Comment 25 for bug 528981

Bugzilla bug #14543 describes a very similar issue involving ata flushing which is RESOLVED and available in patch "libata: retry failed FLUSH if device didn't fail it" which is applied from kernel 2.6.33-rc1
http://mirror.celinuxforum.org/gitstat//commit-detail.php?commit=6013efd8860bf15c1f86f365332642cfe557152f

The bug report https://bugzilla.kernel.org/show_bug.cgi?id=14543 also has a script that repeatably creates the read-only effect, but I can not get this script to create the effect here - can anyone create a script that reliably replicates this fault?

Comment #7 From Andrey Vihrov 2009-11-05 09:43:18 -------

Created an attachment (id=23658) [details]
dmesg with ext4 failure

Yes. I was able to trigger it by running two scripts in parallel:

while true; do
    echo > test
    && sync
    && rm test
    && sync
    || break ;
done

and

while true; do
    for FILE in /sys/class/scsi_host/*/link_power_management_policy; do echo
"min_power" > ${FILE} && echo "max_performance" > ${FILE}; done
    && sleep 1 ;
done