UML kernel panic on initialization

[Richard Weinberger]

----- Ursprüngliche Mail -----
> Von: "YiFei Zhu" <zhuyifei1999 at gmail.com>
> An: "subashab" <subashab at codeaurora.org>
> CC: "Johannes Berg" <johannes at sipsolutions.net>, "richard" <richard at nod.at>, "anton ivanov"
> <anton.ivanov at cambridgegreys.com>, "Jeff Dike" <jdike at addtoit.com>, "linux-um" <linux-um at lists.infradead.org>,
> "stranche" <stranche at codeaurora.org>
> Gesendet: Dienstag, 13. Juli 2021 22:52:43
> Betreff: Re: UML kernel panic on initialization

> On Tue, Jul 13, 2021 at 3:00 PM <subashab at codeaurora.org> wrote:
>>
>> > Wasn't compatible with my system ... can you describe the host system?
>> >
>> > johannes
>>
>> Its an Intel 8th gen i7 with Ubuntu 16.04 LTS.
>> Kernel version is 4.15.0-70-generic.
>> gcc version is 5.4.
> 
> FWIW, for me, compiling UML with defconfig inside a Ubuntu 16.04
> docker is enough to produce a binary that could trigger a crash even
> outside docker, using hostfs root mount (so no special ld.so).
> 
> This is some sort of compiler difference.

Exactly. :-)
Please see Johannes' patch:
http://lists.infradead.org/pipermail/linux-um/2021-July/001571.html

Thanks,
//richard