On Tue, May 31, 2022 at 08:29:19AM +1000, Dave Chinner wrote:

On Tue, May 31, 2022 at 02:39:08AM +0800, Zorro Lang wrote:

quoted

It's not a regression *recently* at least, I still can reproduce this bug on
linux v5.16.

But I found it's related with someone kernel configuration (sorry I haven't
figured out which one config is). I've upload two kernel config files, one[1]
can build a kernel which reproduce this bug, the other[2] can't. Hope that
helps.

Thanks,
Zorro

[1]
https://bugzilla.kernel.org/attachment.cgi?id=301076

[2]
https://bugzilla.kernel.org/attachment.cgi?id=301077

Rather than make anyone looking at this download multiple files and
run diff, perhaps you could just post the output of 'diff -u
config.good config.bad'?

You guys know about tools/testing/ktest/config-bisect.pl right?