A better reproducer is running stress-ng --procfs 0 on a multi-core
machine. Without the fix, it oopses in less than a second. With the
fix, it works perfectly, no oopsing.
Tested on 4.2.0-24-generic #29-Ubuntu, ran soak test for 600 seconds on
an 8 proc Xeon box:
stress-ng: info: [3044] successful run completed in 600.23s (10 mins, 0.23
secs)
stress-ng: info: [3044] stressor bogo ops real time usr time sys time
bogo ops/s bogo ops/s
stress-ng: info: [3044] (secs) (secs) (secs)
(real time) (usr+sys time)
stress-ng: info: [3044] procfs 8 600.00 151.83 4646.48
0.01 0.00
stress-ng: info: [3044] procfs:
** Tags removed: verification-needed-wily
** Tags added: verification-done-wily
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https://bugs.launchpad.net/bugs/1526811
Title:
SRU: walker list corruption while being intensively stressed
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