Bug 771312

Summary: screen backlight does not always come on after resume
Product: [Fedora] Fedora Reporter: Thomas Vander Stichele <thomas>
Component: xorg-x11-drv-intelAssignee: Adam Jackson <ajax>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 16CC: ajax, szoke.karcsi, xgl-maint
Target Milestone: ---   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-02-13 08:09:14 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Thomas Vander Stichele 2012-01-03 09:59:55 UTC
Description of problem:

Sometimes, resume leaves me with a blank screen.  Laptop still works, I can log into it over ssh.

dmesg snippets:

[224329.085872] ------------[ cut here ]------------
[224329.085899] kernel BUG at drivers/gpu/drm/i915/i915_gem.c:3459!
[224329.085928] invalid opcode: 0000 [#1] SMP 
[224329.085952] CPU 0 
[224329.085963] Modules linked in: ses enclosure usb_storage tcp_lp ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat xt_CHECKSUM iptable_mangle tun bridge stp llc vmnet ppdev parport_pc lp parport fuse vsock vmci vmmon rfcomm lockd bnep coretemp nf_conntrack_ipv4 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 nf_defrag_ipv4 xt_state nf_conntrack ip6table_filter ip6_tables xts gf128mul dm_crypt snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm arc4 iwlwifi mac80211 btusb virtio_net uvcvideo bluetooth iTCO_wdt e1000e kvm_intel kvm videodev media v4l2_compat_ioctl32 microcode snd_timer cfg80211 thinkpad_acpi iTCO_vendor_support snd_page_alloc rfkill cdc_ncm usbnet mii cdc_wdm cdc_acm snd sunrpc i2c_i801 binfmt_misc uinput soundcore joydev sdhci_pci sdhci mmc_core wmi i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
[224329.086467] 
[224329.086478] Pid: 2290, comm: Xorg Not tainted 3.1.6-1.fc16.x86_64 #1 LENOVO 4236NGG/4236NGG
[224329.086526] RIP: 0010:[<ffffffffa008d34f>]  [<ffffffffa008d34f>] i915_gem_object_unpin+0xaf/0xc0 [i915]
[224329.086574] RSP: 0018:ffff880209b0bb68  EFLAGS: 00010246
[224329.086591] RAX: ffff88022c30a000 RBX: ffff880224fc0600 RCX: ffff88022c2f0908
[224329.086613] RDX: 000000000006041f RSI: 0000000000000003 RDI: ffff880224fc0600
[224329.086636] RBP: ffff880209b0bb88 R08: ffff88022c30a438 R09: 0000000000000004
[224329.086658] R10: 000000000000000a R11: 0000000000000003 R12: ffff88022c30a020
[224329.086680] R13: ffff88022bee8000 R14: 0000000000000000 R15: ffff88010fe41000
[224329.086702] FS:  00007f7304b37880(0000) GS:ffff88023e200000(0000) knlGS:0000000000000000
[224329.086727] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[224329.086745] CR2: 000000370f6001c8 CR3: 00000002183ce000 CR4: 00000000000406f0
[224329.086768] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[224329.086790] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[224329.086812] Process Xorg (pid: 2290, threadinfo ffff880209b0a000, task ffff88020cd20000)
[224329.086836] Stack:
[224329.086844]  ffff880209b0bb88 ffff88022c331800 ffff88022c30a020 ffff88022c30a450
[224329.086872]  ffff880209b0bba8 ffffffffa0096649 ffff88022c331800 ffffffffa00df320
[224329.086899]  ffff880209b0bbd8 ffffffffa0062745 0000000000000001 ffff88022c331800
[224329.086927] Call Trace:
[224329.086943]  [<ffffffffa0096649>] intel_crtc_disable+0x49/0x60 [i915]
[224329.086967]  [<ffffffffa0062745>] drm_helper_disable_unused_functions+0x115/0x190 [drm_kms_helper]
[224329.086997]  [<ffffffffa0063fcb>] drm_crtc_helper_set_config+0x8db/0x9f0 [drm_kms_helper]
