[Buildroot] Issue with host-erlang-rebar causing timeouts
Arnout Vandecappelle
arnout at mind.be
Wed May 27 21:18:11 UTC 2015
On 05/21/15 22:04, Thomas Petazzoni wrote:
> Johan,
>
> On Thu, 21 May 2015 21:47:26 +0200, Thomas Petazzoni wrote:
>
>> Maybe I should set up a cronjob that checks every minute if we are in
>> this situation, and send me an e-mail, so that maybe I can catch the
>> situation while it's happening, and see a bit more what's going on. I
>> don't really have better ideas :/
>
> Turns out that right after sending this e-mail, I checked, and one of
> the build was stuck exactly in this situation. The process tree is like
> this:
>
> 23332 pts/5 S+ 0:01 | \_ python ../buildroot-test/scripts/autobuild-run -c autobuild-run.conf
> 23969 pts/5 S 0:00 | | \_ timeout 28800 make O=/ssd1/thomas/autobuild/instance-2/output -C instance-2/buildroot BR2_DL_DIR=/ssd1/thomas/autobuild/instance-2/dl BR2_JLEVE
> 23970 pts/5 T 0:19 | | \_ make O=/ssd1/thomas/autobuild/instance-2/output -C instance-2/buildroot BR2_DL_DIR=/ssd1/thomas/autobuild/instance-2/dl BR2_JLEVEL=4
^
This means that the 'make' instance either got a SIGSTOP or ptrace(). Is there
some administrative process running on that machine that is doing something
funky with it? Or is it the autobuild-run script that is sending some signal?
> 10928 pts/5 Z 0:00 | | \_ [bash] <defunct>
>
> So basically, the Buildroot "make" invocation only has one child
> process: a bash process that is defunct. This instance is really stuck
> in the ./bootstrap call:
No it's not, bootstrap is finished already, but the stopped make hasn't reaped
it yet. Actually, even the make has finished already...
>
> make[1]: Entering directory '/ssd1/thomas/autobuild/instance-2/output/build/host-erlang-rebar-2.5.1'
> ./bootstrap
> [nothing else]
...but somehow the output of that finished make has not yet ended up in the log
file...
Mysterious...
>
> I tried running the exact make command that builds host-erlang-rebar in
> a terminal, inside the build directory of this build, and it worked
> perfectly fine. So even more puzzled.
Have you tried running it within the timeout? Maybe that one is doing SIGSTOP
or ptrace() for some reason...
Regards,
Arnout
>
> I see however that 'bootstrap' tries to play with the hg and git VCS to
> get a commit reference. Maybe this is failing for some reason?
>
> Any other idea?
>
> Thomas
>
--
Arnout Vandecappelle arnout at mind be
Senior Embedded Software Architect +32-16-286500
Essensium/Mind http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
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