livedump: add an option for dump compression
AbandonedPublic
Actions

Authored by mhorne on Jan 27 2022, 9:35 PM.

Tags

None

Referenced Files

	Unknown Object (File)
	Sun, Aug 30, 6:04 AM

	Unknown Object (File)
	Fri, Aug 28, 4:44 PM

	Unknown Object (File)
	Fri, Aug 28, 4:34 PM

	Unknown Object (File)
	Sat, Aug 22, 8:51 AM

	Unknown Object (File)
	Wed, Aug 19, 7:06 AM

	Unknown Object (File)
	Tue, Aug 18, 12:36 PM

	Unknown Object (File)
	Aug 4 2026, 2:02 AM

	Unknown Object (File)
	Jul 1 2026, 4:00 PM

Subscribers

Details

Reviewers

markj
kib

Summary

Add the kern.livedump_compression sysctl specifying the desired
compression to be applied to live kernel minidumps. This will be
manipulated by savecore(8).

Diff Detail

Repository

rS FreeBSD src repository - subversion

Lint

Lint Passed

Unit

No Test Coverage

Build Status

Buildable 44129
Build 41017: arc lint + arc unit

Event Timeline

mhorne created this revision.Jan 27 2022, 9:35 PM

Herald added a subscriber: imp. · View Herald TranscriptJan 27 2022, 9:35 PM

mhorne requested review of this revision.Jan 27 2022, 9:35 PM

Harbormaster completed remote builds in B44129: Diff 102015.Jan 27 2022, 9:35 PM

mhorne added a parent revision: D34068: Split out dumper allocation from list insertion.Jan 27 2022, 9:35 PM

mhorne mentioned this in D34068: Split out dumper allocation from list insertion.Feb 2 2022, 3:45 PM

markj added inline comments.Feb 7 2022, 3:49 PM

sys/kern/kern_vnodedumper.c
92	The desire for this parameter is another sign that an ioctl is a better interface for the livedumper, IMO.

mhorne mentioned this in D34209: mem(4): allow configuring livedump via ioctl.Feb 8 2022, 8:19 PM

mhorne added inline comments.Feb 8 2022, 8:33 PM

sys/kern/kern_vnodedumper.c
92	Point taken, see D34209.

Now obsolete.

Revision Contents
Changeset List

Path

Size

sys/

kern/

kern_vnodedumper.c

43 lines

Diff 102015

View Options

sys/kern/kern_vnodedumper.c

livedump: add an option for dump compressionAbandonedPublicActions