Bug 714353

Summary: [abrt] kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000050: TAINTED Die
Product: [Fedora] Fedora Reporter: Malar Kannan <malarkannan.p>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 15CC: gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard: abrt_hash:3ff8be6b8bfd803d37d1a465058a8dc9f646c5c2
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-10-06 22:12:10 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 Malar Kannan 2011-06-18 11:43:05 UTC 
abrt version: 2.0.1
architecture:   x86_64
cmdline:        ro root=/dev/mapper/VolGroup-lv_root rd_LVM_LV=VolGroup/lv_root rd_LVM_LV=VolGroup/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us rhgb quiet
comment:        safely removed goflex hdd. hdd turns of usb power automatically when i do that,which is also when the kernel crashed :P
component:      kernel
kernel:         2.6.38.7-30.fc15.x86_64
kernel_tainted: 128
os_release:     Fedora release 15 (Lovelock)
package:        kernel
reason:         BUG: unable to handle kernel NULL pointer dereference at 0000000000000050
reported_to:    kerneloops: URL=http://submit.kerneloops.org/submitoops.php
time:           Sat Jun 18 17:08:08 2011

backtrace:
:BUG: unable to handle kernel NULL pointer dereference at 0000000000000050
:WARNING! power/level is deprecated; use power/control instead
:Buffer I/O error on device sdb1, logical block 50
:Buffer I/O error on device sdb1, logical block 0
:Buffer I/O error on device sdb1, logical block 0
:Buffer I/O error on device sdb1, logical block 2
:Buffer I/O error on device sdb1, logical block 2
:Buffer I/O error on device sdb1, logical block 0
:Buffer I/O error on device sdb1, logical block 0
:Buffer I/O error on device sdb1, logical block 244189004
:IP: [<ffffffff8121165a>] elv_completed_request+0x3d/0x4a
:PGD 11183c067 PUD 111d4d067 PMD 0 
:Oops: 0000 [#1] SMP 
:last sysfs file: /sys/devices/pci0000:00/0000:00:1d.7/usb2/2-3/remove
:CPU 1 
:Modules linked in: usb_storage uas vboxnetadp vboxnetflt vboxdrv sunrpc cpufreq_ondemand acpi_cpufreq freq_table mperf nf_conntrack_netbios_ns fuse btusb bluetooth uvcvideo videodev v4l2_compat_ioctl32 snd_hda_codec_hdmi arc4 snd_hda_codec_idt iwlagn snd_hda_intel snd_hda_codec snd_hwdep r852 sm_common snd_seq nand snd_seq_device iwlcore nand_ids nand_ecc mac80211 mtd dell_wmi sparse_keymap snd_pcm dell_laptop snd_timer microcode dcdbas joydev iTCO_wdt cfg80211 snd tg3 i2c_i801 rfkill soundcore wmi iTCO_vendor_support snd_page_alloc sdhci_pci firewire_ohci sdhci mmc_core firewire_core crc_itu_t video radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core [last unloaded: scsi_wait_scan]
:Pid: 2671, comm: scsi_eh_6 Not tainted 2.6.38.7-30.fc15.x86_64 #1 Dell Inc. Studio 1555/0C234M
:RIP: 0010:[<ffffffff8121165a>]  [<ffffffff8121165a>] elv_completed_request+0x3d/0x4a
:RSP: 0018:ffff8800a5dafc70  EFLAGS: 00010002
:RAX: 0000000000000000 RBX: ffff880133471b40 RCX: 0000000000002591
:RDX: ffff8800a5881240 RSI: ffff8801048d4e10 RDI: ffff880133471b40
:RBP: ffff8800a5dafc70 R08: 0000000000000001 R09: 0000000000001135
:R10: ffff8801337c1e00 R11: ffff88003767f300 R12: ffff8801048d4e10
:R13: 00000000000000b4 R14: 0000000000000001 R15: 00000000fffffffb
:FS:  0000000000000000(0000) GS:ffff8800bd900000(0000) knlGS:0000000000000000
:CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
:CR2: 0000000000000050 CR3: 00000001120e8000 CR4: 00000000000406e0
:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
:Process scsi_eh_6 (pid: 2671, threadinfo ffff8800a5dae000, task ffff880110140000)
:Stack:
: ffff8800a5dafca0 ffffffff81215f4d ffff8801048d4e10 ffff8801048d4e10
: ffff88003784ac00 00000000000000b4 ffff8800a5dafd00 ffffffff812161bf
: ffff8801048d4e10 0000000000000006 0000000000000001 0000000000001135
:Call Trace:
: [<ffffffff81215f4d>] __blk_put_request+0x35/0xb5
: [<ffffffff812161bf>] blk_finish_request+0x1f2/0x201
: [<ffffffff812162af>] blk_end_bidi_request+0x40/0x5d
: [<ffffffff812162dc>] blk_end_request+0x10/0x12
: [<ffffffff8121631a>] blk_end_request_err+0x3c/0x41
: [<ffffffff812fe99c>] scsi_io_completion+0x3de/0x43e
: [<ffffffff812f6e42>] scsi_finish_command+0xe1/0xea
: [<ffffffff812fba9e>] scsi_eh_flush_done_q+0xfc/0x124
: [<ffffffff812fc14d>] scsi_error_handler+0x387/0x596
: [<ffffffff812fbdc6>] ? scsi_error_handler+0x0/0x596
: [<ffffffff8106ebaf>] kthread+0x84/0x8c
: [<ffffffff8100a9e4>] kernel_thread_helper+0x4/0x10
: [<ffffffff8106eb2b>] ? kthread+0x0/0x8c
: [<ffffffff8100a9e0>] ? kernel_thread_helper+0x0/0x10
:Code: 80 74 33 83 7e 44 01 74 04 a8 40 74 29 83 e0 11 ff c8 0f 95 c0 0f b6 c0 48 05 04 01 00 00 ff 4c 87 0c f6 46 41 08 74 0e 48 8b 02 
:RIP  [<ffffffff8121165a>] elv_completed_request+0x3d/0x4a
: RSP <ffff8800a5dafc70>

event_log:
:2011-06-18-17:12:57> Submitting oops report to http://submit.kerneloops.org/submitoops.php
:2011-06-18-17:13:01  Kernel oops report was uploaded
Comment 1 Josh Boyer 2011-09-26 18:17:37 UTC 
There was a USB drive removal issue fixed in a newer F15 kernel.  Can you recreate this on the latest F15 2.6.40.x kernel?