Comment 4 for bug 1951289

I found that I could reproduce this with mainline 5.11, but not mainline 5.13. I bisected it to find the change that fixed it, and hit:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=620a6dc40754dc218f5b6389b5d335e9a107fd29

This cherry-picks back to hirsute, and I verified that it solves the problem. I haven't tried going back further, but I can. It seems like we'd want to submit this to stable, but I don't feel I'm able to sufficiently provide justification as the test itself isn't clear to me.