Linus,
I just read pre3<->pre4 diff and it seems you missed this patch... here it
goes again.
In pre3/4, GFP_BUFFER allocations can eat from the "emergency" memory
reservations in case try_to_free_pages() fails for those allocations in
__alloc_pages().
Here goes the (tested) patch to fix that:
--- linux/mm/page_alloc.c.orig Thu Jun 14 11:00:14 2001
+++ linux/mm/page_alloc.c Thu Jun 14 11:32:56 2001
@@ -453,6 +453,12 @@
int progress = try_to_free_pages(gfp_mask);
if (progress || gfp_mask & __GFP_IO)
goto try_again;
+ /*
+ * Fail in case no progress was made and the
+ * allocation may not be able to block on IO.
+ */
+ else
+ return NULL;
}
}
}
-
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This archive was generated by hypermail 2b29 : Sat Jun 23 2001 - 21:00:30 EST