Re: [Bug #13319] Page allocation failures with b43 and p54usb

Pekka Enberg
2009-05-18T06:32:18Z

Hi Andrew,

On Sat, 16 May 2009 21:20:45 +0200 (CEST) "Rafael J. Wysocki"
<rjw@sisk.pl> wrote:
>> This message has been generated automatically as a part of a report
>> of recent regressions.
>>
>> The following bug entry is on the current list of known regressions
>> from 2.6.29.  Please verify if it still should be listed and let me know
>> (either way).
>>
>>
>> Bug-Entry     : http://bugzilla.kernel.org/show_bug.cgi?id=13319
>> Subject               : Page allocation failures with b43 and p54usb
>> Submitter     : Larry Finger <Larry.Finger@lwfinger.net>
>> Date          : 2009-04-29 21:01 (18 days old)
>> References    : http://marc.info/?l=linux-kernel&m=124103897101088&w=4
>> Handled-By    : Johannes Berg <johannes@sipsolutions.net>

On Sun, May 17, 2009 at 2:36 AM, Andrew Morton
<akpm@linux-foundation.org> wrote:
> Well..  order-1 GFP_ATOMIC allocations are unreliable.  The networking
> code should hanlde the situation and recover.  I assume that is
> happening in this case?
>
> Perhaps we did something in that code after 2.6.29 which increased the
> frequency of the order-1 allocation attempts?  Maybe earlier kernels
> used order-0 all the time?  Those are much more reliable.

I wonder if this is related:

http://bugzilla.kernel.org/show_bug.cgi?id=13069

Both point to post 2.6.29... Hmm.