Messages in this thread | | | Date | Wed, 22 Feb 2006 11:43:42 +0100 | From | Nils Rennebarth <> | Subject | Loading e100 and uhcd-hcd at (almost) same time disables IRQ with 2.6.16-rc4 |
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This is with a supermicro P3TSSE mainboard, with an Intel 815E chipset, where the two integrated network adapters (Intel82559 10/100 Ethernet) and one of the two usb host adapters share the same IRQ (irq 11).
When udev synthesizes hotplug events during boot and there is interrupt activity (e.g. by flood pinging one interface) I get an "irq 11: nobody cared" message followed by a traceback and "Disabling IRQ #11". After that unsurprisingly both network adapters are dead which is unfortunate as this usually is a headless server machine.
I reproduced the problem on another identical hardware, so faulty hardware is (almost) ruled out. The bug is already present in 2.6.14, I did not try to trace it farther back.
dmesg from normal and failed boots and further info can be found on http://bugzilla.kernel.org/show_bug.cgi?id=5918
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Mit freundlichen Grüßen / with kind regards
Nils Rennebarth -- VarySys Technologies GmbH & Co. KG Moenchhaldenstraße 28 70191 Stuttgart Germany Tel +49 711 2501198 Fax +49 711 2501197 mailto:Nils.Rennebarth@packetalarm.com http://www.packetalarm.com
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