Wrt. disk read failure in Colin's report, looks the sectors themselves invoved
in timeout are good, becasue the following
test runs well in ms10-34 now:
sudo dd if=/dev/sda skip=9741420 iflag=direct of=/dev/null bs=512
count=1K
1024+0 records in
1024+0 records out
524288 bytes (524 kB) copied, 0.0767411 s, 6.8 MB/s
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https://bugs.launchpad.net/bugs/1469218
Title:
HP ProLiant m400 Server sda timeout causes file system hang
Status in linux package in Ubuntu:
Triaged
Bug description:
While running stress-ng on a ProLiant m400 Server I managed to cause
the disk controller to timeout which causes a file system hang. I am
wondering if the timeout was causes because I completely overloaded
the system causing it to be slow on ata handling times.
I ran:
stress-ng --all 64 -t 600 -v
and the machine slowly clogged up with stress processes, and finally
hit the hang. Had to reboot the system.
Attached is a kernel log.
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