Your message dated Fri, 06 Feb 2026 21:18:42 +0000
with message-id <[email protected]>
and subject line Bug#1125780: fixed in libgc 1:8.2.12-1
has caused the Debian Bug report #1125780,
regarding inkscape crashes when using glycin-based gdkpixbuf loaders
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
1125780: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1125780
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: libgc1
Version: 1:8.2.10-1
Severity: normal
X-Debbugs-Cc: [email protected]

When libgdk-pixbuf-2.0-0 from experimental (2.44.4+dfsg-3) - which uses
glycin-based loaders (libglycin-2-0, glycin-loaders) - is installed, inkscape
immediately crashes on startup:


Jan 17 14:25:06 nuc8 kernel: gly-hdl-loader[5018]: segfault at 8 ip
00007fdb36a7de24 sp 00007fdb07df
ca10 error 6 in libgc.so.1.5.5[10e24,7fdb36a74000+1e000] likely on CPU 6 (core
2, socket 0)
Jan 17 14:25:06 nuc8 kernel: Code: 39 ff 74 d2 e8 7d fd ff ff 48 85 ed 75 cd 4b
c7 44 e5 00 00 00 00
 00 83 c3 01 81 fb 00 01 00 00 75 a4 e8 ef 68 ff ff 48 89 c2 <49> 89 46 08 48
c1 ea 08 48 31 c2 48 8
9 d0 48 c1 e8 10 48 31 d0 0f

$ coredumpctl debug 5018

           PID: 5018 (gly-hdl-loader)
           UID: 1000 (roderich)
           GID: 1000 (roderich)
        Signal: 11 (SEGV)
     Timestamp: Sat 2026-01-17 14:25:06 CET (1h 24min ago)
  Command Line: inkscape
    Executable: /usr/bin/inkscape
...
                Stack trace of thread 5018:
                #0  0x00007fdb36a7de24 n/a (libgc.so.1 + 0x10e24)
                #1  0x00007fdb368fba93 __run_postfork_handlers (libc.so.6 +
0xfba93)
                #2  0x00007fdb368e5b2e __libc_fork (libc.so.6 + 0xe5b2e)
                #3  0x00007fdb334c447a n/a (libglycin-2.so.0 + 0x2c447a)
                #4  0x00007fdb33270c8a n/a (libglycin-2.so.0 + 0x70c8a)
                #5  0x00007fdb3327887b n/a (libglycin-2.so.0 + 0x7887b)
                #6  0x00007fdb334ac3f1 n/a (libglycin-2.so.0 + 0x2ac3f1)
                #7  0x00007fdb36895489 start_thread (libc.so.6 + 0x95489)
                #8  0x00007fdb36913d38 __clone3 (libc.so.6 + 0x113d38)
...
(gdb) where
#0  0x00007fdb36a7de24 in GC_remove_all_threads_but_me () at
../extra/../pthread_support.c:881
#1  fork_child_proc () at ../extra/../pthread_support.c:1307
#2  0x00007fdb368fba93 in __run_postfork_handlers
    (who=who@entry=atfork_run_child, do_locking=do_locking@entry=true,
lastrun=lastrun@entry=3)
    at ./posix/register-atfork.c:187
#3  0x00007fdb368e5b2e in __libc_fork () at ./posix/fork.c:113
#4  0x00007fdb334c447a in std::sys::process::unix::common::Command::do_fork
    (self=<error reading variable: Cannot access memory at address 0x0>)
    at library/std/src/sys/process/unix/unix.rs:186
#5  std::sys::process::unix::common::Command::spawn
    (self=0x7fdb07dfd1c0, default=..., needs_stdin=<optimized out>)
    at library/std/src/sys/process/unix/unix.rs:92
#6  0x00007fdb33270c8a in std::process::Command::spawn (self=0x7fdb07dfd1c0)
    at /usr/src/rustc-1.90.0/library/std/src/process.rs:1045
#7
glycin::dbus::{impl#3}::new::{async_fn#0}::{closure#1}<glycin::dbus::LoaderProxy>
()
    at /usr/share/cargo/registry/glycin-3.0.7/src/dbus.rs:121



This is upstream bug https://github.com/bdwgc/bdwgc/issues/802:
gc-8.2.10 crashes inkscape/libglycin


Updating libgc to 9e75f7d from branch release-8_2 fixes this for me.


-- System Information:
Debian Release: forky/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 6.18.3+deb14-amd64 (SMP w/8 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages libgc1 depends on:
ii  libc6       2.42-7
ii  libstdc++6  15.2.0-12

libgc1 recommends no packages.

libgc1 suggests no packages.

-- no debconf information

--- End Message ---
--- Begin Message ---
Source: libgc
Source-Version: 1:8.2.12-1
Done: Ian Wienand <[email protected]>

We believe that the bug you reported is fixed in the latest version of
libgc, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Ian Wienand <[email protected]> (supplier of updated libgc package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])


-----BEGIN PGP SIGNED MESSAGE-----
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Format: 1.8
Date: Sat, 07 Feb 2026 07:59:42 +1100
Source: libgc
Architecture: source
Version: 1:8.2.12-1
Distribution: unstable
Urgency: medium
Maintainer: Christoph Egger <[email protected]>
Changed-By: Ian Wienand <[email protected]>
Closes: 1125780
Changes:
 libgc (1:8.2.12-1) unstable; urgency=medium
 .
   * New upstream version 8.2.12 (Closes: #1125780)
Checksums-Sha1:
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 c4050884fa80e871b35c7ff83c663ceb33ead8c6 11952 libgc_8.2.12-1.debian.tar.xz
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Files:
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 c9d1c287ef9fd9fd228dbcd293f1c5ac 11952 libs optional 
libgc_8.2.12-1.debian.tar.xz
 17c4349d30832e68bc0a4680e143ab75 6303 libs optional 
libgc_8.2.12-1_source.buildinfo

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