1151407 – BUG: unable to handle kernel NULL pointer dereference at 0000000000000048

Bug 1151407 - BUG: unable to handle kernel NULL pointer dereference at 0000000000000048

Summary: BUG: unable to handle kernel NULL pointer dereference at 0000000000000048

Keywords:
Status:	CLOSED EOL
Alias:	None
Product:	Fedora
Classification:	Fedora
Component:	xorg-x11-drv-nouveau
Sub Component:
Version:	21
Hardware:	x86_64
OS:	Linux
Priority:	unspecified
Severity:	urgent
Target Milestone:	---
Assignee:	Ben Skeggs
QA Contact:	Fedora Extras Quality Assurance
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2014-10-10 10:28 UTC by Ankur Sinha (FranciscoD)
Modified:	2015-12-02 16:22 UTC (History)
CC List:	10 users (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:	2015-12-02 04:12:45 UTC
Type:	Bug
Embargoed:
Dependent Products:

Attachments	(Terms of Use)
dmesg for 3.18.0-0.rc0.git9.2.fc22.1.x86_64 (150.70 KB, text/plain) 2014-10-16 08:43 UTC, Ankur Sinha (FranciscoD)	no flags	Details
View All

Description Ankur Sinha (FranciscoD) 2014-10-10 10:28:08 UTC

Description of problem:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000048

Version-Release number of selected component (if applicable):
Linux version 3.17.0-1.fc22.x86_64 (using the rawhide nodebug repo)

How reproducible:
Always


Steps to Reproduce:
1.Upgrade
2.reboot
3.

Actual results:
No gui, seems to hang up

Expected results:
Shouldn't hang up

Additional info:
Relevant stuff from journalctl:

