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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
fi
dinfo "Clean up dead systemd services"
systemctl cancel
dinfo "Waiting for rootfs mount, will timeout after 90 seconds"
systemctl start sysroot.mount