I using the following armbian and kernel:

 

# PLEASE DO NOT EDIT THIS FILE
BOARD=orangepizero
BOARD_NAME="Orange Pi Zero"
BOARDFAMILY=sun8i
VERSION=5.38
LINUXFAMILY=sunxi
BRANCH=next
ARCH=arm
IMAGE_TYPE=stable
BOARD_TYPE=conf
INITRD_ARCH=arm
KERNEL_IMAGE_TYPE=zImage

 

Linux 4.14.14-sunxi #1 SMP Thu Jan 25 12:20:57 CET 2018 armv7l GNU/Linux

 

My box have constant kernel dumps in the log:

 

[59763.352618] [<c010db15>] (unwind_backtrace) from [<c010a0d9>] (show_stack+0x11/0x14)
[59763.352627] [<c010a0d9>] (show_stack) from [<c0867e29>] (dump_stack+0x69/0x78)
[59763.352637] [<c0867e29>] (dump_stack) from [<c01ddb2d>] (warn_alloc+0xa1/0x120)
[59763.352646] [<c01ddb2d>] (warn_alloc) from [<c01de781>] (__alloc_pages_nodemask+0xb6d/0xc2c)
[59763.352655] [<c01de781>] (__alloc_pages_nodemask) from [<c01de96b>] (page_frag_alloc+0xd3/0xdc)
[59763.352667] [<c01de96b>] (page_frag_alloc) from [<c07714f3>] (__netdev_alloc_skb+0x77/0xbc)
[59763.352678] [<c07714f3>] (__netdev_alloc_skb) from [<c06a4dd3>] (stmmac_poll+0x597/0x6e4)
[59763.352689] [<c06a4dd3>] (stmmac_poll) from [<c0781ce5>] (net_rx_action+0x115/0x2f0)
[59763.352698] [<c0781ce5>] (net_rx_action) from [<c01014a1>] (__do_softirq+0xb9/0x25c)
[59763.352708] [<c01014a1>] (__do_softirq) from [<c011ef33>] (irq_exit+0x7f/0xc4)
[59763.352719] [<c011ef33>] (irq_exit) from [<c0159e5d>] (__handle_domain_irq+0x49/0x84)
[59763.352729] [<c0159e5d>] (__handle_domain_irq) from [<c01013b5>] (gic_handle_irq+0x39/0x68)
[59763.352738] [<c01013b5>] (gic_handle_irq) from [<c010aa25>] (__irq_svc+0x65/0x94)
[59763.352742] Exception stack(0xd9203cc0 to 0xd9203d08)
[59763.352751] 3cc0: cf0e4e00 d5adde80 da1b4090 0000000a da1b4320 d9203d98 00000020 cfef51f8
[59763.352760] 3ce0: da1b4090 c0d03f48 00000000 cfef5070 00000004 d9203d10 bfaff3e1 bfafe480
[59763.352765] 3d00: 200e0133 ffffffff
[59763.352776] [<c010aa25>] (__irq_svc) from [<bfafe480>] (SRM0+0x210/0x4a0 [aes_arm_bs])
[59763.352780] unwind: Unknown symbol address bfafe480
[59763.352783] unwind: Index not found bfafe480

 

 

Sometimes it dies with kernel panic. I don't expect much from a 10$ board so I will not complain but I would like it to reboot when there is a kernel crash.

I have put:

 

kernel.panic=3

 

It was on 10 seconds by default and it still didn't reboot.

 

Any ideas?

42 minutes ago, postifix said:

I don't expect much from a 10$ board so I will not complain but I would like it to reboot when there is a kernel crash.

 

Would solving the problem (preventing the 'kernel crash') also be an option? How do you power the board? Micro USB?

No through the GPIO, I have a dedicated 2A psu so that is not a problem.

I doing massive disk IO operation to a disk attached to it via USB that crashes it. If I don't run anything there are no kernel messages or crash and it stays up for weeks.

47 minutes ago, postifix said:

I have a dedicated 2A psu so that is not a problem.

I doing massive disk IO operation to a disk attached to it via USB that crashes it.

 

Well, amperage ratings are pretty much useless if the problem is a voltage drop under load (which is a very common problem BTW). I would try to measure voltage on the board's testpoints to check for this. And also try to rule out the other hardware issues, eg. bad DRAM: https://forum.armbian.com/topic/6667-solved-upgrade-process-is-broken-on-opz2-h5/?do=findComment&comment=50651