Re: RFC: i386: kill !4KSTACKS

[Daniel Phillips]

On Wednesday 07 September 2005 00:16, Daniel Phillips wrote:
> ...as long as ->task and ->previous_esp are initialized,
> staying on the bigger stack looks fine (previous_esp is apparently used
> only for backtrace) ... just like do_IRQ.

Ahem, but let me note before somebody else does: it isn't interrupt context, 
it is normal process context - while an interrupt can ignore most of the 
thread_info fields, a normal process has to worry about all 9.  To be on the 
safe side, the first 8 need to be copied into and out of the ndis stack, with 
preempt disabled until after the stack switch.

Regards,

Daniel
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/