On Tue, Oct 15, 2019 at 10:12 AM Tiezhu Yang <yangtie...@loongson.cn> wrote: > > When I update kernel with loongson3_defconfig based on the Loongson 3A3000 > platform, then using dmesg command to show kernel ring buffer, the initial > kernel messages have disappeared due to the log buffer is too small, it is > better to change the default kernel log buffer size from 16KB to 128KB. > > Signed-off-by: Tiezhu Yang <yangtie...@loongson.cn> > --- > arch/mips/configs/loongson3_defconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/mips/configs/loongson3_defconfig > b/arch/mips/configs/loongson3_defconfig > index 90ee008..3aa2201 100644 > --- a/arch/mips/configs/loongson3_defconfig > +++ b/arch/mips/configs/loongson3_defconfig > @@ -12,7 +12,7 @@ CONFIG_TASKSTATS=y > CONFIG_TASK_DELAY_ACCT=y > CONFIG_TASK_XACCT=y > CONFIG_TASK_IO_ACCOUNTING=y > -CONFIG_LOG_BUF_SHIFT=14 > +CONFIG_LOG_BUF_SHIFT=17 Hi, Tiezhu,
Why you choose 128KB but not 64KB or 256KB? I found 64KB is enough for our cases. And if you really need more, I think 256KB could be better because there are many platforms choose 256KB. Huacai > CONFIG_MEMCG=y > CONFIG_MEMCG_SWAP=y > CONFIG_BLK_CGROUP=y > -- > 2.1.0 > >
