Attachment 311865 Details for Bug 455491 – Patch that fixes this problem.

[patch] Patch that fixes this problem.

rhel5u3-vmalloc_fault.patch (text/plain), 1.02 KB, created by Larry Woodman on 2008-07-15 18:40:27 UTC

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Creator: Larry Woodman

Created: 2008-07-15 18:40:27 UTC

Size: 1.02 KB

patch

obsolete

>--- linux-2.6.18.noarch/arch/i386/mm/fault.c.orig	2008-07-15 14:25:30.000000000 -0400
>+++ linux-2.6.18.noarch/arch/i386/mm/fault.c	2008-07-15 14:25:35.000000000 -0400
>@@ -296,6 +296,11 @@ static inline int vmalloc_fault(unsigned
> 	unsigned long pgd_paddr;
> 	pmd_t *pmd_k;
> 	pte_t *pte_k;
>+
>+	/* Make sure we are in vmalloc area */
>+	if (!(address >= VMALLOC_START && address < VMALLOC_END))
>+		return -1;
>+
> 	/*
> 	 * Synchronize this task's top level page-table
> 	 * with the 'reference' page table.
>--- linux-2.6.18.noarch/arch/x86_64/mm/fault.c.orig	2008-07-15 14:17:17.000000000 -0400
>+++ linux-2.6.18.noarch/arch/x86_64/mm/fault.c	2008-07-15 14:26:00.000000000 -0400
>@@ -288,6 +288,10 @@ static int vmalloc_fault(unsigned long a
> 	pmd_t *pmd, *pmd_ref;
> 	pte_t *pte, *pte_ref;
> 
>+	/* Make sure we are in vmalloc area */
>+	if (!(address >= VMALLOC_START && address < VMALLOC_END))
>+		return -1;
>+
> 	/* Copy kernel mappings over when needed. This can also
> 	   happen within a race in page table update. In the later
> 	   case just flush. */

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Attachments on bug 455491: 311865