Messages in this thread |  | | Subject | Re: Kernel BUG at page_alloc.c:91! (2.4.19) | From | "Heiko Carstens" <> | Date | Mon, 2 Sep 2002 14:54:47 +0200 |
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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
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