Date: Mon, 29 Jul 2013 04:03:45 +0900 (JST) From: Hiroki Sato <hrs@FreeBSD.org> To: sbruno@FreeBSD.org, sean_bruno@yahoo.com Cc: current@FreeBSD.org Subject: Re: NMI on shutdown Message-ID: <20130729.040345.660732812562263524.hrs@allbsd.org> In-Reply-To: <1374942794.1431.37.camel@localhost> References: <20130727.130641.1045344958497890348.hrs@allbsd.org> <1374942794.1431.37.camel@localhost>
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----Security_Multipart(Mon_Jul_29_04_03_45_2013_291)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sean Bruno <sean_bruno@yahoo.com> wrote in <1374942794.1431.37.camel@localhost>: se> :-) I just spent the week looking at something that looks like this on se> my Dell machines. In my testing the NMI EISA problem seems to be coming se> from the fact that IPMI pokes at both the ACPI and ISA interfaces to the se> IPMI controller resulting in an attempt to create /dev/ipmi0 se> and /dev/ipmi1. se> se> Somewhere in the recent past (affects 9 as well) the ACPI and ISA IPMI se> device nodes where children of the same parent and se> ipmi_isa.c::ipmi_isa_identitfy() would see the ACPI attachment and do se> nothing. Now the two interfaces have different parents in the device se> tree. se> se> On bce(4) based systems, even if not using IPMI, this seems to se> crash/confuse older version of the management firmware and yield results se> similar to what you see. se> se> I've just commited a tested fix from Yahoo on this that Peter and I se> worked out. see svn R 253708 Hmm, in my case the symptom does not depend on ipmi(4) (ipmi.ko was not loaded). I tried the patch in r253708 on stable/9 in both cases of loading the ipmi.ko or not loading it, but there was no difference. Did NMI happen on you box only when ipmi.ko was loaded? -- Hiroki ----Security_Multipart(Mon_Jul_29_04_03_45_2013_291)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (FreeBSD) iEYEABECAAYFAlH1axEACgkQTyzT2CeTzy0YMgCgwf1ADVoX2BnlGqBr0RYTUodQ 1W8AoNHGVYhKPBtMkf5609fRMfs8o5+L =94SW -----END PGP SIGNATURE----- ----Security_Multipart(Mon_Jul_29_04_03_45_2013_291)----
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