[erlang-bugs] segv compiling master (freebsd-10.1 on x64)

[Felix Gallo]

Further exploration: 18.0rc1 also compiles fine on the freebsd 10.1 512M
box; 18.0rc2 fails.  So those bracket the regression.

On ubuntu linux 15.04, master builds, so apparently the issue may be
[free]bsd specific.

On Wed, Jun 3, 2015 at 1:34 PM, Felix Gallo <felixgallo@REDACTED> wrote:

> fresh git clone into a new directory, git checkout master, git clean -fxd;
>
> root@REDACTED:~/otp # uname -a
> FreeBSD sov3 10.1-RELEASE FreeBSD 10.1-RELEASE #0 r274401: Tue Nov 11
> 21:02:49 UTC 2014     root@REDACTED:/usr/obj/usr/src/sys/GENERIC
>  amd64
> root@REDACTED:~/otp # git describe
> OTP-18.0-rc2-244-g65bf43e
> root@REDACTED:~/otp # ./otp_build autoconf && ./configure && gmake
>
> [...snip...]
>
> === Entering application hipe
> gmake[3]: Entering directory '/root/otp/lib/hipe/rtl'
>  ERLC ../ebin/hipe_rtl.beam
> /root/otp/make/x86_64-unknown-freebsd10.1/otp.mk:122: recipe for target
> '../ebin/hipe_rtl.beam' failed
> gmake[3]: *** [../ebin/hipe_rtl.beam] Segmentation fault (core dumped)
>
> Hm.
>
> After further exploration -- creating two entirely new freebsd 10.1
> servers, one with 8G RAM and one, like sov3, with only 512M RAM; both
> absolutely barebones except for 'pkg install gmake autoconf git' and
> checking out master from github/erlang/otp -- that bootstrap erlc built on
> the systems with only 512M RAM segfaults, but bootstrap erlc built on the
> 8G machine works fine.
>
> As a test to see if maybe something in the build process itself was
> running out of memory, I added 7 gigabytes of swap to the 512M RAM machine,
> cleaned, and rebuilt; same result; compile fails, bootstrap built erlc is
> throwing segfaults:
>
> root@REDACTED:/usr/home/freebsd/otp # ./bootstrap/bin/erlc
> lib/edoc/src/edoc_refs.erl
> lib/edoc/src/edoc.hrl:40: can't find include file "edoc_doclet.hrl"
> Segmentation fault (core dumped)
>
> however, on that same 512M machine, checking out OTP-17.5 and building
> works fine and the resulting erlc is a happy erlc.
>
> Perhaps it is the case that erlc in 18.x is now over some threshold in
> memory size which has been fine to date, but which the kernel can't now fit
> into 512M RAM by (essentially) itself.
>
> As far as only subscribers being allowed to post to erlang-bugs: it turns
> out that my first post, pre-subscribe, did make it into the moderator queue
> after all, actually (which was my expected result), but that I didn't get
> any notification that it did.  Then, when I subscribed and re-posted,
> thinking that the first had been rejected, I did get a moderator queue
> notice.  I'd suspect the most optimal behavior would be for non-subscribers
> to be able to post, but for them to get the moderator queue notice so that
> they don't do what I did.
>
> F.
>
>
> On Wed, Jun 3, 2015 at 9:23 AM, Björn-Egil Dahlberg <
> wallentin.dahlberg@REDACTED> wrote:
>
>> No known problems exists here and I cannot reproduce this problem.
>> I tested on:
>> (65bf43e...) egil@REDACTED /ldisk/egil/otp $ git describe
>> OTP-18.0-rc2-244-g65bf43e
>> (65bf43e...) egil@REDACTED /ldisk/egil/otp $ uname -a
>> FreeBSD luthien 10.1-RELEASE-p9 FreeBSD 10.1-RELEASE-p9 #0: Tue Apr  7
>> 01:09:46 UTC 2015
>>
>> building:
>>
>> (65bf43e...) egil@REDACTED /ldisk/egil/otp $ ./otp_build autoconf &&
>> ./configure && gmake
>> ...
>> (65bf43e...) egil@REDACTED /ldisk/egil/otp $ bin/erl
>>
>> Erlang/OTP 18 [RELEASE CANDIDATE 2] [erts-7.0] [source] [64-bit]
>> [smp:4:4] [async-threads:10] [hipe] [kernel-poll:false]
>>
>> Eshell V7.0  (abort with ^G)
>> 1>
>>
>>
>> Make sure you have a clean environment when building, i.e. git clean -fxd.
>>
>> No, it is not a bug that you have to subscribe in order to send mails to
>> this list. It's a feature. =)
>>
>> // Björn-Egil
>>
>> 2015-06-03 17:41 GMT+02:00 Felix Gallo <felixgallo@REDACTED>:
>>
>>> root@REDACTED:~/otp # git status | sed 2q ; git log | sed 3q
>>> On branch master
>>> Your branch is up-to-date with 'origin/master'.
>>> commit 65bf43e82a8ec731aafdbac74d41d65b63c7f49c
>>> Merge: 2373536 f9af336
>>> Author: Henrik Nord <henrik@REDACTED>
>>> root@REDACTED:~/otp # ./otp_build autoconf && ./configure && gmake
>>>
>>> [...snip...]
>>>
>>> === Entering application hipe
>>> gmake[3]: Entering directory '/root/otp/lib/hipe/rtl'
>>> erlc -W  +debug_info +inline +warn_unused_import +warn_exported_vars
>>> -o../ebin hipe_rtl.erl
>>> /root/otp/make/x86_64-unknown-freebsd10.1/otp.mk:122: recipe for target
>>> '../ebin/hipe_rtl.beam' failed
>>> gmake[3]: *** [../ebin/hipe_rtl.beam] Segmentation fault (core dumped)
>>>
>>> appears to be on first use of the bootstrapped erlc, which seems
>>> familiar from threads on erlang-questions but those appear to have been
>>> resolved (?).
>>>
>>> same problem appears to occur on 8.0rc2.
>>>
>>> Additionally, it appears you can't send mail to erlang-bugs without
>>> being a subscriber, which itself may be a bug.
>>>
>>> F.
>>>
>>> _______________________________________________
>>> erlang-bugs mailing list
>>> erlang-bugs@REDACTED
>>> http://erlang.org/mailman/listinfo/erlang-bugs
>>>
>>>
>>
>
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