Bug 771656

Summary: [abrt] kernel: BUG: unable to handle kernel NULL pointer dereference at 000000000000006c
Product: [Fedora] Fedora Reporter: peterdiver
Component: kernelAssignee: John W. Linville <linville>
Status: CLOSED INSUFFICIENT_DATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 16CC: gansalmon, itamar, jonathan, kernel-maint, larry.finger, madhu.chinakonda
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard: abrt_hash:ec1024f8a596234189c59e07dc5264a6687e20d1
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-09-04 15:09:23 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
File: backtrace
none
Proposed patch to prevent BUG none

Description peterdiver 2012-01-04 13:42:00 UTC 
libreport version: 2.0.8
abrt_version:   2.0.7
cmdline:        BOOT_IMAGE=/vmlinuz-3.1.6-1.fc16.x86_64 root=/dev/mapper/vg_apneista-lv_root ro rd.luks.uuid=luks-b18216b2-a448-48a8-8793-07f607a296d7 rd.dm=0 KEYTABLE=us quiet rd.lvm.lv=vg_apneista/lv_swap rhgb rd.lvm.lv=vg_apneista/lv_root rd.md=0 SYSFONT=latarcyrheb-sun16 LANG=en_US.UTF-8
event_log:      2012-01-04-15:41:28> Smolt profile successfully saved
kernel:         3.1.6-1.fc16.x86_64
reason:         BUG: unable to handle kernel NULL pointer dereference at 000000000000006c
time:           IST 05:35:08 2012 ינו 01 א'

backtrace:      Text file, 4304 bytes

smolt_data:
:
:
:General
:=================================
:UUID: c7fdb0e0-440b-493a-8a7c-984aa6f9267c
:OS: Fedora release 16 (Verne)
:Default run level: Unknown
:Language: en_US.utf8
:Platform: x86_64
:BogoMIPS: 2992.39
:CPU Vendor: AuthenticAMD
:CPU Model: AMD Athlon(tm) Neo X2 Dual Core Processor L325
:CPU Stepping: 2
:CPU Family: 15
:CPU Model Num: 107
:Number of CPUs: 2
:CPU Speed: 1495
:System Memory: 2758
:System Swap: 4799
:Vendor: LENOVO
:System: 01972MG ThinkPad Edge
:Form factor: Notebook
:Kernel: 3.1.6-1.fc16.x86_64
:SELinux Enabled: 1
:SELinux Policy: targeted
:SELinux Enforce: Enforcing
:MythTV Remote: Unknown
:MythTV Role: Unknown
:MythTV Theme: Unknown
:MythTV Plugin: 
:MythTV Tuner: -1
:
:
:Devices
:=================================
:(4098:17297:6058:8627) pci, ahci, STORAGE, SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode]
:(4130:38407:6058:8627) pci, pcieport, PCI/PCI, RS780 PCI to PCI bridge (PCIE port 3)
:(4098:17302:6058:8627) pci, ehci_hcd, USB, SB7x0/SB8x0/SB9x0 USB EHCI Controller
:(4130:38400:6058:8627) pci, None, HOST/PCI, RS780 Host Bridge
:(4130:38402:4130:38402) pci, None, PCI/PCI, RS780/RS880 PCI to PCI bridge (int gfx)
:(4332:33128:6058:8497) pci, r8169, ETHERNET, RTL8111/8168B PCI Express Gigabit Ethernet controller
:(4130:4352:0:0) pci, None, HOST/PCI, K8 [Athlon64/Opteron] HyperTransport Technology Configuration
:(4130:4355:0:0) pci, k8temp, HOST/PCI, K8 [Athlon64/Opteron] Miscellaneous Control
:(4130:4354:0:0) pci, None, HOST/PCI, K8 [Athlon64/Opteron] DRAM Controller
:(4130:4353:0:0) pci, None, HOST/PCI, K8 [Athlon64/Opteron] Address Map
:(4332:33138:4332:57376) pci, rtl8192se, NETWORK, RTL8191SEvB Wireless LAN Controller
:(4098:17285:6058:8627) pci, piix4_smbus, SERIAL, SBx00 SMBus Controller
:(4098:17309:6058:8627) pci, None, PCI/ISA, SB7x0/SB8x0/SB9x0 LPC host controller
:(4098:17283:6058:8627) pci, snd_hda_intel, MULTIMEDIA, SBx00 Azalia (Intel HDA)
:(4098:17284:0:0) pci, None, PCI/PCI, SBx00 PCI to PCI Bridge
:(4098:38418:6058:8627) pci, radeon, VIDEO, RS780M/RS780MN [Radeon HD 3200 Graphics]
:(4098:38415:4098:38418) pci, snd_hda_intel, MULTIMEDIA, RS780 Azalia controller
:(4098:17303:6058:8627) pci, ohci_hcd, USB, SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
:(4098:17304:6058:8627) pci, ohci_hcd, USB, SB7x0 USB OHCI1 Controller
:(4098:17302:6058:8627) pci, ehci_hcd, USB, SB7x0/SB8x0/SB9x0 USB EHCI Controller
:(4098:17304:6058:8627) pci, ohci_hcd, USB, SB7x0 USB OHCI1 Controller
:(4098:17303:6058:8627) pci, ohci_hcd, USB, SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
:(4130:38405:6058:8627) pci, pcieport, PCI/PCI, RS780 PCI to PCI bridge (PCIE port 1)
:
:
:Filesystem Information
:=================================
:device mtpt type bsize frsize blocks bfree bavail file ffree favail
:-------------------------------------------------------------------
:/dev/mapper/vg_apneista-lv_root / ext4 4096 4096 12901535 11396988 11265966 3276800 3088345 3088345
:/dev/sda5 /boot ext4 1024 1024 495844 409880 384280 128016 127782 127782
:/dev/mapper/vg_apneista-lv_home /home ext4 4096 4096 28254384 15230501 13795263 7176192 7165555 7165555
:
Comment 1 peterdiver 2012-01-04 13:42:05 UTC 
Created attachment 550685 [details]
File: backtrace
Comment 2 John W. Linville 2012-01-04 20:31:47 UTC 
Larry, this is using the 3.2-rc6 snapshot of compat-wireless...any thoughts?
Comment 3 Larry Finger 2012-01-05 02:46:53 UTC 
There are 2 dev_alloc_skb() calls that are not checked for failure.

The OP's system must be extremely memory limited. A patch is available that will be posted here, and submitted to wireless-testing.
Comment 4 Larry Finger 2012-01-05 02:48:18 UTC 
Created attachment 550799 [details]
Proposed patch to prevent BUG
Comment 5 John W. Linville 2012-01-06 19:21:05 UTC 
Test kernels w/ above patch building here:

http://koji.fedoraproject.org/koji/taskinfo?taskID=3625669

Peter, please give them a try and post the results here -- thanks!
Comment 6 John W. Linville 2012-01-11 18:53:43 UTC 
Peter, ping?  Koji won't keep those test kernels much longer...
Comment 7 Dave Jones 2012-03-22 16:57:07 UTC 
[mass update]
kernel-3.3.0-4.fc16 has been pushed to the Fedora 16 stable repository.
Please retest with this update.
Comment 8 Dave Jones 2012-03-22 17:01:04 UTC 
[mass update]
kernel-3.3.0-4.fc16 has been pushed to the Fedora 16 stable repository.
Please retest with this update.
Comment 9 Dave Jones 2012-03-22 17:12:19 UTC 
[mass update]
kernel-3.3.0-4.fc16 has been pushed to the Fedora 16 stable repository.
Please retest with this update.