Hello James Thanks for the investigation I have a baremetal host on Resolute with kernel 7.0.0-13-generic
$ ./lp2169551-repro.sh check kernel: 7.0.0-13-generic cmdline: BOOT_IMAGE=/boot/vmlinuz-7.0.0-13-generic root=UUID=3b22f89f-a42e-4c93-b451-81a7e19862b4 ro noexec=off kvm_intel.tdx=1 nohibernate nvme_core.multipath=N iommu groups: DMA-FQ=62 nvme multipath param: N nvme0n1: model='SAMSUNG MZVL21T0HCLR-00A00' max_sectors_kb=128 max_segments=33 virt_boundary_mask=4095 dma_alignment=3 host NVMe I/O errors in the kernel log (the Ubuntu 7.0 signature of this bug): $ ./lp2169551-repro.sh host >> O_DIRECT gapvec test on /home/ubuntu (fs: /dev/nvme0n1p2 ext4) 1 write=294912 read=294912 verify=OK 2 write=294912 read=294912 verify=OK 3 write=294912 read=294912 verify=OK 4 write=294912 read=294912 verify=OK 5 write=294912 read=294912 verify=OK 6 write=294912 read=294912 verify=OK 7 write=294912 read=294912 verify=OK 8 write=294912 read=294912 verify=OK 9 write=294912 read=294912 verify=OK 10 write=294912 read=294912 verify=OK GAPVEC-RESULT loops=10 FAIL=0 >> host kernel log since 2026-10-24 17:47:19: I don't think I can reproduce the write issues, any thought ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2169551 Title: VMs on ephemeral fails to boot [arm64, amd64] To manage notifications about this bug go to: https://bugs.launchpad.net/charm-nova-compute/+bug/2169551/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
