On Wed, 28 Aug 2024 12:52:25 +0100, David Howells via samba-technical wrote: > Okay, that fixes the problem. > > For reference, the file can be prepared thusly: > > xfs_io -c "pwrite 0 16M" -c "fpunch 0 1M" -c "fpunch 2M 1M" -c "fpunch 4M 1M" -c "fpunch 6M 1M" -c "fpunch 8M 1M" /xfstest.test/foo > > and then the test run: > > xfs_io -c "seek -h 1" /xfstest.test/foo > > Something like punch-hole is needed to set the sparse flag - otherwise QAR > isn't used by llseek(). > > So: > > Tested-by: David Howells <dhowells@xxxxxxxxxx> > > if you need it. I appreciate the test feedback. The change has already been committed (with you referenced in Reported-by). > The Fedora samba version I applied this to was: > > samba-4.19.7-1.fc39.x86_64 > > though I had to drop the testing bits as they didn't build. Yes, as mentioned, samba >= 4.20 is needed for the test's torture_assert_size_equal() calls. Cheers, David