Messages in this thread | | | Date | Thu, 23 Mar 2017 16:13:10 +0530 | From | afzal mohammed <> | Subject | Re: [PATCH] ARM: nommu: access ID_PFR1 only if CPUID scheme |
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Hi,
On Fri, Mar 17, 2017 at 10:10:34PM +0530, afzal mohammed wrote: > Greg upon trying to boot no-MMU Kernel on ARM926EJ reported boot > failure. He root caused it to ID_PFR1 access introduced by the > commit mentioned in the fixes tag below. > > All CP15 processors need not have processor feature registers, only > for architectures defined by CPUID scheme would have it. Hence check > for it before accessing processor feature register, ID_PFR1. > > Fixes: f8300a0b5de0 ("ARM: 8647/2: nommu: dynamic exception base address setting") > Reported-by: Greg Ungerer <gerg@uclinux.org> > Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
Greg, can i add your Tested-by ?
Regards afzal
> --- > > Hi Russell, > > It would be good to have the fix go in during -rc, as, > > 1. Culprit commit went in during the last merge window > 2. Though nothing supported in mainline is known to be broken, the > original change needs to be modified to be reliable
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