Oct 10 09:32:20 localhost.localdomain kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000048
Oct 10 09:32:20 localhost.localdomain kernel: IP: [<ffffffffa02988d5>] nv84_fence_read+0x25/0x30 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel: PGD 23771a067 PUD 237722067 PMD 0
Oct 10 09:32:20 localhost.localdomain kernel: Oops: 0000 [#1] SMP
Oct 10 09:32:20 localhost.localdomain kernel: Modules linked in: xt_CHECKSUM ipt_MASQUERADE tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT
Oct 10 09:32:20 localhost.localdomain kernel:  dell_laptop dcdbas snd_seq_device kvm snd_pcm snd_timer arc4 iwldvm mac80211 iwlwifi snd cfg80211 crct10dif_pclmul crc32_
Oct 10 09:32:20 localhost.localdomain kernel: CPU: 3 PID: 709 Comm: Xorg.bin Tainted: G        W      3.17.0-1.fc22.x86_64 #1
Oct 10 09:32:20 localhost.localdomain kernel: Hardware name: Dell Inc. Vostro 3400/08YN7X, BIOS A10 10/25/2010
Oct 10 09:32:20 localhost.localdomain kernel: task: ffff88023e10bae0 ti: ffff8800a6394000 task.ti: ffff8800a6394000
Oct 10 09:32:20 localhost.localdomain kernel: RIP: 0010:[<ffffffffa02988d5>]  [<ffffffffa02988d5>] nv84_fence_read+0x25/0x30 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel: RSP: 0018:ffff8800a6397c60  EFLAGS: 00010206
Oct 10 09:32:20 localhost.localdomain kernel: RAX: 0000000000000000 RBX: ffff88022a26ea80 RCX: 0000000000000003
Oct 10 09:32:20 localhost.localdomain kernel: RDX: 0000000000000003 RSI: 000000000000000c RDI: ffff8800a5f19600
Oct 10 09:32:20 localhost.localdomain kernel: RBP: ffff8800a6397c60 R08: ffff88023d815a00 R09: ffff880243001b00
Oct 10 09:32:20 localhost.localdomain kernel: R10: ffffffffa028e1b2 R11: ffff88022a26ea80 R12: ffff88023d815a00
Oct 10 09:32:20 localhost.localdomain kernel: R13: ffff88023d815a00 R14: ffff8800a5f19600 R15: ffff88023e10bae0
Oct 10 09:32:20 localhost.localdomain kernel: FS:  00007f229a4e69c0(0000) GS:ffff88024bd80000(0000) knlGS:0000000000000000
Oct 10 09:32:20 localhost.localdomain kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Oct 10 09:32:20 localhost.localdomain kernel: CR2: 0000000000000048 CR3: 000000023772e000 CR4: 00000000000007e0
Oct 10 09:32:20 localhost.localdomain kernel: Stack:
Oct 10 09:32:20 localhost.localdomain kernel:  ffff8800a6397c90 ffffffffa028d756 ffff88022a26ea80 0000000000000000
Oct 10 09:32:20 localhost.localdomain kernel:  0000000000000000 0000000000000000 ffff8800a6397ce8 ffffffffa028de2e
Oct 10 09:32:20 localhost.localdomain kernel:  ffff88023e10bae0 00000000000003e8 ffff8800a6397ce8 00000000dbc7c762
Oct 10 09:32:20 localhost.localdomain kernel: Call Trace:
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028d756>] nouveau_fence_update+0x66/0x90 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028de2e>] nouveau_fence_wait+0xee/0x200 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028c02d>] nouveau_channel_idle+0x12d/0x160 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0296c42>] nouveau_abi16_ioctl_gpuobj_free+0x152/0x220 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa003ee6f>] drm_ioctl+0x1df/0x680 [drm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028a79a>] nouveau_drm_ioctl+0x6a/0xc0 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81220340>] do_vfs_ioctl+0x2d0/0x4b0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff812205a1>] SyS_ioctl+0x81/0xa0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81743469>] system_call_fastpath+0x16/0x1b
Oct 10 09:32:20 localhost.localdomain kernel: Code: 66 0f 1f 44 00 00 66 66 66 66 90 55 8b 77 10 48 89 e5 c1 e6 04 8d 46 03 85 f6 0f 48 f0 48 8b 47 08 c1 fe 02 48 8b 80
Oct 10 09:32:20 localhost.localdomain kernel: RIP  [<ffffffffa02988d5>] nv84_fence_read+0x25/0x30 [nouveau]
Oct 10 09:32:21 localhost.localdomain kernel:  RSP <ffff8800a6397c60>
Oct 10 09:32:21 localhost.localdomain kernel: CR2: 0000000000000048
Oct 10 09:32:21 localhost.localdomain kernel: ---[ end trace a5afab7bf7726900 ]---
Oct 10 09:32:21 localhost.localdomain kernel: input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input23
Oct 10 09:32:21 localhost.localdomain kernel: input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input24
Oct 10 09:32:21 localhost.localdomain kernel: input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input25
Oct 10 09:32:21 localhost.localdomain kernel: input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input26


