pnp code and irq 2 broken
From: John Hay (jhay_at_icomtek.csir.co.za)
Date: 08/27/03
- Previous message: Peter Wemm: "Re: RCng -- INFO: X depends on Y, which will be forced to start."
- Next in thread: M. Warner Losh: "Re: pnp code and irq 2 broken"
- Reply: M. Warner Losh: "Re: pnp code and irq 2 broken"
- Reply: Doug Rabson: "Re: pnp code and irq 2 broken"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Date: Wed, 27 Aug 2003 07:45:50 +0200 To: freebsd-arch@freebsd.org
Hi,
Somewhere along the line the code in FreeBSD that maps irq 2 to irq 9 has
gone away and a panic was added if one tries to use irq 2. This is all
well and fine, except that the pnp code was not notified of this. :-) So
if you have a pnp device that have irq 2 in its mask and FreeBSD then
decides that irq 2 is a good irq to use for this device, you have an
instant panic.
I have worked around it with this crude patch below. Crude because:
1) I don't know if it should be an i386 only fix, and
2) I used 0x04 directly, maybe IRQ_SLAVE from i386/isa/icu.h or
some other define should be used?
Any comments from anyone?
John
-- John Hay -- John.Hay@icomtek.csir.co.za / jhay@FreeBSD.org Index: isa/pnpparse.c =================================================================== RCS file: /home/ncvs/src/sys/isa/pnpparse.c,v retrieving revision 1.13 diff -u -r1.13 pnpparse.c --- isa/pnpparse.c 16 Oct 2002 09:07:30 -0000 1.13 +++ isa/pnpparse.c 19 Jun 2003 06:00:02 -0000 @@ -110,7 +110,8 @@ if (bootverbose) pnp_printf(id, "adding irq mask %#02x\n", I16(res)); - config->ic_irqmask[config->ic_nirq] = I16(res); + config->ic_irqmask[config->ic_nirq] = I16(res) & + ~0x04; config->ic_nirq++; break; _______________________________________________ freebsd-arch@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-arch To unsubscribe, send any mail to "freebsd-arch-unsubscribe@freebsd.org"
- Previous message: Peter Wemm: "Re: RCng -- INFO: X depends on Y, which will be forced to start."
- Next in thread: M. Warner Losh: "Re: pnp code and irq 2 broken"
- Reply: M. Warner Losh: "Re: pnp code and irq 2 broken"
- Reply: Doug Rabson: "Re: pnp code and irq 2 broken"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Relevant Pages
|
|
