Re: RPM building on s390x sometimes is very slow on F-30+

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Hello All,

I've just got hit by this again - lockups on s390. Looks like I have
100% reproducer (just try to build Erlang and it will stuck
eventually).

* https://koji.fedoraproject.org/koji/taskinfo?taskID=37327589

Where should I open a ticket? Bugzilla.redhat.com or somewhere else?

чт, 25 июл. 2019 г. в 17:44, Kevin Fenzi <kevin@xxxxxxxxx>:
>
> On 7/25/19 3:04 AM, Peter Lemenkov wrote:
> > Hello All!
> > It started to get stuck again. Right now I'm experiencing this issue
> > with RabbitMQ for F-30 and F-31:
> >
> > * https://koji.fedoraproject.org/koji/taskinfo?taskID=36457376
> > * https://koji.fedoraproject.org/koji/taskinfo?taskID=36457345
>
> So, yeah.
>
> >   |   |-kojid,31279 /usr/sbin/kojid --fg --force-lock --verbose
> >   |   |   `-mock,31584 -tt /usr/libexec/mock/mock -r koji/f30-build-16961487-1222718 --old-chroot --no-clean --target s390x ...
> >   |   |       `-rpmbuild,32205 -bb --target s390x --nodeps /builddir/build/SPECS/rabbitmq-server.spec
> >   |   |           `-sh,32237 -e /var/tmp/rpm-tmp.GwzEQt
> >   |   |               `-make,32238 -j4 VERSION=3.7.16 V=1
> >   |   |                   `-sh,32318 -c...
> >   |   |                       `-make,2112 -C /builddir/build/BUILD/rabbitmq-server-3.7.16/deps/amqp10_client IS_DEP=1
> >   |   |                           `-make,2237 --no-print-directory app-build
> >   |   |                               `-beam.smp,2302 -sbtu -A0 -- -root /usr/lib64/erlang -progname erl -- -home /builddir -- ...
> >   |   |                                   |-{beam.smp},2303
> >   |   |                                   |-{beam.smp},2304
> >   |   |                                   |-erl_child_setup,2305 1024
> >   |   |                                   |-{beam.smp},2306
> >   |   |                                   |-{beam.smp},2307
> >   |   |                                   |-{beam.smp},2308
> >   |   |                                   |-{beam.smp},2309
> >   |   |                                   |-{beam.smp},2310
> >   |   |                                   |-{beam.smp},2311
> >   |   |                                   |-{beam.smp},2312
> >   |   |                                   |-{beam.smp},2313
> >   |   |                                   |-{beam.smp},2314
> >   |   |                                   |-{beam.smp},2315
> >   |   |                                   |-{beam.smp},2316
> >   |   |                                   |-{beam.smp},2317
> >   |   |                                   |-{beam.smp},2318
> >   |   |                                   |-{beam.smp},2319
> >   |   |                                   |-{beam.smp},2320
> >   |   |                                   |-{beam.smp},2321
> >   |   |                                   |-{beam.smp},2322
> >   |   |                                   |-{beam.smp},2323
> >   |   |                                   |-{beam.smp},2324
> >   |   |                                   `-{beam.smp},2325
>
> When I strace the 2302 process:
>
> strace: Process 2302 attached with 23 threads
> [pid  2324] ppoll([{fd=12, events=POLLIN|POLLRDNORM}], 1, NULL, NULL, 8
> <unfinished ...>
> [pid  2320] futex(0x3ff58800550, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2321] futex(0x3ff58800590, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2319] futex(0x3ff58800510, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2318] futex(0x3ff588004d0, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2317] futex(0x3ff58800490, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2316] futex(0x3ff58800450, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2315] futex(0x3ff58800410, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2313] futex(0x3ff58800390, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2312] futex(0x3ff58800350, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2308] restart_syscall(<... resuming interrupted
> syscall_0xfffffffffffffdfc ...> <unfinish
> ed ...>
> [pid  2303] read(14,  <unfinished ...>
> [pid  2302] select(0, NULL, NULL, NULL, NULL <unfinished ...>
> [pid  2309] restart_syscall(<... resuming interrupted select ...>
> <unfinished ...>
> [pid  2323] futex(0x3ff58800610, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2322] futex(0x3ff588005d0, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2314] futex(0x3ff588003d0, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2311] futex(0x3ff58800310, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2310] futex(0x3ff588002d0, FUTEX_WAIT_PRIVATE, 4294967295, NULL
> <unfinished ...>
> [pid  2306] restart_syscall(<... resuming interrupted
> syscall_0xfffffffffffffdfc ...> <unfinish
> ed ...>
> [pid  2304] futex(0x2aa3d9af520, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished
> ...>
> [pid  2307] timerfd_settime(11, 0, {it_interval={tv_sec=0, tv_nsec=0},
> it_value={tv_sec=0, tv_n
> sec=0}}, NULL) = 0
> [pid  2325] epoll_wait(4,  <unfinished ...>
> [pid  2307] futex(0x3ff588001d0, FUTEX_WAKE_PRIVATE, 1) = 1
> [pid  2306] <... restart_syscall resumed>) = 0
> [pid  2307] fcntl(2, F_GETFL <unfinished ...>
> [pid  2306] timerfd_settime(11, 0, {it_interval={tv_sec=0, tv_nsec=0},
> it_value={tv_sec=23, tv_
> nsec=941692107}},  <unfinished ...>
>
> and then... it starts going again. So something was stuck and strace
> unstuck it?
>
> So, it looks like some odd signal thing with s390x?
>
> Not sure, but perhaps we should file a bug and try and track it more?
>
> kevin
>
>
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-- 
With best regards, Peter Lemenkov.
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