[Bug 729856] New: btrfs has blocked task btrfs-endio-wri for more than 480 sec
https://bugzilla.novell.com/show_bug.cgi?id=729856 https://bugzilla.novell.com/show_bug.cgi?id=729856#c0 Summary: btrfs has blocked task btrfs-endio-wri for more than 480 sec Classification: openSUSE Product: openSUSE 12.1 Version: Final Platform: x86-64 OS/Version: SuSE Other Status: NEW Severity: Normal Priority: P5 - None Component: Firefox AssignedTo: bnc-team-mozilla@forge.provo.novell.com ReportedBy: melchiaros@aol.com QAContact: qa@suse.de Found By: --- Blocker: --- Created an attachment (id=461681) --> (http://bugzilla.novell.com/attachment.cgi?id=461681) yast2 message, warn, zypper, other User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20100101 Firefox/7.0.1 I´ve just looked in the kernel logs of openSUSE12.1 RC2 with zypper dup to 11.11.2011. There were some entries affecting btrfs. It starts with: Nov 10 20:08:57 linux-3h1d kernel: [ 1920.333229] INFO: task btrfs-endio-wri:254 blocked for more than 480 seconds. Nov 10 20:08:57 linux-3h1d kernel: [ 1920.333240] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Nov 10 20:08:57 linux-3h1d kernel: [ 1920.333259] ffff88003748dcd0 0000000000000046 ffff88003748ddb8 ffff88003748dfd8 .. The functionality is not affected as far as I can see. I attach the logs. Reproducible: Always Steps to Reproduce: 1. 2. 3. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=729856 https://bugzilla.novell.com/show_bug.cgi?id=729856#c Wolfgang Rosenauer <wolfgang@rosenauer.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Component|Firefox |Kernel AssignedTo|bnc-team-mozilla@forge.prov |kernel-maintainers@forge.pr |o.novell.com |ovo.novell.com -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=729856 https://bugzilla.novell.com/show_bug.cgi?id=729856#c David Sterba <dsterba@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED CC| |dsterba@suse.com AssignedTo|kernel-maintainers@forge.pr |dsterba@suse.com |ovo.novell.com | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=729856 https://bugzilla.novell.com/show_bug.cgi?id=729856#c1 --- Comment #1 from melchiaros melchiaros <melchiaros@aol.com> 2011-11-12 17:01:01 UTC --- There are some other blocked tasks in the logs(new one from yesterday): e.g: Nov 11 23:16:24 linux-3h1d kernel: [29291.185782] INFO: task kworker/1:0:1696 blocked for more than 480 seconds. Nov 11 23:16:24 linux-3h1d kernel: [29291.185787] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Nov 11 23:16:24 linux-3h1d kernel: [29291.185811] ffff880024a05c50 0000000000000046 ffff8800378c0300 ffff880024a05fd8 Nov 11 23:16:24 linux-3h1d kernel: [29291.185820] 0000000000000086 ffff880024a05fd8 ffff880024a05fd8 ffff880024a05fd8 Nov 11 23:16:24 linux-3h1d kernel: [29291.185829] ffff8800378c0300 ffff880024a022c0 ffff880024a05c70 ffff880024a05da0 I attach also the logs for this. There is also more stuff on brtfs. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=729856 https://bugzilla.novell.com/show_bug.cgi?id=729856#c2 --- Comment #2 from melchiaros melchiaros <melchiaros@aol.com> 2011-11-12 17:07:30 UTC --- Created an attachment (id=461808) --> (http://bugzilla.novell.com/attachment.cgi?id=461808) new logs with more blocked stuff -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=729856 https://bugzilla.novell.com/show_bug.cgi?id=729856#c3 David Sterba <dsterba@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO InfoProvider| |melchiaros@aol.com --- Comment #3 from David Sterba <dsterba@suse.com> 2011-11-16 01:39:19 CET --- I think that there is some high load on your system and btrfs processes are not fast enough with writing data and the INFO messages appear. Can you match the messages to some specific load? Cron/zypper up/compilation/syncing/backups/... Other messages in the log seem harmless, or just informative. Btrfs is currently a bit slow with synchronous operations, this is being worked on. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=729856 https://bugzilla.novell.com/show_bug.cgi?id=729856#c4 melchiaros melchiaros <melchiaros@aol.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |ASSIGNED InfoProvider|melchiaros@aol.com | --- Comment #4 from melchiaros melchiaros <melchiaros@aol.com> 2011-11-16 16:20:28 UTC --- Yes, I´ve extensively used yast2/zyyper for installing nearly all patterns that are available and there debuginfo packages. So, there was big activity on the btrfs from this side. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=729856 https://bugzilla.novell.com/show_bug.cgi?id=729856#c5 David Sterba <dsterba@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |WONTFIX --- Comment #5 from David Sterba <dsterba@suse.com> 2011-11-23 13:44:34 CET --- So it's not a bug, the filesystem is just not progressing fast enough. Synchronous operations are slow in btrfs now, package installers tend to sync a lot. This should change in the future, there's a patch improving that but has not been merged for 3.2 . -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
participants (1)
-
bugzilla_noreply＠novell.com