i.MX6SLL kernel panic after turn off SMP when reboot

cancel
Showing results for 
Search instead for 
Did you mean: 

i.MX6SLL kernel panic after turn off SMP when reboot

Jump to solution
167 Views
m_c
Senior Contributor I

Kernel 4.1.15

Customer try to decrease the kernel size by remove some configuration and found kernel panic after remove CONFIG_SMP when reboot.

kernel configuration with CONFIG_SMP (imx6sll_deconfig_SMP=y.txt)

kernel configuration without CONFIG_SMP (imx6sll_deconfig_SMP=n.txt)

kernel configuration diff (imx6sll_config_SMP.diff / config_diff.png)

start_reboot_start_log.txt

pastedImage_2.png

kill_crash_dmesg.txt 

pastedImage_3.png

Labels (1)
0 Kudos
1 Solution
57 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi m.c.

standard way described in nxp documentation is to use

command-line option of 'nosmp' or 'maxcpus=0' will disable SMP.

For issues with kernel configurations (as this is general linux issue)

suggest post question on kernel mail list

Majordomo Lists at VGER.KERNEL.ORG 

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

View solution in original post

0 Kudos
1 Reply
58 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi m.c.

standard way described in nxp documentation is to use

command-line option of 'nosmp' or 'maxcpus=0' will disable SMP.

For issues with kernel configurations (as this is general linux issue)

suggest post question on kernel mail list

Majordomo Lists at VGER.KERNEL.ORG 

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

View solution in original post

0 Kudos