#1149859 qemu-system-x86: Windows Vista 32bit clients halts during boot

Package:
qemu-system-x86
Source:
qemu-system-x86
Description:
QEMU full system emulation binaries (x86)
Submitter:
kjonca
Date:
2026-10-03 21:03:02 UTC
Severity:
normal
#1149859#5
Date:
2026-10-03 18:53:34 UTC
From:
To:
Dear Maintainer,


Recently I found that my 32 Windows Vista client halts during boot.

Moreover in logs I found (I am not sure if all of these are apropriate
here)


[63469.996020] qemu-system-x86[28061]: segfault at 560f63c29600 ip 0000560f63c29600 sp 00007ffc2509a078 error 15 likely on CPU 4 (core 8, socket 0)
[63469.996037] Code: 00 00 c8 1a ff 78 87 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 81 00 00 00 00 00 00 00 d0 52 1a 65 0f 56
[63469.996503] audit: type=1400 audit(1791052506.218:510): apparmor="DENIED" operation="mknod" class="file" profile="libvirt-31860a79-3e72-4fac-bda4-b199c1cbdb98" name="/core.28061" pid=28061 comm="qemu-system-x86" requested_mask="c" denied_mask="c" fsuid=64055 ouid=64055
[63470.261264] audit: type=1400 audit(1791052506.482:511): apparmor="STATUS" operation="profile_remove" profile="unconfined" name="libvirt-31860a79-3e72-4fac-bda4-b199c1cbdb98" pid=28172 comm="apparmor_parser"
[63498.412150] audit: type=1400 audit(1791052534.634:512): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libvirt-31860a79-3e72-4fac-bda4-b199c1cbdb98" pid=28183 comm="apparmor_parser"
[63498.412357] audit: type=1400 audit(1791052534.634:513): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libvirt-31860a79-3e72-4fac-bda4-b199c1cbdb98//passt" pid=28183 comm="apparmor_parser"
[63498.482560] audit: type=1400 audit(1791052534.706:514): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="libvirt-31860a79-3e72-4fac-bda4-b199c1cbdb98" pid=28186 comm="apparmor_parser"
[63498.495081] audit: type=1400 audit(1791052534.718:515): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="libvirt-31860a79-3e72-4fac-bda4-b199c1cbdb98//passt" pid=28186 comm="apparmor_parser"
[63498.558524] audit: type=1400 audit(1791052534.782:516): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="libvirt-31860a79-3e72-4fac-bda4-b199c1cbdb98" pid=28190 comm="apparmor_parser"
[63498.583022] audit: type=1400 audit(1791052534.806:517): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="libvirt-31860a79-3e72-4fac-bda4-b199c1cbdb98//passt" pid=28190 comm="apparmor_parser"
[63498.653836] audit: type=1400 audit(1791052534.874:518): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="libvirt-31860a79-3e72-4fac-bda4-b199c1cbdb98" pid=28194 comm="apparmor_parser"
[63498.653982] audit: type=1400 audit(1791052534.874:519): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="libvirt-31860a79-3e72-4fac-bda4-b199c1cbdb98//passt" pid=28194 comm="apparmor_parser"

I am not sure if this is latest version regression or not, as I did not
launch these clients for a while.

I can confirm that Vista  64bit / windows 7 32 and 64 bit /windows xp
works. Only vista 32 bit has problem.

What is more interesting - safe mode on these clients works.
KJ