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Date:      Thu, 21 May 2015 07:53:09 +0200
From:      Andreas Andersson <aandersson@tappsi.co>
To:        freebsd-arm@freebsd.org
Subject:   smsc0 driver on rpi2
Message-ID:  <CAOx9_Zi6kmgEiKsKG84hR%2Bt1V7afEC=BspcmHCXYHOaKOvQQeA@mail.gmail.com>

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I am getting alot of:

smsc0: warning: Failed to read register 0x114
smsc0: warning: MII is busy
smsc0: warning: Failed to write register 0x114
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII is busy
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII is busy
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII is busy
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII is busy
smsc0: warning: Failed to write register 0x114
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII read timeout
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII read timeout
smsc0: warning: Failed to write register 0x114
smsc0: warning: Failed to write register 0x114
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII is busy
smsc0: warning: Failed to write register 0x114
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII is busy
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII read timeout
smsc0: warning: Failed to write register 0x114
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII is busy
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII is busy
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII is busy
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII is busy
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII read timeout
smsc0: warning: Failed to read register 0x114
smsc0: warning: MII is busy

.

This happends when the rpi2 has been turned on for some while. And the
raspberry becomes pretty slow and laggy when this error occurs. CPU when
looking at top is pretty much idle across all cores, but load averages
are: 7:23AM  up 13:51, 5 users, load averages: 3.70, 3.37, 3.24

Can I somehow debug this to give you more information?



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