Differential D33591

vfs_mountroot: Skip first 'Root mount waiting'
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Authored by cperciva on Dec 20 2021, 7:34 PM.

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Details

Reviewers: None
Commits: rGd4724934f2e4: vfs_mountroot: Skip 'Root mount waiting' < 1 s
rGe6db5eb9ec7b: vfs_mountroot: Skip 'Root mount waiting' < 1 s

Summary

While the message is technically correct, it's not particularly
helpful in the case where we're only waiting a few ms. This case
occurs frequently on EC2 arm64 instances with CAM initialization
racing to release its root hold before vfs_mountroot reaches this
point.

Sponsored by: https://www.patreon.com/cperciva

Diff Detail

Repository

rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

cperciva created this revision.Dec 20 2021, 7:34 PM

Herald added a subscriber: imp. · View Herald TranscriptDec 20 2021, 7:34 PM

cperciva requested review of this revision.Dec 20 2021, 7:34 PM

Harbormaster completed remote builds in B43507: Diff 100366.Dec 20 2021, 7:34 PM

cperciva added a child revision: D33592: vfs_mountroot: Wait for GEOM idle post root holds.Dec 20 2021, 7:34 PM

This revision was not accepted when it landed; it landed in state Needs Review.Dec 29 2021, 8:41 PM

Closed by commit rGe6db5eb9ec7b: vfs_mountroot: Skip 'Root mount waiting' < 1 s (authored by cperciva). · Explain Why

This revision was automatically updated to reflect the committed changes.

cperciva added a commit: rGe6db5eb9ec7b: vfs_mountroot: Skip 'Root mount waiting' < 1 s.

cperciva added a commit: rGd4724934f2e4: vfs_mountroot: Skip 'Root mount waiting' < 1 s.Jan 12 2022, 7:31 PM

Revision Contents
Changeset List

Path

Size

sys/

kern/

vfs_mountroot.c

1 line

Diff 100718

sys/kern/vfs_mountroot.c

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