Oct 10 09:32:20 localhost.localdomain kernel: ------------[ cut here ]------------
Oct 10 09:32:20 localhost.localdomain kernel: WARNING: CPU: 1 PID: 99 at drivers/gpu/drm/drm_mm.c:765 drm_mm_takedown+0x2e/0x30 [drm]()
Oct 10 09:32:20 localhost.localdomain kernel: Memory manager not clean during takedown.
Oct 10 09:32:20 localhost.localdomain kernel: Modules linked in: xt_CHECKSUM ipt_MASQUERADE tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT
Oct 10 09:32:20 localhost.localdomain kernel:  dell_laptop dcdbas snd_seq_device kvm snd_pcm snd_timer arc4 iwldvm mac80211 iwlwifi snd cfg80211 crct10dif_pclmul crc32_
Oct 10 09:32:20 localhost.localdomain kernel: CPU: 1 PID: 99 Comm: kworker/u8:3 Tainted: G        W      3.17.0-1.fc22.x86_64 #1
Oct 10 09:32:20 localhost.localdomain kernel: Hardware name: Dell Inc. Vostro 3400/08YN7X, BIOS A10 10/25/2010
Oct 10 09:32:20 localhost.localdomain kernel: Workqueue: kacpi_hotplug acpi_hotplug_work_fn
Oct 10 09:32:20 localhost.localdomain kernel:  0000000000000000 0000000095ac9157 ffff88023dd17ad0 ffffffff8173c311
Oct 10 09:32:20 localhost.localdomain kernel:  ffff88023dd17b18 ffff88023dd17b08 ffffffff81096e8d ffff88023fe24628
Oct 10 09:32:20 localhost.localdomain kernel:  ffff88023fe241c0 0000000000000000 0000000000000000 ffff88023ee5e300
Oct 10 09:32:20 localhost.localdomain kernel: Call Trace:
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff8173c311>] dump_stack+0x45/0x56
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81096e8d>] warn_slowpath_common+0x7d/0xa0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81096f0c>] warn_slowpath_fmt+0x5c/0x80
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0086954>] ? ttm_bo_delayed_delete+0x34/0x240 [ttm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0046eae>] drm_mm_takedown+0x2e/0x30 [drm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa005746b>] drm_vma_offset_manager_destroy+0x1b/0x30 [drm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0087e23>] ttm_bo_device_release+0xd3/0x100 [ttm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028fa58>] nouveau_ttm_fini+0x58/0x80 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028a943>] nouveau_drm_unload+0x63/0xc0 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0042949>] drm_dev_unregister+0x29/0xb0 [drm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0043003>] drm_put_dev+0x23/0x80 [drm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028a113>] nouveau_drm_device_remove+0x83/0xb0 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028a155>] nouveau_drm_remove+0x15/0x20 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813c446b>] pci_device_remove+0x3b/0xc0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81497d4f>] __device_release_driver+0x7f/0xf0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81497de3>] device_release_driver+0x23/0x30
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813be794>] pci_stop_bus_device+0x94/0xa0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813be892>] pci_stop_and_remove_bus_device+0x12/0x20
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813dca47>] disable_slot+0x57/0xb0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813dd208>] acpiphp_check_bridge.part.8+0xe8/0x100
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813ddadc>] acpiphp_hotplug_notify+0xdc/0x260
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813dda00>] ? acpiphp_post_dock_fixup+0xe0/0xe0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81405c87>] acpi_device_hotplug+0x3b2/0x40e
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813ff47a>] acpi_hotplug_work_fn+0x1e/0x29
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810af66d>] process_one_work+0x14d/0x400
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810afffb>] worker_thread+0x6b/0x4a0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810aff90>] ? rescuer_thread+0x2a0/0x2a0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810b50da>] kthread+0xea/0x100
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810b4ff0>] ? kthread_create_on_node+0x1a0/0x1a0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff817433bc>] ret_from_fork+0x7c/0xb0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810b4ff0>] ? kthread_create_on_node+0x1a0/0x1a0
Oct 10 09:32:20 localhost.localdomain kernel: ---[ end trace a5afab7bf77268fd ]---

