qemu @9.0.0 aborts on Sierra

[Randrianasulu (Andrew Randrianasulu)]

 qemu-system-i386                                        Assertion failed: (mutex->initialized), function qemu_mutex_lock_impl, file ../qemu-9.0.0/util/qemu-thread-posix.c, line 92.                                                                          Abort trap: 6

====

from terminal and ssh session alike

[ryandesign (Ryan Carsten Schmidt)]

Could you attach the crash log which should have been generated by macOS in ~/Library/Logs/DiagnosticReports?

[Randrianasulu (Andrew Randrianasulu)]

crash report

[herbygillot (Herby Gillot)]

qemu just updated to 9.0.1 - can you confirm that this is still happening?

[Randrianasulu (Andrew Randrianasulu)]

I can't see it in my port tree?

sudo port search qemu
Password:
docker-machine-driver-qemu @20220617 (devel)
    Docker machine driver for pure qemu/kvm - no libvirt

qemu @9.0.0 (emulators)
    Emulator for various architectures

compiled my own 9.0.1 with those switches

./configure --target-list=x86_64-softmmu --objcc="/opt/local/bin/clang-mp-16" --disable-cocoa --disable-virtfs

and it sadly also aborts in same place

[herbygillot (Herby Gillot)]

Probably need to selfupdate: sudo port selfupdate, then check for 9.0.1

[Randrianasulu (Andrew Randrianasulu)]

qemu-system-x86_64 --version
Assertion failed: (mutex->initialized), function qemu_mutex_lock_impl, file ../qemu-9.0.1/util/qemu-thread-posix.c, line 92.
Abort trap: 6

:(

[ryandesign (Ryan Carsten Schmidt)]

Then you'll probably want to report the bug to the developers of qemu so they can fix it. Share the bug report URL with us here.

[Randrianasulu (Andrew Randrianasulu)]

considering

commit 2d27c91e2b72ac7a65504ac207c89262d92464eb
Author: Peter Maydell <peter.maydell@linaro.org>
Date:   Thu May 2 15:29:04 2024 +0100

    ui/cocoa.m: Drop old macOS-10.12-and-earlier compat ifdefs

    We only support the most recent two versions of macOS (currently                                   macOS 13 Ventura and macOS 14 Sonoma), and our ui/cocoa.m code
    already assumes at least macOS 12 Monterey or better, because it uses
    NSScreen safeAreaInsets, which is 12.0-or-newer.
                                                                                                       Remove the ifdefs that were providing backwards compatibility for
    building on 10.12 and earlier versions.

I doubt they care about older OSes

[Randrianasulu (Andrew Randrianasulu)]

interesting enough 8.2.5 starts if compiled like this

./configure --target-list=x86_64-softmmu --objcc="/opt/local/bin/clang-mp-16" --disable-cocoa --disable-virtfs --disable-coreaudio --disable-plugins

[Randrianasulu (Andrew Randrianasulu)]

and git bisect lead to this commit:

03e471c41d8b1b6eb16c9714f387449f52fe5c1d is the first bad commit
commit 03e471c41d8b1b6eb16c9714f387449f52fe5c1d
Author: Fiona Ebner <f.ebner@proxmox.com>
Date:   Mon Dec 18 11:13:40 2023 +0100

    qemu_init: increase NOFILE soft limit on POSIX

[Randrianasulu (Andrew Randrianasulu)]

setting

ulimit -n 1024

for raising up from default 256 also fixes port-installed 9.0.1 startup from ssh console

[johnrosshunt]

I haven't tested an image yet, but disabling cocoa, building with clang-16 and setting ulimit -n 1024 does the trick on Catalina.

$ sudo port install qemu -cocoa +curl +curses +ssh +target_alpha +target_ppc +target_xtensa +vde configure.compiler=macports-clang-16

$ sw_vers
ProductName:	Mac OS X
ProductVersion:	10.15.7
BuildVersion:	19H2026

$ qemu-system-arm --version
Assertion failed: (mutex->initialized), function qemu_mutex_lock_impl, file ../qemu-9.0.1/util/qemu-thread-posix.c, line 92.
Abort trap: 6

$ ulimit -n 1024

$ qemu-system-arm --version
QEMU emulator version 9.0.1
Copyright (c) 2003-2024 Fabrice Bellard and the QEMU Project developers