From: "Érico Nogueira" <ericonr@disroot.org>
To: <musl@lists.openwall.com>, <musl@lists.openwall.com>
Subject: Re: [musl] Status report and MT fork
Date: Mon, 26 Oct 2020 15:44:51 -0300 [thread overview]
Message-ID: <C6N1MWEJ5TZY.3IC8PBOZH8K6U@mussels> (raw)
In-Reply-To: <20201026032943.GK534@brightrain.aerifal.cx>
On Sun Oct 25, 2020 at 8:29 PM -03, Rich Felker wrote:
> > + for (i=0; i<qpos; i++) if (queue[i]->ctor_visitor->tid < 0) {
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> Invalid access as-is, should be queue[i]->ctor_visitor && ...
>
> > + error("State of %s is inconsistent due to multithreaded fork\n",
> > + queue[i]->name);
> > + free(queue);
> > + if (runtime) longjmp(*rtld_fail, 1);
> > + }
> >
> > return queue;
> > }
>
> Rich
As a warning, don't install the resulting libc.so on your system without
the above fix! It segfaulted even with simple applications here.
Re. the patches, I am now able to import an image into gscan2pdf (a Perl
GTK application) - though it required building Perl with a bigger thread
stack size. With musl 1.2.1 it simply hung on a futex syscall.
Cheers,
Érico
next prev parent reply other threads:[~2020-10-26 18:52 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-26 0:50 Rich Felker
2020-10-26 0:59 ` Rich Felker
2020-10-26 3:29 ` Rich Felker
2020-10-26 18:44 ` Érico Nogueira [this message]
2020-10-26 19:52 ` Rich Felker
2020-10-26 20:11 ` Érico Nogueira
2020-10-27 21:17 ` Rich Felker
2020-10-28 18:56 ` [musl] [PATCH v2] " Rich Felker
2020-10-28 23:06 ` Milan P. Stanić
2020-10-29 16:13 ` Szabolcs Nagy
2020-10-29 16:20 ` Rich Felker
2020-10-29 20:55 ` Milan P. Stanić
2020-10-29 22:21 ` Szabolcs Nagy
2020-10-29 23:00 ` Milan P. Stanić
2020-10-29 23:27 ` Rich Felker
2020-10-30 0:13 ` Rich Felker
2020-10-30 7:47 ` Milan P. Stanić
2020-10-30 18:52 ` Milan P. Stanić
2020-10-30 18:57 ` Rich Felker
2020-10-30 21:31 ` Ariadne Conill
2020-10-31 3:31 ` Rich Felker
2020-11-06 3:36 ` Rich Felker
2020-11-08 16:12 ` Szabolcs Nagy
2020-11-09 17:07 ` Rich Felker
2020-11-09 18:01 ` Érico Nogueira
2020-11-09 18:44 ` Rich Felker
2020-11-09 18:54 ` Érico Nogueira
2020-11-09 21:59 ` Szabolcs Nagy
2020-11-09 22:23 ` Rich Felker
2020-11-11 0:52 ` Rich Felker
2020-11-11 6:35 ` Alexey Izbyshev
2020-11-11 11:25 ` Szabolcs Nagy
2020-11-11 14:56 ` Rich Felker
2020-11-11 16:35 ` Rich Felker
2020-10-31 7:22 ` Timo Teras
2020-10-31 13:29 ` Szabolcs Nagy
2020-10-31 13:35 ` Timo Teras
2020-10-31 14:41 ` Ariadne Conill
2020-10-31 14:49 ` Rich Felker
2020-10-31 14:48 ` Rich Felker
2020-10-31 14:47 ` Rich Felker
2020-10-29 23:32 ` Szabolcs Nagy
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