Subject: Re: next/master boot: 265 boots: 17 failed, 184 passed with 64 offline (next-20190730)

From: Neil Armstrong <[email-masked]>
Date: Fri, 2 Aug 2019 15:03:57 +0200

Hi Mark,

On 30/07/2019 14:34, Mark Brown wrote:
> On Tue, Jul 30, 2019 at 05:17:56AM -0700, kernelci.org bot wrote:
> 
>> Boot Failures Detected:
>>
>> arm:
>>     oxnas_v6_defconfig:
>>         gcc-8:
>>             ox820-cloudengines-pogoplug-series-3: 1 failed lab
> 
> For some time now -next and mainline have been failing to boot on
> Pogoplug 3 with the oxnas_v6_defconfig, the kernel seems to start fine
> but fails to parse the ramdisk it's passed:
> 
> 08:50:02.086589  <6>[    7.719854] IP-Config: Complete:
> 08:50:02.087213  <6>[    7.723330]      device=eth0, hwaddr=0a:a2:89:27:10:1b, ipaddr=10.201.4.144, mask=255.255.0.0, gw=10.201.0.1
> 08:50:02.087413  <6>[    7.733409]      host=10.201.4.144, domain=, nis-domain=(none)
> 08:50:02.088056  <6>[    7.739499]      bootserver=10.201.1.1, rootserver=10.201.1.1, rootpath=
> 08:50:02.088248  <6>[    7.739504]      nameserver0=10.201.1.1
> 08:50:02.129966  <5>[    7.752025] RAMDISK: Couldn't find valid RAM disk image starting at 0.
> 08:50:02.130381  <4>[    7.759616] List of all partitions:
> 08:50:02.131333  <4>[    7.763363] 0100           65536 ram0 
> 
> Possibly an issue with the ramdisk getting overwritten or something?

Thanks for reporting, it's my suspicion since my multiple bisect runs all point to
this merge commit :
a318423b61e8 Merge tag 'upstream-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs

This merge doesn't introduce notable changes for the oxnas_v6_defconfig, but disabling UBI entirely makes
it work again.

Continuing my investigations...

Neil

> 
> Full details for today's -next can be seen here:
> 
> 	https://kernelci.org/boot/id/5d4004bb59b51489d631b28d/
>