From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#29335: 'guix publish' workers occasionally crash
Date: Fri, 17 Nov 2017 23:10:39 +0100
Message-ID: <87vai8zhcw.fsf@gnu.org>
References: <878tf55i6u.fsf@gnu.org> <87vai93xi5.fsf@gnu.org>
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ludo@gnu.org (Ludovic Court=C3=A8s) skribis:

> Thread 14 is in scm_readdir, so it holds the terrible
> =E2=80=98scm_i_misc_mutex=E2=80=99, but calling SCM_SYSERROR there causes=
 it to try and
> lock it again, leading to a deadlock:
>
> #3  0x00007f7ee9545969 in scm_dynwind_pthread_mutex_lock (mutex=3D0x7f7ee=
97bbfa0 <scm_i_misc_mutex>) at threads.c:1613
> #4  0x00007f7ee94d8dbb in scm_strerror (err=3Derr@entry=3D9) at error.c:1=
28
> #5  0x00007f7ee94d8e73 in scm_syserror (subr=3Dsubr@entry=3D0x7f7ee956afa=
0 <s_scm_readdir> "readdir") at error.c:169
> #6  0x00007f7ee94e29b4 in scm_readdir (port=3D#<unmatched-tag 10a77>) at =
filesys.c:1754

This particular issue is now fixed in Guile:

  https://git.savannah.gnu.org/cgit/guile.git/commit/?h=3Dstable-2.2&id=3D1=
87655cedb42cc4b01088179649b02295cd35260

Ludo=E2=80=99.