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Created attachment 1206986 [details] journalctl output for the boot Description of problem Multiple oops on boot. Version-Release number of selected component (if applicable): 4.8.0-1.fc26.x86_64 Additional info: Booted back to rc8, which was ok. Rebooted again into 4.8.0 final and there wasn't an oops.
Just to clarify, this oops was only seen once?
Yes, just happened once. The next reboot it was gone. Not sure if it is a timing problem, so will just have to watch reboots to see if it happens again.
I suspect it may be a random bit flip. The crash occurred in the memory allocator so everything that attempted to allocate crashed. We can monitor and see if it re-occurs.
I agree, this seems like an oddity. Either it was a bit flip, or the slab allocator returned a pointer so large that when get_alloc_info computed the kasan offset, it overflowed to exactly zero/NULL. Either way it needs to be reproducible to make progress.
please repoen if it occurs again