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Surprising I did not hit the same on the guest VM. After bisecting, found that Reverting [9f4107b07b17b5ee68af680150f91227bea2df6f] block: store bdev->bd_disk->fops->submit_bio state in bdev Helped me to boot back the system. Can you please confirm Thanks - Raghu >> >>>>   Nothing useful is seen on >>>> serial console after that.  This was working late last week.  Other >>>> older kernels boot OK, so >>>> I think is is related to the kernel. >>> >>> What is your setup (especially kernel config)? >>> >>> Is v6.3 works for you? I haven't seen this regression on my computer >>> using v6.3. >> >> Ben, you just to be sure might want to check if a kernel image that >> currently works still boots if you regenerate its initramfs: maybe the >> initramfs generator or something it uses changed recently and is causing >> your problem. I've seen a case or two where that was the case. >> >>>> I have not yet started bisect, curious if this is already know problem. >>> Certainly you should try bisection. >> >> Yeah. >> >> BTW: What kind of platform is this? >> >> Ciao, Thorsten >> >