If this is user error I'd expect a discreet error message, but I don't
get one, just a hang during the reshape following successful --grow
command (going from 3x device raid5 to 4x device raid5).
# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4]
md127 : active raid5 loop3[4] loop2[3] loop1[1] loop0[0]
2095104 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/4] [UUUU]
[>....................] reshape = 0.0% (0/1047552)
finish=7.0min speed=2402K/sec
Reproduces with:
kernel-3.17.6-300.fc21.x86_64
mdadm-3.3.2-1.fc21.x86_64
and
3.18.0-2.fc22.i686+debug
mdadm-3.3.2-1.fc21.i686
Details are here:
https://bugzilla.kernel.org/show_bug.cgi?id=89851
--
Chris Murphy
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