Julien Moutinho <[email protected]> wrote: > With Inline::C, and with Nix's sandbox > -------------------------------------- > > Using (in pkgs/servers/mail/public-inbox/default.nix): > > preCheck = '' > > perl certs/create-certs.perl > > export HOME=$(mktemp -d) > > mkdir -p $HOME/.cache/public-inbox/inline-c > > ''; > > $ nix -L build -f . public-inbox > > [...] > > perl5.34.0-public-inbox> t/lei-refresh-mail-sync.t .... ok > Hangs like forever after this line, while on t/lei-sigpipe.t: > > $ ps auxwwf > > root 1755997 0.0 0.0 453172 2800 ? Ssl déc.04 0:03 > > nix-daemon --daemon > > root 1811429 0.0 0.0 453652 1928 ? Ssl déc.04 0:00 \_ > > nix-daemon 1757028 > > root 1811455 0.0 0.0 453652 2004 ? Ssl déc.04 0:00 \_ > > nix-daemon 1757031 > > root 1839837 0.0 0.0 453652 1832 ? Ssl déc.04 0:00 \_ > > nix-daemon 1757027 > > root 1839841 0.0 0.0 453652 1996 ? Ssl déc.04 0:00 \_ > > nix-daemon 1757030 > > root 1839856 0.0 0.0 453652 1832 ? Ssl déc.04 0:00 \_ > > nix-daemon 1757029 > > root 3135741 0.0 0.2 603352 17080 ? Ssl 01:05 0:00 \_ > > nix-daemon 3135672 > > nixbld1 3137110 0.0 0.0 5200 4072 ? Ss 01:05 0:01 \_ > > bash -e /nix/store/qf3mzpvsmkrw963xchbivcci06078n13-builder.sh > > nixbld1 3140619 0.0 0.0 4996 4012 ? S 01:05 0:00 > > \_ make > > SHELL=/nix/store/l0wlqpbsvh1pgvhcdhw7qkka3d31si7k-bash-5.1-p8/bin/bash > > VERBOSE=y test > > nixbld1 3140633 0.0 0.1 17188 13352 ? S 01:05 0:01 > > | \_ /nix/store/vslsa0l17xjcrdgm2knwj0z5hlvf73m7-perl-5.34.0/bin/perl > > -MExtUtils::Command::MM -MTest::Harness -e undef *Test::Harness::Switches; > > test_harness(0, 'blib/lib', 'blib/arch') t/admin.t t/altid.t t/altid_v2.t > > t/cgi.t t/cmd_ipc.t t/content_hash.t t/dir_idle.t t/edit.t > > t/eml_content_disposition.t t/eml_content_type.t t/epoll.t > > t/extindex-psgi.t t/extsearch.t t/fake_inotify.t t/feed.t t/gcf2.t > > t/gcf2_client.t t/httpd.t t/idx_stack.t t/imap.t t/imap_searchqp.t > > t/imapd-tls.t t/imapd.t t/inbox_idle.t t/index-git-times.t > > t/indexlevels-mirror.t t/ipc.t t/kqnotify.t t/lei-auto-watch.t > > t/lei-convert.t t/lei-daemon.t t/lei-export-kw.t t/lei-externals.t > > t/lei-import-http.t t/lei-import-imap.t t/lei-import-maildir.t > > t/lei-import-nntp.t t/lei-import.t t/lei-index.t t/lei-inspect.t > > t/lei-lcat.t t/lei-p2q.t t/lei-q-kw.t t/lei-q-remote-import.t > > t/lei-q-save.t t/lei-q-thread.t t/lei-refresh-mail-sync.t t/lei-sigpipe.t > > t/lei-tag.t t/lei-up.t t/lei-watch.t t/lei.t t/lei_dedupe.t > > t/lei_external.t t/lei_lcat.t t/lei_mail_sync.t t/lei_overview.t > > t/lei_saved_search.t t/lei_store.t t/lei_to_mail.t t/lei_xsearch.t > > t/mbox_lock.t t/mbox_reader.t t/mdir_reader.t t/mime.t t/miscsearch.t > > t/net_reader-imap.t t/nntpd-tls.t t/nntpd.t t/nodatacow.t t/on_destroy.t > > t/plack.t t/psgi_attach.t t/psgi_bad_mids.t t/psgi_mount.t > > t/psgi_multipart_not.t t/psgi_scan_all.t t/psgi_search.t t/psgi_v2.t > > t/rename_noreplace.t t/reply.t t/search-thr-index.t t/shared_kv.t > > t/solver_git.t t/thread-index-gap.t t/uri_imap.t t/uri_nntps.t > > t/v2dupindex.t t/www_altid.t t/xcpdb-reshard.t t/www_static.t > > t/watch_multiple_headers.t t/watch_maildir_v2.t t/watch_maildir.t > > t/watch_imap.t t/watch_filter_rubylang.t t/view.t t/v2reindex.t > > t/v2mirror.t t/v2mda.t t/v2index-late-dupe.t t/v2-add-remove-add.t > > t/v1reindex.t t/v1-add-remove-add.t t/time.t t/thread-cycle.t > > t/spamcheck_spamc.t t/sigfd.t t/replace.t t/reindex-time-range.t t/qspawn.t > > t/purge.t t/psgi_text.t t/precheck.t t/over.t t/nulsubject.t t/nntpd-v2.t > > t/nntp.t t/multi-mid.t t/msgtime.t t/msgmap.t t/msg_iter.t t/mid.t > > t/mda_filter_rubylang.t t/mda.t t/linkify.t t/init.t > > t/indexlevels-mirror-v1.t t/inbox.t t/import.t t/imap_tracker.t t/hval.t > > t/httpd-unix.t