Re: [PATCH] Fix possible race with 4level-fixup.h

Benjamin Herrenschmidt wrote: Index: linux-work/include/asm-generic/4level-fixup.h === --- linux-work.orig/include/asm-generic/4level-fixup.h 2005-01-24 17:09:49.0 +1100 +++ linux-work/include/asm-generic/4level-fixup.h

Re: [PATCH] Fix possible race with 4level-fixup.h

On Thu, 2005-02-17 at 19:33 +1100, Nick Piggin wrote: > Benjamin Herrenschmidt wrote: > > Hi ! > > > > When using 4level-fixup.h, a PMD page may end up beeing freed before the > > matching PGD entry is cleared due to the way the compatibility macros > > work. This can cause nasty races on some arc

Re: [PATCH] Fix possible race with 4level-fixup.h

Benjamin Herrenschmidt wrote: Hi ! When using 4level-fixup.h, a PMD page may end up beeing freed before the matching PGD entry is cleared due to the way the compatibility macros work. This can cause nasty races on some architectures. This patch fixes it by defining pud_clear() to be pgd_clear(). Th

[PATCH] Fix possible race with 4level-fixup.h

Hi ! When using 4level-fixup.h, a PMD page may end up beeing freed before the matching PGD entry is cleared due to the way the compatibility macros work. This can cause nasty races on some architectures. This patch fixes it by defining pud_clear() to be pgd_clear(). That means we'll actually writ