Date: Sat, 19 May 2001 11:45:00 -0700 From: Mike Smith <msmith@freebsd.org> To: John Polstra <jdp@polstra.com> Cc: Warner Losh <imp@harmony.village.org>, current@FreeBSD.ORG Subject: Re: GENERIC kernel hangs at boot (uhci-related) Message-ID: <200105191845.f4JIj0K01284@mass.dis.org> In-Reply-To: Your message of "Sat, 19 May 2001 11:22:46 PDT." <XFMail.010519112246.jdp@polstra.com>
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> I have some more information about this now. There is a BIOS knob
> "USB IRQ" which can be set to Disabled or Enabled. If it is Disabled,
> the hangs occur as I described. If it is Enabled, everything works
> fine. I think it ought to boot in either case (-4.x does). I am not
> actually using the USB ports, so it seems silly to tie up an interrupt
> for them.
You're not tying up an interrupt; PCI interrupts are shared. With the
new PCI code, even if you turn it off, we'll just turn it right back on
again. 8)
The problem appears to be a bug in the UHCI driver.
--
... every activity meets with opposition, everyone who acts has his
rivals and unfortunately opponents also. But not because people want
to be opponents, rather because the tasks and relationships force
people to take different points of view. [Dr. Fritz Todt]
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