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start: always stop an existing $vmid.scope

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Checking for the cgroup directory is a kind of time-of-check
time-of-use race condition stop-mode backups seem to
occasionally run into on some systems.

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
This commit is contained in:
Wolfgang Bumiller 2018-02-16 12:44:58 +01:00 committed by Fabian Grünbichler
parent 230406dc52
commit 3c23aa808c
1 changed files with 5 additions and 4 deletions
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9
PVE/QemuServer.pm
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@ -4894,10 +4894,11 @@ sub vm_start {
PVE::Storage::activate_volumes($storecfg, $vollist); PVE::Storage::activate_volumes($storecfg, $vollist);
if (!check_running($vmid, 1) && -d "/sys/fs/cgroup/systemd/qemu.slice/$vmid.scope") { if (!check_running($vmid, 1)) {
my $cmd = []; eval {
push @$cmd, '/bin/systemctl', 'stop', "$vmid.scope"; run_command(['/bin/systemctl', 'stop', "$vmid.scope"],
eval { run_command($cmd); }; outfunc => sub {}, errfunc => sub {});
};
} }
my $cpuunits = defined($conf->{cpuunits}) ? $conf->{cpuunits} my $cpuunits = defined($conf->{cpuunits}) ? $conf->{cpuunits}