Hello,
I have an issue with stalling writes that within a few seconds
ultimately lead to a full system freeze. Since all writes fail once the
condition has been triggered, there is no log output. Also dmesg remains
without errors.
My setup is as follows:
md127 : active raid10 sda1[0] sdd1[3] sdc1[2] sdb1[1]
3907023872 blocks super 1.2 512K chunks 2 near-copies [4/4]
[UUUU]
Linux 3.14.2-hardened-r1 #4 SMP PREEMPT
Dell Poweredge T20 Server
To trigger this condition, a resync of the array has to be running and
high disk IO needs to be performed in addition. The condition is
triggered regardless of the resync speed (tested with 1, 10 and 100
MB/s). I also tried different io schedulers and a non-preempt kernel.
Someone else over at Fedora reported a similiar problem:
http://www.spinics.net/linux/fedora/fedora-kernel/msg05163.html
How can I help with providing additional information so you can locate
the problem?
Thanks,
Christian
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