Am 01.05.2014 14:12, schrieb Bruno Wolff III:
> On Thu, May 01, 2014 at 11:18:25 +0200,
> Reindl Harald <h.reindl@xxxxxxxxxxxxx> wrote:
>> has anybody else faced complete freezes of a machine
>> due raid-check? today the same as last thursday while
>> the freeze seems not to happen by the raid-check itself
>> according to running smokepings from outside which are
>> green until i try to use the machine
>
> I had something similar happen in pre-release kernels a few versions ago, but it got fixed and I am not seeing it now
interesting - thanks for feedback
i have faced this only on F20 with the recent 3.14 kernel which
is except the weekly raid-check hyperstable under any heavy
networking and/or IO load, what makes it hard to debug is that
it's not triggerable by starting raid-check manually
the only information i sadly can provide is partitioning / raid setup
[root@srv-rhsoft:~]$ df
Filesystem Type Size Used Avail Use% Mounted on
/dev/md1 ext4 29G 6.4G 23G 23% /
/dev/md0 ext4 485M 37M 444M 8% /boot
/dev/md2 ext4 3.6T 2.0T 1.6T 57% /mnt/data
[root@srv-rhsoft:~]$ cat /usr/local/bin/raid_status
#!/usr/bin/bash
echo "---------------------------------------------------------------------------------"
/sbin/mdadm --detail /dev/md0
echo "---------------------------------------------------------------------------------"
/sbin/mdadm --detail /dev/md1
echo "---------------------------------------------------------------------------------"
/sbin/mdadm --detail /dev/md2
echo "---------------------------------------------------------------------------------"
cat /proc/mdstat
echo "---------------------------------------------------------------------------------"
[root@srv-rhsoft:~]$ raid_status
---------------------------------------------------------------------------------
/dev/md0:
Version : 1.0
Creation Time : Wed Jun 8 13:10:48 2011
Raid Level : raid1
Array Size : 511988 (500.07 MiB 524.28 MB)
Used Dev Size : 511988 (500.07 MiB 524.28 MB)
Raid Devices : 4
Total Devices : 4
Persistence : Superblock is persistent
Update Time : Thu May 1 09:42:22 2014
State : clean, resyncing (DELAYED)
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Name : localhost.localdomain:0
UUID : 1d691642:baed26df:1d197496:4fb00ff8
Events : 651
Number Major Minor RaidDevice State
0 8 49 0 active sync /dev/sdd1
5 8 33 1 active sync /dev/sdc1
4 8 1 2 active sync /dev/sda1
3 8 17 3 active sync /dev/sdb1
---------------------------------------------------------------------------------
/dev/md1:
Version : 1.1
Creation Time : Wed Jun 8 13:10:52 2011
Raid Level : raid10
Array Size : 30716928 (29.29 GiB 31.45 GB)
Used Dev Size : 15358464 (14.65 GiB 15.73 GB)
Raid Devices : 4
Total Devices : 4
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Thu May 1 14:43:16 2014
State : active, resyncing (DELAYED)
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Layout : near=2
Chunk Size : 512K
Name : localhost.localdomain:1
UUID : b7475879:c95d9a47:c5043c02:0c5ae720
Events : 12359
Number Major Minor RaidDevice State
0 8 50 0 active sync set-A /dev/sdd2
5 8 34 1 active sync set-B /dev/sdc2
4 8 2 2 active sync set-A /dev/sda2
3 8 18 3 active sync set-B /dev/sdb2
---------------------------------------------------------------------------------
/dev/md2:
Version : 1.1
Creation Time : Wed Jun 8 13:10:56 2011
Raid Level : raid10
Array Size : 3875222528 (3695.70 GiB 3968.23 GB)
Used Dev Size : 1937611264 (1847.85 GiB 1984.11 GB)
Raid Devices : 4
Total Devices : 4
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Thu May 1 14:43:23 2014
State : active, checking
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Layout : near=2
Chunk Size : 512K
Check Status : 42% complete
Name : localhost.localdomain:2
UUID : ea253255:cb915401:f32794ad:ce0fe396
Events : 496336
Number Major Minor RaidDevice State
0 8 51 0 active sync set-A /dev/sdd3
5 8 35 1 active sync set-B /dev/sdc3
4 8 3 2 active sync set-A /dev/sda3
3 8 19 3 active sync set-B /dev/sdb3
---------------------------------------------------------------------------------
Personalities : [raid1] [raid10]
md2 : active raid10 sdd3[0] sda3[4] sdb3[3] sdc3[5]
3875222528 blocks super 1.1 512K chunks 2 near-copies [4/4] [UUUU]
[========>............] check = 42.9% (1665190848/3875222528) finish=278.2min speed=132374K/sec
bitmap: 3/29 pages [12KB], 65536KB chunk
md1 : active raid10 sda2[4] sdb2[3] sdd2[0] sdc2[5]
30716928 blocks super 1.1 512K chunks 2 near-copies [4/4] [UUUU]
resync=DELAYED
bitmap: 1/1 pages [4KB], 65536KB chunk
md0 : active raid1 sdb1[3] sda1[4] sdd1[0] sdc1[5]
511988 blocks super 1.0 [4/4] [UUUU]
resync=DELAYED
unused devices: <none>
---------------------------------------------------------------------------------
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