Jun 17 11:07:21 ph4 kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 Jun 17 11:07:21 ph4 kernel: IP: [] fence_wait_timeout+0x38/0x180 Jun 17 11:07:21 ph4 kernel: PGD 0 Jun 17 11:07:21 ph4 kernel: Oops: 0000 [#1] PREEMPT SMP Jun 17 11:07:21 ph4 kernel: Modules linked in: radeon snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel fbcon bitblit snd_hda_controller fbcon_rotate snd_hda_codec fbcon_ccw fbcon_ud fbcon_cw softcursor font tileblit snd_usb_audio snd_hda_core i2c_algo_bit drm_kms_helper snd_usbmidi_lib ttm snd_rawmidi snd_seq_device snd_hwdep r8169 snd_pcm drm ata_generic pata_acpi snd_timer xhci_pci snd xhci_hcd plusb usbnet k10temp mii pata_jmicron soundcore pcspkr acpi_cpufreq asus_atk0110 i2c_piix4 Jun 17 11:07:21 ph4 kernel: CPU: 1 PID: 728 Comm: mplayer Not tainted 4.1.0-rc2-g01d333c-dirty #1 Jun 17 11:07:21 ph4 kernel: Hardware name: System manufacturer System Product Name/M4A89GTD-PRO/USB3, BIOS 1456 05/04/2010 Jun 17 11:07:21 ph4 kernel: task: ffff880220e96180 ti: ffff880223578000 task.ti: ffff880223578000 Jun 17 11:07:21 ph4 kernel: RIP: 0010:[] [] fence_wait_timeout+0x38/0x180 Jun 17 11:07:21 ph4 kernel: RSP: 0018:ffff88022357ba48 EFLAGS: 00010246 Jun 17 11:07:21 ph4 kernel: RAX: 0000000000000000 RBX: ffff880223708000 RCX: 0000000000000000 Jun 17 11:07:21 ph4 kernel: RDX: 7fffffffffffffff RSI: 0000000000000001 RDI: ffff8802217d8240 Jun 17 11:07:21 ph4 kernel: RBP: ffff88022357ba68 R08: ffff8800b6001800 R09: ffffea00033a74c0 Jun 17 11:07:21 ph4 kernel: R10: ffffffffa0402491 R11: 0000000000010002 R12: ffff8802217d8240 Jun 17 11:07:21 ph4 kernel: R13: 0000000000000001 R14: 7fffffffffffffff R15: 000000000000000e Jun 17 11:07:21 ph4 kernel: FS: 00007fe74ab9a700(0000) GS:ffff88022fc40000(0000) knlGS:0000000000000000 Jun 17 11:07:21 ph4 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jun 17 11:07:21 ph4 kernel: CR2: 0000000000000020 CR3: 000000022107a000 CR4: 00000000000006e0 Jun 17 11:07:21 ph4 kernel: Stack: Jun 17 11:07:21 ph4 kernel: ffff880223708000 ffff8802217e0df0 ffff88022357bbd0 0000000000000000 Jun 17 11:07:21 ph4 kernel: ffff88022357baa8 ffffffffa045cf1c ffff88022357ba98 ffff88022357e800 Jun 17 11:07:21 ph4 kernel: ffff88022357bb58 ffff88022357bbd0 ffff88022357bb10 000000000000000e Jun 17 11:07:21 ph4 kernel: Call Trace: Jun 17 11:07:21 ph4 kernel: [] radeon_sync_resv+0x4c/0x130 [radeon] Jun 17 11:07:21 ph4 kernel: [] radeon_cs_sync_rings+0x4f/0x70 [radeon] Jun 17 11:07:21 ph4 