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Tue, 21 Apr 2026 15:24:18 -0700 (PDT) Date: Tue, 21 Apr 2026 23:24:17 +0100 From: Matt Fleming To: Corey Minyard Cc: Matt Fleming , openipmi-developer@lists.sourceforge.net, Tony Camuso , linux-kernel@vger.kernel.org, kernel-team@cloudflare.com Subject: Re: [PATCH 0/1] ipmi: Fix issues with BMCs that report event and message incorrectly Message-ID: References: <20260421132544.2666174-1-corey@minyard.net> 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: <20260421132544.2666174-1-corey@minyard.net> On Tue, Apr 21, 2026 at 07:42:42AM -0500, Corey Minyard wrote: > Matt reported that there were issues with the IPMI driver getting wedged > in some cases. It turns out that the BMC was not reporting an error as > it should have (per the spec) when the event queue was empty. The IPMI > driver would then request the next event, and so on, wedging the driver. Thanks for replying so quickly, Corey. I'll test these out. One bit of info I pulled out of the stuck machine is that the response looks properly formed. I sampled the first 8 entries and they were all identical 19-byte successful READ_EVENT_MSG_BUFFER responses: 1c 35 00 55 55 c0 41 a7 00 00 00 00 00 3a ff 00 ff ff ff So on this machine, the event replies do not look short or malformed; they look like repeated successful event-buffer reads with the same payload. Thanks, Matt