[224329.087041]  [<ffffffffa002a5f6>] drm_framebuffer_cleanup+0xa6/0xd0 [drm]
[224329.087070]  [<ffffffffa0097321>] intel_user_framebuffer_destroy+0x21/0x70 [i915]
[224329.087110]  [<ffffffffa002d14b>] drm_mode_rmfb+0xab/0x100 [drm]
[224329.087134]  [<ffffffffa001e3f4>] drm_ioctl+0x3e4/0x4c0 [drm]
[224329.087157]  [<ffffffffa002d0a0>] ? drm_mode_addfb+0x170/0x170 [drm]
[224329.087180]  [<ffffffff81256600>] ? inode_has_perm+0x30/0x40
[224329.087199]  [<ffffffff812599fc>] ? file_has_perm+0xdc/0xf0
[224329.087218]  [<ffffffff811842a8>] do_vfs_ioctl+0x98/0x550
[224329.087236]  [<ffffffff811847f1>] sys_ioctl+0x91/0xa0
[224329.087254]  [<ffffffff815dccc2>] system_call_fastpath+0x16/0x1b
[224329.087273] Code: 1f 44 00 00 4c 8d a7 b0 00 00 00 4c 89 e7 e8 69 f5 22 e1 49 8b b5 78 16 00 00 49 8d 95 70 16 00 00 4c 89 e7 e8 63 f6 22 e1 eb be <0f> 0b 0f 0b 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 
[224329.087403] RIP  [<ffffffffa008d34f>] i915_gem_object_unpin+0xaf/0xc0 [i915]
[224329.087430]  RSP <ffff880209b0bb68>
[224331.498035] iwlwifi 0000:03:00.0: Queue 4 stuck for 2000 ms.
[224331.498076] iwlwifi 0000:03:00.0: Current read_ptr 190 write_ptr 191
[224331.498105] iwlwifi 0000:03:00.0: On demand firmware reload
[224331.498502] ieee80211 phy0: Hardware restart was requested
[224331.498594] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[224331.498812] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[224336.492407] iwlwifi 0000:03:00.0: Could not load the INST uCode section
[224336.492451] iwlwifi 0000:03:00.0: Failed to start RT ucode: -110
[224336.492765] iwlwifi 0000:03:00.0: Unable to initialize device.
[224339.059694] pulseaudio[2676]: module-tunnel.c: Protocol error.
[224339.061263] pulseaudio[2676]: module-tunnel.c: Protocol error.
[224339.062965] pulseaudio[2676]: module-tunnel.c: Protocol error.
[224339.064542] pulseaudio[2676]: module-tunnel.c: Protocol error.
[224349.125724] dbus-daemon[2283]: ** Message: No devices in use, exit
[224389.051609] INFO: rcu_sched_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=60002 jiffies)
[224389.053114] sending NMI to all CPUs:
[224389.054540] NMI backtrace for cpu 1
[224389.055904] CPU 1 
[224389.055915] Modules linked in: ses enclosure usb_storage tcp_lp ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat xt_CHECKSUM iptable_mangle tun bridge stp llc vmnet ppdev parport_pc lp parport fuse vsock vmci vmmon rfcomm lockd bnep coretemp nf_conntrack_ipv4 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 nf_defrag_ipv4 xt_state nf_conntrack ip6table_filter ip6_tables xts gf128mul dm_crypt snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm arc4 iwlwifi mac80211 btusb virtio_net uvcvideo bluetooth iTCO_wdt e1000e kvm_intel kvm videodev media v4l2_compat_ioctl32 microcode snd_timer cfg80211 thinkpad_acpi iTCO_vendor_support snd_page_alloc rfkill cdc_ncm usbnet mii cdc_wdm cdc_acm snd sunrpc i2c_i801 binfmt_misc uinput soundcore joydev sdhci_pci sdhci mmc_core wmi i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
[224389.064669] 
[224389.066172] Pid: 0, comm: kworker/0:0 Not tainted 3.1.6-1.fc16.x86_64 #1 LENOVO 4236NGG/4236NGG
[224389.067717] RIP: 0010:[<ffffffff812b6dd4>]  [<ffffffff812b6dd4>] __bitmap_andnot+0x4/0x50
[224389.069270] RSP: 0018:ffff88023e243d48  EFLAGS: 00000046
[224389.070815] RAX: 0000000000000000 RBX: ffff88023e24d500 RCX: 0000000000000100
