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: > > 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?