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[Bug 598520] ahci driver fails to initialize controller on Dell Optiplex 960
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Thu, 22 Apr 2010 10:20:37 +0000
  • Message-id: <20100422102037.B64772454D6@xxxxxxxxxxxxxxxxxxxxxx>
http://bugzilla.novell.com/show_bug.cgi?id=598520

http://bugzilla.novell.com/show_bug.cgi?id=598520#c1


Tejun Heo <teheo@xxxxxxxxxx> changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
InfoProvider| |max@xxxxxxxxxx

--- Comment #1 from Tejun Heo <teheo@xxxxxxxxxx> 2010-04-22 10:20:37 UTC ---
Hmm... 11.2 still works, right? This is very weird. It looks like the driver
is having problem talking to the controller. The "forcing PORTS_IMPL to 0x1"
message means that PORT_IMPL doesn't agree with HOST_CAP. No recent intel
chips show such problems and on 11.2 the two registers agree. Then, controller
fails to clear reset after 1 sec. It looks like a problem in lower layer, most
likely PCI. The driver doesn't seem to be talking with the ahci controller at
all. Can you please post full kernel log? Also, please attach full output of
"lspci -nnv".

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