On Fri, 2026-02-27 at 10:54 +0100, Thorsten Leemhuis wrote: > > This was discovered on the Debian openQA infrastructure server when > > upgrading kernel from v6.12.48 to later v6.12.y where worker hosts (with > > any earlier or later kernel version) pass NFSv3 mounted ISO images to > > qemu-system-x86_64 and it reports: > > > > !!! : qemu-system-x86_64: -device > > scsi-cd,id=cd0-device,drive=cd0-overlay0,serial=cd0: Failed to get > > "consistent read" lock: No locks available > > QEMU: Is another process using the image > > [/var/lib/openqa/pool/2/20260223-1-debian-testing-amd64-netinst.iso]? > >
I have to wonder if this is a QEMU bug too: Why is it opening a file read-only and then taking out an exclusive lock on it? What's the point of denying access to other readers? -- Jeff Layton <[email protected]>

