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| author | Yongqin Liu <yongqin.liu@linaro.org> | 2017-03-28 22:44:07 +0800 |
|---|---|---|
| committer | Yongqin Liu <yongqin.liu@linaro.org> | 2017-03-29 08:33:38 +0800 |
| commit | db3edcac02c10817ee97944118986b76630db34c (patch) | |
| tree | c45078ce57747f035630cc40f5b1323282c8ef58 /hikey/BoardConfig.mk | |
| parent | 5e2670e4bc20998d1e690a5cf1f99ba040907de1 (diff) | |
| download | hikey-db3edcac02c10817ee97944118986b76630db34c.tar.gz | |
hikey: turn on printk.devkmsg for 4.9 kernel
With 4.9 kernel, ratelimit is default for kernel messages,
so we would not see message printed from userspace like following:
init: starting service 'surfaceflinger'...
The information like this is necessary for us to know the status of android boot
during development, so turn on printk.devkmsg from the boot parameters.
kernel documentation is here:
https://android.googlesource.com/kernel/hikey-linaro/+/android-hikey-linaro-4.9/Documentation/kernel-parameters.txt#3273
Test: manually with hikey
Change-Id: Ib0ec7a311129108a14478c707564309ae10b390d
Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>
Diffstat (limited to 'hikey/BoardConfig.mk')
| -rw-r--r-- | hikey/BoardConfig.mk | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hikey/BoardConfig.mk b/hikey/BoardConfig.mk index d10a51cd..f4529901 100644 --- a/hikey/BoardConfig.mk +++ b/hikey/BoardConfig.mk @@ -7,6 +7,10 @@ else BOARD_KERNEL_CMDLINE := console=ttyFIQ0 androidboot.console=ttyFIQ0 androidboot.hardware=hikey firmware_class.path=/system/etc/firmware efi=noruntime endif +## printk.devkmsg only has meaning for kernel 4.9 and later +## it would be ignored by kernel 4.1 and kernel 4.4 +BOARD_KERNEL_CMDLINE += printk.devkmsg=on + BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1610612736 ifeq ($(TARGET_USERDATAIMAGE_4GB), true) BOARD_USERDATAIMAGE_PARTITION_SIZE := 1595915776 |