Messages in this thread Patch in this message |  | | Date | Tue, 29 Aug 2000 00:31:20 -0500 | From | "M.H.VanLeeuwen" <> | Subject | ISAPNP using an invalid IRQ, 2.4.0-test7 |
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With default BIOS settings, IRQ 5 is unavailable for ISA yet it is being assigned by the ne.c driver and NFS root system doesn't finish booting.
Is this a driver problem or a ISAPNP problem?
I changed drivers/pnp/isapnp.c to switch IRQ 5 & 9 to temporarily work around this problem, is there a better solution? Maybe, mask out the interrupts that aren't provided by the BIOS when reading this table?
static int isapnp_valid_irq(struct isapnp_cfgtmp *cfg, int idx) { /* IRQ priority: this table is good for i386 */ static unsigned short xtab[16] = { - 5, 10, 11, 12, 9, 14, 15, 7, 3, 4, 13, 0, 1, 6, 8, 2 + 9, 10, 11, 12, 5, 14, 15, 7, 3, 4, 13, 0, 1, 6, 8, 2 };
Here is a diff -u of dmesg's with and without "Assign IRQ for VGA" set in the BIOS. Don't know if it will be useful.
System is an ABIT BP6 dual 466's w/QQ bios, ~OC.
Martin
--- dmesg.vgairq Mon Aug 28 23:32:50 2000 +++ dmesg.novgairq Sat Aug 26 22:27:31 2000 @@ -42,6 +42,7 @@ Int: type 0, pol 0, trig 0, bus 2, IRQ 00, APIC ID 2, APIC INT 02 Int: type 0, pol 0, trig 0, bus 2, IRQ 03, APIC ID 2, APIC INT 03 Int: type 0, pol 0, trig 0, bus 2, IRQ 04, APIC ID 2, APIC INT 04 +Int: type 0, pol 0, trig 0, bus 2, IRQ 05, APIC ID 2, APIC INT 05 Int: type 0, pol 0, trig 0, bus 2, IRQ 06, APIC ID 2, APIC INT 06 Int: type 0, pol 0, trig 0, bus 2, IRQ 07, APIC ID 2, APIC INT 07 Int: type 0, pol 1, trig 1, bus 2, IRQ 08, APIC ID 2, APIC INT 08 @@ -53,7 +54,6 @@ Int: type 0, pol 3, trig 3, bus 0, IRQ 1f, APIC ID 2, APIC INT 13 Int: type 0, pol 3, trig 3, bus 0, IRQ 4c, APIC ID 2, APIC INT 12 Int: type 0, pol 3, trig 3, bus 0, IRQ 4d, APIC ID 2, APIC INT 12 -Int: type 0, pol 3, trig 3, bus 1, IRQ 00, APIC ID 2, APIC INT 10 Int: type 2, pol 0, trig 0, bus 2, IRQ 00, APIC ID 2, APIC INT 17 Lint: type 3, pol 0, trig 0, bus 0, IRQ 00, APIC ID ff, APIC LINT 00 Lint: type 1, pol 0, trig 0, bus 0, IRQ 00, APIC ID ff, APIC LINT 01 @@ -126,7 +126,7 @@ ...changing IO-APIC physical APIC ID to 2 ... ok. Synchronizing Arb IDs. init IO_APIC IRQs - IO-APIC (apicid-pin) 2-0, 2-5, 2-10, 2-11, 2-17, 2-20, 2-21, 2-22, 2-23 not connected. + IO-APIC (apicid-pin) 2-0, 2-10, 2-11, 2-16, 2-17, 2-20, 2-21, 2-22, 2-23 not connected. ..TIMER: vector=49 pin1=2 pin2=0 activating NMI Watchdog ... done. number of MP IRQ sources: 18. @@ -148,18 +148,18 @@ 02 003 03 0 0 0 0 0 1 1 31 03 003 03 0 0 0 0 0 1 1 41 04 003 03 0 0 0 0 0 1 1 49 - 05 000 00 1 0 0 0 0 0 0 00 - 06 003 03 0 0 0 0 0 1 1 51 - 07 003 03 0 0 0 0 0 1 1 59 - 08 003 03 0 0 0 0 0 1 1 61 - 09 003 03 0 0 0 0 0 1 1 69 + 05 003 03 0 0 0 0 0 1 1 51 + 06 003 03 0 0 0 0 0 1 1 59 + 07 003 03 0 0 0 0 0 1 1 61 + 08 003 03 0 0 0 0 0 1 1 69 + 09 003 03 0 0 0 0 0 1 1 71 0a 000 00 1 0 0 0 0 0 0 00 0b 000 00 1 0 0 0 0 0 0 00 - 0c 003 03 0 0 0 0 0 1 1 71 + 0c 003 03 0 0 0 0 0 1 1 79 0d 000 00 1 0 0 0 0 0 0 00 - 0e 003 03 0 0 0 0 0 1 1 79 - 0f 003 03 0 0 0 0 0 1 1 81 - 10 003 03 1 1 0 1 0 1 1 89 + 0e 003 03 0 0 0 0 0 1 1 81 + 0f 003 03 0 0 0 0 0 1 1 89 + 10 000 00 1 0 0 0 0 0 0 00 11 000 00 1 0 0 0 0 0 0 00 12 003 03 1 1 0 1 0 1 1 91 13 003 03 1 1 0 1 0 1 1 99 @@ -172,6 +172,7 @@ IRQ1 -> 1 IRQ3 -> 3 IRQ4 -> 4 +IRQ5 -> 5 IRQ6 -> 6 IRQ7 -> 7 IRQ8 -> 8 @@ -180,7 +181,6 @@ IRQ13 -> 13 IRQ14 -> 14 IRQ15 -> 15 -IRQ16 -> 16 IRQ18 -> 18 IRQ19 -> 19 .................................... done. @@ -202,7 +202,6 @@ PCI->APIC IRQ transform: (B0,I7,P3) -> 19 PCI->APIC IRQ transform: (B0,I19,P0) -> 18 PCI->APIC IRQ transform: (B0,I19,P1) -> 18 -PCI->APIC IRQ transform: (B1,I0,P0) -> 16 Limiting direct PCI/PCI transfers. isapnp: Scanning for Pnp cards... isapnp: Card 'SMC EZ Card (1660)' - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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