Date: Tue, 12 Apr 2005 09:27:32 +0200 From: Antoine Brodin <antoine.brodin@laposte.net> To: John Baldwin <jhb@FreeBSD.org> Cc: nate@root.org Subject: Re: Interrupt storm Message-ID: <20050412092732.72c9c87a.antoine.brodin@laposte.net> In-Reply-To: <200504112031.26979.jhb@FreeBSD.org> References: <b37cb09705032911295ce15f84@mail.gmail.com> <200504081529.33026.jhb@FreeBSD.org> <20050409115745.31a0059c.antoine.brodin@laposte.net> <200504112031.26979.jhb@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
John Baldwin <jhb@FreeBSD.org> wrote: > On Saturday 09 April 2005 05:57 am, Antoine Brodin wrote: > > John Baldwin <jhb@FreeBSD.org> wrote: > > > I think your other link devices are meant to be used in APIC mode (note > > > their names start with 'A') and thus I think they are aliases for the > > > other link devices. So when I turn off the alias, I turn off the > > > non-APIC mode one as well. Working BIOSen handle this by having the same > > > link device change its behavior (different _PRS return values) depending > > > on the PIC mode. It's not easy to determine if a link is just not used > > > (for example, if no card is plugged into a slot with a dedicated link) or > > > if it's an alias. I think having two ACPI devices alias to the same > > > hardware is a bug in the BIOS though. Perhaps your BIOS vendor can be > > > convinced to fix this. Can you see if Linux has the same problem btw? > > > > I've just sent a technical support request to ASUS. I'll let you know > > when they reply. > > Linux doesn't have the same problem: I tested with a knoppix live cd > > yesterday. > > dmesg: http://bsd.miki.eu.org/~antoine/knoppix36.dmesg , but it doesn't > > look very helpful. > > Actually, it is. What Linux is doing is probing all the link devices before > it probes any PCI devices, so all the _DIS calls happen before any interrupts > are routed. I believe Nate knows how to get FreeBSD to do something similar > via a hack. There's this hack that works here: %%% Index: acpi.c =================================================================== RCS file: /home/ncvs/src/sys/dev/acpica/acpi.c,v retrieving revision 1.210 diff -u -p -r1.210 acpi.c --- acpi.c 31 Mar 2005 19:07:26 -0000 1.210 +++ acpi.c 9 Apr 2005 09:50:54 -0000 @@ -1503,6 +1503,9 @@ acpi_probe_order(ACPI_HANDLE handle, int } else if (acpi_MatchHid(handle, "PNP0C09")) { *order = 2; ret = 1; + } else if (acpi_MatchHid(handle, "PNP0C0F")) { + *order = 3; + ret = 1; } return (ret); %%% Cheers, Antoine
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20050412092732.72c9c87a.antoine.brodin>