Date: Wed, 31 Jul 2013 15:54:06 +0900 (JST) From: Hiroki Sato <hrs@FreeBSD.org> To: sbruno@FreeBSD.org, sean_bruno@yahoo.com, yongari@FreeBSD.org, davidch@FreeBSD.org Cc: freebsd-net@FreeBSD.org, hrs@FreeBSD.org Subject: Re: bce(4) panics, 9.2rc1 [redux] Message-ID: <20130731.155406.1300421756782257141.hrs@allbsd.org> In-Reply-To: <1375208841.1496.3.camel@localhost> References: <1374700042.1493.14.camel@localhost> <1375145809.1488.3.camel@localhost> <1375208841.1496.3.camel@localhost>
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----Security_Multipart(Wed_Jul_31_15_54_06_2013_316)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit [Added yougari@ and davidch@ to the To:/Cc: list] I confirmed that my issue reported on -current@ is due to the bxe(4) driver (BCM57711). If it is disabled, shutdown works fine without NMI. Also, I received several reports about the same box that NMI occurred even on bge(4) (BCM5717) driver when probing during power-cycle test. The probability was about once per 30 power-cycles. Once it occurred, an AC on/off cycle was required (resetting a system reproduced the NMI in the same timing). Sean Bruno <sean_bruno@yahoo.com> wrote in <1375208841.1496.3.camel@localhost>: se> se> se> > http://svnweb.freebsd.org/base?view=revision&revision=236216 se> > se> > se> se> se> Ok, confirmed after ~50 reboots. se> se> There is a timing problem in this revision that I don't fully se> understand. Adding printf's inside bce_reset() will cause the existing se> code to succeed, and sometimes the existing code in this revision will se> work (about 10% of the time). se> se> In the failure mode, the network interface, bce0, will not come up into se> service *without* and network restart, after which it works fine. se> se> I suspect that we are missing a DELAY or UDELAY somewhere in the se> restoral of the emac_status settings that needs to be implemented. se> se> Sean se> se> p.s. sorry for the late report as the commit is well over a year old. ----Security_Multipart(Wed_Jul_31_15_54_06_2013_316)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (FreeBSD) iEYEABECAAYFAlH4tI4ACgkQTyzT2CeTzy1/egCgnIMUjbvmbKJwTIGwFs6J8iXa Gw4AmgP7pjruhnMdZP6gNjqVU3bRtxQj =GINz -----END PGP SIGNATURE----- ----Security_Multipart(Wed_Jul_31_15_54_06_2013_316)----
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