kernel: [] radeon_cs_ioctl+0x70b/0x7b0 [radeon] Jun 17 11:07:21 ph4 kernel: [] drm_ioctl+0x1a5/0x660 [drm] Jun 17 11:07:21 ph4 kernel: [] ? futex_wake+0x6c/0x130 Jun 17 11:07:21 ph4 kernel: [] ? get_parent_ip+0x11/0x50 Jun 17 11:07:21 ph4 kernel: [] ? preempt_count_add+0x55/0xb0 Jun 17 11:07:21 ph4 kernel: [] ? _raw_spin_unlock_irqrestore+0x13/0x30 Jun 17 11:07:21 ph4 kernel: [] radeon_drm_ioctl+0x54/0x90 [radeon] Jun 17 11:07:21 ph4 kernel: [] do_vfs_ioctl+0x2e0/0x4f0 Jun 17 11:07:21 ph4 kernel: [] ? __fget+0x74/0xb0 Jun 17 11:07:21 ph4 kernel: [] SyS_ioctl+0x47/0x90 Jun 17 11:07:21 ph4 kernel: [] system_call_fastpath+0x16/0x6e Jun 17 11:07:21 ph4 kernel: Code: 55 41 54 53 0f 88 39 01 00 00 49 89 fc 74 44 8b 05 06 00 72 00 41 89 f5 85 c0 7f 7f 49 8b 44 24 08 41 0f b6 f5 4c 89 f2 4c 89 e7 50 20 49 89 c5 8b 05 a4 ff 71 00 85 c0 0f 8f 9c 00 00 00 4c Jun 17 11:07:21 ph4 kernel: RIP [] fence_wait_timeout+0x38/0x180 Jun 17 11:07:21 ph4 kernel: RSP Jun 17 11:07:21 ph4 kernel: CR2: 0000000000000020 Jun 17 11:07:21 ph4 kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 Jun 17 11:07:21 ph4 kernel: IP: [] ttm_bo_wait+0x114/0x170 [ttm] Jun 17 11:07:21 ph4 kernel: PGD 0 Jun 17 11:07:21 ph4 kernel: ---[ end trace a1c2f033ad2fbf86 ]--- Jun 17 11:07:21 ph4 kernel: Oops: 0000 [#2] PREEMPT SMP Jun 17 11:07:21 ph4 kernel: Modules linked in: radeon snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel fbcon bitblit snd_hda_controller fbcon_rotate snd_hda_codec fbcon_ccw fbcon_ud fbcon_cw softcursor font tileblit snd_usb_audio snd_hda_core i2c_algo_bit drm_kms_helper snd_usbmidi_lib ttm snd_rawmidi snd_seq_device snd_hwdep r8169 snd_pcm drm ata_generic pata_acpi snd_timer xhci_pci snd xhci_hcd plusb usbnet k10temp mii pata_jmicron soundcore pcspkr acpi_cpufreq asus_atk0110 i2c_piix4 Jun 17 11:07:21 ph4 kernel: CPU: 1 PID: 89 Comm: kworker/1:2 Tainted: G D 4.1.0-rc2-g01d333c-dirty #1 Jun 17 11:07:21 ph4 kernel: Hardware name: System manufacturer System Product Name/M4A89GTD-PRO/USB3, BIOS 1456 05/04/2010 Jun 17 11:07:21 ph4 kernel: Workqueue: events ttm_bo_delayed_workqueue [ttm] Jun 17 11:07:21 ph4 kernel: task: ffff880225bb9860 ti: ffff880225bc4000 task.ti: ffff880225bc4000 Jun 17 11:07:21 ph4 kernel: RIP: 0010:[] [] ttm_bo_wait+0x114/0x170 [ttm] Jun 17 11:07:21 ph4 kernel: RSP: 0018:ffff880225bc7cf8 EFLAGS: 00010246 Jun 17 11:07:21 ph4 kernel: RAX: 0000000000000000 RBX: ffff8802217d80c0 RCX: 0000000000000001 Jun 17 11:07:21 ph4 kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8800ccda4e00 Jun 17 11:07:21 ph4 kernel: RBP: ffff880225bc7d48 R08: 0000000000019160 R09: ffffea0003336900 Jun 17 11:07:21 ph4 kernel: R10: ffffffffa0237609 R11: 000000000000d340 R12: 0000000000000000 Jun 17 11:07:21 ph4 kernel: R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 Jun 17 11:07:21 ph4 kernel: FS: 00007fe74ab9a700(0000) GS:ffff88022fc40000(0000) knlGS:0000000000000000 Jun 17 11:07:21 ph4 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jun 17 11:07:21 ph4 kernel: CR2: 0000000000000018 CR3: 000000022107a000 CR4: 00000000000006e0 Jun 17 11:07:21 ph4 kernel: Stack: Jun 17 11:07:21 ph4 kernel: ffff880225bc7d08 ffff8800ccda4e00 ffff8800ccda4f88 ffffffffa02331d5 Jun 17 11:07:21 ph4 kernel: ffff8800ccda5634 ffff8800ccda4e00 ffff88022333e840 0000000000000000 Jun 17 11:07:21 ph4 kernel: 0000000000000001 0000000000000000 ffff880225bc7d88 ffffffffa0235532 Jun 17 11:07:21 ph4 kernel: Call Trace: Jun 17 11:07:21 ph4 kernel: [] ? ttm_mem_global_free_zone+0x65/0x80 [ttm] Jun 17 11:07:21 ph4 kernel: [] ttm_bo_cleanup_refs_and_unlock+0x32/0x180 [ttm] Jun 17 11:07:21 ph4 kernel: [] ttm_bo_delayed_delete+0x136/0x260 [ttm] Jun 17 11:07:21 ph4 kernel: [] ttm_bo_delayed_workqueue+0x1a/0x40 [ttm] Jun 17 11:07:21 ph4 kernel: [] process_one_work+0x14b/0x450 Jun 17 11:07:21 ph4 kernel: [] worker_thread+0x6b/0x480 Jun 17 11:07:21 ph4 kernel: [] ? rescuer_thread+0x2d0/0x2d0 Jun 17 11:07:21 ph4 kernel: [] ? rescuer_thread+0x2d0/0x2d0 Jun 17 11:07:21 ph4 kernel: [] kthread+0xd6/0xf0 Jun 17 11:07:21 ph4 kernel: [] ? pci_mmcfg_check_reserved+0x10/0xba Jun 17 11:07:21 ph4 kernel: [] ? kthread_create_on_node+0x190/0x190 Jun 17 11:07:21 ph4 kernel: [] ret_from_fork+0x42/0x70 Jun 17 11:07:21 ph4 kernel: [] ? kthread_create_on_node+0x190/0x190 Jun 17 11:07:21 ph4 kernel: Code: ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 00 4c 89 ef e8 00 e1 17 e1 48 8b 55 c8 e9 60 ff ff ff 0f 1f 80 00 00 00 00 48 8b 43 08 <48> 8b 40 18 48 85 c0 74 15 89 4d b4 89 55 c8 48 89 df ff d0 84 Jun 17 11:07:21 ph4 kernel: RIP [] ttm_bo_wait+0x114/0x170 [ttm] Jun 17 11:07:21 ph4 kernel: RSP Jun 17 11:07:21 ph4 kernel: CR2: 0000000000000018 Jun 17 11:07:21 ph4 kernel: ---[ end trace a1c2f033ad2fbf87 ]--- Jun 17 11:07:21 ph4 kernel: note: kworker/1:2[89] exited with preempt_count 1 Jun 17 11:07:21 ph4 kernel: BUG: unable to handle kernel paging request at ffffffffffffffd8 Jun 17 11:08:21 ph4 kernel: