Public bug reported:
I was using a system on an USB disk and I noticed that changes were
being written to the disk while setting the -snapshot option and never
issuing the keyboard shortcut to write the changes.
The command line used was:
sudo qemu-system-x86_64 -m 2G -cpu host -accel kvm -device qxl-
vga,xres=1024,yres=600 -device qemu-xhci -device usb-
host,vendorid=0x054c,id=sony -net none -boot menu=on -snapshot
Changes done on the USB disk were being written to it, which was
unexpected, considering the -snapshot option was set.
Is this related to using -device usb-host instead of -hda? If yes, is
there a way to enable -snapshot behavior while using -device usb-host?
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: qemu-system-x86 1:6.2+dfsg-2ubuntu5
ProcVersionSignature: Ubuntu 5.15.0-22.22-generic 5.15.19
Uname: Linux 5.15.0-22-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu78
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: XFCE
Date: Tue Mar 1 21:40:21 2022
InstallationDate: Installed on 2017-06-13 (1722 days ago)
InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
KvmCmdLine: COMMAND STAT EUID RUID PID PPID %CPU COMMAND
MachineType: LENOVO 80UG
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-22-generic
root=UUID=6b4ae5c0-c78c-49a6-a1ba-029192618a7a ro quiet kvm.ignore_msrs=1
kvm.report_ignored_msrs=0 kvm.halt_poll_ns=0 kvm.halt_poll_ns_grow=0
i915.enable_gvt=1 nbd.nbds_max=2 nbd.max_part=127 mtrr_gran_size=128M
mtrr_chunk_size=256M log_buf_len=128M zswap.enabled=1 zswap.zpool=z3fold
usbhid.quirks=0x0079:0x0006:0x100000
SourcePackage: qemu
UpgradeStatus: Upgraded to jammy on 2019-12-22 (800 days ago)
dmi.bios.date: 08/09/2018
dmi.bios.release: 1.45
dmi.bios.vendor: LENOVO
dmi.bios.version: 0XCN45WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: Toronto 4A2
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40679 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 310-14ISK
dmi.ec.firmware.release: 1.45
dmi.modalias:
dmi:bvnLENOVO:bvr0XCN45WW:bd08/09/2018:br1.45:efr1.45:svnLENOVO:pn80UG:pvrLenovoideapad310-14ISK:rvnLENOVO:rnToronto4A2:rvrSDK0J40679WIN:cvnLENOVO:ct10:cvrLenovoideapad310-14ISK:skuLENOVO_MT_80UG_BU_idea_FM_Lenovoideapad310-14ISK:
dmi.product.family: IDEAPAD
dmi.product.name: 80UG
dmi.product.sku: LENOVO_MT_80UG_BU_idea_FM_Lenovo ideapad 310-14ISK
dmi.product.version: Lenovo ideapad 310-14ISK
dmi.sys.vendor: LENOVO
modified.conffile..etc.cron.daily.apport: [deleted]
** Affects: qemu (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug jammy package-from-proposed third-party-packages
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1962641
Title:
Unexpected disk writes when using -snapshot
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1962641/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
