lkml.org 
[lkml]   [2004]   [Oct]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Page Allocation Failures Return With 2.6.9+TSO patch.
Justin Piszcz wrote:
> It does not seem like they do, but they cannot be good...
>

It seems almost inevitable that they'll happen, especially if a module
is loaded after boot (this is actually somewhere that incremental min
will help "echo some number > /proc/sys/vm/lower_zone_protection").

But from the code, the failures really won't hurt at all. It might
double the number of interrupts coming from your soundcard, but I
dare say you would never be able to notice a difference.

> I have applied the following patches
>
> 1] TSO patch
> 2] rollup.patch
>
> Rebooting now and will alert the list if/when I receive more page
> allocation failures.
>
> FYI - I started getting these with 2.6.9.
>
> (However, it was always possible on the Dell Optiplex GX1 to create page
> allocation failure with: ifconfig eth0 mtu 9000), however, on a
> higher-end machine (2.6GHZ, 2GB ram, etc) ifconfig eth0 mtu 9000 worked
> fine.
>
> Is it something with the architecture of the box bus/box?
>

No, probably just different configurations or memory usage patterns
of the kernel, maybe different drivers, etc.

> Why does it tend to affect one machine and not the other?
>

Again, luck of the draw mainly. My patch should definitely help the
TSO allocation failures (it probably won't fix the sound buffer alloc
failure though, now that I've looked at it).
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:07    [W:0.032 / U:0.256 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site