Messages in this thread | | | Subject | Re: [RFT PATCH] blkio: alloc per cpu data from worker thread context( Re: kvm deadlock) | From | Nate Custer <> | Date | Sun, 18 Dec 2011 15:25:48 -0600 |
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On Dec 16, 2011, at 2:29 PM, Vivek Goyal wrote: > Thanks for testing it Nate. I did some debugging and found out that patch > is doing double free on per cpu pointer hence the crash you are running > into. I could reproduce this problem on my box. It is just a matter of > doing rmdir on the blkio cgroup. > > I understood the cmpxchg() semantics wrong. I have fixed it now and > no crashes on directory removal. Can you please give this version a > try. > > Thanks > Vivek
After 24 hours of stress testing the machine remains up and working without issue. I will continue to test it, but am reasonably confident that this patch resolves my issue.
Nate Custer
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