On Thu, Apr 25, 2024 at 05:47:28PM -0700, Luis Chamberlain wrote: > On Thu, Apr 25, 2024 at 09:10:16PM +0100, Matthew Wilcox wrote: > > On Thu, Apr 25, 2024 at 01:37:40PM +0200, Pankaj Raghav (Samsung) wrote: > > > From: Pankaj Raghav <p.raghav@xxxxxxxxxxx> > > > > > > using that API for LBS is resulting in an NULL ptr dereference > > > error in the writeback path [1]. > > > > > > [1] https://gist.github.com/mcgrof/d12f586ec6ebe32b2472b5d634c397df > > > > How would I go about reproducing this? > > Using kdevops this is easy: > > make defconfig-lbs-xfs-small -j $(nproc) > make -j $(nproc) I forgot after the above: make bringup > make fstests > make linux > make fstests-baseline TESTS=generic/447 COUNT=10 > tail -f guestfs/*-xfs-reflink-16k-4ks/console.log The above tail command needs sudo prefix for now too. > or > sudo virsh list > sudo virsh console ${foo}-xfs-reflink-16k-4ks > > Where $foo is the value of CONFIG_KDEVOPS_HOSTS_PREFIX in .config for > your kdevops run. > > I didn't have time to verify if the above commands for kdevops worked I did now, I forgot to git push commits to kdevops yesterday but I confirm the above steps can be used to repdroduce this issue now. Luis