Wind River Support Network


LIN6-6652 : [WRLinux 5.0.1 Async][fsl_t4xxx ] the serial node order get changed for kexec and kdump kernel

Created: Feb 11, 2014    Updated: Dec 3, 2018
Resolved Date: Feb 11, 2014
Previous ID: LIN5-17963
Found In Version: 6.0
Fix Version:
Severity: Standard
Applicable for: Wind River Linux 6
Component/s: BSP - Async


There are four serial node for t4240qds, When I boot up kernel via u-boot, The order which the kernel found the four serial node is jusk like the following. 
serial@11c500 ---->ttyS0
serial@11c600 ---->ttyS1
serial@11d500 ---->ttyS2
serial@11d600 ---->ttyS3
but when I was booting kernel via kexec, the order is changed.
serial@11d600 ---->ttyS0
serial@11c500 ---->ttyS1
serial@11c600 ---->ttyS2
serial@11d500 ---->ttyS3



Steps to Reproduce

1) Configure project
2) kexec -l vmlinux --append="`cat /proc/cmdline`" or kexec -p vmlinux ...
3) kexec -e or echo c >/proc/sysrq-trigger

Other Downloads

Live chat