Hi,
After testing with commit 7def0f952eccdd0edb3c504f4dab35ee0d3aba1f
("lib: fix data race in rhashtable_rehash_one") on the current 4.4-rc4
kernel, I believe I am still seeing race conditions that seem to bite
concurrent readers.
The reproducer is found in my stress-ng system stress tool:
git://kernel.ubuntu.com/cking/stress-ng.git
one needs libattr1-dev, libkeyutils-dev to build this.
run the concurrent procfs stressor on 2 CPUs:
./stress-ng --procfs 2
..sometimes this hangs w/o a kernel stack dump, but sometimes it oopses
and one can see that we get a concurrent reader failure.
Colin
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