I've run the following test:
while true
> do
> cat link_power_management_policy
> echo max_performance | sudo tee link_power_management_policy
> sleep 3
> echo min_power | sudo tee link_power_management_policy
> sleep 3
> done
While this loop is running, I've created some artificial fs activity:
while true
> do
> cat /boot/vmlinuz-2.6.38-020638rc5-generic > /dev/null
> sleep 1
> done
And also:
for n in $(seq 0 9)
> do
> sudo find /usr -type f -iname \*$n\* -exec cat {} > /dev/null \;
> done
I have found no signs of excepetion Emask in kern.log, the test was run
for more than 2 hours.
For completeness, uname -a:
Linux spitfire 2.6.38-020638rc5-generic #201102160907 SMP Wed Feb 16
10:18:56 UTC 2011 i686 GNU/Linux
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/539467
Title:
SATA link power management causes disk errors and corruption
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
