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Differential D51421

devd: Add vm_guest variable
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Authored by imp on Jul 19 2025, 5:33 AM.
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asomers

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eugen_grosbein.net
Summary

Fetch vm_guest on startup in case we're running in a jail.

PR: 287873
Sponsored by: Netflix

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rG FreeBSD src repository
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Build Status
Buildable 65578
Build 62461: arc lint + arc unit

Event Timeline

imp created this revision.Jul 19 2025, 5:33 AM
Herald added a subscriber: asomers. · View Herald TranscriptJul 19 2025, 5:33 AM
imp requested review of this revision.Jul 19 2025, 5:33 AM
Harbormaster completed remote builds in B65578: Diff 158779.Jul 19 2025, 5:33 AM
asomers added a comment.Jul 20 2025, 12:14 AM

The commit message says "jail". But kern.vm_guest doesn't change in a jail. Did you mean to say "in a VM"?

imp added a comment.Jul 20 2025, 4:56 AM
In D51421#1174366, @asomers wrote:

The commit message says "jail". But kern.vm_guest doesn't change in a jail. Did you mean to say "in a VM"?

yea. I gotta update that, and for the bug number and likely to set the author. I just ,cleaned uo the code from the pr. I was initially confused about the jail vs vm thing amd didn't update the comment once I'd sorted that out.

eugen_grosbein.net added a reviewer: eugen_grosbein.net.Jul 20 2025, 7:26 AM
eugen_grosbein.net added inline comments.Jul 20 2025, 7:28 AM
sbin/devd/devd.cc
1357

I've just noticed my patch has a mistake in this devdlog(), it should print "sysctlbyname" instead of "sysctlnametomib".

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sbin/
devd/
12 lines

Diff 158779

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sbin/devd/devd.cc

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