https://bugzilla.novell.com/show_bug.cgi?id=750927
https://bugzilla.novell.com/show_bug.cgi?id=750927#c2
--- Comment #2 from SA SA 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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