Bug 715263 - [abrt] kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000058
Summary: [abrt] kernel: BUG: unable to handle kernel NULL pointer dereference at 00000...
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-nouveau
Version: 15
Hardware: x86_64
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Ben Skeggs
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:d943aba654bcee376ac63e030ed...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-06-22 11:18 UTC by John Rowe
Modified: 2012-08-07 15:36 UTC (History)
9 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-08-07 15:36:54 UTC
Type: ---

Attachments (Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

Description John Rowe 2011-06-22 11:18:34 UTC 
abrt version: 2.0.1
architecture:   x86_64
cmdline:        ro root=/dev/mapper/vg_bfsjrowefedora-lv_root rd_LVM_LV=vg_bfsjrowefedora/lv_root rd_LVM_LV=vg_bfsjrowefedora/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=uk rhgb quiet
component:      kernel
kernel:         2.6.38.8-32.fc15.x86_64
os_release:     Fedora release 15 (Lovelock)
package:        kernel
reason:         BUG: unable to handle kernel NULL pointer dereference at 0000000000000058
reported_to:    kerneloops: URL=http://submit.kerneloops.org/submitoops.php
time:           Tue Jun 21 10:59:46 2011

backtrace:
:BUG: unable to handle kernel NULL pointer dereference at 0000000000000058
:IP: [<ffffffffa00d1f96>] nv50_crtc_do_mode_set_base+0x8e/0x27c [nouveau]
:PGD 12a1d6067 PUD 12a88f067 PMD 0 
:Oops: 0000 [#1] SMP 
:last sysfs file: /sys/power/state
:CPU 1 
:Modules linked in: ipheth tun ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat xt_CHECKSUM iptable_mangle bridge virtio_net kvm_intel kvm ip6table_filter ip6_tables tcp_lp fuse 8021q garp cpufreq_ondemand stp llc acpi_cpufreq freq_table mperf ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec btusb snd_hwdep arc4 snd_seq bluetooth snd_seq_device uvcvideo iwlagn snd_pcm e1000e videodev v4l2_compat_ioctl32 iwlcore wmi snd_timer snd_page_alloc iTCO_wdt mac80211 cfg80211 thinkpad_acpi intel_ips snd rfkill iTCO_vendor_support i2c_i801 soundcore microcode joydev ipv6 sdhci_pci sdhci mmc_core firewire_ohci firewire_core crc_itu_t nouveau ttm drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: ip6_tables]
:Pid: 1168, comm: Xorg Not tainted 2.6.38.8-32.fc15.x86_64 #1 LENOVO 43842RG/43842RG
:RIP: 0010:[<ffffffffa00d1f96>]  [<ffffffffa00d1f96>] nv50_crtc_do_mode_set_base+0x8e/0x27c [nouveau]
:RSP: 0018:ffff88012b8338f8  EFLAGS: 00010246
:RAX: ffff88012c3cd000 RBX: ffff88012fbad000 RCX: 0000000000000000
:RDX: ffff88012bf12c80 RSI: 0000000000000000 RDI: ffff88012fbad000
:RBP: ffff88012b833938 R08: 0000000000000000 R09: ffffffffa0042900
:R10: 0000ffffffffff0a R11: ffff88012fbad000 R12: 0000000000000000
:R13: ffff88012b721400 R14: ffff88012b680000 R15: 0000000000000000
:FS:  00007f8a072b58a0(0000) GS:ffff8800bf080000(0000) knlGS:0000000000000000
:CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
:CR2: 0000000000000058 CR3: 000000012c82d000 CR4: 00000000000006e0
:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
:Process Xorg (pid: 1168, threadinfo ffff88012b832000, task ffff88012b8f8000)
:Stack:
: ffff88012b833918 0000000000000000 0000000000040000 ffff88012fbad000
: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
: ffff88012b833968 ffffffffa00d2204 ffff88012bf04958 ffff88012c3cd000
:Call Trace:
: [<ffffffffa00d2204>] nv50_crtc_mode_set_base+0x35/0x5c [nouveau]
: [<ffffffffa006338c>] drm_crtc_helper_set_config+0x743/0x88f [drm_kms_helper]
: [<ffffffff811b529b>] ? __ext4_handle_dirty_metadata+0xf1/0xfa
: [<ffffffff81474408>] ? _cond_resched+0xe/0x22
: [<ffffffffa0061882>] drm_fb_helper_set_par+0x72/0xbb [drm_kms_helper]

event_log:
:2011-06-22-12:18:16> Submitting oops report to http://submit.kerneloops.org/submitoops.php
:2011-06-22-12:18:28  Kernel oops report was uploaded
Comment 1 John Rowe 2011-06-24 18:39:59 UTC 
This appears to have happened again. Here's the information from the kernel this time:

Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987899] BUG: unable to handle kernel NULL pointer dereference at 0000000000000058
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987903] IP: [<ffffffffa00d1f96>] nv50_crtc_do_mode_set_base+0x8e/0x27c [nouveau]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987926] PGD 11c308067 PUD 11ce73067 PMD 0 
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987928] Oops: 0000 [#1] SMP 
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987929] last sysfs file: /sys/devices/virtual/sound/timer/uevent
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987931] CPU 2 
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987932] Modules linked in: tcp_lp fuse ebtable_nat ebtables ipt_MASQUERADE iptabl
e_nat nf_nat xt_CHECKSUM iptable_mangle bridge sunrpc 8021q garp stp llc cpufreq_ondemand acpi_cpufreq freq_table mperf sco bnep 
l2cap bluetooth ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables virtio_net kvm_intel kvm snd_hda_codec_hd
mi snd_hda_codec_conexant arc4 snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm iwlagn iwlcore mac80211 i2c_i
801 microcode cfg80211 iTCO_wdt iTCO_vendor_support intel_ips joydev uvcvideo videodev v4l2_compat_ioctl32 e1000e snd_timer snd_p
age_alloc thinkpad_acpi rfkill snd soundcore wmi ipv6 sdhci_pci sdhci firewire_ohci mmc_core firewire_core crc_itu_t nouveau ttm 
drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987953] 
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987954] Pid: 1298, comm: Xorg Not tainted 2.6.38.8-32.fc15.x86_64 #1 LENOVO 43842
RG/43842RG
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987957] RIP: 0010:[<ffffffffa00d1f96>]  [<ffffffffa00d1f96>] nv50_crtc_do_mode_se
t_base+0x8e/0x27c [nouveau]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987968] RSP: 0018:ffff88011c159928  EFLAGS: 00010246
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987969] RAX: ffff88012bb20800 RBX: ffff88012fbad000 RCX: 0000000000000000
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987970] RDX: ffff88012be9f380 RSI: 0000000000000000 RDI: ffff88012fbad000
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987972] RBP: ffff88011c159968 R08: 0000000000000000 R09: ffffffffa0042900
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987973] R10: 0000ffffffffff0a R11: ffff88012fbad000 R12: 0000000000000000
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987974] R13: ffff88012b6d5400 R14: ffff88012b700000 R15: 0000000000000000
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987976] FS:  00007f63742ec8a0(0000) GS:ffff8800bf100000(0000) knlGS:0000000000000
000
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987977] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987978] CR2: 0000000000000058 CR3: 000000011ccd3000 CR4: 00000000000006e0
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987980] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987981] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987982] Process Xorg (pid: 1298, threadinfo ffff88011c158000, task ffff88011cce5c
c0)
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987983] Stack:
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987984]  ffff88011c159948 0000000000000000 0000000000040000 ffff88012fbad000
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987986]  0000000000000000 0000000000000000 0000000000000000 0000000000000000
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987988]  ffff88011c159998 ffffffffa00d2204 ffff88012bf20958 ffff88012bb20800
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.987990] Call Trace:
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988001]  [<ffffffffa00d2204>] nv50_crtc_mode_set_base+0x35/0x5c [nouveau]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988009]  [<ffffffffa006338c>] drm_crtc_helper_set_config+0x743/0x88f [drm_kms_hel
per]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988015]  [<ffffffff811c7838>] ? jbd2_journal_dirty_metadata+0xc4/0xd2
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988021]  [<ffffffff81474408>] ? _cond_resched+0xe/0x22
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988024]  [<ffffffffa0061882>] drm_fb_helper_set_par+0x72/0xbb [drm_kms_helper]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988029]  [<ffffffff8125f659>] fb_set_var+0x1db/0x2cb
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988034]  [<ffffffff811f9772>] ? mls_level_dom+0x1e/0x28
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988036]  [<ffffffff811f9bb6>] ? constraint_expr_eval+0x235/0x366
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988038]  [<ffffffff811fa97c>] ? context_struct_compute_av+0x23c/0x257
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988041]  [<ffffffff81269ebd>] fbcon_blank+0x7f/0x1e8
