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Bug 2170286 - crash tool supports parsing the maple tree data structures and functions
Summary: crash tool supports parsing the maple tree data structures and functions
Keywords:
Status: CLOSED MIGRATED
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: crash
Version: 9.3
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: ltao
QA Contact: xiaoying yan
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-02-16 02:50 UTC by lijiang
Modified: 2023-09-25 18:57 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2023-09-25 18:57:50 UTC
Type: Bug
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker   RHEL-8747 0 None Migrated None 2023-09-25 18:57:41 UTC
Red Hat Issue Tracker RHELPLAN-148799 0 None None None 2023-02-16 02:52:53 UTC

Description lijiang 2023-02-16 02:50:55 UTC
Description of problem:

The maple tree is introduced into upstream kernel 6.1:
[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=524e00b36e8c547f5582eef3fb645a8d9fc5e3df
[2]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=763ecb035029f500d7e6dc99acd1ad299b7726a1
    
Crash tool needs to support parsing the vmcore with a maple tree feature, otherwise some crash commands may not work, such as vm and fuser.

In ddition, the tree command can also dump the maple tree information.

Related crash patches:

872cad2d63b3 ("Port the maple tree data structures and functions")
16a696762cbf ("Add maple tree support to "tree" command")
222176a0a6c1 ("Add do_maple_tree() for maple tree operations")
9efc1f68a44f ("Introduce maple tree vma iteration to vm_area_dump()")
49f6c2095d82 ("Update the help text of "tree" command for maple tree")
46344aa2f92b ("Dump maple tree offset variables by "help -o"")



Version-Release number of selected component (if applicable):


How reproducible:


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Comment 5 ltao 2023-05-31 01:41:52 UTC
We will defer the bz to rhel9.4 due to https://bugzilla.redhat.com/show_bug.cgi?id=2166668#c31.

Comment 7 RHEL Program Management 2023-09-25 17:50:41 UTC
Issue migration from Bugzilla to Jira is in process at this time. This will be the last message in Jira copied from the Bugzilla bug.

Comment 8 RHEL Program Management 2023-09-25 18:57:50 UTC
This BZ has been automatically migrated to the issues.redhat.com Red Hat Issue Tracker. All future work related to this report will be managed there.

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