On 6.1.2009 01:36, Robert Hancock wrote:
Jiri Slaby wrote:
I don't know since which moment (maybe I changed something in bios,
but usb
legacy kbd was ever enabled), but quirk_usb_disable_ehci takes for
both of my
ehci controllers 1.5 s.
More precisely, the time is spent in
pci_write_config_byte(pdev, offset + 3, 1);
by
outb((u8)value, 0xCFC + (reg & 3));
from pci_conf1_write deep in the callstack.
Is there any workaround known or something. Turning legacy usb off is
not an
option, I want to control grub.
Most likely the PCI config space write is causing some SMM trap and the
BIOS is taking forever to do whatever it's doing. It doesn't report that
the handoff failed, though?
Some time ago there was something like that:
http://kerneltrap.org/mailarchive/linux-kernel/2007/9/24/273262
I haven't seen it since that time.
I'd look for a BIOS update..
I can't find any, bad luck. It's some kind of testing machine sample...
Nevermind, it obviously doesn't occur during kexeced kernel bootup, I
can live with that :).
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