[yocto] Very strange issue where bitbake hangs at do_rootfs

[Chris Z.]

Hi,

Have you tried to find on which syscall it hangs ?  sysdig or strace ?

Maybe it's issue with python subprocess, documentation mention that
subprocess can deadlock or hang with large data and no read from pipe
is done.

Br,
Chris Z

On Fri, May 26, 2017 at 11:35 PM, Andrei Gherzan <andrei at gherzan.ro> wrote:
> On Fri, May 26, 2017 at 5:19 PM, Khem Raj <raj.khem at gmail.com> wrote:
>>
>> On Fri, May 26, 2017 at 5:52 AM, Andrei Gherzan <andrei at gherzan.ro> wrote:
>> > Hello all,
>> >
>> > I moved recently on a new arch linux host and everything works fine with
>> > one
>> > exception: when I build a custom distribution based on morty with many
>> > packages including kernel-modules (beaglebone), the build system hangs
>> > without any details. I hooked into package_manager.py RPM install and
>> > streamed output from `process = subprocess.Popen(cmd.split(),
>> > stderr=subprocess.STDOUT, stdout=subprocess.PIPE)` and it seems that it
>> > hangs in different places every time. Output example:
>> >
>> > ---
>> >
>> > Result of kernel-module-industrialio-sw-trigger postinst: 0
>> > debug: Processing
>> > kernel-module-lm8333-4.4.55+git0+903eb64c68-r22b at beaglebone in
>> >
>> > /work/resin/resinos/resin-beaglebone/build/tmp/work/beaglebone-poky-linux-gnueabi/resin-image/1.0-r0/rpms/beaglebone/kernel-module-lm8333-4.4.55+git0+903eb64c68-r22b.beaglebone.rpm
>> > 1428:Installing kernel-module.. ########################################
>> > [
>> > 55%]
>> > Output from kernel-module-lm8333-4.4.55+git0+903eb64c68-r22b at beaglebone:
>> > Executing kernel-module-lm8333 postinst with: /bin/sh
>> >
>> > /work/resin/resinos/resin-beaglebone/build/tmp/work/beaglebone-poky-linux-gnueabi/resin-image/1.0-r0/rootfs///oe_install/tmp/rpm-tmp.76459
>> > 1
>> >
>> > # kernel-module-lm8333 - postinst
>> > #!/bin/sh
>> > if [ -z "$D" ]; then
>> >         depmod -a 4.4.55+
>> > else
>> >         # image.bbclass will call depmodwrapper after everything is
>> > installed,
>> >         # no need to do it here as well
>> >         :
>> > fi
>> > Result of kernel-module-lm8333 postinst: 0
>> > debug: Processing
>> > kernel-module-tca8418-keypad-4.4.55+git0+903eb64c68-r22b at beaglebone in
>> >
>> > /work/resin/resinos/resin-beaglebone/build/tmp/work/beaglebone-poky-linux-gnueabi/resin-image/1.0-r0/rpms/beaglebone/kernel-module-tca8418-keypad-4.4.55+git0+903eb64c68-r22b.beaglebone.rpm
>> > 1429:Installing kernel-module.. ########################################
>> > [
>> > 55%]
>> > Output from
>> > kernel-module-tca8418-keypad-4.4.55+git0+903eb64c68-r22b at beaglebone:
>> > Executing kernel-module-tca8418-keypad postinst with: /bin/sh
>> >
>> > /work/resin/resinos/resin-beaglebone/build/tmp/work/beaglebone-poky-linux-gnueabi/resin-image/1.0-r0/rootfs///oe_install/tmp/rpm-tmp.76459
>> > 1
>> >
>> > ---
>> >
>> > If I don't install kernel-modules build succeeds.
>> >
>> > Any hints on how to debug this further? I can't seem to find anything
>> > relevant in smart output.
>> >
>>
>> yeah rolling ditros are always intesting when you want to build fixed
>> releases from past.
>> one of things that helped me in past was to pin python3 to 3.5 but a
>> clean reinstall of arch
>> I got that problem solved automagically
>
>
> Downgraded to 3.5 and didn't help sadly.
>
> Regards,
> Andrei
>
>
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