Messages in this thread |  | | From | (Linus Torvalds) | Subject | Re: QUESTION: Network hangs with BP6 and 2.4.x kernels, hardware | Date | 12 Jan 2001 12:04:21 -0800 |
| |
In article <20010112200541.A25675@unternet.org>, Frank de Lange <frank@unternet.org> wrote: >As per Linus' suggestion, I removed the disable_irq/enable_irq statements from >the 8390 core driver, and replace the spinlocks with irq-safe versions. This >seems to solve the network hangs, as I am currently running a heavy network >load (which would have killed a non-patched driver within seconds). Network >latency seems a bit higher, and there are some hiccups in the streaming audio >(part of the network load, easy indicator of performance...), but no hangs.
Ok, so it's tentatively the IOAPIC disable/enable code. But it could obviously be something that just interacts with it, including just a timing issue (ie the _real_ bug might just be bad behaviour when changing IO-APIC state at the same time as an interrupt happens, and disable/enable-irq just happen to be the only things that do it at a high enough frequency that you can see the problem).
Remind me: what polarity are your io-apic irq's? Level, edge, sideways? Anything else that might be relevant?
Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
|  |