On 09/09/2016 08:56 PM, Artur Paszkiewicz wrote:
On 09/09/2016 12:56 AM, Shaohua Li wrote:
On Wed, Sep 07, 2016 at 02:43:41AM -0400, Yi Zhang wrote:
Hello
I tried create one IMSM RAID10 with missing, found lots of "md: export_rdev(sde)" printed, anyone could help check it?
Steps I used:
mdadm -CR /dev/md0 /dev/sd[b-f] -n5 -e imsm
mdadm -CR /dev/md/Volume0 -l10 -n4 /dev/sd[b-d] missing
Version:
4.8.0-rc5
mdadm - v3.4-84-gbd1fd72 - 25th August 2016
can't reproduce with old mdadm but can with upstream mdadm. Looks mdadm is
keeping write the new_dev sysfs entry.
Jes, any idea?
Thanks,
Shaohua
Log:
http://pastebin.com/FJJwvgg6
<6>[ 301.102007] md: bind<sdb>
<6>[ 301.102095] md: bind<sdc>
<6>[ 301.102159] md: bind<sdd>
<6>[ 301.102215] md: bind<sde>
<6>[ 301.102291] md: bind<sdf>
<6>[ 301.103010] ata3.00: Enabling discard_zeroes_data
<6>[ 311.714344] ata3.00: Enabling discard_zeroes_data
<6>[ 311.721866] md: bind<sdb>
<6>[ 311.721965] md: bind<sdc>
<6>[ 311.722029] md: bind<sdd>
<5>[ 311.733165] md/raid10:md127: not clean -- starting background reconstruction
<6>[ 311.733167] md/raid10:md127: active with 3 out of 4 devices
<6>[ 311.733186] md127: detected capacity change from 0 to 240060989440
<6>[ 311.774027] md: bind<sde>
<6>[ 311.810664] md: md127 switched to read-write mode.
<6>[ 311.819885] md: resync of RAID array md127
<6>[ 311.819886] md: minimum _guaranteed_ speed: 1000 KB/sec/disk.
<6>[ 311.819887] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for resync.
<6>[ 311.819891] md: using 128k window, over a total of 234435328k.
<6>[ 316.606073] ata3.00: Enabling discard_zeroes_data
<6>[ 343.949845] capability: warning: `turbostat' uses 32-bit capabilities (legacy support in use)
<6>[ 1482.314944] md: md127: resync done.
<7>[ 1482.315086] RAID10 conf printout:
<7>[ 1482.315087] --- wd:3 rd:4
<7>[ 1482.315089] disk 0, wo:0, o:1, dev:sdb
<7>[ 1482.315089] disk 1, wo:0, o:1, dev:sdc
<7>[ 1482.315090] disk 2, wo:0, o:1, dev:sdd
<7>[ 1482.315099] RAID10 conf printout:
<7>[ 1482.315099] --- wd:3 rd:4
<7>[ 1482.315100] disk 0, wo:0, o:1, dev:sdb
<7>[ 1482.315100] disk 1, wo:0, o:1, dev:sdc
<7>[ 1482.315101] disk 2, wo:0, o:1, dev:sdd
<7>[ 1482.315101] disk 3, wo:1, o:1, dev:sde
<6>[ 1482.315220] md: recovery of RAID array md127
<6>[ 1482.315221] md: minimum _guaranteed_ speed: 1000 KB/sec/disk.
<6>[ 1482.315222] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for recovery.
<6>[ 1482.315227] md: using 128k window, over a total of 117217664k.
<6>[ 2697.184217] md: md127: recovery done.
<7>[ 2697.524143] RAID10 conf printout:
<7>[ 2697.524144] --- wd:4 rd:4
<7>[ 2697.524146] disk 0, wo:0, o:1, dev:sdb
<7>[ 2697.524146] disk 1, wo:0, o:1, dev:sdc
<7>[ 2697.524147] disk 2, wo:0, o:1, dev:sdd
<7>[ 2697.524148] disk 3, wo:0, o:1, dev:sde
<6>[ 2697.524632] md: export_rdev(sde)
<6>[ 2697.549452] md: export_rdev(sde)
<6>[ 2697.568763] md: export_rdev(sde)
<6>[ 2697.587938] md: export_rdev(sde)
<6>[ 2697.607271] md: export_rdev(sdeautomate)
<6>[ 2697.626321] md: export_rdev(sdeautomateautomate)
<6>[ 2697.645676] md: export_rdev(sde)
<6>[ 2697.663211] md: export_rdev(sde)
<6>[ 2697.681603] md: export_rdev(sde)
<6>[ 2697.699117] md: export_rdev(sde)
<6>[ 2697.716510] md: export_rdev(sde)
Best Regards,
Yi Zhang
Can you check if this fix works for you? If it does I'll send a proper
patch for this.
Hello Artur
With your patch, no "md: export_rdev(sde)" printed after create raid10.
I found another problem, not sure whether it is reasonable, could you
help confirm it, thanks.
When I create one container with 4 disks[1], and create one raid10 with
3 disks(sd[b-d]) + 1 missing [2], but it finally bind the fourth disk:
sde [3].
[1] mdadm -CR /dev/md0 /dev/sd[b-e] -n4 -e imsm
[2] mdadm -CR /dev/md/Volume0 -l10 -n4 /dev/sd[b-d] missing --size=500M
[3] # cat /proc/mdstat
Personalities : [raid10]
md127 : active raid10 sde[4] sdd[2] sdc[1] sdb[0]
1024000 blocks super external:/md0/0 128K chunks 2 near-copies
[4/4] [UUUU]
md0 : inactive sde[3](S) sdd[2](S) sdc[1](S) sdb[0](S)
4420 blocks super external:imsm
unused devices: <none>
Thanks,
Artur
diff --git a/super-intel.c b/super-intel.c
index 92817e9..ffa71f6 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -7789,6 +7789,9 @@ static struct mdinfo *imsm_activate_spare(struct active_array *a,
IMSM_T_STATE_DEGRADED)
return NULL;
+ if (get_imsm_map(dev, MAP_0)->map_state == IMSM_T_STATE_UNINITIALIZED)
+ return NULL;
+
/*
* If there are any failed disks check state of the other volume.
* Block rebuild if the another one is failed until failed disks
--
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