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988044]  [<ffffffff81080b7b>] ? arch_local_irq_save+0x15/0x1b
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988048]  [<ffffffff812c546f>] do_unblank_screen+0x10f/0x167
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988052]  [<ffffffff812bd14a>] vt_ioctl+0x553/0x1b7d
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988056]  [<ffffffff811eb0eb>] ? inode_has_perm+0x76/0x8c
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988058]  [<ffffffff812b5167>] tty_ioctl+0x95c/0x9c0
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988062]  [<ffffffff8110f58b>] ? add_partial+0x44/0x50
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988065]  [<ffffffff8146fafa>] ? __slab_free+0x83/0xeb
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988067]  [<ffffffff811eb1a5>] ? file_has_perm+0xa4/0xc6
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988071]  [<ffffffff8112f3a0>] do_vfs_ioctl+0x47e/0x4bf
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988073]  [<ffffffff8112f437>] sys_ioctl+0x56/0x7b
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988077]  [<ffffffff81009bc2>] system_call_fastpath+0x16/0x1b
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988078] Code: a0 00 00 00 b9 0e 02 00 00 48 c7 c2 00 56 0e a0 48 c7 c7 3e f2 0e a
0 31 c0 44 88 4d c0 e8 64 a8 39 e1 44 8a 4d c0 45 84 c9 75 27 
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988095] RIP  [<ffffffffa00d1f96>] nv50_crtc_do_mode_set_base+0x8e/0x27c [nouveau]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988124]  RSP <ffff88011c159928>
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988127] CR2: 0000000000000058
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.988148] ---[ end trace 3c2d29165446064e ]---
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990809] ------------[ cut here ]------------
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990819] WARNING: at drivers/tty/tty_mutex.c:31 tty_lock+0x2e/0x45()
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990821] Hardware name: 43842RG
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990823] Modules linked in: tcp_lp fuse ebtable_nat ebtables ipt_MASQUERADE iptabl
e_nat nf_nat xt_CHECKSUM iptable_mangle bridge sunrpc 8021q garp stp llc cpufreq_ondemand acpi_cpufreq freq_table mperf sco bnep 
l2cap bluetooth ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables virtio_net kvm_intel kvm snd_hda_codec_hd
mi snd_hda_codec_conexant arc4 snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm iwlagn iwlcore mac80211 i2c_i
801 microcode cfg80211 iTCO_wdt iTCO_vendor_support intel_ips joydev uvcvideo videodev v4l2_compat_ioctl32 e1000e snd_timer snd_p
age_alloc thinkpad_acpi rfkill snd soundcore wmi ipv6 sdhci_pci sdhci firewire_ohci mmc_core firewire_core crc_itu_t nouveau ttm 
drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990864] Pid: 1298, comm: Xorg Tainted: G      D     2.6.38.8-32.fc15.x86_64 #1
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990866] Call Trace:
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990872]  [<ffffffff8105511a>] warn_slowpath_common+0x83/0x9b
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990875]  [<ffffffff8105514c>] warn_slowpath_null+0x1a/0x1c
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990878]  [<ffffffff81475db8>] tty_lock+0x2e/0x45
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990882]  [<ffffffff812b3cc5>] tty_release+0x5b/0x4cd
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990888]  [<ffffffff811eb78b>] ? selinux_file_free_security+0x23/0x25
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990893]  [<ffffffff811229ad>] fput+0x121/0x1bb
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990897]  [<ffffffff8111ff17>] filp_close+0x66/0x70
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990900]  [<ffffffff81058046>] put_files_struct+0x6e/0xd5
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990903]  [<ffffffff8105813a>] exit_files+0x41/0x46
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990906]  [<ffffffff810586b0>] do_exit+0x293/0x732
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990909]  [<ffffffff814759c4>] ? _raw_spin_unlock_irqrestore+0x17/0x19
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990912]  [<ffffffff81476cce>] oops_end+0xbc/0xc5
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990917]  [<ffffffff8146c06e>] no_context+0x203/0x212
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990937]  [<ffffffffa002d181>] ? drm_mode_destroy+0x1f/0x23 [drm]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990940]  [<ffffffff8146c211>] __bad_area_nosemaphore+0x194/0x1b7
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990943]  [<ffffffff8146c290>] bad_area+0x47/0x4e
