGS: 00000296 ORIG_RAX: ffffffffffffff10 [ 244.355460] RAX: 00000000ffffffff RBX: ffff88046ade4400 RCX: 0000000000000018 [ 244.355460] RDX: 0000035261a613f8 RSI: ffffc9000410a014 RDI: ffffc90004009410 [ 244.355461] RBP: ffffc900014af7d0 R08: 0000000000000002 R09: ffffc900014af7ac [ 244.355461] R10: 0000000000000000 R11: 00000000000003bd R12: 00000000ffffffff [ 244.355462] R13: 00000000ffffffff R14: ffffffffffffffff R15: ffff8804669c20c0 [ 244.355462] FS: 00007fd8c47b18c0(0000) GS:ffff88047f540000(0000) knlGS:0000000000000000 [ 244.355463] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 244.355463] CR2: 00007ffc6e3e8f4c CR3: 0000000468ff6000 CR4: 00000000003406e0 [ 244.355464] Call Trace: [ 244.355486] ? nv04_timer_read+0x48/0x60 [nouveau] [ 244.355502] nvkm_timer_read+0xf/0x20 [nouveau] [ 244.355517] nvkm_pmu_reset+0x71/0x170 [nouveau] [ 244.355531] nvkm_pmu_preinit+0x12/0x20 [nouveau] [ 244.355540] nvkm_subdev_preinit+0x34/0x110 [nouveau] [ 244.355556] nvkm_device_init+0x62/0x280 [nouveau] [ 244.355571] nvkm_udevice_init+0x48/0x60 [nouveau] [ 244.355580] nvkm_object_init+0x40/0x190 [nouveau] [ 244.355589] nvkm_object_init+0xb4/0x190 [nouveau] [ 244.355605] nvkm_client_resume+0xe/0x10 [nouveau] [ 244.355613] nvif_client_resume+0x17/0x20 [nouveau] [ 244.355628] nouveau_do_resume+0x40/0xe0 [nouveau] [ 244.355643] nouveau_pmops_runtime_resume+0x91/0x170 [nouveau] [ 244.355645] pci_pm_runtime_resume+0x7b/0xa0 [ 244.355646] ? pci_restore_standard_config+0x40/0x40 [ 244.355647] __rpm_callback+0xc1/0x1f0 [ 244.355647] rpm_callback+0x24/0x80 [ 244.355648] ? pci_restore_standard_config+0x40/0x40 [ 244.355649] rpm_resume+0x4ac/0x6c0 [ 244.355650] __pm_runtime_resume+0x4e/0x80 [ 244.355664] nouveau_drm_open+0x3d/0x1c0 [nouveau] [ 244.355665] ? selinux_capable+0x20/0x30 [ 244.355667] ? security_capable+0x48/0x60 [ 244.355672] drm_open+0x213/0x420 [drm] [ 244.355677] drm_stub_open+0xbb/0xf0 [drm] [ 244.355678] chrdev_open+0xa1/0x170 [ 244.355679] do_dentry_open+0x205/0x300 [ 244.355680] ? cdev_put+0x30/0x30 [ 244.355680] vfs_open+0x4e/0x80 [ 244.355682] do_last+0x436/0x10a0 [ 244.355683] ? security_inode_permission+0x41/0x60 [ 244.355684] ? __inode_permission+0x3f/0xb0 [ 244.355685] ? path_init+0x1bf/0x300 [ 244.355686] path_openat+0x91/0x2e0 [ 244.355687] do_filp_open+0x8a/0xf0 [ 244.355689] ? _cond_resched+0x5/0x40 [ 244.355690] ? _cond_resched+0x5/0x40 [ 244.355691] ? getname_flags+0x4f/0x1f0 [ 244.355691] ? __alloc_fd+0x3f/0x170 [ 244.355692] do_sys_open+0x12f/0x200 [ 244.355693] ? do_filp_open+0x5/0xf0 [ 244.355694] ? do_sys_open+0x12f/0x200 [ 244.355695] SyS_open+0x1e/0x20 [ 244.355696] entry_SYSCALL_64_fastpath+0x1c/0xac [ 244.355696] RIP: 0033:0x7fd8c2945740 [ 244.355697] RSP: 002b:00007ffc6e3eda08 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 244.355698] RAX: ffffffffffffffda RBX: 0000000001104f80 RCX: 00007fd8c2945740 [ 244.355698] RDX: 0000000000080000 RSI: 0000000000000002 RDI: 0000000001105050 [ 244.355698] RBP: 00007fd8c292c420 R08: 0000000000000031 R09: 0000000000000031 [ 244.355699] R10: 00000000010f79c0 R11: 0000000000000246 R12: 0000000000000000 [ 244.355699] R13: 0000000001104a90 R14: 00007ffc6e3e95e2 R15: 00007ffc6e3e91e0 [ 244.355700] Code: 03 00 77 25 48 81 ff 00 00 01 00 76 05 0f b7 d7 ed c3 55 48 c7 c6 28 85 a2 81 48 89 e5 e8 29 ff ff ff b8 ff ff ff ff 5d c3 8b 07 <c3> 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 81 fe ff ff [ 254.205333] INFO: rcu_sched self-detected stall on CPU [ 254.205335] 5-...: (20999 ticks this GP) idle=766/140000000000001/0 softirq=2096/2096 fqs=5239 [ 254.205335] (t=21000 jiffies g=1139 c=1138 q=2) [ 254.205337] NMI backtrace for cpu 5 [ 254.205338] CPU: 5 PID: 2912 Comm: X Tainted: G L 4.12.0-rc6 #1 [ 254.205338] Hardware name: Dell Inc. XPS 15 9560/05FFDN, BIOS 1.3.3 05/08/2017 [ 254.205338] Call Trace: [ 254.205339] <IRQ> [ 254.205341] dump_stack+0x68/0x92 [ 254.205342] nmi_cpu_backtrace+0x94/0xa0 [ 254.205343] ? irq_force_complete_move+0x140/0x140 [ 254.205364] nmi_trigger_cpumask_backtrace+0xd9/0x110 [ 254.205365] arch_trigger_cpumask_backtrace+0x19/0x20 [ 254.205367] rcu_dump_cpu_stacks+0xa5/0xdf [ 254.205368] rcu_check_callbacks+0x755/0x8b0 [ 254.205370] ? tick_sched_handle.isra.7+0x50/0x50 [ 254.205371] update_process_times+0x2f/0x60 [ 254.205372] tick_sched_handle.isra.7+0x21/0x50 [ 254.205373] tick_sched_timer+0x42/0x70 [ 254.205374] __hrtimer_run_queues+0xd1/0x1f0 [ 254.205375] hrtimer_interrupt+0xa3/0x1d0 [ 254.205377] local_apic_timer_interrupt+0x38/0x60 [ 254.205378] smp_apic_timer_interrupt+0x38/0x50 [ 254.205379] apic_timer_interrupt+0x90/0xa0</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>