IP: [] kthread_data+0xb/0x20 Jun 17 11:08:21 ph4 kernel: PGD 1a0d067 PUD 1a0f067 PMD 0 Jun 17 11:08:21 ph4 kernel: Oops: 0000 [#3] PREEMPT SMP Jun 17 11:08:21 ph4 kernel: Modules linked in: radeon snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel fbcon bitblit snd_hda_controller fbcon_rotate snd_hda_codec fbcon_ccw fbcon_ud fbcon_cw softcursor font tileblit snd_usb_audio snd_hda_core i2c_algo_bit drm_kms_helper snd_usbmidi_lib ttm snd_rawmidi snd_seq_device snd_hwdep r8169 snd_pcm drm ata_generic pata_acpi snd_timer xhci_pci snd xhci_hcd plusb usbnet k10temp mii pata_jmicron soundcore pcspkr acpi_cpufreq asus_atk0110 i2c_piix4 Jun 17 11:08:21 ph4 kernel: CPU: 1 PID: 89 Comm: kworker/1:2 Tainted: G D 4.1.0-rc2-g01d333c-dirty #1 Jun 17 11:08:21 ph4 kernel: Hardware name: System manufacturer System Product Name/M4A89GTD-PRO/USB3, BIOS 1456 05/04/2010 Jun 17 11:08:21 ph4 kernel: task: ffff880225bb9860 ti: ffff880225bc4000 task.ti: ffff880225bc4000 Jun 17 11:08:21 ph4 kernel: RIP: 0010:[] [] kthread_data+0xb/0x20 Jun 17 11:08:21 ph4 kernel: RSP: 0018:ffff880225bc7978 EFLAGS: 00010096 Jun 17 11:08:21 ph4 kernel: RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 Jun 17 11:08:21 ph4 kernel: RDX: 000000000000000f RSI: 0000000000000001 RDI: ffff880225bb9860 Jun 17 11:08:21 ph4 kernel: RBP: ffff880225bc7978 R08: ffff880225bb98f0 R09: 000000000000b963 Jun 17 11:08:21 ph4 kernel: R10: 0000000000000151 R11: 0000000000000000 R12: 0000000000015b80 Jun 17 11:08:21 ph4 kernel: R13: ffff88022fc55b80 R14: ffff880225bb9860 R15: 0000000000000001 Jun 17 11:08:21 ph4 kernel: FS: 00007fe74ab9a700(0000) GS:ffff88022fc40000(0000) knlGS:0000000000000000 Jun 17 11:08:21 ph4 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jun 17 11:08:21 ph4 kernel: CR2: 0000000000000028 CR3: 000000022107a000 CR4: 00000000000006e0 Jun 17 11:08:21 ph4 kernel: Stack: Jun 17 11:08:21 ph4 kernel: ffff880225bc7998 ffffffff8106ad00 ffff880225bc7998 ffff88022fc55b80 Jun 17 11:08:21 ph4 kernel: ffff880225bc79f8 ffffffff815737e8 ffff880200000000 ffff880225bb9860 Jun 17 11:08:21 ph4 kernel: ffff880225bb9860 ffff880225bb9cd8 0000000000000000 ffff880225bc8000 Jun 17 11:08:21 ph4 kernel: Call Trace: Jun 17 11:08:21 ph4 kernel: [] wq_worker_sleeping+0x10/0xa0 Jun 17 11:08:21 ph4 kernel: [] __schedule+0x7e8/0xa80 Jun 17 11:08:21 ph4 kernel: [] schedule+0x32/0x80 Jun 17 11:08:21 ph4 kernel: [] do_exit+0x6f6/0xad0 Jun 17 11:08:21 ph4 kernel: [] oops_end+0x8e/0xd0 