Re: futex wait failure

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Dec 29, 2009 at 8:47 AM, Helge Deller <deller@xxxxxx> wrote:
>> 2) Change return space register to sr7.  sr3 is not set correctly
>> if the entry number is invalid.
>
> Yep.
>
>> Have nasty suspicion that sr3 is getting hit...

Is the thought here that we take an interrupt, and sr3 is not
guaranteed saved/restored, while sr7 is guaranteed?

I don't see anything wrong with moving the gate earlier (unless
someone can come up with a case where an LWS may not want to gate).

It has the benefit of making the fast path 1 instruction shorter,
however I don't see that it makes the implementation more correct.

Cheers,
Carlos.
--
To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux SoC]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux