[VA][TX1] How to dump Linux kernel panic call stack.

precondition:
BSP r24.1.0 + dtb of Local build R24.2.1 + Customed carriy board.

Operational:
Boot the system and meet the kernel panic.

Problem:
The panic log have just two lines, there is no call stack in the Uart log.

How to enable the function for dumping call stack.

thanks.

[    3.091492] TCP: reno registered
[    3.094591] UDP hash table entries: 2048 (order: 4, 65536 bytes)
[    3.100626] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes)
[    3.107371] NET: Registered protocol family 1
[    3.111782] RPC: Registered named UNIX socket transport module.
[    3.117207] RPC: Registered udp transport module.
[    3.121905] RPC: Registered tcp transport module.
[    3.126563] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    3.133497] tegra-fuse tegra-fuse: Fuse driver initialized succesfully
[    3.145786] host1x host1x: initialized
11:13:24.241 [    3.153062] NTFS driver 2.1.30 [Flags: R/O].
[    3.155450] fuse init (API version 7.22)
[    3.159484] msgmni has been set to 7704
[    3.164601] io scheduler noop registered (default)
[    3.168049] Tegra cpuquiet initialized: disabled
[    3.175139] tegra-pcie 1003000.pcie-controller: PCIE: Enable power rails
11:13:25.275 [    4.210622] Internal error: : 8a000000 [#1] PREEMPT SMP
[    3.181683] Unable to handle kernel paging request at virtual address c998ffffffc0ff82

Normally there would be a stack trace…it looks like it locked up before being able to do so. If you were using a serial console you might see more…no disk write is involved, it may survive and dump. For serial console see:
http://elinux.org/Jetson/TX1_Serial_Console

This could be quite far from what’s actually happening, but might also be the same issue:
https://knowledge.windriver.com/en-us/000_Products/000/010/000/030/000_LIN7-6377_%3A_Cannot_execute_statically_linked_32-bit_binary_on_arm64

Is any of this compiled as 32-bit armhf instead of arm64/aarch64?

hi Linuxdev:

This problem I don’t meet, just right now.
I had used the BSP r24.1.0 and rootfs , they don’t match the r24.2.1 dtbs.

If the stack trace will be shown Normally, it is ok for me.
Still very grateful,Thanks.

Qiang zuo.