Jun 17 11:08:21 ph4 kernel: [] no_context+0x119/0x360 Jun 17 11:08:21 ph4 kernel: [] ? __this_cpu_preempt_check+0x13/0x20 Jun 17 11:08:21 ph4 kernel: [] __bad_area_nosemaphore+0x85/0x1f0 Jun 17 11:08:21 ph4 kernel: [] ? __srcu_read_lock+0x66/0x90 Jun 17 11:08:21 ph4 kernel: [] bad_area_nosemaphore+0xe/0x10 Jun 17 11:08:21 ph4 kernel: [] __do_page_fault+0xb6/0x4b0 Jun 17 11:08:21 ph4 kernel: [] ? preempt_count_add+0x55/0xb0 Jun 17 11:08:21 ph4 kernel: [] do_page_fault+0x28/0x90 Jun 17 11:08:21 ph4 kernel: [] page_fault+0x22/0x30 Jun 17 11:08:21 ph4 kernel: [] ? ttm_transfered_destroy+0x9/0x10 [ttm] Jun 17 11:08:21 ph4 kernel: [] ? ttm_bo_wait+0x114/0x170 [ttm] Jun 17 11:08:21 ph4 kernel: [] ? _raw_spin_lock+0x16/0x50 Jun 17 11:08:21 ph4 kernel: [] ? ttm_mem_global_free_zone+0x65/0x80 [ttm] Jun 17 11:08:21 ph4 kernel: [] ttm_bo_cleanup_refs_and_unlock+0x32/0x180 [ttm] Jun 17 11:08:21 ph4 kernel: [] ttm_bo_delayed_delete+0x136/0x260 [ttm] Jun 17 11:08:21 ph4 kernel: [] ttm_bo_delayed_workqueue+0x1a/0x40 [ttm] Jun 17 11:08:21 ph4 kernel: [] process_one_work+0x14b/0x450 Jun 17 11:08:21 ph4 kernel: [] worker_thread+0x6b/0x480 Jun 17 11:08:21 ph4 kernel: [] ? rescuer_thread+0x2d0/0x2d0 Jun 17 11:08:21 ph4 kernel: [] ? rescuer_thread+0x2d0/0x2d0 Jun 17 11:08:21 ph4 kernel: [] kthread+0xd6/0xf0 Jun 17 11:08:21 ph4 kernel: [] ? pci_mmcfg_check_reserved+0x10/0xba Jun 17 11:08:21 ph4 kernel: [] ? kthread_create_on_node+0x190/0x190 Jun 17 11:08:21 ph4 kernel: [] ret_from_fork+0x42/0x70 Jun 17 11:08:21 ph4 kernel: [] ? kthread_create_on_node+0x190/0x190 Jun 17 11:08:21 ph4 kernel: Code: 00 48 89 e5 5d 48 8b 40 c8 48 c1 e8 02 83 e0 01 c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 48 8b 87 18 05 00 00 55 48 89 e5 <48> 8b 40 d8 5d c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 Jun 17 11:08:21 ph4 kernel: RIP [] kthread_data+0xb/0x20 Jun 17 11:08:21 ph4 kernel: RSP Jun 17 11:08:21 ph4 kernel: CR2: ffffffffffffffd8 Jun 17 11:08:21 ph4 kernel: ---[ end trace a1c2f033ad2fbf88 ]--- Jun 17 11:08:21 ph4 kernel: Fixing recursive fault but reboot is needed! Jun 17 11:08:21 ph4 kernel: BUG: scheduling while atomic: kworker/1:2/89/0x00000005 Jun 17 11:08:21 ph4 kernel: Modules linked in: radeon snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel fbcon bitblit snd_hda_controller fbcon_rotate snd_hda_codec fbcon_ccw fbcon_ud fbcon_cw softcursor font tileblit snd_usb_audio snd_hda_core i2c_algo_bit drm_kms_helper snd_usbmidi_lib