[224389.072366] RDX: ffff88023e20d520 RSI: ffff88023e24d500 RDI: ffff88023e24d500
[224389.073908] RBP: ffff88023e243db8 R08: ffff88023e24d520 R09: 0000000000000100
[224389.075442] R10: 0000000000000000 R11: 000000000000c800 R12: ffff88023e20d520
[224389.076984] R13: 000000000000d540 R14: 0000000000080000 R15: 000000000000000f
[224389.078532] FS:  0000000000000000(0000) GS:ffff88023e240000(0000) knlGS:0000000000000000
[224389.080080] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[224389.081617] CR2: 00007fc803359ac8 CR3: 0000000209919000 CR4: 00000000000406e0
[224389.083157] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[224389.084704] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[224389.086245] Process kworker/0:0 (pid: 0, threadinfo ffff8802309e8000, task ffff8802309e1730)
[224389.087794] Stack:
[224389.089322]  ffff88023e243db8 ffffffff810355e6 ffffffff81a32480 0000000000000092
[224389.090883]  000000013e243dc8 000000000000d520 0000000000000002 0000000000000001
[224389.092438]  ffff88023e243dd8 0000000000002710 ffffffff81a31380 ffffffff81a31480
[224389.093990] Call Trace:
[224389.095520]  <IRQ> 
[224389.097039]  [<ffffffff810355e6>] ? __x2apic_send_IPI_mask+0x156/0x180
[224389.098581]  [<ffffffff8103562c>] x2apic_send_IPI_all+0x1c/0x20
[224389.100123]  [<ffffffff810318a1>] arch_trigger_all_cpu_backtrace+0x61/0xa0
[224389.101673]  [<ffffffff810e0999>] __rcu_pending+0x359/0x380
[224389.103222]  [<ffffffff810e0d2c>] rcu_check_callbacks+0x6c/0x120
[224389.104775]  [<ffffffff8107cb08>] update_process_times+0x48/0x90
[224389.106331]  [<ffffffff8109f6c4>] tick_sched_timer+0x64/0xc0
[224389.107885]  [<ffffffff81092100>] __run_hrtimer+0x70/0x1e0
[224389.109377]  [<ffffffff8109f660>] ? tick_nohz_handler+0x100/0x100
[224389.110804]  [<ffffffff81019fd9>] ? read_tsc+0x9/0x20
[224389.112212]  [<ffffffff81092a7b>] hrtimer_interrupt+0xeb/0x210
[224389.113612]  [<ffffffff815df8c9>] smp_apic_timer_interrupt+0x69/0x99
[224389.115009]  [<ffffffff815dd79e>] apic_timer_interrupt+0x6e/0x80
[224389.116407]  <EOI> 
[224389.117795]  [<ffffffff813055db>] ? intel_idle+0xcb/0x120
[224389.119194]  [<ffffffff813055bd>] ? intel_idle+0xad/0x120
[224389.120582]  [<ffffffff814841e6>] cpuidle_idle_call+0xc6/0x280
[224389.121972]  [<ffffffff81012225>] cpu_idle+0xc5/0x120
[224389.123355]  [<ffffffff815c14c3>] start_secondary+0x260/0x262
[224389.124741] Code: 1f 84 00 00 00 00 00 48 8b 0c c2 48 33 0c c6 48 89 0c c7 48 83 c0 01 41 39 c0 7f eb 5d c3 66 0f 1f 84 00 00 00 00 00 4c 63 c9 55 <31> c0 49 83 c1 3f 49 c1 e9 06 48 89 e5 45 85 c9 7e 2d 31 c9 45 
[224389.127830] Call Trace:
[224389.129336]  <IRQ>  [<ffffffff810355e6>] ? __x2apic_send_IPI_mask+0x156/0x180
[224389.130892]  [<ffffffff8103562c>] x2apic_send_IPI_all+0x1c/0x20
[224389.132464]  [<ffffffff810318a1>] arch_trigger_all_cpu_backtrace+0x61/0xa0
[224389.134034]  [<ffffffff810e0999>] __rcu_pending+0x359/0x380
[224389.135581]  [<ffffffff810e0d2c>] rcu_check_callbacks+0x6c/0x120
[224389.137109]  [<ffffffff8107cb08>] update_process_times+0x48/0x90
[224389.138638]  [<ffffffff8109f6c4>] tick_sched_timer+0x64/0xc0
[224389.140173]  [<ffffffff81092100>] __run_hrtimer+0x70/0x1e0
[224389.141654]  [<ffffffff8109f660>] ? tick_nohz_handler+0x100/0x100
[224389.143080]  [<ffffffff81019fd9>] ? read_tsc+0x9/0x20
[224389.144444]  [<ffffffff81092a7b>] hrtimer_interrupt+0xeb/0x210
