From 32eab6c9e15ad9856b74f655062caf61e2ee3995 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Fri, 30 Sep 2016 20:39:51 +1000 Subject: powerpc/configs: Bump kernel ring buffer size on 64 bit configs When we issue a system reset, every CPU in the box prints an Oops, including a backtrace. Each of these can be quite large (over 4kB) and we may end up wrapping the ring buffer and losing important information. Bump the base size from 128kB to 256kB and the per CPU size from 4kB to 8kB. Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman --- arch/powerpc/configs/powernv_defconfig | 2 ++ arch/powerpc/configs/ppc64_defconfig | 2 ++ arch/powerpc/configs/pseries_defconfig | 2 ++ 3 files changed, 6 insertions(+) (limited to 'arch/powerpc') diff --git a/arch/powerpc/configs/powernv_defconfig b/arch/powerpc/configs/powernv_defconfig index 3f6226b..95b52b4 100644 --- a/arch/powerpc/configs/powernv_defconfig +++ b/arch/powerpc/configs/powernv_defconfig @@ -15,6 +15,8 @@ CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y +CONFIG_LOG_BUF_SHIFT=18 +CONFIG_LOG_CPU_MAX_BUF_SHIFT=13 CONFIG_NUMA_BALANCING=y CONFIG_CGROUPS=y CONFIG_MEMCG=y diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig index 861471d..886b237 100644 --- a/arch/powerpc/configs/ppc64_defconfig +++ b/arch/powerpc/configs/ppc64_defconfig @@ -10,6 +10,8 @@ CONFIG_TASKSTATS=y CONFIG_TASK_DELAY_ACCT=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y +CONFIG_LOG_BUF_SHIFT=18 +CONFIG_LOG_CPU_MAX_BUF_SHIFT=13 CONFIG_CGROUPS=y CONFIG_CPUSETS=y CONFIG_BLK_DEV_INITRD=y diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig index 670b8d5..2a5dac7 100644 --- a/arch/powerpc/configs/pseries_defconfig +++ b/arch/powerpc/configs/pseries_defconfig @@ -15,6 +15,8 @@ CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y +CONFIG_LOG_BUF_SHIFT=18 +CONFIG_LOG_CPU_MAX_BUF_SHIFT=13 CONFIG_NUMA_BALANCING=y CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y CONFIG_CGROUPS=y -- cgit v1.1