S905x (VIM) ramdon crashes, maybe due to display driver.

S905x (VIM) ramdon crashes, maybe due to display driver.

[zhangn1985]

hi,

I observed VIM ramdon crashes from 5.7 kernel with WIP patches[1] from this mail list. 

I have tried to find better power supply,  remove case,   install cooling fun, disable Xserver. VIM still ramdon crashes.

Thus I think this maybe VIM is broken, maybe due to thermal.

I don't have a chance to get the log, even no log print to console, when crash happens.

these days, I made it an arm64 build server, without connect a HDMI display. it runs very well, build kernel 3 days without any crash.

from the phenomenon I think some hidden issues may in display driver.


[1]: https://github.com/zhangn1985/linux/commits/master/debian/patches/khadas

BR.

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Re: S905x (VIM) ramdon crashes, maybe due to display driver.

[Neil Armstrong]

Hi,

On 05/10/2020 14:42, zhangn1985@outlook.com wrote:
> hi,
> 
> I observed VIM ramdon crashes from 5.7 kernel with WIP patches[1] from this mail list. 
> 
> I have tried to find better power supply,  remove case,   install cooling fun, disable Xserver. VIM still ramdon crashes.
> 
> Thus I think this maybe VIM is broken, maybe due to thermal.
> 
> I don't have a chance to get the log, even no log print to console, when crash happens.
> 
> these days, I made it an arm64 build server, without connect a HDMI display. it runs very well, build kernel 3 days without any crash.
> 
> from the phenomenon I think some hidden issues may in display driver.

Your report is extremely vague, could you be more precise about which patch causes the issue ?
Does it still occur on more recent stable kernels ?
Please catch the crash on the console, otherwise we couldn't help...

Neil

> 
> 
> [1]: https://github.com/zhangn1985/linux/commits/master/debian/patches/khadas
> 
> BR.
> 
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> linux-amlogic mailing list
> linux-amlogic@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-amlogic
> 


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回复: S905x (VIM) ramdon crashes, maybe due to display driver.

[张 宁]

@Oleg

I build it on VIM, natively build kernel, code in NFS, about 12MB/s access bindwidth, using WIFI, and on board 100Mbps ethernet even slower. 
 
And I use debian’s kernel build scripts to build, fully build binary-arch target will take about 18h, mostly due to network, because thermal is about 40, with fun.

may be use usb storage will be faster.

@Neil
after review the patches I applied to 5.9-rc7, no display related patches.  and 5.9-rc7 still has this issue.

I understand report issue this way which is no help for debug.
I will try to narrow down to find out the patches between 5.6~5.7,  use chroot-arm64-with-qemu on powerful x86_64 build server, this will take 6h on i7-4770K, with local code storage, for 1 build.

BR.
Ning.

 



发件人: Oleg <balbes-150@yandex.ru>
发送时间: 2020年10月5日 13:06
收件人: zhangn1985@outlook.com <zhangn1985@outlook.com>
主题: Re: S905x (VIM) ramdon crashes, maybe due to display driver. 
 
Hi
Did I understand correctly that it takes 3 days to build the kernel directly on the device itself (ARM)?????


hi,

I observed VIM ramdon crashes from 5.7 kernel with WIP patches[1] from this mail list. 

I have tried to find better power supply,  remove case,   install cooling fun, disable Xserver. VIM still ramdon crashes.

Thus I think this maybe VIM is broken, maybe due to thermal.

I don't have a chance to get the log, even no log print to console, when crash happens.

these days, I made it an arm64 build server, without connect a HDMI display. it runs very well, build kernel 3 days without any crash.

from the phenomenon I think some hidden issues may in display driver.


[1]: https://github.com/zhangn1985/linux/commits/master/debian/patches/khadas

BR.

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