[dm-devel] Unable to deactivate lv, pehaps due to semaphore problem...
zkabelac at redhat.com
Thu Nov 27 15:24:16 UTC 2014
Dne 27.11.2014 v 16:01 Gianluca Cecchi napsal(a):
> On Thu, Nov 27, 2014 at 3:33 PM, Zdenek Kabelac <zkabelac at redhat.com
> <mailto:zkabelac at redhat.com>> wrote:
> Dne 27.11.2014 v 15:26 Gianluca Cecchi napsal(a):
> I'm unable to deactivate an lvm.
> My system is RHEL 6.5 with lvm2-2.02.100-8.el6.x86_64 and kernel
> I get error code 5 with message
> Logical volume VG_AAA_TEMP/LV_AAA_TEMP in use.
> You can find output of
> lvchange -d -d -d -d -d -d -an VG_AAA_TEMP/LV_AAA_TEMP
> Not really accessible.
> strange, do you mean the google docs link?
> I tried with a browser without access to any gmail account and I'm able to
> download it....
Ahh - I'd too strict adblock filter - however passed info is not that useful.
Prefered output is 'lvchange -vvvv -an'
> But anyway - if you have problem with 'semaphore' resouces - you could
> 'recycle' old ones -
> 'dmsetup udevcomplete_all'
> This is actually a production server with many other LVs... Is there any
> drawback in the command above?
You could 'complete' all cookies older then i.e. 1 minute.
Nothing should be holding cookie for that long time.
> Nov 26 17:35:34 orapr2 rgmanager: [lvm] lv_activate_resilient stop
> failed on VG_AAA_TEMP/LV_AAA_TEMP
> Nov 26 17:35:34 orapr2 rgmanager: [lvm] Unable to deactivate
Well - here we need to know the reason why it has failed -
Is there some user of VG_AAA_TEMP/LV_AAA_TEMP ?
Mounted, opened, used as a device for something else ?
> [root at orapr2 ~]# lvs VG_AAA_TEMP/LV_AAA_TEMP
> LV VG Attr LSize Pool Origin Data%
> Move Log
> Cpy%Sync Convert
> LV_AAA_TEMP VG_AAA_TEMP -wi-ao---- 1020.00m
> How can I see the responsible for the reference that apparently keeps
> it open?
> Open count: 1
> so I can check and eventually fix??
lsof - look for user of 253,49
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