NeilBrown <neilb@xxxxxxx> writes: > On Mon, 2 Feb 2015 07:10:14 +0000 Manibalan P <pmanibalan@xxxxxxxxxxxxxx> > wrote: > >> Dear All, >> Any updates on this issue. > > Probably the same as: > > http://marc.info/?l=linux-raid&m=142283560704091&w=2 Hi Neil, I ran some tests on this one against the latest Linus' tree as of today (1fa185ebcbcefdc5229c783450c9f0439a69f0c1) which I believe includes all your pending 3.20 patches. I am able to reproduce Manibalan's hangs on a system with 4 SSDs if I run fio on top of a device while it is resyncing and I fail one of the devices. I can reproduce the issue for raid4 and raid5, but I don't see it if I I use a raid6. The following sequence consistently reproduces the problem for me: mdadm -C /dev/md111 -f -e 1.2 -l5 -n4 /dev/sd[ghij]3 fio --name=md111 --filename=/dev/md111 --thread --numjobs=10 --direct=1 --group_reporting --unlink=0 --loops=1 --offset=0 --randrepeat=1 --norandommap --scramble_buffers=1 --stonewall --rw=randwrite --bs=8704 --iodepth=4000 --runtime=3000 --blockalign=512 mdadm /dev/md111 -f /dev/sdg3 Cheers, Jes -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
