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+id = 1569
+title = "NVMe FS operations hang after suspending and resuming both guest and host"
+state = "opened"
+created_at = "2023-03-30T19:26:39.695Z"
+closed_at = "n/a"
+labels = []
+url = "https://gitlab.com/qemu-project/qemu/-/issues/1569"
+host-os = "Arch Linux"
+host-arch = "x86_64"
+qemu-version = "7.2.0 (Arch Linux package release 4)"
+guest-os = "Void Linux"
+guest-arch = "x86_64"
+description = """Hello and thank you for your work on QEMU!
+
+Using the NVMe driver with my Seagate FireCuda 530 2TB M.2 works fine until I encounter this problem, which is reliably reproducible for me.
+
+When I suspend the guest and then suspend (s2idle) my host all is well until I resume the guest (manually with `virsh dompmwakeup $VMNAME`, after the host has resumed). Although the guest resumes and is interactive, it seems that anything involving filesystem operations hang forever and do not return.
+
+Suspending and resuming the Linux guest seems to work perfectly if I don't suspend/resume the host.
+
+Ultimately what I'm wanting to do is share the drive between VMs with qemu-storage-daemon. I can reproduce the problem in that scenario in much the same way. Using PCI passthrough with the same VM and device works fine and doesn't exhibit this problem.
+
+Hopefully that's clear enough - let me know if there's anything else I can provide."""
+reproduce = """1. Create a VM with a dedicated NVMe disk.
+2. Boot an ISO and install to the disk.
+3. Verify that suspend and resume works when not suspending the host.
+4. Suspend the guest.
+5. Suspend the host.
+6. Wake the host.
+7. Wake the guest.
+8. Try just about anything that isn't likely already cached somewhere: `du -s /etc`."""
+additional = """I've attached the libvirt domain XML[1] and libvirtd debug logs for QEMU[2] ("1:qemu") that covers suspending the guest & host, resuming host & guest and doing something to cause a hang. I tried to leave enough time afterwards for any timeout to occur.
+
+1. [nvme-voidlinux.xml](/uploads/1dea47af096ce58175f7aa526eca455e/nvme-voidlinux.xml)
+2. [nvme-qemu-debug.log](/uploads/42d3bed456a795069023a61d38fa5ccd/nvme-qemu-debug.log)"""