Messages in this thread | | | Date | Tue, 11 Feb 2003 02:45:33 +0100 (MET) | From | Mikael Pettersson <> | Subject | Re: Incompatibility between 'Local APIC' and '8139too' |
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On Tue, 11 Feb 2003 00:47:12 +0100, Nicolas Baradakis wrote: >Activating the option 'Local APIC support on uniprocessors' prevents >the network device '8139too' from transmitting any packet. >... >The workaround is to boot the kernel with the option 'noapic' or >recompile it without the option 'Local APIC', and then the network >device works perfectly. ... >>From the debian package 'kernel-source-2.4.20_2.4.20-5_all.deb'
I strongly believe your problems are related to the I/O APIC, not the local APIC:
- the local APIC has minimal impact on system-level IRQ handling, whereas the impact from the I/O APIC by definition is major
- the 'noapic' option disables the I/O APIC, NOT the local APIC (at least in all standard kernels, Debian may have broken this)
- disabling the local APIC kernel option also disables I/O APIC on uniprocessor support - 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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