Mailinglist Archive: opensuse-bugs (5061 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=750927

https://bugzilla.novell.com/show_bug.cgi?id=750927#c2


--- Comment #2 from SA SA <dav1dblunk3tt@xxxxxxxxxxx> 2012-03-09 20:36:49 UTC 
---
I'm afraid I just googled  jbd2/sda3-8 to find the patch!

echo 1 >/sys/kernel/debug/tracing/events/ext4/ext4_mark_inode_dirty/enable
echo 1 >/sys/kernel/debug/tracing/events/ext4/ext4_write_begin/enable
cat /sys/kernel/debug/tracing/trace_pipe

I did this and got:

         konsole-2666  [001]   673.607409: ext4_mark_inode_dirty: dev 8,1 ino
786728 caller ext4_dirty_inode+0x38/0x70 [ext4] 

continuous scrolling up the screen - I suspect it is the konsole the command
was running in...

Running

cat /sys/kernel/debug/tracing/trace_pipe |grep -v 2666 > /tmp/trace_pipe1
allowed me to identify lots of things accessing the disk and by shutting them
down one by one 

The one thing that seemed to make a difference was closing down the packagekit
daemon - this seems to respawn every few seconds and trigger the disk.

I'll post the /sys/kernel/debug/tracing/trace_pipe info with and without
packagekitd running shortly

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