t/httpd-https.t t/httpd-corner.t t/gzip_filter.t t/git.t > > t/filter_vger.t t/filter_subjecttag.t t/filter_rubylang.t t/filter_mirror.t > > t/filter_base.t t/emergency.t t/ds-poll.t t/ds-leak.t t/ds-kqxs.t > > t/config_limiter.t t/config.t t/address.t > > nixbld1 3145719 0.0 0.4 44576 35640 ? S 01:09 0:01 > > | \_ t/lei-sigpipe.t > > nixbld1 3145743 0.0 0.1 14388 10388 ? S 01:09 0:00 > > | \_ > > /nix/store/vslsa0l17xjcrdgm2knwj0z5hlvf73m7-perl-5.34.0/bin/perl -w > > -I/nix/store/vslsa0l17xjcrdgm2knwj0z5hlvf73m7-perl-5.34.0/lib/perl5/site_perl > > > > -I/nix/store/1hdx7bxjwqrfnalalkgbwi32l45h8z7b-perl5.34.0-Mail-IMAPClient-3.42/lib/perl5/site_perl > > -I/nix/st blib/script/lei q -q -t z:1.. > > nixbld1 3145724 0.0 0.5 50504 42160 ? S 01:09 0:00 > > \_ lei-daemon > > /build/pi-lei-sigpipe-7522-WoHO/lei-daemon/xdg_run/lei/5.seq.sock > > nixbld1 3145730 0.0 0.4 50092 39736 ? S 01:09 0:00 > > \_ lei/store /build/pi-lei-sigpipe-7522-WoHO/lei-daemon/.local/share > > t/lei-sigpipe.t is on: > > 01:30:29.508334 clock_nanosleep(CLOCK_REALTIME, 0, {tv_sec=1, tv_nsec=0}, > > 0x7fffffff5090) = 0 <1.000360> > > 01:30:30.509837 clock_nanosleep(CLOCK_REALTIME, 0, {tv_sec=1, tv_nsec=0}, > > 0x7fffffff5090) = 0 <1.000186> > > 01:30:31.510259 clock_nanosleep(CLOCK_REALTIME, 0, {tv_sec=1, tv_nsec=0}, > > 0x7fffffff5090) = 0 <1.000175> > > [...]
Huh? but it's stuck in sysread() as noted below... I'm not sure where clock_nanosleep(2) calls are coming from with a 1s interval. I doubt I'd ever loop clock_nanosleep(CLOCK_REALTIME no matter how messed up my brain gets :P I do use nanosleep(2) with a 100ms interval on sendmsg ENOBUFS|ENOMEM|ETOOMANYREFS in Spawn.pm and that's a different syscall. From what I can tell, Mail::IMAPClient doesn't clock_nanosleep, nor does Perl itself... Sleeping on CLOCK_REALTIME seems wrong outside of a cron-like scheduler... > lei-daemon store is on: > > 01:31:03.834708 epoll_wait(5, OK, that's normal. > Looks like it is waiting on sysread() in > https://public-inbox.org/public-inbox.git/tree/t/lei-sigpipe.t#n35 OK, that makes more sense... > This test does succeed outside Nix's sandbox: > $ (cd public-inbox-1.7.0; export PERL_INLINE_DIRECTORY=$PWD/inline-c; rm -rf > $PERL_INLINE_DIRECTORY; mkdir $PERL_INLINE_DIRECTORY; prove -bvw > t/lei-sigpipe.t ) OK, <snip> > More surprisingly, it even succeeds when run manually > inside the hanging Nix sandbox: OK, <snip> > Even more strange, Dominique was able to reproduce > the hang this morning, but no longer tonight.. It's been a while, and I can't reproduce it. Maybe this patch will help with diagnosis: ------------8<--------- Subject: [PATCH] t/lei-sigpipe: attempt to improve diagnostics for stuck test This may help diagnose a difficult-to-reproduce test failure on NixOS. Link: https://public-inbox/meta/[email protected]/ --- t/lei-sigpipe.t | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/t/lei-sigpipe.t b/t/lei-sigpipe.t index d9738b07..6b2772a6 100644 --- a/t/lei-sigpipe.t +++ b/t/lei-sigpipe.t @@ -27,11 +27,17 @@ EOM } lei_ok(qw(import), $f) if $imported++ == 0; - open my $errfh, '+>', "$ENV{HOME}/stderr.log" or xbail $!; + open my $errfh, '+>>', "$ENV{HOME}/stderr.log" or xbail $!; my $opt = { run_mode => 0, 2 => $errfh, 1 => $w }; my $cmd = [qw(lei q -q -t), @$out, 'z:1..']; my $tp = start_script($cmd, undef, $opt); close $w; + vec(my $rvec = '', fileno($r), 1) = 1; + if (!select($rvec, undef, undef, 30)) { + seek($errfh, 0, 0) or xbail $!; + my $s = do { local $/; <$errfh> }; + xbail "lei q had no output after 30s, stderr=$s"; + } is(sysread($r, my $buf, 1), 1, 'read one byte'); close $r; # trigger SIGPIPE $tp->join; -- unsubscribe: one-click, see List-Unsubscribe header archive: https://public-inbox.org/meta/
