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[49.180.20.59]) by smtp.gmail.com with ESMTPSA id j9-20020a17090276c900b001ca82a4a9c8sm6985460plt.269.2023.11.07.00.13.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Nov 2023 00:13:41 -0800 (PST) Received: from dave by dread.disaster.area with local (Exim 4.96) (envelope-from ) id 1r0HDP-009LBD-09; Tue, 07 Nov 2023 19:13:39 +1100 Date: Tue, 7 Nov 2023 19:13:39 +1100 From: Dave Chinner To: Zorro Lang Cc: linux-xfs@vger.kernel.org, fstests@vger.kernel.org, "Darrick J. Wong" , Carlos Maiolino Subject: Re: [Bug report][fstests generic/047] Internal error !(flags & XFS_DABUF_MAP_HOLE_OK) at line 2572 of file fs/xfs/libxfs/xfs_da_btree.c. Caller xfs_dabuf_map.constprop.0+0x26c/0x368 [xfs] Message-ID: References: <20231029041122.bx2k7wwm7otebjd5@dell-per750-06-vm-08.rhts.eng.pek2.redhat.com> <20231106192627.ilvijcbpmp3l3wcz@dell-per750-06-vm-08.rhts.eng.pek2.redhat.com> <20231107080522.5lowalssbmi6lus3@dell-per750-06-vm-08.rhts.eng.pek2.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231107080522.5lowalssbmi6lus3@dell-per750-06-vm-08.rhts.eng.pek2.redhat.com> Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org On Tue, Nov 07, 2023 at 04:05:22PM +0800, Zorro Lang wrote: > On Tue, Nov 07, 2023 at 07:33:50AM +1100, Dave Chinner wrote: > > On Tue, Nov 07, 2023 at 03:26:27AM +0800, Zorro Lang wrote: > > > Thanks for your reply :) I tried to do a kernel bisect long time, but > > > find nothing ... Then suddently, I found it's failed from a xfsprogs > > > change [1]. > > > > > > Although that's not the root cause of this bug (on s390x), it just > > > enabled "nrext64" by default, which I never tested on s390x before. > > > For now, we know this's an issue about this feature, and only on > > > s390x for now. > > > > That's not good. Can you please determine if this is a zero-day bug > > with the nrext64 feature? I think it was merged in 5.19, so if you > > could try to reproduce it on a 5.18 and 5.19 kernels first, that > > would be handy. > > Unfortunately, it's a bug be there nearly from beginning. The linux v5.19 > can trigger this bug (with latest xfsprogs for-next branch): Ok. Can you grab the pahole output for the xfs_dinode and xfs_log_dinode for s390 from both 5.18 and 5.19 kernel builds? (i.e. 'pahole fs/xfs/xfs_inode.o |less' and search for the two structures). Cheers, Dave. -- Dave Chinner david@fromorbit.com