Messages in this thread | | | Date | Wed, 9 Dec 1998 07:35:46 +0100 (CET) | From | Andrea Arcangeli <> | Subject | Re: 2.1.131-ac3 3c509 no irq_save in the sender code |
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On Mon, 7 Dec 1998, Alan Cox wrote:
>> I don' t understand very well the meaning of `tx is single threaded >> implicitly'... > >All transmits are serialized by the dev_queue_xmit() area code. There >is a start_bh_atomic around them. Thats something that has to go for >2.3.x but for 2.2 is quite safe
Ok, but now I can' t understand why the tx can be interrupted by the rx irq handler in UP safely but not in SMP... What am I mussing here?
Andrea Arcangeli
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