ttm snd_rawmidi snd_seq_device snd_hwdep r8169 snd_pcm drm ata_generic pata_acpi snd_timer xhci_pci snd xhci_hcd plusb usbnet k10temp mii pata_jmicron soundcore pcspkr acpi_cpufreq asus_atk0110 i2c_piix4 Jun 17 11:08:21 ph4 kernel: Preemption disabled at:[] ttm_bo_delayed_delete+0xed/0x260 [ttm] Jun 17 11:08:21 ph4 kernel: Jun 17 11:08:21 ph4 kernel: CPU: 1 PID: 89 Comm: kworker/1:2 Tainted: G D 4.1.0-rc2-g01d333c-dirty #1 Jun 17 11:08:21 ph4 kernel: Hardware name: System manufacturer System Product Name/M4A89GTD-PRO/USB3, BIOS 1456 05/04/2010 Jun 17 11:08:21 ph4 kernel: 0000000000015b80 ffff880225bc7608 ffffffff815722cb 0000000000000005 Jun 17 11:08:21 ph4 kernel: ffff88022fc55b80 ffff880225bc7618 ffffffff81074704 ffff880225bc7678 Jun 17 11:08:21 ph4 kernel: ffffffff81573542 ffff880225bc7638 ffff880225bb9860 ffff880225bc7698 Jun 17 11:08:21 ph4 kernel: Call Trace: Jun 17 11:08:21 ph4 kernel: [] dump_stack+0x4f/0x7b Jun 17 11:08:21 ph4 kernel: [] __schedule_bug+0x54/0xb0 Jun 17 11:08:21 ph4 kernel: [] __schedule+0x542/0xa80 Jun 17 11:08:21 ph4 kernel: [] ? printk+0x41/0x43 Jun 17 11:08:21 ph4 kernel: [] schedule+0x32/0x80 Jun 17 11:08:21 ph4 kernel: [] do_exit+0x8cf/0xad0 Jun 17 11:08:21 ph4 kernel: [] ? kmsg_dump+0xbd/0xd0 Jun 17 11:08:21 ph4 kernel: [] oops_end+0x8e/0xd0 Jun 17 11:08:21 ph4 kernel: [] no_context+0x119/0x360 Jun 17 11:08:21 ph4 kernel: [] __bad_area_nosemaphore+0x85/0x1f0 Jun 17 11:08:21 ph4 kernel: [] bad_area_nosemaphore+0xe/0x10 Jun 17 11:08:21 ph4 kernel: [] __do_page_fault+0xb6/0x4b0 Jun 17 11:08:21 ph4 kernel: [] do_page_fault+0x28/0x90 Jun 17 11:08:21 ph4 kernel: [] page_fault+0x22/0x30 Jun 17 11:08:21 ph4 kernel: [] ? kthread_data+0xb/0x20 Jun 17 11:08:21 ph4 kernel: [] wq_worker_sleeping+0x10/0xa0 Jun 17 11:08:21 ph4 kernel: [] __schedule+0x7e8/0xa80 Jun 17 11:08:21 ph4 kernel: [] schedule+0x32/0x80 Jun 17 11:08:21 ph4 kernel: [] do_exit+0x6f6/0xad0 Jun 17 11:08:21 ph4 kernel: [] oops_end+0x8e/0xd0 Jun 17 11:08:21 ph4 kernel: [] no_context+0x119/0x360 Jun 17 11:08:21 ph4 kernel: [] ? __this_cpu_preempt_check+0x13/0x20 Jun 17 11:08:21 ph4 kernel: [] __bad_area_nosemaphore+0x85/0x1f0 Jun 17 11:08:21 ph4 kernel: [] ? __srcu_read_lock+0x66/0x90 Jun 17 11:08:21 ph4 kernel: [] bad_area_nosemaphore+0xe/0x10 Jun 17 11:08:21 ph4 kernel: [] __do_page_fault+0xb6/0x4b0 Jun 17 11:08:21 ph4 kernel: [] ? preempt_count_add+0x55/0xb0 Jun 17 11:08:21 ph4 kernel: [] do_page_fault+0x28/0x90 Jun 17 11:08:21 