Date: Sat, 25 Sep 2004 18:22:10 +0200 From: Matthias Schuendehuette <msch@snafu.de> To: John Baldwin <jhb@freebsd.org> Cc: current@freebsd.org Subject: Re: IRQ-Routing for 5.3-BETA Message-ID: <200409251822.11019.msch@snafu.de> In-Reply-To: <200409251643.19401.msch@snafu.de> References: <200409232235.08683.msch@snafu.de> <200409241514.53704.jhb@FreeBSD.org> <200409251643.19401.msch@snafu.de>
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On Saturday 25 September 2004 16:43, Matthias Schuendehuette wrote: > Hi John, > > On Friday 24 September 2004 21:14, John Baldwin wrote: > > Umm the list of IRQ numbers is the list of valid IRQs. Your BIOS > > is _ineded_ buggy. Note that for the IRQ in question it says this: > > > > > > \_SB_.PCI0.LNKA irq 9: [ 1 3 4 5 6 7 10 11 12 14 15] > > low,level,sharable 0.1.0 > > > > I.e., I'm using IRQ 9, but 9 is not in the list of valid IRQs which > > includes 1, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15. Thus, the > > kernel believes what your broken BIOS says and throws out IRQ 9 and > > tries to use IRQ 10 instead, which your BIOS claims is open for use > > even though you've told it its not. One thing you can try is a > > patch Nate has to always treat ACPI's interrupt (IRQ 9 usually) as > > a valid interrupt for the link device to use. > > Umm... this seems to be completely logic. > > I reconfigured my ISDN-Card to use IRQ2/9 (which was more simple than > I remembered :-) and it works! Shame on me, sometimes it's really too > simple... This really works for FreeBSD 5.3-BETA5 of today, but it works *only* with IRQ 2/9. I also tried IRQ 5, which is not used by any other device (a least I couldn't find any notice about irq5 in the boot -v messages but for isic0), and this does not work with the same messages as with IRQ 10. Somehow I have the uncertain feeling that the new IRQ-Routing code has still some deficencies, at least for ISA-style IRQs... But it's no longer a severe problem for me, so I can follow RELENG_5 again. -- Ciao/BSD - Matthias Matthias Schuendehuette <msch [at] snafu.de>, Berlin (Germany) PGP-Key at <pgp.mit.edu> and <wwwkeys.de.pgp.net> ID: 0xDDFB0A5F
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