[224389.145756]  [<ffffffff815df8c9>] smp_apic_timer_interrupt+0x69/0x99
[224389.147016]  [<ffffffff815dd79e>] apic_timer_interrupt+0x6e/0x80
[224389.148244]  <EOI>  [<ffffffff813055db>] ? intel_idle+0xcb/0x120
[224389.149466]  [<ffffffff813055bd>] ? intel_idle+0xad/0x120
[224389.150672]  [<ffffffff814841e6>] cpuidle_idle_call+0xc6/0x280
[224389.151866]  [<ffffffff81012225>] cpu_idle+0xc5/0x120
[224389.153044]  [<ffffffff815c14c3>] start_secondary+0x260/0x262
[224389.154222] NMI backtrace for cpu 2
[224389.155461] CPU 2 
[224389.155473] Modules linked in: ses enclosure usb_storage tcp_lp ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat xt_CHECKSUM iptable_mangle tun bridge stp llc vmnet ppdev parport_pc lp parport fuse vsock vmci vmmon rfcomm lockd bnep coretemp nf_conntrack_ipv4 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 nf_defrag_ipv4 xt_state nf_conntrack ip6table_filter ip6_tables xts gf128mul dm_crypt snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm arc4 iwlwifi mac80211 btusb virtio_net uvcvideo bluetooth iTCO_wdt e1000e kvm_intel kvm videodev media v4l2_compat_ioctl32 microcode snd_timer cfg80211 thinkpad_acpi iTCO_vendor_support snd_page_alloc rfkill cdc_ncm usbnet mii cdc_wdm cdc_acm snd sunrpc i2c_i801 binfmt_misc uinput soundcore joydev sdhci_pci sdhci mmc_core wmi i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
[224389.164000] 
[224389.165517] Pid: 0, comm: kworker/0:1 Not tainted 3.1.6-1.fc16.x86_64 #1 LENOVO 4236NGG/4236NGG
[224389.167070] RIP: 0010:[<ffffffff813055ad>]  [<ffffffff813055ad>] intel_idle+0x9d/0x120
[224389.168619] RSP: 0018:ffff880230403e58  EFLAGS: 00000046
[224389.170149] RAX: 0000000000000030 RBX: 0000000000000010 RCX: 0000000000000001
[224389.171692] RDX: 0000000000000000 RSI: ffff880230403fd8 RDI: ffffffff81a12980
[224389.173238] RBP: ffff880230403ea8 R08: 00000000fffffffb R09: 00000000000002b5
[224389.174782] R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000030
[224389.176340] R13: 1265691e51bde0c7 R14: 0000000000000002 R15: 0000000000000000
[224389.177888] FS:  0000000000000000(0000) GS:ffff88023e280000(0000) knlGS:0000000000000000
[224389.179451] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[224389.181011] CR2: 00001cc034088000 CR3: 0000000001a05000 CR4: 00000000000406e0
[224389.182584] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[224389.184157] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[224389.185726] Process kworker/0:1 (pid: 0, threadinfo ffff880230402000, task ffff8802309f9730)
[224389.187317] Stack:
[224389.188895]  ffff880230403ea8 ffffffff81485437 0000000000000000 00000000000f38c3
[224389.190518]  0000000000000000 00000002000f38c3 ffff88023e29a270 ffff88023e29a270
[224389.192149]  00000000fffffff0 0000000000000004 ffff880230403ef8 ffffffff814841e6
[224389.193783] Call Trace:
[224389.195400]  [<ffffffff81485437>] ? menu_select+0xe7/0x360
[224389.197033]  [<ffffffff814841e6>] cpuidle_idle_call+0xc6/0x280
[224389.198661]  [<ffffffff81012225>] cpu_idle+0xc5/0x120
[224389.200280]  [<ffffffff815c14c3>] start_secondary+0x260/0x262
[224389.201912] Code: 28 e0 ff ff 83 e2 08 75 22 31 d2 48 83 c0 10 48 89 d1 0f 01 c8 0f ae f0 48 8b 86 38 e0 ff ff a8 08 75 08 b1 01 4c 89 e0 0f 01 c9 <e8> fe 26 d9 ff 4c 29 e8 48 89 c7 e8 b3 bd d6 ff 4c 69 e0 40 42 
[224389.205508] Call Trace:
[224389.207259]  [<ffffffff81485437>] ? menu_select+0xe7/0x360