ph4 kernel: [] page_fault+0x22/0x30 Jun 17 11:08:21 ph4 kernel: [] ? ttm_transfered_destroy+0x9/0x10 [ttm] Jun 17 11:08:21 ph4 kernel: [] ? ttm_bo_wait+0x114/0x170 [ttm] Jun 17 11:08:21 ph4 kernel: [] ? _raw_spin_lock+0x16/0x50 Jun 17 11:08:21 ph4 kernel: [] ? ttm_mem_global_free_zone+0x65/0x80 [ttm] Jun 17 11:08:21 ph4 kernel: [] ttm_bo_cleanup_refs_and_unlock+0x32/0x180 [ttm] Jun 17 11:08:21 ph4 kernel: [] ttm_bo_delayed_delete+0x136/0x260 [ttm] Jun 17 11:08:21 ph4 kernel: [] ttm_bo_delayed_workqueue+0x1a/0x40 [ttm] Jun 17 11:08:21 ph4 kernel: [] process_one_work+0x14b/0x450 Jun 17 11:08:21 ph4 kernel: [] worker_thread+0x6b/0x480 Jun 17 11:08:21 ph4 kernel: [] ? rescuer_thread+0x2d0/0x2d0 Jun 17 11:08:21 ph4 kernel: [] ? rescuer_thread+0x2d0/0x2d0 Jun 17 11:08:21 ph4 kernel: [] kthread+0xd6/0xf0 Jun 17 11:08:21 ph4 kernel: [] ? pci_mmcfg_check_reserved+0x10/0xba Jun 17 11:08:21 ph4 kernel: [] ? kthread_create_on_node+0x190/0x190 Jun 17 11:08:21 ph4 kernel: [] ret_from_fork+0x42/0x70 Jun 17 11:08:21 ph4 kernel: [] ? kthread_create_on_node+0x190/0x190 Jun 17 11:08:21 ph4 kernel: INFO: rcu_preempt detected stalls on CPUs/tasks: { 1} (detected by 0, t=60002 jiffies, g=12752, c=12751, q=0) Jun 17 11:08:21 ph4 kernel: Task dump for CPU 1: Jun 17 11:08:21 ph4 kernel: kworker/1:2 D 0000000000000040 0 89 0 0x00000008 Jun 17 11:08:21 ph4 kernel: ffff88022fc59e00 ffff880225bc7df8 ffffffffa02358fa ffff880225bc7df8 Jun 17 11:08:21 ph4 kernel: ffff880223708c58 ffff880225bc7e48 ffffffff8106a23b ffff880225bc7e28 Jun 17 11:08:21 ph4 kernel: 00ffffff00000000 0000000000000008 ffff8802258d5600 ffff8802258d5630 Jun 17 11:08:21 ph4 kernel: Call Trace: Jun 17 11:08:21 ph4 kernel: [] ? ttm_bo_delayed_workqueue+0x1a/0x40 [ttm] Jun 17 11:08:21 ph4 kernel: [] ? process_one_work+0x14b/0x450 Jun 17 11:08:21 ph4 kernel: [] ? worker_thread+0x6b/0x480 Jun 17 11:08:21 ph4 kernel: [] ? rescuer_thread+0x2d0/0x2d0 Jun 17 11:08:21 ph4 kernel: [] ? rescuer_thread+0x2d0/0x2d0 Jun 17 11:08:21 ph4 kernel: [] ? kthread+0xd6/0xf0 Jun 17 11:08:21 ph4 kernel: [] ? pci_mmcfg_check_reserved+0x10/0xba Jun 17 11:08:21 ph4 kernel: [] ? kthread_create_on_node+0x190/0x190 Jun 17 11:08:21 ph4 kernel: [] ? ret_from_fork+0x42/0x70 Jun 17 11:08:21 ph4 kernel: [] ? kthread_create_on_node+0x190/0x190 Jun 17 11:09:01 ph4 kernel: sysrq: SysRq : Emergency Sync Jun 17 11:09:01 ph4 kernel: Emergency Sync complete Jun 17 11:09:03 ph4 kernel: sysrq: SysRq : Emergency Remount R/O