| To: | Jeff Garzik <jgarzik@xxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Fwd: Re: possible bug x86 2.4.2 SMP in IP receive stack] |
| From: | Jes Sorensen <jes@xxxxxxxxxxxxx> |
| Date: | 06 Mar 2001 02:07:10 +0100 |
| Cc: | Bob Felderman <feldy@xxxxxxxx>, andrewm@xxxxxxxxxx, kuznet@xxxxxxxxxxxxx, netdev@xxxxxxxxxxx |
| In-reply-to: | Jeff Garzik's message of "Mon, 05 Mar 2001 19:12:43 -0500" |
| References: | <200103060000.QAA21285@xxxxxxxxxxxxxxxx> <3AA42B7B.7C562799@xxxxxxxxxxxxxxxx> |
| Sender: | owner-netdev@xxxxxxxxxxx |
| User-agent: | Gnus/5.070096 (Pterodactyl Gnus v0.96) Emacs/20.4 |
>>>>> "Jeff" == Jeff Garzik <jgarzik@xxxxxxxxxxxxxxxx> writes: Jeff> * spin_lock around your Tx interrupt handling path. * Jeff> spin_lock_irq around your dev->hard_start_xmit Tx submission Jeff> code. You don't need locks around this if the hardware is sane. Jeff> Ideally your Rx interrupt handling path is independent of other Jeff> code, and need not be locked. Anyway you only need the locks if two parts of the code can be invoked simultanously. Jes |
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