[224389.208964]  [<ffffffff814841e6>] cpuidle_idle_call+0xc6/0x280
[224389.210598]  [<ffffffff81012225>] cpu_idle+0xc5/0x120
[224389.212233]  [<ffffffff815c14c3>] start_secondary+0x260/0x262
[224389.213858] NMI backtrace for cpu 3
[224389.215327] CPU 3 
[224389.215338] Modules linked in: ses enclosure usb_storage tcp_lp ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat xt_CHECKSUM iptable_mangle tun bridge stp llc vmnet ppdev parport_pc lp parport fuse vsock vmci vmmon rfcomm lockd bnep coretemp nf_conntrack_ipv4 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 nf_defrag_ipv4 xt_state nf_conntrack ip6table_filter ip6_tables xts gf128mul dm_crypt snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm arc4 iwlwifi mac80211 btusb virtio_net uvcvideo bluetooth iTCO_wdt e1000e kvm_intel kvm videodev media v4l2_compat_ioctl32 microcode snd_timer cfg80211 thinkpad_acpi iTCO_vendor_support snd_page_alloc rfkill cdc_ncm usbnet mii cdc_wdm cdc_acm snd sunrpc i2c_i801 binfmt_misc uinput soundcore joydev sdhci_pci sdhci mmc_core wmi i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
[224389.222767] 
[224389.224065] Pid: 0, comm: kworker/0:1 Not tainted 3.1.6-1.fc16.x86_64 #1 LENOVO 4236NGG/4236NGG
[224389.225415] RIP: 0010:[<ffffffff813055ad>]  [<ffffffff813055ad>] intel_idle+0x9d/0x120
[224389.226761] RSP: 0018:ffff880230421e58  EFLAGS: 00000046
[224389.228100] RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000001
[224389.229454] RDX: 0000000000000000 RSI: ffff880230421fd8 RDI: ffffffff81a12980
[224389.230805] RBP: ffff880230421ea8 R08: 00000000fffffffe R09: 00000000000003e4
[224389.232164] R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000
[224389.233529] R13: 1265691e51bde119 R14: 0000000000000003 R15: 0000000000000000
[224389.234892] FS:  0000000000000000(0000) GS:ffff88023e2c0000(0000) knlGS:0000000000000000
[224389.236264] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[224389.237638] CR2: 00007fc7e217ad78 CR3: 000000020c301000 CR4: 00000000000406e0
[224389.239024] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[224389.240382] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[224389.241697] Process kworker/0:1 (pid: 0, threadinfo ffff880230420000, task ffff880230419730)
[224389.242986] Stack:
[224389.244226]  ffff880230421ea8 ffffffff81485437 0000000000000000 00000000000f3807
[224389.245459]  0000000000000000 00000003000f3807 ffff88023e2da270 ffff88023e2da270
[224389.246683]  00000000fffffff0 0000000000000001 ffff880230421ef8 ffffffff814841e6
[224389.247893] Call Trace:
[224389.249078]  [<ffffffff81485437>] ? menu_select+0xe7/0x360
[224389.250269]  [<ffffffff814841e6>] cpuidle_idle_call+0xc6/0x280
[224389.251454]  [<ffffffff81012225>] cpu_idle+0xc5/0x120
[224389.252628]  [<ffffffff815c14c3>] start_secondary+0x260/0x262
[224389.253793] Code: 28 e0 ff ff 83 e2 08 75 22 31 d2 48 83 c0 10 48 89 d1 0f 01 c8 0f ae f0 48 8b 86 38 e0 ff ff a8 08 75 08 b1 01 4c 89 e0 0f 01 c9 <e8> fe 26 d9 ff 4c 29 e8 48 89 c7 e8 b3 bd d6 ff 4c 69 e0 40 42 
[224389.256708] Call Trace:
[224389.257958]  [<ffffffff81485437>] ? menu_select+0xe7/0x360
[224389.259215]  [<ffffffff814841e6>] cpuidle_idle_call+0xc6/0x280
[224389.260463]  [<ffffffff81012225>] cpu_idle+0xc5/0x120
[224389.261705]  [<ffffffff815c14c3>] start_secondary+0x260/0x262
[224406.682661] systemd-logind[2384]: New session 75 of user root.
