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Bug 1738446 - thin_repair repairs metadata but with the transaction_id set to 1
Summary: thin_repair repairs metadata but with the transaction_id set to 1
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: lvm2
Version: 7.6
Hardware: Unspecified
OS: Unspecified
high
medium
Target Milestone: rc
: ---
Assignee: nikhil kshirsagar
QA Contact: cluster-qe@redhat.com
URL:
Whiteboard:
: 1735358 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-08-07 08:09 UTC by nikhil kshirsagar
Modified: 2023-09-15 00:18 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-11-11 21:52:17 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Comment 7 Joe Thornber 2019-10-07 10:04:47 UTC 
The transaction_id means nothing to the kernel dm-thin code.  It's just a number that's set by the volume manager driving it (LVM in this case).

It's stored in the superblock.  If the superblock is accidentally rolled back (ie. double concurrent activation), or corrupted, then the tools have no way of knowing what the transaction id should be.

So the only solution is to have the expected transaction id passed on the command line to thin_repair and 'thin_dump --repair'.

Assigning to Nikhil since he's already working on improving superblock recovery.
Comment 12 jhouston 2019-11-13 14:17:02 UTC 
*** Bug 1735358 has been marked as a duplicate of this bug. ***
Comment 14 Chris Williams 2020-11-11 21:52:17 UTC 
Red Hat Enterprise Linux 7 shipped it's final minor release on September 29th, 2020. 7.9 was the last minor releases scheduled for RHEL 7.
From intial triage it does not appear the remaining Bugzillas meet the inclusion criteria for Maintenance Phase 2 and will now be closed. 

From the RHEL life cycle page:
https://access.redhat.com/support/policy/updates/errata#Maintenance_Support_2_Phase
"During Maintenance Support 2 Phase for Red Hat Enterprise Linux version 7,Red Hat defined Critical and Important impact Security Advisories (RHSAs) and selected (at Red Hat discretion) Urgent Priority Bug Fix Advisories (RHBAs) may be released as they become available."

If this BZ was closed in error and meets the above criteria please re-open it flag for 7.9.z, provide suitable business and technical justifications, and follow the process for Accelerated Fixes:
https://source.redhat.com/groups/public/pnt-cxno/pnt_customer_experience_and_operations_wiki/support_delivery_accelerated_fix_release_handbook  

Feature Requests can re-opened and moved to RHEL 8 if the desired functionality is not already present in the product. 

Please reach out to the applicable Product Experience Engineer[0] if you have any questions or concerns.  

[0] https://bugzilla.redhat.com/page.cgi?id=agile_component_mapping.html&product=Red+Hat+Enterprise+Linux+7
Comment 16 Red Hat Bugzilla 2023-09-15 00:18:02 UTC 
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 500 days
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