[Buildroot] random segmentation fault during built

[Bin Meng]

Hi Peter,

On Mon, Jan 11, 2021 at 12:04 AM Peter Seiderer <ps.report at gmx.net> wrote:
>
> Hello Bin,
>
> On Sun, 10 Jan 2021 21:57:45 +0800, Bin Meng <bmeng.cn at gmail.com> wrote:
>
> > Hi,
> >
> > I see a random segmentation fault during the build of buildroot. For example,
> >
> > Makefile:13408: recipe for target 'install-pylibmountexecPYTHON' failed
> > make[4]: *** [install-pylibmountexecPYTHON] Segmentation fault (core dumped)
> > make[4]: *** Waiting for unfinished jobs....
> >
> > Type "make" for the 2nd time with nothing changed, or rarely a 3rd
> > time, get a PASS build.
> >
> > This was observed by builds on Ubuntu 16.04 and Ubuntu 20.04 hosts.
> > Any ideas of what could be wrong?
>
> In case the errors are at random packages/locations (and succeed on iteration)
> check your hardware and/or memory, see e.g. [1]...
>
> Early versions of the AMD Ryzen CPU had heavy-load segfault bug, see [2]...
>
> Regards,
> Peter
>
> [1] https://tldp.org/FAQ/sig11/html/index.html
> [2] https://techreport.com/news/32459/amd-ships-revised-ryzen-cpus-with-a-compile-bug-fix/

Thank you. I checked the above 2 links and suspect it's not related.

The issue happens on one Intel Xeon CPU with a Ubuntu 16.04 and one
Intel CORE i9 with a Ubuntu 20.04. The segmentation fault seems to
happen randomly during package "make install" phase.

Regards,
Bin