lkml.org 
[lkml]   [2002]   [Sep]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Kernel BUG at page_alloc.c:91! (2.4.19)
From
Date
Hi Daniel,

>> Looks to me that this function itself has a bug: after the drop_pte
label
>> it is checked if the current page has a mapping. If this is true there
is
>> ...
>Chances are, you've run into the subtle double-free race I've been
working
>on for the last few days. Would you like to try this patch as see if it
>makes a difference?
>http://nl.linux.org/~phillips/patches/lru.race-2.4.19

Thanks for the patch but unfortunately it doesn't change the behaviour at
all. This BUG is still 100% reproducible by just having 1 process which
allocates memory chunks of 256KB and after each allocation writes to each
of the pages in order to make them dirty.

regards,
Heiko

-
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 13:28    [W:0.029 / U:7.876 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site