[224431.673446] /usr/sbin/crond[4210]: pam_systemd(crond:session): Failed to create session: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
[224431.674337] ------------[ cut here ]------------
[224431.674363] WARNING: at drivers/gpu/drm/i915/i915_irq.c:651 ironlake_irq_handler+0x8bf/0x8d0 [i915]()
[224431.674364] Hardware name: 4236NGG
[224431.674365] Missed a PM interrupt
[224431.674366] Modules linked in: ses enclosure usb_storage tcp_lp ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat xt_CHECKSUM iptable_mangle tun bridge stp llc vmnet ppdev parport_pc lp parport fuse vsock vmci vmmon rfcomm lockd bnep coretemp nf_conntrack_ipv4 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 nf_defrag_ipv4 xt_state nf_conntrack ip6table_filter ip6_tables xts gf128mul dm_crypt snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm arc4 iwlwifi mac80211 btusb virtio_net uvcvideo bluetooth iTCO_wdt e1000e kvm_intel kvm videodev media v4l2_compat_ioctl32 microcode snd_timer cfg80211 thinkpad_acpi iTCO_vendor_support snd_page_alloc rfkill cdc_ncm usbnet mii cdc_wdm cdc_acm snd sunrpc i2c_i801 binfmt_misc uinput soundcore joydev sdhci_pci sdhci mmc_core wmi i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
[224431.674402] Pid: 4216, comm: crond Not tainted 3.1.6-1.fc16.x86_64 #1
[224431.674403] Call Trace:
[224431.674405]  <IRQ>  [<ffffffff8106b73f>] warn_slowpath_common+0x7f/0xc0
[224431.674416]  [<ffffffff8106b836>] warn_slowpath_fmt+0x46/0x50
[224431.674425]  [<ffffffffa0075c5f>] ironlake_irq_handler+0x8bf/0x8d0 [i915]
[224431.674429]  [<ffffffff8109255e>] ? __hrtimer_start_range_ns+0x18e/0x480
[224431.674435]  [<ffffffff810da8f5>] handle_irq_event_percpu+0x55/0x220
[224431.674438]  [<ffffffff810537c8>] ? hrtick_update+0x38/0x40
[224431.674440]  [<ffffffff810dab04>] handle_irq_event+0x44/0x70
[224431.674443]  [<ffffffff810dd5fa>] handle_edge_irq+0x7a/0x120
[224431.674446]  [<ffffffff810151e9>] handle_irq+0x49/0xa0
[224431.674449]  [<ffffffff815df7da>] do_IRQ+0x5a/0xe0
[224431.674452]  [<ffffffff815d526e>] common_interrupt+0x6e/0x6e
[224431.674455]  [<ffffffff81072c50>] ? __do_softirq+0x70/0x230
[224431.674458]  [<ffffffff8109f27f>] ? tick_program_event+0x1f/0x30
[224431.674461]  [<ffffffff815def2c>] call_softirq+0x1c/0x30
[224431.674463]  [<ffffffff810152a5>] do_softirq+0x65/0xa0
[224431.674465]  [<ffffffff810730ae>] irq_exit+0x9e/0xc0
[224431.674467]  [<ffffffff815df8ce>] smp_apic_timer_interrupt+0x6e/0x99
[224431.674470]  [<ffffffff815dd79e>] apic_timer_interrupt+0x6e/0x80
[224431.674471]  <EOI>  [<ffffffff81057a1a>] ? finish_task_switch+0x4a/0xe0
[224431.674476]  [<ffffffff810636d7>] schedule_tail+0x27/0xb0
[224431.674478]  [<ffffffff815dcbc3>] ret_from_fork+0x13/0x80
[224431.674480] ---[ end trace c471ef2c93660db6 ]---

Comment 1 Fedora End Of Life 2013-01-16 10:00:26 UTC
This message is a reminder that Fedora 16 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 16. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '16'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 16's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 16 is end of life. If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora, you are encouraged to click on 
"Clone This Bug" and open it against that version of Fedora.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

The process we are following is described here: 
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Comment 2 Fedora End Of Life 2013-02-13 08:09:25 UTC
Fedora 16 changed to end-of-life (EOL) status on 2013-02-12. Fedora 16 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.