fuser and lsof can only report open files of active processes.
You should check the following as well:
grep c13537_2k /proc/{mounts,swaps}
dmsetup table|grep 252:6
losetup -a | grep dm-6
Heinz
On 10/19/2015 05:16 PM, Nikolay Borisov wrote:
On 10/19/2015 05:51 PM, Heinz Mauelshagen wrote:Nikolay, this is a question for linux-lvm.Right, will know from now on .You're saying the fs is not mounted but the lv is open as of your lvdisplay output, thus you can't lvremove it.How can I see which is the actual user of it? As I stated previously fuser and lsof didn't show anything relevant. Is there some additional tools from the lvm suite that I can see to obtain such information?Heinz On 10/16/2015 02:24 PM, Nikolay Borisov wrote:Hello I have the following thin volume, which I'd like to delete: lvdisplay -v /dev/coregroup/c13537_2k Using logical volume(s) on command line. --- Logical volume --- LV Path /dev/coregroup/c13537_2k LV Name c13537_2k VG Name coregroup LV UUID LBPr0i-uac8-i3Co-5B3M-A6Bv-q8iv-kSRLRr LV Write Access read/write LV Creation host, time xxxxx.net, 2015-10-14 02:02:45 -0500 LV Pool name corepool LV Status available # open 1 LV Size 1.80 TiB Mapped size 42.11% Current LE 471808 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 252:6 dmsetup info coregroup-c13537_2k Name: coregroup-c13537_2k State: ACTIVE Read Ahead: 256 Tables present: LIVE Open count: 1 Event number: 1 Major, minor: 252, 6 Number of targets: 1 UUID: LVM-M8PwSxzGcsZQTtdgzfixsr08ZAlNpAbALBPr0iuac8i3Co5B3MA6Bvq8ivkSRLRr dmsetup status coregroup-c13537_2k: 0 3865051136 thin 1627684864 3865042943 The version of the software is: lvremove --version LVM version: 2.02.118(2)-RHEL6 (2015-09-08) Library version: 1.02.95-RHEL6 (2015-09-08) Driver version: 4.26.0 And the kernel is 3.12.47. When I run 'lvremove -f /dev/coregroup/c13537_2k' I get the following error: Logical volume coregroup/c13537_2k contains a filesystem in use. I also get the same error when I try to deactivate the volume. fuser doesn't report anything and the volume is not mounted anywhere. I have also acquired an ftrace trace from executing lvremove but there are multiple invocation of the dm_ioctl function and I'm not sure which one is the relevant. So if you tell me what information in particular you need I'd post it here. Regards, Nikolay -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel-- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
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