On Sat, 13 Jan 2001, Andrew Morton wrote:
>
> 3c59x calls disable_irq() once per minute, and seems to be
> one of the most-affected drivers.
The ne2k thing seems to be the _most_ affected one, as far as I can tell.
However, it could easily be a matter of timing - for example, if the
driver does something to trigger an interrupt _just_ before (or after,
considering the asynchronous nature of writing to the IO-APIC) doing the
enable_irq(), then..
I'm also nervous about the complete lack of locking in vortex_timer():
disabling interrupts doesn't mean that transmits couldn't be
pending. But maybe the hardware is ok with changing status concurrently.
Linus
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This archive was generated by hypermail 2b29 : Mon Jan 15 2001 - 21:00:36 EST