Oct 10 09:32:20 localhost.localdomain kernel: ------------[ cut here ]------------
Oct 10 09:32:20 localhost.localdomain kernel: WARNING: CPU: 1 PID: 99 at drivers/gpu/drm/ttm/ttm_page_alloc_dma.c:535 ttm_dma_free_pool+0xee/0xf0 [ttm]()
Oct 10 09:32:20 localhost.localdomain kernel: Modules linked in: xt_CHECKSUM ipt_MASQUERADE tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT
Oct 10 09:32:20 localhost.localdomain kernel:  dell_laptop dcdbas snd_seq_device kvm snd_pcm snd_timer arc4 iwldvm mac80211 iwlwifi snd cfg80211 crct10dif_pclmul crc32_
Oct 10 09:32:20 localhost.localdomain kernel: CPU: 1 PID: 99 Comm: kworker/u8:3 Tainted: G        W      3.17.0-1.fc22.x86_64 #1
Oct 10 09:32:20 localhost.localdomain kernel: Hardware name: Dell Inc. Vostro 3400/08YN7X, BIOS A10 10/25/2010
Oct 10 09:32:20 localhost.localdomain kernel: Workqueue: kacpi_hotplug acpi_hotplug_work_fn
Oct 10 09:32:20 localhost.localdomain kernel:  0000000000000000 0000000095ac9157 ffff88023dd17ac8 ffffffff8173c311
Oct 10 09:32:20 localhost.localdomain kernel:  0000000000000000 ffff88023dd17b00 ffffffff81096e8d ffff8800a5e4f180
Oct 10 09:32:20 localhost.localdomain kernel:  ffff88023fe7e2b0 0000000000000008 ffff88023fd1e400 ffff88024303b050
Oct 10 09:32:20 localhost.localdomain kernel: Call Trace:
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff8173c311>] dump_stack+0x45/0x56
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81096e8d>] warn_slowpath_common+0x7d/0xa0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81096fba>] warn_slowpath_null+0x1a/0x20
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa008dffe>] ttm_dma_free_pool+0xee/0xf0 [ttm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa008f0ea>] ttm_dma_page_alloc_fini+0x8a/0x10e [ttm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0084509>] ttm_mem_global_release+0x19/0x90 [ttm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028f152>] nouveau_ttm_mem_global_release+0x12/0x20 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0055e28>] drm_global_item_unref+0x68/0x90 [drm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028f4df>] nouveau_ttm_global_release+0x2f/0x40 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028fa60>] nouveau_ttm_fini+0x60/0x80 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028a943>] nouveau_drm_unload+0x63/0xc0 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0042949>] drm_dev_unregister+0x29/0xb0 [drm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0043003>] drm_put_dev+0x23/0x80 [drm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028a113>] nouveau_drm_device_remove+0x83/0xb0 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028a155>] nouveau_drm_remove+0x15/0x20 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813c446b>] pci_device_remove+0x3b/0xc0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81497d4f>] __device_release_driver+0x7f/0xf0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81497de3>] device_release_driver+0x23/0x30
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813be794>] pci_stop_bus_device+0x94/0xa0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813be892>] pci_stop_and_remove_bus_device+0x12/0x20
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813dca47>] disable_slot+0x57/0xb0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813dd208>] acpiphp_check_bridge.part.8+0xe8/0x100
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813ddadc>] acpiphp_hotplug_notify+0xdc/0x260
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813dda00>] ? acpiphp_post_dock_fixup+0xe0/0xe0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81405c87>] acpi_device_hotplug+0x3b2/0x40e
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813ff47a>] acpi_hotplug_work_fn+0x1e/0x29
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810af66d>] process_one_work+0x14d/0x400
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810afffb>] worker_thread+0x6b/0x4a0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810aff90>] ? rescuer_thread+0x2a0/0x2a0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810b50da>] kthread+0xea/0x100
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810b4ff0>] ? kthread_create_on_node+0x1a0/0x1a0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff817433bc>] ret_from_fork+0x7c/0xb0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810b4ff0>] ? kthread_create_on_node+0x1a0/0x1a0
Oct 10 09:32:20 localhost.localdomain kernel: ---[ end trace a5afab7bf77268fe ]---
Oct 10 09:32:20 localhost.localdomain kernel: ------------[ cut here ]------------


