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Starting kernel ... using 4 seconds to start unpress kernel

Question asked by jiu jin hong on Jan 2, 2018
Latest reply on Jan 11, 2018 by jiu jin hong

Hi,

 

The issue is that 4.1.15 BSP starting kernel ... using 4 seconds to start to Uncompressing Linux. After enable EARLY_PRINTK, it will hang in below case.

 

20180102_14:49:26]
20180102_14:49:26]Starting kernel ...
20180102_14:49:26]
20180102_14:49:26]Uncompressing Linux... done, booting the kernel.
20180102_14:49:26]Booting Linux on physical CPU 0x0
20180102_14:49:26]Initializing cgroup subsys cpu
20180102_14:49:26]Initializing cgroup subsys cpuacct
20180102_14:49:26]Linux version 4.1.15 (jiujin@jiujin-linux) (gcc version 4.9 20150123 (prerelease) (GCC) ) #114 SMP PREEMPT Tue Jan 2 14:13:17 CST 2018
20180102_14:49:26]CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d
20180102_14:49:26]CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
20180102_14:49:26]Machine model: Freescale i.MX6 Quad SABRE Smart Device Board
20180102_14:49:26][    0.000000] Booting Linux on physical CPU 0x0
20180102_14:49:26][    0.000000] Initializing cgroup subsys cpu
20180102_14:49:26][    0.000000] Initializing cgroup subsys cpuacct
20180102_14:49:26][    0.000000] Linux version 4.1.15 (jiujin@jiujin-linux) (gcc version 4.9 20150123 (prerelease) (GCC) ) #114 SMP PREEMPT Tue Jan 2 14:13:17 CST 2018
20180102_14:49:26][    0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d
20180102_14:49:27][    0.000000] CPU: PIPT / VIPT no

---> enable EARLY_PRINTK support, hangs here.

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