On Wed, 28 Aug 2024 at 09:13, Nico Boehr <n...@linux.ibm.com> wrote: > > Quoting Nico Boehr (2024-08-26 14:08:20) > > There was a little hickup without the fixup to patch 2, but after Nina > > pushed the fixup, we did not observe any failures related to your > > changes in our CI. Thanks! > > Peter, after a few CI runs, we unfortunately did find some issues with your > patch :-( > > Rebooting a guest in a loop sometimes fails. Michael was able to bisect it > to your series. > > The problem is intermittent. The guest is unable to load its initramfs: > > [ 0.560674] rootfs image is not initramfs (no cpio magic); looks like an > initrd > [ 0.588605] Freeing initrd memory: 95680K > [ 0.593143] md: Waiting for all devices to be available before autodetect > [ 0.593144] md: If you don't use raid, use raid=noautodetect > [ 0.593145] md: Autodetecting RAID arrays. > [ 0.593146] md: autorun ... > [ 0.593147] md: ... autorun DONE. > [ 0.593156] RAMDISK: gzip image found at block 0 > [ 0.609110] RAMDISK: incomplete write (29120 != 32768) > [ 0.609113] write error > > ...and then a panic because the kernel doesn't find a rootfs. > > It seems like the compressed initramfs is corrupted somehow, since "rootfs > image is not initramfs" doesn't appear on a successful boot. > > initramfs and kernel are loaded via direct kernel boot. Running under KVM. > > Some vhost error messages do appear before the guest panics, but it is not > entirely clear to me whether they are related: > > [...] > 2024-08-28T06:56:29.765324Z qemu-system-s390x: vhost vring error in > virtqueue 0: Invalid argument (22) > 2024-08-28T06:56:32.210982Z qemu-system-s390x: vhost vring error in > virtqueue 0: Invalid argument (22) > 2024-08-28 06:56:35.430+0000: panic s390: core='0' > psw-mask='0x0002000180000000' psw-addr='0x00000387b028c67e' > reason='disabled-wait' > > Any idea?
Well, the series is *supposed* to be just a refactoring, not a change of behaviour, so I'm not sure. I don't suppose you have a reproduce case that I can run? (I do have access to an s390 machine if that helps.) thanks -- PMM
