Bug 742773

Summary:	[abrt] kernel: BUG: unable to handle kernel NULL pointer dereference at (null): TAINTED -------D
Product:	[Fedora] Fedora	Reporter:	Andrew Schultz <ajschult784>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED INSUFFICIENT_DATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	16	CC:	gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Unspecified
Whiteboard:	abrt_hash:260ed9c525baea431099c33cdfe3795d70c302a5
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-03-14 16:22:28 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 Andrew Schultz 2011-10-02 18:26:01 UTC

libreport version: 2.0.5.982
abrt_version:   2.0.4.981
cmdline:        BOOT_IMAGE=/vmlinuz-3.1.0-0.rc8.git0.0.fc16.x86_64 root=/dev/mapper/vg_bozo-lv_root ro rd.md=0 rd.dm=0 rd.lvm.lv=vg_bozo/lv_swap KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 rd.lvm.lv=vg_bozo/lv_root LANG=en_US.UTF-8
comment:        doing nothing exiting
kernel:         undefined
kernel_tainted: 128
kernel_tainted_long: Kernel has oopsed before.
reason:         BUG: unable to handle kernel NULL pointer dereference at           (null)
time:           Sun Oct  2 14:13:09 2011

backtrace:
:BUG: unable to handle kernel NULL pointer dereference at           (null)
:IP: [<ffffffff8114de10>] __block_write_full_page+0xc7/0x2d4
:PGD 0 
:Oops: 0000 [#1] SMP 
:CPU 3 
:Modules linked in: ums_realtek usb_storage uas ppdev parport_pc lp parport fuse 8021q garp stp llc fcoe libfcoe libfc scsi_transport_fc scsi_tgt rfcomm bnep nf_conntrack_ipv4 nf_defrag_ipv4 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables binfmt_misc snd_hda_codec_hdmi snd_hda_codec_realtek arc4 snd_hda_intel snd_hda_codec snd_hwdep snd_seq btusb iwlagn snd_seq_device mac80211 uvcvideo videodev bluetooth cfg80211 media snd_pcm snd_timer snd iTCO_wdt microcode iTCO_vendor_support r8169 i2c_i801 dell_laptop dcdbas dell_wmi sparse_keymap uinput joydev v4l2_compat_ioctl32 soundcore rfkill mii snd_page_alloc wmi i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
:Pid: 2835, comm: flush-8:0 Not tainted 3.1.0-0.rc8.git0.0.fc16.x86_64 #1 Dell Inc.          Dell System Inspiron N4110/05TM8C
:RIP: 0010:[<ffffffff8114de10>]  [<ffffffff8114de10>] __block_write_full_page+0xc7/0x2d4
:RSP: 0018:ffff88012ddf99a0  EFLAGS: 00010293
:RAX: 0000000000000020 RBX: ffffea0004797d80 RCX: 0000000000000002
:RDX: 000000000007cfff RSI: ffffea0004797d80 RDI: ffff88012fd51458
:RBP: ffff88012ddf9a00 R08: ffffffff8114f81d R09: fffffffffffffff5
:R10: 00000000000162b4 R11: 0000000000016268 R12: ffff88012fd51458
:R13: 0000000000000000 R14: ffff8801377c4c30 R15: 0000000000000001
:FS:  0000000000000000(0000) GS:ffff88013fac0000(0000) knlGS:0000000000000000
:CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
:CR2: 0000000000000000 CR3: 0000000001a05000 CR4: 00000000000406e0
:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
:Process flush-8:0 (pid: 2835, threadinfo ffff88012ddf8000, task ffff88012d990000)
:Stack:
: ffffffff81152397 ffffffff8114f81d ffff88012ddf9ca0 0000000000000400
: 000000000007cfff 000000000004100c 0000000000040000 ffffea0004797d80
: ffff88012fd51458 ffff88012ddf9ca0 ffffffff8114f81d ffffffff81152397
:Call Trace:
: [<ffffffff81152397>] ? thaw_bdev+0x79/0x79
: [<ffffffff8114f81d>] ? bit_spin_lock.constprop.20+0x2c/0x2c
: [<ffffffff8114f81d>] ? bit_spin_lock.constprop.20+0x2c/0x2c
: [<ffffffff81152397>] ? thaw_bdev+0x79/0x79
: [<ffffffff8114f707>] block_write_full_page_endio+0x87/0x94
: [<ffffffff8114f729>] block_write_full_page+0x15/0x17
: [<ffffffff81152108>] blkdev_writepage+0x18/0x1a
: [<ffffffff810e61f8>] __writepage+0x15/0x2e
: [<ffffffff810e602a>] write_cache_pages+0x218/0x348
: [<ffffffff810e61e3>] ? set_page_dirty_lock+0x33/0x33
: [<ffffffff810e619a>] generic_writepages+0x40/0x56
: [<ffffffff810e6f01>] do_writepages+0x21/0x2a
: [<ffffffff81147b80>] writeback_single_inode+0x113/0x2c7
: [<ffffffff81148031>] writeback_sb_inodes+0x16e/0x208
: [<ffffffff81148143>] __writeback_inodes_wb+0x78/0xb9
: [<ffffffff811482a9>] wb_writeback+0x125/0x231
: [<ffffffff8113c5e0>] ? get_nr_inodes_unused+0x45/0x5c
: [<ffffffff811487ad>] wb_do_writeback+0x146/0x1b5
: [<ffffffff81148897>] bdi_writeback_thread+0x7b/0x1f8
: [<ffffffff8114881c>] ? wb_do_writeback+0x1b5/0x1b5
: [<ffffffff81072def>] kthread+0x84/0x8c
: [<ffffffff814be1f4>] kernel_thread_helper+0x4/0x10
: [<ffffffff81072d6b>] ? kthread_worker_fn+0x148/0x148
: [<ffffffff814be1f0>] ? gs_change+0x13/0x13
:Code: e0 48 89 45 c8 8b 45 b8 4d 89 f5 48 89 45 b8 48 8b 55 c0 48 39 55 c8 76 12 4c 89 ef e8 3f e8 ff ff 4c 89 ef e8 0a e8 ff ff eb 71 
:RIP  [<ffffffff8114de10>] __block_write_full_page+0xc7/0x2d4
: RSP <ffff88012ddf99a0>

Comment 1 Josh Boyer 2012-02-28 23:32:07 UTC

Have you seen this again on a 3.2.x kernel?  There have been a number of fixes in the block layer.