Bug 841293

Summary: Bug: soft lockup ... kworker
Product: [openSUSE] openSUSE Tumbleweed Reporter: Don Hughes <support>
Component: KernelAssignee: David Sterba <dsterba>
Status: RESOLVED DUPLICATE QA Contact: E-mail List <qa-bugs>
Severity: Critical    
Priority: P5 - None CC: jeffm, lpechacek
Version: 13.1 Beta 1   
Target Milestone: ---   
Hardware: x86-64   
OS: openSUSE 12.3   
Whiteboard: btrfs:crash
Found By: --- Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---
Attachments: Kernel log
kernel log

Description Don Hughes 2013-09-19 13:15:19 UTC
Created attachment 559062 [details]
Kernel log

User-Agent:       Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20130917 Firefox/24.0 PaleMoon/24.0.1

Running kernel 3.11.0-27.g0a1c41f-default from Tumbleweed.

16 core system under load with significant disk I/O.


BUG: soft lockup - CPU#1 stuck for 22s! [kworker/u65:1:27938]
Sep 19 01:01:21 Owl2 kernel: [227524.179708] Modules linked in: af_packet vboxpci(O) vboxnetadp(O) vboxnetflt(O) binfmt_misc vboxdrv(O) hid_logitech_dj joydev hid_generic usbhid snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_pcm_oss snd_hda_codec snd_hwdep snd_pcm snd_seq snd_timer kvm_amd snd_seq_device kvm snd_mixer_oss ohci_pci ohci_hcd amd64_edac_mod ehci_pci sp5100_tco edac_core pcspkr serio_raw ehci_hcd snd edac_mce_amd k10temp i2c_piix4 usbcore sr_mod e1000e fglrx(PO) cdrom usb_common soundcore ptp sg snd_page_alloc pps_core amd_iommu_v2 shpchp button acpi_cpufreq mperf dm_mod autofs4 btrfs raid6_pq zlib_deflate xor libcrc32c processor thermal_sys scsi_dh_hp_sw scsi_dh_emc scsi_dh_rdac scsi_dh_alua scsi_dh ata_generic pata_atiixp
Sep 19 01:01:21 Owl2 kernel: [227524.179762] CPU: 1 PID: 27938 Comm: kworker/u65:1 Tainted: P           O 3.11.0-27.g0a1c41f-default #1
Sep 19 01:01:21 Owl2 kernel: [227524.179765] Hardware name: System manufacturer System Product Name/KGP(M)E-D16, BIOS 2202    03/29/2012
Sep 19 01:01:21 Owl2 kernel: [227524.179771] Workqueue: writeback bdi_writeback_workfn (flush-btrfs-1)                    

Full log attached


Reproducible: Sometimes

Steps to Reproduce:
1. Rebuild directory tree in virtual machine from subversion repository with about 100,000 files
2.
3.
Actual Results:  
System froze

Expected Results:  
System to run normally
Comment 1 Don Hughes 2013-09-20 10:06:45 UTC
Created attachment 559218 [details]
kernel log

Happened again on a completely idle system.  However, it happened at the same time as the previous crash.  Perhaps it is related to a system maintenance function.
Comment 2 Libor Pechacek 2017-01-04 08:42:29 UTC
Assume this issue was resolved via kernel upgrade.

*** This bug has been marked as a duplicate of bug 864430 ***