Re: [BUG] vmalloc_area_pages() in 2.4.2-ac25

From: Andrew Morton (andrewm@uow.edu.au)
Date: Mon Mar 26 2001 - 07:23:20 EST


Tachino Nobuhiro wrote:
>
> vmalloc_area_pages() in 2.4.2-ac25 seems to be broken. It calls
> spin_lock(&init_mm.page_table_lock) twice and causes system hang.
>

Yes, it would. Delete the innermost lock and unlock.

--- linux-2.4.2-ac25/mm/vmalloc.c Mon Mar 26 21:38:38 2001
+++ ac/mm/vmalloc.c Mon Mar 26 21:52:05 2001
@@ -152,9 +152,7 @@
         do {
                 pmd_t *pmd;
                 
- spin_lock(&init_mm.page_table_lock); /* pmd_alloc requires this */
                 pmd = pmd_alloc(&init_mm, dir, address);
- spin_unlock(&init_mm.page_table_lock);
                 ret = -ENOMEM;
                 if (!pmd)
                         break;
-
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/



This archive was generated by hypermail 2b29 : Sat Mar 31 2001 - 21:00:13 EST