kernel virtual memory access (from app) does not generatesegfault
Russell King - ARM Linux
linux at arm.linux.org.uk
Wed Apr 21 15:36:53 EDT 2010
On Wed, Apr 21, 2010 at 08:43:17PM +0800, anfei wrote:
> On Wed, Apr 21, 2010 at 12:17:41PM +0100, Dave P. Martin wrote:
> > Note that my observations were on an armv7 kernel. Should we still hit the
> > same bit of code in this case, or have I misdiagnosed the problem?
> You said your kernel is .28, so it seems too old and this commit may fix
> commit d25ef8b86e6a58f5476bf6e4a8da730b335f68fa
> ARM: 5728/1: Proper prefetch abort handling on ARMv6 and ARMv7
Indeed, yes. However, I think the fix is still value for older CPUs.
More information about the linux-arm-kernel