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| author | Colin Percival <cperciva@FreeBSD.org> | 2021-12-20 17:51:34 +0000 |
|---|---|---|
| committer | Colin Percival <cperciva@FreeBSD.org> | 2022-01-12 19:29:48 +0000 |
| commit | 72f61780a47dd6b299b30787ad7ac8cc68e83a65 (patch) | |
| tree | 1a6e51edbb71e0a740e14b70c3e6ad6d24296ea5 | |
| parent | d4724934f2e41c850c0e714ebb89f888252b0ddd (diff) | |
| download | src-72f61780a47dd6b299b30787ad7ac8cc68e83a65.tar.gz src-72f61780a47dd6b299b30787ad7ac8cc68e83a65.zip | |
vfs_mountroot: Wait for GEOM idle post root holds
In the case of a root hold related to the initialization of a disk
device, a flurry of GEOM tasting is likely to take place as soon as
the device is initialized and the root hold is released. If we
don't wait for GEOM idle it's easy for vfs_mountroot to "win" the
race and proceed before the root filesystem GEOM is ready.
Reviewed by: imp
Sponsored by: https://www.patreon.com/cperciva
Differential Revision: https://reviews.freebsd.org/D33592
(cherry picked from commit 19a172158cc12b3bdd848fead732f2151c36e526)
| -rw-r--r-- | sys/kern/vfs_mountroot.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/kern/vfs_mountroot.c b/sys/kern/vfs_mountroot.c index 3ea9a7397d06..851a9c839669 100644 --- a/sys/kern/vfs_mountroot.c +++ b/sys/kern/vfs_mountroot.c @@ -1006,6 +1006,7 @@ vfs_mountroot_wait(void) hz); TSUNWAIT("root mount"); } + g_waitidle(); TSEXIT(); } |