[Buildroot] random segmentation fault during built

Bin Meng bmeng.cn at gmail.com
Sun Jan 17 15:30:51 UTC 2021


Hi Peter,

On Tue, Jan 12, 2021 at 3:30 AM Peter Seiderer <ps.report at gmx.net> wrote:
>
> Hello Bin,
>
> On Mon, 11 Jan 2021 09:11:48 +0800, Bin Meng <bmeng.cn at gmail.com> wrote:
>
> > 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.
>
> Back to the first question: random packages/locations or always at the same (or
> similar) location? Always some python (related) package?

Looks it's random, not always some Python packages. For example, I saw
this today:

make[3]: *** [Makefile:1826: install-pkgconfDATA] Segmentation fault
make[3]: *** Waiting for unfinished jobs....

>
> Which buildroot version? Mind to share your .config file?

The current buildroot HEAD with commit
6d4f1324d4a4a23938e40cc12a033a3a264b4ec1, plus my patch:
http://patchwork.ozlabs.org/project/buildroot/patch/1610355672-3008-3-git-send-email-bmeng.cn@gmail.com/

.config file attached

>
> Mind to enable core-dump ('ulimit -c unlimited') and take a look at the core
> file?
>

Sorry I did not enable core dump. I will have to turn it on now.

Regards,
Bin
-------------- next part --------------
A non-text attachment was scrubbed...
Name: config.zip
Type: application/x-zip-compressed
Size: 19769 bytes
Desc: not available
URL: <http://lists.busybox.net/pipermail/buildroot/attachments/20210117/0adb5827/attachment.bin>


More information about the buildroot mailing list