Oct 10 09:32:20 localhost.localdomain kernel: ------------[ cut here ]------------
Oct 10 09:32:20 localhost.localdomain kernel: WARNING: CPU: 1 PID: 99 at drivers/gpu/drm/ttm/ttm_page_alloc_dma.c:535 ttm_dma_free_pool+0xee/0xf0 [ttm]()
Oct 10 09:32:20 localhost.localdomain kernel: Modules linked in: xt_CHECKSUM ipt_MASQUERADE tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT
Oct 10 09:32:20 localhost.localdomain kernel:  dell_laptop dcdbas snd_seq_device kvm snd_pcm snd_timer arc4 iwldvm mac80211 iwlwifi snd cfg80211 crct10dif_pclmul crc32_
Oct 10 09:32:20 localhost.localdomain kernel: CPU: 1 PID: 99 Comm: kworker/u8:3 Tainted: G        W      3.17.0-1.fc22.x86_64 #1
Oct 10 09:32:20 localhost.localdomain kernel: Hardware name: Dell Inc. Vostro 3400/08YN7X, BIOS A10 10/25/2010
Oct 10 09:32:20 localhost.localdomain kernel: Workqueue: kacpi_hotplug acpi_hotplug_work_fn
Oct 10 09:32:20 localhost.localdomain kernel:  0000000000000000 0000000095ac9157 ffff88023dd17ac8 ffffffff8173c311
Oct 10 09:32:20 localhost.localdomain kernel:  0000000000000000 ffff88023dd17b00 ffffffff81096e8d ffff88022fc53780
Oct 10 09:32:20 localhost.localdomain kernel:  ffff88023fe7e2b0 0000000000000002 ffff88023fd1e400 ffff88024303b050
Oct 10 09:32:20 localhost.localdomain kernel: Call Trace:
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff8173c311>] dump_stack+0x45/0x56
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81096e8d>] warn_slowpath_common+0x7d/0xa0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81096fba>] warn_slowpath_null+0x1a/0x20
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa008dffe>] ttm_dma_free_pool+0xee/0xf0 [ttm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa008f0ea>] ttm_dma_page_alloc_fini+0x8a/0x10e [ttm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0084509>] ttm_mem_global_release+0x19/0x90 [ttm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028f152>] nouveau_ttm_mem_global_release+0x12/0x20 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0055e28>] drm_global_item_unref+0x68/0x90 [drm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028f4df>] nouveau_ttm_global_release+0x2f/0x40 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028fa60>] nouveau_ttm_fini+0x60/0x80 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028a943>] nouveau_drm_unload+0x63/0xc0 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0042949>] drm_dev_unregister+0x29/0xb0 [drm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa0043003>] drm_put_dev+0x23/0x80 [drm]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028a113>] nouveau_drm_device_remove+0x83/0xb0 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffffa028a155>] nouveau_drm_remove+0x15/0x20 [nouveau]
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813c446b>] pci_device_remove+0x3b/0xc0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81497d4f>] __device_release_driver+0x7f/0xf0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81497de3>] device_release_driver+0x23/0x30
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813be794>] pci_stop_bus_device+0x94/0xa0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813be892>] pci_stop_and_remove_bus_device+0x12/0x20
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813dca47>] disable_slot+0x57/0xb0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813dd208>] acpiphp_check_bridge.part.8+0xe8/0x100
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813ddadc>] acpiphp_hotplug_notify+0xdc/0x260
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813dda00>] ? acpiphp_post_dock_fixup+0xe0/0xe0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff81405c87>] acpi_device_hotplug+0x3b2/0x40e
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff813ff47a>] acpi_hotplug_work_fn+0x1e/0x29
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810af66d>] process_one_work+0x14d/0x400
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810afffb>] worker_thread+0x6b/0x4a0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810aff90>] ? rescuer_thread+0x2a0/0x2a0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810b50da>] kthread+0xea/0x100
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810b4ff0>] ? kthread_create_on_node+0x1a0/0x1a0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff817433bc>] ret_from_fork+0x7c/0xb0
Oct 10 09:32:20 localhost.localdomain kernel:  [<ffffffff810b4ff0>] ? kthread_create_on_node+0x1a0/0x1a0
Oct 10 09:32:20 localhost.localdomain kernel: ---[ end trace a5afab7bf77268ff ]---

Oct 10 09:31:40 localhost.localdomain kernel: Linux version 3.17.0-1.fc22.x86_64 (mockbuild.fedoraproject.org) (gcc version 4.9.1 20140930 (Red Hat 4.9.1

Comment 1 Ankur Sinha (FranciscoD) 2014-10-10 12:27:11 UTC

Thanks for reassigning the bug, Josh. The weird thing is that there hasn't been a nouveau update recently - only the kernel was updated. Any idea why a kernel update would cause this?

