Bug 1723275
| Summary: | The virt-resize command fails to expand swap partition | ||||||
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| Product: | Red Hat Enterprise Linux 8 | Reporter: | YongkuiGuo <yoguo> | ||||
| Component: | libguestfs | Assignee: | Richard W.M. Jones <rjones> | ||||
| Status: | CLOSED NEXTRELEASE | QA Contact: | YongkuiGuo <yoguo> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 8.1 | CC: | jsuchane, ptoscano, rjones | ||||
| Target Milestone: | rc | ||||||
| Target Release: | 8.1 | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2019-08-30 09:40:40 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: | |||||||
| Bug Depends On: | 1727270 | ||||||
| Bug Blocks: | |||||||
| Attachments: |
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hi rjones, could you take a look at this issue? Thanks. It does look like it might be a bug in LVM. Can I get access to the rhel8.0.raw image from somewhere? Have sent the detailed info about the image by email. Kernel version when broken was 4.18.0-107.el8.x86_64 I can reproduce this using: kernel 4.18.0-111.el8.x86_64 systemd-239-15.el8.x86_64 device-mapper-1.02.163-1.el8.x86_64 lvm2-2.03.05-1.el8.x86_64 libguestfs-1.38.4-13.module+el8.1.0+3531+2918145b.x86_64 Downgrading to these versions fixes the problem: device-mapper-1.02.155-6.el8.x86_64 lvm2-2.03.02-6.el8.x86_64 Here's a simpler reproducer in a couple of lines: $ guestfish sparse test1.img 100M : run : pvcreate /dev/sda : vgcreate VG /dev/sda : lvcreate boot VG 10 : lvcreate swap VG 10 : lvcreate root VG 10 ; truncate -s 1G test1.img This creates a ‘test1.img’ disk image. To reproduce the problem: $ guestfish --ro -a test1.img run : debug ll /dev/mapper With LVM2 2.03.05-1.el8 (the broken version) you will see only the control file: crw------- 1 root root 10, 236 Jul 5 10:02 control With LVM2 2.03.02-6.el8 (the working version) you will see the expected LVs: lrwxrwxrwx 1 root root 7 Jul 5 10:03 VG-boot -> ../dm-0 lrwxrwxrwx 1 root root 7 Jul 5 10:03 VG-root -> ../dm-2 lrwxrwxrwx 1 root root 7 Jul 5 10:03 VG-swap -> ../dm-1 crw------- 1 root root 10, 236 Jul 5 10:03 control So the problem appears to be a new test added to LVM2. With the broken LVM2 I see: pvscan[192] PV /dev/sda ignore for size 204800 not matching device 2097152. With non-broken LVM2 I do not see this warning and the pvscan operation completes. I believe this is a misguided attempt in LVM2 to add some checking. I will file a bug against LVM2. Thanks for providing the simpler reproducer and explanation. Verified with the packages: libguestfs-1.38.4-13.module+el8.1.0+3531+2918145b.x86_64 lvm2-2.03.05-2.el8.x86_64 Steps: 1. On latest rhel8.1.0 compose(RHEL-8.1.0-20190806.2) $ guestfish sparse test1.img 100M : run : pvcreate /dev/sda : vgcreate VG /dev/sda : lvcreate boot VG 10 : lvcreate swap VG 10 : lvcreate root VG 10 ; truncate -s 1G test1.img 2. $ guestfish --ro -a test1.img run : debug ll /dev/mapper ... lrwxrwxrwx 1 root root 7 Aug 8 03:31 VG-boot -> ../dm-0 lrwxrwxrwx 1 root root 7 Aug 8 03:31 VG-root -> ../dm-2 lrwxrwxrwx 1 root root 7 Aug 8 03:31 VG-swap -> ../dm-1 crw------- 1 root root 10, 236 Aug 8 03:31 control Verified this bug. Should it be in VERIFIED than? (In reply to Jaroslav Suchanek from comment #10) > Should it be in VERIFIED than? This issue is related to lvm2 bug #1727270. And the latest lvm2 works fine. So we can close this bug. I retested it with lvm2-2.03.05-4.el8.x86_64 and it works over here. Let's close this. |
Created attachment 1583875 [details] virt-resize output log Description of problem: The virt-resize fails to expand swap partition on latest rhel8.1.0 compose(RHEL-8.1.0-20190619.2). Version-Release number of selected component (if applicable): libguestfs-1.38.4-12.module+el8.1.0+3306+18be956d.x86_64 lvm2-2.03.05-1.el8.x86_64 How reproducible: 100% Steps: 1. On latest rhel8.1.0 compose(RHEL-8.1.0-20190619.2) # virt-filesystems -a rhel8.0.raw -lh --extra Name Type VFS Label Size Parent /dev/sda1 filesystem xfs - 1.0G - /dev/rhel_bootp-73-199-200/root filesystem xfs - 6.2G - /dev/rhel_bootp-73-199-200/swap filesystem swap - 820M - 2. # qemu-img create virt-resize-test.img 10G 3. # virt-resize -v -x --expand /dev/sda2 --LV-expand /dev/rhel_bootp-73-199-200/swap rhel8.0.raw virt-resize-test.img ... [ 59.1] Expanding /dev/rhel_bootp-73-199-200/swap using the ‘mkswap’ method libguestfs: trace: lvresize_free "/dev/rhel_bootp-73-199-200/swap" 100 guestfsd: => pvresize (0x62) took 0.12 secs guestfsd: <= lvresize_free (0xee) request length 80 bytes commandrvf: stdout=n stderr=y flags=0x0 commandrvf: udevadm --debug settle -E /dev/rhel_bootp-73-199-200/swap calling: settle is_device_parameter: stat: /dev/rhel_bootp-73-199-200/swap: No such file or directory guestfsd: error: lvresize_free_stub: /dev/rhel_bootp-73-199-200/swap: expecting a device name guestfsd: => lvresize_free (0xee) took 0.05 secs libguestfs: trace: lvresize_free = -1 (error) virt-resize: error: libguestfs error: lvresize_free: lvresize_free_stub: /dev/rhel_bootp-73-199-200/swap: expecting a device name 4.Downgrade the lvm2 packages to the prior version(lvm2-2.03.02-6.el8) and the virt-resize command works fine. Actual results: The virt-resize command fails to expand swap partition. Expected results: The virt-resize should be able to expand swap partition correctly. Additional info: