Messages in this thread Patch in this message |  | | Date | Fri, 3 Jan 2003 17:48:44 +0000 (GMT) | From | Hugh Dickins <> | Subject | [PATCH] I/O APIC confusion |
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Dell 2600 could not bring up its MPT Fusion and hung there: I/O APIC #7 at 0xFEC82000 was muddled with #8 at 0xFEC82800, because the IO_APIC_BASE fixmap macro assumed page boundary.
No longer do I think all those I/O APIC messages at startup a waste of log buffer! Patch against 2.5.54: first appeared in 2.4.18, then 2.5-dj: please apply.
Hugh
--- 2.5.54/include/asm-i386/io_apic.h Wed Nov 27 23:48:16 2002 +++ linux/include/asm-i386/io_apic.h Fri Jan 3 14:29:44 2003 @@ -16,7 +16,8 @@ #define APIC_MISMATCH_DEBUG #define IO_APIC_BASE(idx) \ - ((volatile int *)__fix_to_virt(FIX_IO_APIC_BASE_0 + idx)) + ((volatile int *)(__fix_to_virt(FIX_IO_APIC_BASE_0 + idx) \ + + (mp_ioapics[idx].mpc_apicaddr & ~PAGE_MASK))) /* * The structure of the IO-APIC: - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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