Bug 709433

Summary:	[abrt] kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000040: TAINTED Warning Issued
Product:	[Fedora] Fedora	Reporter:	Garve <xgarve>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	15	CC:	gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Unspecified
Whiteboard:	abrt_hash:1e944f2f545e03e9e5741f186e63d8c20ed9346e
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-04-11 15:57:07 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 Garve 2011-05-31 17:38:55 UTC

abrt version: 2.0.1
architecture:   x86_64
cmdline:        ro root=UUID=02d75961-c821-4ac4-8c2c-dff297ab9150 rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=de-latin1-nodeadkeys rhgb quiet
comment:        Plugged out an USB stick.
component:      kernel
kernel:         2.6.38.6-27.fc15.x86_64
kernel_tainted: 640
os_release:     Fedora release 15 (Lovelock)
package:        kernel
reason:         BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
reported_to:    kerneloops: URL=http://submit.kerneloops.org/submitoops.php
time:           Tue May 31 19:32:31 2011

backtrace:
:BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
:IP: [<ffffffff81216da9>] blk_peek_request+0x159/0x1b6
:PGD 37f8c067 PUD 78035067 PMD 0 
:Oops: 0000 [#1] SMP 
:last sysfs file: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map
:CPU 1 
:Modules linked in: vfat fat usb_storage uas fuse 8021q garp stp llc cpufreq_ondemand acpi_cpufreq freq_table mperf ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables snd_hda_codec_via snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm microcode arc4 iTCO_wdt joydev iTCO_vendor_support serio_raw uvcvideo videodev v4l2_compat_ioctl32 ath9k snd_timer mac80211 snd asus_laptop sparse_keymap ath9k_common ath9k_hw ath soundcore cfg80211 snd_page_alloc atl1e rfkill ipv6 i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
:Pid: 1471, comm: gvfs-gdu-volume Not tainted 2.6.38.6-27.fc15.x86_64 #1 ASUSTeK Computer Inc.         K50IJ               /K50IJ     
:RIP: 0010:[<ffffffff81216da9>]  [<ffffffff81216da9>] blk_peek_request+0x159/0x1b6
:RSP: 0018:ffff88007718faa8  EFLAGS: 00010003
:RAX: 0000000000000038 RBX: 0000000000000000 RCX: 0000000000001660
:RDX: 0000000000000000 RSI: 0000000000000046 RDI: ffff880075a928e0
:RBP: ffff88007718fac8 R08: 0000000000000002 R09: 0000ffff00066c0a
:R10: 0000ffff00066c0a R11: 0000000000000000 R12: ffff880075a928e0
:R13: ffff880075a92dd8 R14: ffff88007718fc40 R15: 0000000000000002
:FS:  00007f48125647c0(0000) GS:ffff88007db00000(0000) knlGS:0000000000000000
:CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
:CR2: 0000000000000040 CR3: 000000007706f000 CR4: 00000000000406e0
:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
:Process gvfs-gdu-volume (pid: 1471, threadinfo ffff88007718e000, task ffff880063584560)
:Stack:
: 0000000000000000 ffff880075a928e0 ffffffff811444c8 ffff88007718fc40
: ffff88007718fb28 ffffffff812fd96e ffff880063584918 0000000000000001
: ffff88007718fb08 ffff880075a928e0 ffff88007dd421e8 ffff880075a928e0
:Call Trace:
: [<ffffffff811444c8>] ? sync_buffer+0x0/0x2e
: [<ffffffff812fd96e>] scsi_request_fn+0x48/0x421
: [<ffffffff811444c8>] ? sync_buffer+0x0/0x2e
: [<ffffffff81216858>] __generic_unplug_device+0x34/0x38
: [<ffffffff81216b10>] generic_unplug_device+0x2d/0x3d
: [<ffffffff812145e2>] ? blk_backing_dev_unplug+0x0/0x14
: [<ffffffff812145de>] blk_unplug+0x26/0x2a
: [<ffffffff812145e2>] ? blk_backing_dev_unplug+0x0/0x14
: [<ffffffff812145f4>] blk_backing_dev_unplug+0x12/0x14
: [<ffffffff81143aac>] blk_run_address_space+0x24/0x26
: [<ffffffff811444ed>] sync_buffer+0x25/0x2e
: [<ffffffff81474805>] __wait_on_bit+0x48/0x7b
: [<ffffffff814748aa>] out_of_line_wait_on_bit+0x72/0x7d
: [<ffffffff811444c8>] ? sync_buffer+0x0/0x2e
: [<ffffffff8106f24f>] ? wake_bit_function+0x0/0x31
: [<ffffffff8114448c>] __wait_on_buffer+0x26/0x28
: [<ffffffff811444c4>] wait_on_buffer+0x36/0x3a
: [<ffffffff811451a0>] __bread+0x5b/0x73
: [<ffffffffa036ae77>] fat_get_entry+0x190/0x1f5 [fat]
: [<ffffffffa036b422>] __fat_readdir+0x1d4/0x81d [fat]
: [<ffffffff8112f5e7>] ? filldir+0x0/0xc7
: [<ffffffff8112f5e7>] ? filldir+0x0/0xc7
: [<ffffffff8112f5e7>] ? filldir+0x0/0xc7
: [<ffffffffa036bcb1>] fat_readdir+0x28/0x2a [fat]
: [<ffffffff8112f8a6>] vfs_readdir+0x76/0xac
: [<ffffffff8112f9c2>] sys_getdents+0x7e/0xce
: [<ffffffff81009bc2>] system_call_fastpath+0x16/0x1b
:Code: fe ff ff be fb ff ff ff 48 89 df e8 e7 f5 ff ff eb 3e 89 c2 48 c7 c6 90 58 63 81 48 c7 c7 78 69 7c 81 31 c0 e8 90 5a 25 00 eb 51 <f7> 43 40 00 20 00 01 74 3b 4c 39 eb 74 36 48 89 de 4c 89 e7 e8 
:RIP  [<ffffffff81216da9>] blk_peek_request+0x159/0x1b6
: RSP <ffff88007718faa8>

event_log:
:2011-05-31-19:38:40> Submitting oops report to http://submit.kerneloops.org/submitoops.php
:2011-05-31-19:38:54  Kernel oops report was uploaded

Comment 1 Josh Boyer 2011-09-27 15:21:08 UTC

This is probably fallout from bug 709431