Re: [PATCH 0/1] ipmi: Fix issues with BMCs that report event and message incorrectly

[Matt Fleming]

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