On Tue, Jul 01, 2014 at 02:09:58PM +0800, Yijing Wang wrote: > From: Madhavan Srinivasan <maddy@xxxxxxxxxxxxxxxxxx> > > arch/powerpc/kernel/sysfs.c exports PURR with write permission. > This may be valid for kernel in phyp mode. But writing to > the file in guest mode causes crash due to a priviledge violation > > Signed-off-by: Madhavan Srinivasan <maddy@xxxxxxxxxxxxxxxxxx> > Signed-off-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> > [Backported to 3.4: adjust context] > Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx> > --- > arch/powerpc/kernel/sysfs.c | 18 ++++++++++++++++-- > 1 files changed, 16 insertions(+), 2 deletions(-) You forgot the git commit id here :( It is d1211af3049f4c9c1d8d4eb8f8098cc4f4f0d0c7, right? -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html