Satheesh Rajendran <sathn...@linux.vnet.ibm.com> writes:
> Early secure guest boot hits the below crash while booting with
> vcpus numbers aligned with page boundary for PAGE size of 64k
> and LPPACA size of 1k i.e 64, 128 etc, due to the BUG_ON assert
> for shared_lppaca_total_size equal to shared_lppaca_size,
>
> [ 0.000000] Partition configured for 64 cpus.
> [ 0.000000] CPU maps initialized for 1 thread per core
> [ 0.000000] ------------[ cut here ]------------
> [ 0.000000] kernel BUG at arch/powerpc/kernel/paca.c:89!
> [ 0.000000] Oops: Exception in kernel mode, sig: 5 [#1]
> [ 0.000000] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries
>
> which is not necessary, let's remove it.
>
> Cc: linux-ker...@vger.kernel.org
> Cc: Thiago Jung Bauermann <bauer...@linux.ibm.com>
> Cc: Ram Pai <linux...@us.ibm.com>
> Cc: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com>
> Cc: Laurent Dufour <lduf...@linux.ibm.com>
> Signed-off-by: Satheesh Rajendran <sathn...@linux.vnet.ibm.com>
> ---
> arch/powerpc/kernel/paca.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Thanks for fixing this bug! I would only add:
Fixes: bd104e6db6f0 ("powerpc/pseries/svm: Use shared memory for LPPACA
structures")
In any case:
Reviewed-by: Thiago Jung Bauermann <bauer...@linux.ibm.com>
--
Thiago Jung Bauermann
IBM Linux Technology Center
