Public bug reported:
Wine's winetest.exe is used to test various components of Wine
(WineHQ.org), and can be run on a Windows VM. When it gets to the
ntdll:exception test, Qemu exits silently.
[Aug16 16:36] kvm_intel: kvm [23609]: vcpu2, guest rIP: 0xfffff8058f0f9542
Unhandled WRMSR(0x1d9) = 0x1
[ +0.000128] qemu-system-x86[23609]: segfault at 594ae11c0760 ip
0000594ae11c0760 sp 00007fffe472fd08 error 15 likely on CPU 0 (core 0, socket 0)
[ +0.000014] Code: 00 00 20 3b 20 5a b0 7f 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 cb ce 55 01 00 00 00 00 97 00 00 00 00 00 00 00 <20> 00 0a 6c
69 62 73 63 41 00 00 00 00 00 00 00 30 52 60 e1 4a>
Qemu should handle this gracefully, but then so should KVM.
I tested Qemu 11.1.0 and the exact same happens. Will report to Qemu.
Kernel testing is difficult as I rely on old Nvidia drivers, and they're
broken in newer kernels with no chance of them being fixed.
Attaching the specific binary from today's daily build.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.11.0-29-generic 6.11.0-29.29~24.04.1
ProcVersionSignature: Ubuntu 6.11.0-29.29~24.04.1-generic 6.11.11
Uname: Linux 6.11.0-29-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.28.3-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ken 3933 F.... wireplumber
/dev/snd/controlC1: ken 3933 F.... wireplumber
/dev/snd/seq: ken 3929 F.... pipewire
CasperMD5CheckResult: unknown
CurrentDesktop: MATE
Date: Sun Aug 16 16:57:54 2026
MachineType: LENOVO 0606AD5
ProcFB: 0 simpledrmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.11.0-29-generic
root=UUID=83ed7b7f-ef51-49d7-a6be-a8efee1cdd32 ro rootflags=subvol=@
vt.handoff=7 zswap.enabled=1 zswap.shrinker_enabled=1 zswap.max_pool_percent=20
zswap.zpool=zsmalloc zswap.compressor=lz4
resume=UUID=afb35822-ba94-455b-839e-a91d503b9608 intel_iommu=on iommu=pt
video=1920x1080@60
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-6.11.0-29-generic N/A
linux-backports-modules-6.11.0-29-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.29
RfKill:
SourcePackage: linux-hwe-6.11
UpgradeStatus: Upgraded to noble on 2026-05-15 (93 days ago)
dmi.bios.date: 12/15/2016
dmi.bios.release: 0.60
dmi.bios.vendor: LENOVO
dmi.bios.version: A0KT60AUS
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: LENOVO
dmi.board.vendor: LENOVO
dmi.board.version: NONE
dmi.chassis.type: 7
dmi.chassis.vendor: LENOVO
dmi.chassis.version: NONE
dmi.modalias:
dmi:bvnLENOVO:bvrA0KT60AUS:bd12/15/2016:br0.60:svnLENOVO:pn0606AD5:pvrThinkStationS30:rvnLENOVO:rnLENOVO:rvrNONE:cvnLENOVO:ct7:cvrNONE:skuLENOVO_BI_A0:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: 0606AD5
dmi.product.sku: LENOVO_BI_A0
dmi.product.version: ThinkStation S30
dmi.sys.vendor: LENOVO
** Affects: linux-hwe-6.11 (Ubuntu)
Importance: Undecided
Status: New
** Affects: qemu (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
** Attachment added: "ntdll_test.exe"
https://bugs.launchpad.net/bugs/2163604/+attachment/5992633/+files/ntdll_test.exe
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https://bugs.launchpad.net/bugs/2163604
Title:
Wine's ntdll:exception test causes GPF in KVM
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