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Cleanup dead systemd services before start sysroot.mount

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Resolves: bz1972463
Conflict: None
Upstream: Fedora

commit 2603ba7187 (origin/rawhide, rawhide)
Author: Kairui Song <kasong@redhat.com>
Date:   Fri Jul 2 03:27:05 2021 +0800

    Cleanup dead systemd services before start sysroot.mount

    When kdump failed due to initqueue timeout, the sysroot.mount and other
    serivces could be stuck in `start` but `dead` status:

    Example output of systemctl:

    dev-disk-by\x2duuid-530830d1\x2df2c7\x2d4c9a\x2d9a82\x2d148609097521.device loaded inactive   dead    start
    <... snip ...>
    squash-root.mount               loaded active     mounted       /squash/root
    squash.mount                    loaded active     mounted       /squash
    sysroot.mount                   loaded inactive   dead    start /sysroot
    <... snip ...>
    dracut-cmdline.service          loaded active     exited        dracut cmdline hook
    dracut-initqueue.service        loaded activating start   start dracut initqueue hook
    dracut-mount.service            loaded inactive   dead    start dracut mount hook

    At this point calling `systemctl start sysroot.mount` will just hang as
    systemd will just wait for the services that are stuck in `start`
    status. So call `systemctl cancel` here to cancel all pending jobs and
    have a clean start for mounting sysroot.

    Signed-off-by: Kairui Song <kasong@redhat.com>
    Acked-by: Coiby Xu <coxu@redhat.com>

Signed-off-by: Kairui Song <kasong@redhat.com>
This commit is contained in:
Kairui Song 2021-07-02 03:27:05 +08:00 committed by Tao Liu
parent 396e92f397
commit da6b280a63
1 changed files with 2 additions and 0 deletions
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2
kdump-lib-initramfs.sh
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@ -227,6 +227,8 @@ dump_to_rootfs()
systemctl start dracut-initqueue systemctl start dracut-initqueue
fi fi
dinfo "Clean up dead systemd services"
systemctl cancel
dinfo "Waiting for rootfs mount, will timeout after 90 seconds" dinfo "Waiting for rootfs mount, will timeout after 90 seconds"
systemctl start sysroot.mount systemctl start sysroot.mount