Satheesh Rajendran <[email protected]> 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: [email protected] > Cc: Thiago Jung Bauermann <[email protected]> > Cc: Ram Pai <[email protected]> > Cc: Sukadev Bhattiprolu <[email protected]> > Cc: Laurent Dufour <[email protected]> > Signed-off-by: Satheesh Rajendran <[email protected]> > --- > 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 <[email protected]> -- Thiago Jung Bauermann IBM Linux Technology Center
