Howdy,
The RHEL6.3 release notes have a curious entry:
http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Technical_Notes/kernel_issues.html
kernel component
Due to a race condition, in certain cases, writes to RAID4/5/6 while the
array is reconstructing could hang the system
Wow, I am reproducing it frequently here. Simply have a RAID-5 software
array and do some write IO to it, eventually things start hanging and the
power button needs to be pressed.
Oh man.
daryl
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