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Date: Thu, 29 Oct 2020 00:06:10 +0100
From: Milan P. Stanić <mps@...anta.net>
To: musl@...ts.openwall.com
Subject: Re: [PATCH v2] MT fork
On Wed, 2020-10-28 at 14:56, Rich Felker wrote:
> On Tue, Oct 27, 2020 at 05:17:35PM -0400, Rich Felker wrote:
> > > >
> > > > Will follow up with draft patch for testing.
> > >
> > > Patch attached. It should suffice for testing and review of whether
> > > there are any locks/state I overlooked. It could possibly be made less
> > > ugly too.
> > > [...]
> >
> > Another bug:
> > [...]
>
> And an updated version of the patch with both previously reported bugs
> fixed, for the purpose of users/distros wanting to test without
> manually fixing up the patch. Attached.
Applied this patch on top of current musl master, build it on Alpine and
installed.
Tested by building ruby lang. Works fine.
Also tested building zig lang, works fine.
But crystal lang builds fine, but running it hangs. strace shows:
-------------
[pid 5573] futex(0x7efc50fba9e4, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
[pid 5568] futex(0x7efc5118f984, FUTEX_REQUEUE_PRIVATE, 0, 1, 0x7efc514b67a4) = 1
[pid 5568] futex(0x7efc514b67a4, FUTEX_WAKE_PRIVATE, 1) = 1
[pid 5571] <... futex resumed>) = 0
[pid 5568] futex(0x7efc511099e4, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
[pid 5571] futex(0x7efc510409e4, FUTEX_WAIT_PRIVATE, 2, NULL
-------------
where it hangs.
--
Regards
[...]
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