bce(4) panics, 9.2rc1 [redux]
hrs at FreeBSD.org
Wed Jul 31 06:54:59 UTC 2013
[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
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 at yahoo.com> wrote
in <1375208841.1496.3.camel at localhost>:
se> > http://svnweb.freebsd.org/base?view=revision&revision=236216
se> Ok, confirmed after ~50 reboots.
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> 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> 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> p.s. sorry for the late report as the commit is well over a year old.
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