Sometimes on Fuel CI deb package builds fail on sbuild chroot step
https://ci.fuel-infra.org/job/master.fuel-web.pkgs.ubuntu.review_fuel_web_deploy/687/console
It is currently 100% reproducible on ci-slave07-scc
jenkins@ci-slave07-scc:~$ ps aux | grep sbuild
jenkins 17482 0.0 0.0 108092 9276 ? Sl 20:33 0:00 docker run --dns 8.8.8.8 --privileged --rm -v /var/cache/docker-builder/sbuild:/srv/images sbuild:latest bash -c sbuild-update -udcar trusty
root 17488 0.3 0.0 73192 20944 ? Ss 20:33 0:00 /usr/bin/perl -w /usr/bin/sbuild-update -udcar trusty
root 17638 0.0 0.0 103376 5068 ? S 20:33 0:00 schroot -d / -c trusty-amd64-sbuild-51d0b26a-586c-42a2-b012-4d1d948ffa06 --run-session -q -u root -p -- perl -e use strict; use warnings; use POSIX; use FileHandle; my $lockfile="/var/lock/sbuild"; my $try = 0; repeat: if (!sysopen( F, $lockfile, O_WRONLY|O_CREAT|O_TRUNC|O_EXCL, 0644 )){ .if ($! == EEXIST) { . # lock file exists, wait . goto repeat if !open( F, "<$lockfile" ); . my $line = <F>; . my ($job, $pid, $user); . close( F ); . if ($line !~ /^(\S+)\s+(\S+)\s+(\S+)/) { ..print STDERR "Bad lock file contents ($lockfile) -- still trying\n"; . } else { ..($job, $pid, $user) = ($1, $2, $3); ..if (kill( 0, $pid ) == 0 && $! == ESRCH) { .. # process no longer exists, remove stale lock .. print STDERR "Removing stale lock file $lockfile ". ..."(job $job, pid $pid, user $user)\n"; .. if (!unlink($lockfile)) { ...if ($! != ENOENT) { ... print STDERR "Cannot remove chroot lock file $lockfile: $!\n"; ... exit 1; ...} .. } ..} . } . ++$try; . if ($try > 120) { ..print STDERR "Lockfile $lockfile still present after " . .. 120 * 5 . " seconds -- giving up\n"; ..exit 1; . } . print STDERR "Another sbuild process (job $job, pid $pid by user $user) is currently using the build chroot; waiting...\n" ..if $try == 1; . sleep 5; . goto repeat; .} else { . print STDERR "Failed to create lock file $lockfile: $!\n"; . exit 1; .} } F->print("SBUILD_UPDATE 1 root\n"); F->close(); exit 0;
root 17639 0.0 0.0 25964 4336 ? S 20:33 0:00 perl -e use strict; use warnings; use POSIX; use FileHandle; my $lockfile="/var/lock/sbuild"; my $try = 0; repeat: if (!sysopen( F, $lockfile, O_WRONLY|O_CREAT|O_TRUNC|O_EXCL, 0644 )){ .if ($! == EEXIST) { . # lock file exists, wait . goto repeat if !open( F, "<$lockfile" ); . my $line = <F>; . my ($job, $pid, $user); . close( F ); . if ($line !~ /^(\S+)\s+(\S+)\s+(\S+)/) { ..print STDERR "Bad lock file contents ($lockfile) -- still trying\n"; . } else { ..($job, $pid, $user) = ($1, $2, $3); ..if (kill( 0, $pid ) == 0 && $! == ESRCH) { .. # process no longer exists, remove stale lock .. print STDERR "Removing stale lock file $lockfile ". ..."(job $job, pid $pid, user $user)\n"; .. if (!unlink($lockfile)) { ...if ($! != ENOENT) { ... print STDERR "Cannot remove chroot lock file $lockfile: $!\n"; ... exit 1; ...} .. } ..} . } . ++$try; . if ($try > 120) { ..print STDERR "Lockfile $lockfile still present after " . .. 120 * 5 . " seconds -- giving up\n"; ..exit 1; . } . print STDERR "Another sbuild process (job $job, pid $pid by user $user) is currently using the build chroot; waiting...\n" ..if $try == 1; . sleep 5; . goto repeat; .} else { . print STDERR "Failed to create lock file $lockfile: $!\n"; . exit 1; .} } F->print("SBUILD_UPDATE 1 root\n"); F->close(); exit 0;
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