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| author | Michael Ellerman <mpe@ellerman.id.au> | 2019-01-10 12:57:37 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-01-15 01:17:10 +0100 |
| commit | 16842516ea9cb237079cb9ffcb6466ce760fc37d (patch) | |
| tree | 8da77413ad67da16c08132a72f71b8b0e6d068f2 /arch/powerpc/kernel/traps.c | |
| parent | powerpc: Show PAGE_SIZE in __die() output (diff) | |
| download | linux-16842516ea9cb237079cb9ffcb6466ce760fc37d.tar.xz linux-16842516ea9cb237079cb9ffcb6466ce760fc37d.zip | |
powerpc/64s: Add MMU type to __die() output
On Power9 machines (64-bit Book3S), we can be running with either the
Hash table or Radix tree MMU enabled. So add some text to the __die()
output to tell us which is enabled, for the case where all you have is
the oops output and no other information.
Example output:
kernel BUG at drivers/misc/lkdtm/bugs.c:63!
Oops: Exception in kernel mode, sig: 5 [#1]
LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries
Modules linked in: kvm vmx_crypto binfmt_misc ip_tables x_tables
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/traps.c')
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index a872c64618ad..5e917a84f949 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -257,9 +257,11 @@ static int __die(const char *str, struct pt_regs *regs, long err) { printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter); - printk("%s PAGE_SIZE=%luK%s%s%s%s%s %s\n", + printk("%s PAGE_SIZE=%luK%s%s%s%s%s%s%s %s\n", IS_ENABLED(CONFIG_CPU_LITTLE_ENDIAN) ? "LE" : "BE", PAGE_SIZE / 1024, + early_radix_enabled() ? " MMU=Radix" : "", + early_mmu_has_feature(MMU_FTR_HPTE_TABLE) ? " MMU=Hash" : "", IS_ENABLED(CONFIG_PREEMPT) ? " PREEMPT" : "", IS_ENABLED(CONFIG_SMP) ? " SMP" : "", IS_ENABLED(CONFIG_SMP) ? (" NR_CPUS=" __stringify(NR_CPUS)) : "", |