OK Turns out my btrfs+floppy bug is indeed a kernel floppy matter, and the btrfs scan just 'triggers' the fault.
The new kernel floppy maintainer says:-
This patch should fix the problem:
263c61581a38 ("block/floppy: fix contended case in floppy_queue_rq()")
The commit id in stable tree is 29ed45653bec.
> ubuntu kernel 5.4.0-42-generic
I think that these versions don't contain the fix. The fix is in the
5.4 kernel since 5.4.47 version.
SO, looks like my related comment is a red-herring and (should) be fixed by routine updates to 5.4.0 ubuntu kernel updates!.
OK Turns out my btrfs+floppy bug is indeed a kernel floppy matter, and the btrfs scan just 'triggers' the fault.
The new kernel floppy maintainer says:-
This patch should fix the problem:
263c61581a38 ("block/floppy: fix contended case in floppy_queue_rq()")
The commit id in stable tree is 29ed45653bec.
> ubuntu kernel 5.4.0-42-generic
I think that these versions don't contain the fix. The fix is in the
5.4 kernel since 5.4.47 version.
SO, looks like my related comment is a red-herring and (should) be fixed by routine updates to 5.4.0 ubuntu kernel updates!.