[asinha@localhost  ~]$ pkcon get-transactions | grep kernel
 - downloading kernel-3.17.0-0.rc6.git1.2.fc22.1.x86_64
 - downloading kernel-core-3.17.0-0.rc6.git1.2.fc22.1.x86_64
 - downloading kernel-modules-3.17.0-0.rc6.git1.2.fc22.1.x86_64
 - downloading kernel-headers-3.17.0-0.rc6.git1.2.fc22.1.x86_64
 - downloading kernel-3.17.0-0.rc7.git0.1.fc22.x86_64
 - downloading kernel-modules-3.17.0-0.rc7.git0.1.fc22.x86_64
 - downloading kernel-core-3.17.0-0.rc7.git0.1.fc22.x86_64
 - downloading kernel-headers-3.17.0-0.rc7.git0.1.fc22.x86_64
 - downloading kernel-3.17.0-1.fc22.x86_64
 - downloading kernel-core-3.17.0-1.fc22.x86_64
 - downloading kernel-modules-3.17.0-1.fc22.x86_64
 - downloading kernel-headers-3.17.0-1.fc22.x86_64
 - downloading kernel-3.18.0-0.rc0.git1.2.fc22.1.x86_64
 - downloading kernel-core-3.18.0-0.rc0.git1.2.fc22.1.x86_64
 - downloading kernel-modules-3.18.0-0.rc0.git1.2.fc22.1.x86_64
 - downloading kernel-headers-3.18.0-0.rc0.git1.2.fc22.1.x86_64
 - installing kernel-core-3.18.0-0.rc0.git1.2.fc22.1.x86_64
 - installing kernel-modules-3.18.0-0.rc0.git1.2.fc22.1.x86_64
 - installing kernel-3.18.0-0.rc0.git1.2.fc22.1.x86_64
 - updating kernel-headers-3.18.0-0.rc0.git1.2.fc22.1.x86_64
 - cleanup kernel-3.17.0-0.rc7.git2.1.fc22.x86_64
 - cleanup kernel-3.17.0-0.rc7.git0.2.fc22.x86_64
 - cleanup kernel-3.17.0-0.rc7.git0.1.fc22.x86_64
 - cleanup kernel-headers-3.17.0-1.fc22.x86_64
 - cleanup kernel-modules-3.17.0-0.rc7.git0.1.fc22.x86_64
 - cleanup kernel-modules-3.17.0-0.rc7.git0.2.fc22.x86_64
 - cleanup kernel-modules-3.17.0-0.rc7.git2.1.fc22.x86_64
 - cleanup kernel-core-3.17.0-0.rc7.git2.1.fc22.x86_64
 - cleanup kernel-core-3.17.0-0.rc7.git0.2.fc22.x86_64
 - cleanup kernel-core-3.17.0-0.rc7.git0.1.fc22.x86_64

I found a similar bug where the reporter said that another kernel update fixed the issue for him:
https://bugs.freedesktop.org/show_bug.cgi?id=40541

Comment 2 Josh Boyer 2014-10-10 12:40:07 UTC

We assign DRM driver bugs to their userspace xorg counter-parts in bugzilla.  The same people work on them and it makes it easier for them to find the bugs.

Comment 3 Ankur Sinha (FranciscoD) 2014-10-16 08:42:43 UTC

Ah, Thanks Josh.

Happens with 3.18.0-0.rc0.git9.2.fc22.1.x86_64 also - I *think* it's related. It hung up and now I see that kernel messages mention this:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000030

Complete dmesg attached.

Comment 4 Ankur Sinha (FranciscoD) 2014-10-16 08:43:22 UTC

Created attachment 947514 [details]
dmesg for 3.18.0-0.rc0.git9.2.fc22.1.x86_64

Comment 5 Rémi G. 2014-11-02 21:42:23 UTC

I experience a (maybe) similar regression with a similar laptop (a Dell Vostro 3300).

I have reported the bug here:
https://bugzilla.redhat.com/show_bug.cgi?id=1158061

I did a bisection and found the first bad commit.

Hope that helps

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