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[142.68.128.5]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6e43ba2be69sm18281116d6.15.2025.02.07.07.54.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Feb 2025 07:54:57 -0800 (PST) Received: from jgg by wakko with local (Exim 4.97) (envelope-from ) id 1tgQgy-0000000FNdT-38ej; Fri, 07 Feb 2025 11:54:56 -0400 Date: Fri, 7 Feb 2025 11:54:56 -0400 From: Jason Gunthorpe To: Mitchell Augustin Cc: saeedm@nvidia.com, leon@kernel.org, tariqt@nvidia.com, andrew+netdev@lunn.ch, "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , netdev@vger.kernel.org, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Talat Batheesh , Feras Daoud Subject: Re: modprobe mlx5_core on OCI bare-metal instance causes unrecoverable hang and I/O error Message-ID: <20250207155456.GA3665725@ziepe.ca> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Wed, Feb 05, 2025 at 05:09:13PM -0600, Mitchell Augustin wrote: > Hello, > > I have identified a bug in the mlx5_core module, or some related component. > > Doing the following on a freshly provisioned Oracle Cloud bare metal > node with this configuration [0] will reliably cause the entire > instance to become unresponsive: > > rmmod mlx5_ib; rmmod mlx5_core; modprobe mlx5_core > > This also produces the following output: > > [ 331.267175] I/O error, dev sda, sector 35602992 op 0x0:(READ) flags > 0x80700 phys_seg 33 prio class 0 Is it using iscsi/srp/nfs/etc for any filesystems? Jason