Re: Need help with a weird kernel update panic.

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On 5/12/20 4:38 PM, John Mellor wrote:
Hi Samuel,
But that's the point.  A default install uses LVM, and therefore constructs a separate /boot partition running EXT4 with a journal.  You may of course decide to do your own partitions, but that setup is highly unusual and rare.  Most people will have the default partitioning, and therefore have the kernel upgrade bug.

Except that I've never heard anyone complain about that. It should not happen with ext4. If it does, there's a problem. Apparently btrfs is a little more lax about flushing the journal which has caused problems, but ext4 is not. If you unmount or remount RO an ext4 filesystem, it will flush the journal before finishing. So if you're finding that the journal has not been flushed, then you had an unclean unmount and need to find out why that's happening.
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