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Bug 1597307

Summary:	lvconvert --splitmirrors does not inform kernel of partition table changes
Product:	Red Hat Enterprise Linux 7	Reporter:	Roman Bednář <rbednar>
Component:	lvm2	Assignee:	David Teigland <teigland>
lvm2 sub component:	Mirroring and RAID	QA Contact:	cluster-qe <cluster-qe>
Status:	CLOSED DUPLICATE	Docs Contact:
Severity:	unspecified
Priority:	unspecified	CC:	agk, heinzm, jbrassow, msnitzer, prajnoha, prockai, zkabelac
Version:	7.6
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-07-18 18:50:14 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Roman Bednář 2018-07-02 14:27:00 UTC

SCENARIO - [mirror_split_fs_io_verification]
  Create 3-way mirror with simple fs data (checkit) and then split the images and verify
  virt-246: lvcreate  --type mirror -m 2 -n split_io_verify --nosync -L 4G mirror_sanity
    WARNING: New mirror won't be synchronised. Don't read what you didn't write!
  Placing a lock_nolock gfs2 filesystem on split_io_verify volume
  Mounting split_io_verify volume
  
  Writing files to /mnt/split_io_verify/virt-246
  Checking files on /mnt/split_io_verify/virt-246
  Writing files to /mnt/split_io_verify/virt-246
  Checking files on /mnt/split_io_verify/virt-246
  Writing files to /mnt/split_io_verify/virt-246
  Checking files on /mnt/split_io_verify/virt-246
  
  
  Splitting: lvconvert --splitmirrors 1 --name new1 mirror_sanity/split_io_verify
  Verifying new1 on virt-246
  mount: special device /dev/mirror_sanity/new1 does not exist
  couldn't mount new1 fs on /mnt/split_io_verify


===========================

# lvs -a
  LV                         VG            Attr       LSize   Pool Origin Data%  Meta%  Move Log                    Cpy%Sync Convert
  new1                       mirror_sanity -wi-a-----   4.00g                                                                       
  split_io_verify            mirror_sanity Mwi-a-m---   4.00g                                [split_io_verify_mlog] 100.00          
  [split_io_verify_mimage_0] mirror_sanity iwi-aom---   4.00g                                                                       
  [split_io_verify_mimage_1] mirror_sanity iwi-aom---   4.00g                                                                       
  [split_io_verify_mlog]     mirror_sanity lwi-aom---   4.00m                                                                       
  root                       rhel_virt-246 -wi-ao----   6.30g                                                                       
  swap                       rhel_virt-246 -wi-ao---- 832.00m                                                                       

# ls /dev/mirror_sanity/new1
ls: cannot access /dev/mirror_sanity/new1: No such file or directory

# partprobe

# ls /dev/mirror_sanity/new1
/dev/mirror_sanity/new1




3.10.0-915.el7.x86_64

lvm2-2.02.179-4.el7    BUILT: Tue Jun 26 15:35:45 CEST 2018
lvm2-libs-2.02.179-4.el7    BUILT: Tue Jun 26 15:35:45 CEST 2018
lvm2-cluster-2.02.179-4.el7    BUILT: Tue Jun 26 15:35:45 CEST 2018
cmirror-2.02.179-4.el7    BUILT: Tue Jun 26 15:35:45 CEST 2018
device-mapper-1.02.148-4.el7    BUILT: Tue Jun 26 15:35:45 CEST 2018
device-mapper-libs-1.02.148-4.el7    BUILT: Tue Jun 26 15:35:45 CEST 2018
device-mapper-event-1.02.148-4.el7    BUILT: Tue Jun 26 15:35:45 CEST 2018
device-mapper-event-libs-1.02.148-4.el7    BUILT: Tue Jun 26 15:35:45 CEST 2018
device-mapper-persistent-data-0.7.3-3.el7    BUILT: Tue Nov 14 12:07:18 CET 2017
date: invalid date ‘1970-01-01 UTC package sanlock-lib is not installed seconds’
vdo-6.1.1.99-2.el7    BUILT: Thu Jun 21 05:36:06 CEST 2018
kmod-kvdo-6.1.1.99-1.el7    BUILT: Thu Jun 21 05:40:52 CEST 2018
cryptsetup-2.0.3-1.el7    BUILT: Wed Jun 20 17:26:29 CEST 2018
cryptsetup-libs-2.0.3-1.el7    BUILT: Wed Jun 20 17:26:29 CEST 2018

Comment 2 David Teigland 2018-07-18 18:50:14 UTC


*** This bug has been marked as a duplicate of bug 1595875 ***