Re: [RFT PATCH] blkio: alloc per cpu data from worker thread context( Re: kvm deadlock)

2011-12-18 Thread Nate Custer
will continue to test it, but am reasonably confident that this patch resolves my issue. Nate Custer-- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

Re: [RFT PATCH] blkio: alloc per cpu data from worker thread context( Re: kvm deadlock)

2011-12-16 Thread Nate Custer
On Dec 15, 2011, at 1:47 PM, Vivek Goyal wrote: > Ok, I continued to develop on the patch which tries to allocate per cpu > stats from worker thread context. Here is the patch. > > Can the reporter please try out the patch and see if it helps. I am not > sure if deadlock was because of mutex issu

Re: kvm deadlock

2011-12-14 Thread Nate Custer
The issue happened with two servers (same hardware, same build group so there is a chance of a bad hardware batch). Switching to an older kernel/kvm setup in RHEL 6.2 has corrected the issue, which suggests a software issue to me. Nate Custer -- To unsubscribe from this list: send the line "

kvm deadlock

2011-12-05 Thread Nate Custer
, including SysRq commands. I have seen this behavior on two machines (dual E5606 running Fedora 16) both passed cpuburnin testing and memtest86 scans without error. I have reproduced the crash and stack traces from a Fedora debugging kernel - 3.1.2-1 and with a vanilla 3.1.4 kernel. Nate