Comment 5 for bug 1572291

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bugproxy (bugproxy) wrote : Comment bridged from LTC Bugzilla

------- Comment From <email address hidden> 2016-04-29 05:45 EDT-------
At first I reproduced this on kernel 4.4.0-15:

Creating workload:
cat /dev/urandom |gzip -9 > /dev/null &
cat /dev/urandom |gzip -9 > /dev/null &
ping 10.100.86.49

Let PCI device recover:
for i in `seq 1 100`; do echo 1 > /sys/bus/pci/devices/0000\:00\:00.0/recover; echo $i;sleep 1;done

On the 32nd recovery I got the kernel panic.
Retried that and on the 19th recovery the panic occured.

Updated system to 4.4.0-22.38 and performed the above steps. Problem did not occur after 2x 100 recoveries. Fix works. Waiting for integration into xenial stream.

@Canonical: Please integrate into xenial and yaketty stream.