Public bug reported:
Fully updated xubuntu 16.04 running kernel 4.4.0-122 breaks qemu-
system-x86: black screen displays and qemu-system-x86 runs at 100% cpu
indefinitely. Boot the same system with kernel 4.4.0-119 and qemu-
system-x86 works fine running a Windows 10 VM.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: qemu-system-x86 1:2.5+dfsg-5ubuntu10.25
ProcVersionSignature: Ubuntu 4.4.0-122.146-generic 4.4.117
Uname: Linux 4.4.0-122-generic i686
ApportVersion: 2.20.1-0ubuntu2.16
Architecture: i386
CurrentDesktop: XFCE
Date: Sun Apr 29 15:58:25 2018
InstallationDate: Installed on 2014-04-29 (1460 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140416.2)
KvmCmdLine:
COMMAND STAT EUID RUID PID PPID %CPU COMMAND
kvm-irqfd-clean S< 0 0 394 2 0.0 [kvm-irqfd-clean]
MachineType: Dell Inc. Inspiron 518
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-122-generic
root=UUID=7cffb293-c044-4b2c-8343-dc50fd16db97 ro --verbose nosplash
nmi_watchdog=0
SourcePackage: qemu
UpgradeStatus: Upgraded to xenial on 2016-08-10 (627 days ago)
dmi.bios.date: 03/30/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.0.8
dmi.board.name: 0K068D
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: OEM
dmi.modalias:
dmi:bvnDellInc.:bvr1.0.8:bd03/30/2009:svnDellInc.:pnInspiron518:pvr00:rvnDellInc.:rn0K068D:rvrA00:cvnDellInc.:ct3:cvrOEM:
dmi.product.name: Inspiron 518
dmi.product.version: 00
dmi.sys.vendor: Dell Inc.
** Affects: qemu (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 xenial
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https://bugs.launchpad.net/bugs/1767857
Title:
Kernel 4.4.0-122 Breaks qemu-system-x86
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