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990946]  [<ffffffff81478e1f>] do_page_fault+0x247/0x37a
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990951]  [<ffffffff8122ee22>] ? put_dec+0x20/0x3c
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990955]  [<ffffffff8122ef78>] ? number+0x13a/0x256
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990958]  [<ffffffff814761d5>] page_fault+0x25/0x30
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990983]  [<ffffffffa00d1f96>] ? nv50_crtc_do_mode_set_base+0x8e/0x27c [nouveau]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.990995]  [<ffffffffa008e6a9>] ? nouveau_bo_rd32+0x27/0x2d [nouveau]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991012]  [<ffffffffa00d2204>] nv50_crtc_mode_set_base+0x35/0x5c [nouveau]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991018]  [<ffffffffa006338c>] drm_crtc_helper_set_config+0x743/0x88f [drm_kms_hel
per]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991022]  [<ffffffff811c7838>] ? jbd2_journal_dirty_metadata+0xc4/0xd2
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991027]  [<ffffffff81474408>] ? _cond_resched+0xe/0x22
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991032]  [<ffffffffa0061882>] drm_fb_helper_set_par+0x72/0xbb [drm_kms_helper]
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991037]  [<ffffffff8125f659>] fb_set_var+0x1db/0x2cb
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991042]  [<ffffffff811f9772>] ? mls_level_dom+0x1e/0x28
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991045]  [<ffffffff811f9bb6>] ? constraint_expr_eval+0x235/0x366
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991048]  [<ffffffff811fa97c>] ? context_struct_compute_av+0x23c/0x257
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991052]  [<ffffffff81269ebd>] fbcon_blank+0x7f/0x1e8
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991069]  [<ffffffff81080b7b>] ? arch_local_irq_save+0x15/0x1b
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991075]  [<ffffffff812c546f>] do_unblank_screen+0x10f/0x167
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991080]  [<ffffffff812bd14a>] vt_ioctl+0x553/0x1b7d
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991083]  [<ffffffff811eb0eb>] ? inode_has_perm+0x76/0x8c
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991086]  [<ffffffff812b5167>] tty_ioctl+0x95c/0x9c0
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991089]  [<ffffffff8110f58b>] ? add_partial+0x44/0x50
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991092]  [<ffffffff8146fafa>] ? __slab_free+0x83/0xeb
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991095]  [<ffffffff811eb1a5>] ? file_has_perm+0xa4/0xc6
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991099]  [<ffffffff8112f3a0>] do_vfs_ioctl+0x47e/0x4bf
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991105]  [<ffffffff8112f437>] sys_ioctl+0x56/0x7b
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991110]  [<ffffffff81009bc2>] system_call_fastpath+0x16/0x1b
Jun 24 16:54:43 BFS-JROWE-FEDORA kernel: [28451.991112] ---[ end trace 3c2d29165446064f ]---
Jun 24 16:54:44 BFS-JROWE-FEDORA abrtd: Unrecognized variable 'DumpLocation' in '/etc/abrt/abrt.conf'
Jun 24 16:54:44 BFS-JROWE-FEDORA abrtd: Directory 'oops-2011-06-24-16:54:44-1147-1' creation detected
Jun 24 16:54:44 BFS-JROWE-FEDORA abrtd: Can't open file '/var/spool/abrt/oops-2011-06-24-16:54:44-1147-1/uid': No such file or di
rectory
Jun 24 16:54:44 BFS-JROWE-FEDORA abrt-dump-oops: Reported 2 kernel oopses to Abrt
Comment 2 Ben Skeggs 2011-06-26 22:58:37 UTC 
What exactly were you doing to trigger these?
Comment 3 John Rowe 2011-06-27 09:48:57 UTC 
I've had a few lock ups with Fedora 15, so I can't be sure of the cause.

However, I believe it followed undocking my Lenovo T510 with an external monitor plugged in to the dock.

Here's the steps:
1. Plug monitor into dock;
2. Dock laptop into dock;
3. Make sure external monitor is enabled;
4. Undock laptop;
5. Put computer to sleep;
6. Sleep never succeeds - computer lock up.

That seems to reliably cause a lockup. This may be related to a bug I filed: 715213.
Comment 4 Kirk Turner-Rustin 2011-10-19 19:09:53 UTC 
Identical issue here: Fedora 15; Lenovo ThinkPad T61; 2.6.40.6-0.fc15.x86_64

For me, the complete sequence was:
0. Start docked without external monitor
1. Hibernate and undock
2. Resume from hibernation
3. Connect external monitor and enable with randr
4. Disable external monitor with randr and disconnect monitor
5. Put laptop to sleep
6. Sleep never succeeds - computer lock up (blinking crescent moon)

After a hard reset, I checked the messages log and found the same null pointer dereference kernel oops given by the OP.
Comment 5 Fedora End Of Life 2012-08-07 15:36:58 UTC 
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