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

From: "张 宁" <zhangn1985@outlook.com>
To: Oleg <balbes-150@yandex.ru>,
	"linux-amlogic@lists.infradead.org"
	<linux-amlogic@lists.infradead.org>
Subject: 回复: S905x (VIM) ramdon crashes, maybe due to display driver.
Date: Mon, 5 Oct 2020 13:45:10 +0000	[thread overview]
Message-ID: <SYCPR01MB3776EFAD4209225E2F4FBE31CD0C0@SYCPR01MB3776.ausprd01.prod.outlook.com> (raw)
In-Reply-To: <6d14a14f-d212-d2b3-794d-b52c60a68c0c@yandex.ru>

@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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