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Date:      Sun, 20 Apr 2014 20:40:08 +0200
From:      Dimitry Andric <dim@FreeBSD.org>
To:        "O. Hartmann" <ohartman@zedat.fu-berlin.de>
Cc:        freebsd-stable@freebsd.org, FreeBSD Ports <freebsd-ports@freebsd.org>
Subject:   Re: [9.2-STABLE/CLANG 3.3|3.4] x11/kdelibs4
Message-ID:  <C340C8EC-9AE2-495F-9141-76B4571E0DBE@FreeBSD.org>
In-Reply-To: <20140420174725.199ec7af.ohartman@zedat.fu-berlin.de>
References:  <20140418081014.2ac2536e@munin.walstatt.dyndns.org> <641C6CAA-C472-4359-9293-E65F16E84DC6@FreeBSD.org> <20140419103237.41962eff.ohartman@zedat.fu-berlin.de> <A9688D03-8CC4-4C60-9BBD-A364BB598D46@FreeBSD.org> <20140419193019.0ee792e6.ohartman@zedat.fu-berlin.de> <CBBECAB9-B48F-416C-BE39-64D6D5738B9C@FreeBSD.org> <20140420174725.199ec7af.ohartman@zedat.fu-berlin.de>

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On 20 Apr 2014, at 17:47, O. Hartmann <ohartman@zedat.fu-berlin.de> =
wrote:
> On Sat, 19 Apr 2014 20:25:51 +0200
> Dimitry Andric <dim@FreeBSD.org> wrote:
>> On 19 Apr 2014, at 19:30, O. Hartmann <ohartman@zedat.fu-berlin.de> =
wrote:
>>> On Sat, 19 Apr 2014 18:44:51 +0200
>>> Dimitry Andric <dim@FreeBSD.org> wrote:
>> ...
>>>>> Stop in /usr/ports/x11/kdelibs4/work/.build.
>>>>> *** [khtml/CMakeFiles/khtml.dir/all] Error code 1
>>>>> <parser-b6e15c.cpp><parser-b6e15c.sh>
>>>>=20
>>>> I cannot reproduce the problem on my copy of stable/9 r264647.  =
Using /usr/bin/time
>>>> -l on it results in:
>>>>=20
>>>>       3.36 real         1.01 user         0.59 sys
>>>>    71684  maximum resident set size
>>>>    30951  average shared memory size
>>>>     3349  average unshared data size
>>>>      126  average unshared stack size
>>>>    13539  page reclaims
>>>>      354  page faults
>>>>        0  swaps
>>>>        2  block input operations
>>>>        3  block output operations
>>>>       66  messages sent
>>>>        0  messages received
>>>>        0  signals received
>>>>      370  voluntary context switches
>>>>       10  involuntary context switches
>>>>=20
>>>> So it compiles in 3 seconds, and uses approximately 70MB of memory.
>>> what compiler does your copy use as default? I use CLANG 3.3/3.4
>>=20
>> Just the version of clang that comes with stable/9 r264647, e.g.:
>>=20
>> FreeBSD clang version 3.4 (tags/RELEASE_34/final 197956) 20140216
>>=20
>> Are you using a port version of clang to build kdelibs4, by any =
chance?
>>=20
>> -Dimitry
>>=20
>=20
> I successfully built, as a workaround, the port x11/kdelibs4 with gcc =
4.7 (port lang/gcc).

So it didn't work with lang/clang34 or the base version of clang either?
And with a similar type of error?


> The box in question is a Dell Latitude E6510 notebook with only 4 GB =
of RAM, could this
> be the issue? The system very often starts swapping. Even my oldstyle =
E8400 workstation
> with only 8 GB (most recent 11.0-CURRENT) starts swapping very often =
and recently, I saw
> musterious compiler erros and stopping compiling processes never seen =
bevor. Restarting
> the failed portbuild most often finish successfully.

There were some postings recently, about newer versions of FreeBSD being
supposedly more "swappy", see e.g.:

=
http://lists.freebsd.org/pipermail/freebsd-stable/2014-April/thread.html#7=
8361

I have no idea if this is really substantiated with evidence, or just a
feeling, though. :)

In any case, when you are experiencing mysterious compiler errors, and
your system is heavily exercising RAM and swap, it is always a good idea
to do a full hardware diagnostics test.

For your RAM, you can use memtest86+, and since you have a Dell, you can
use their diagnostics program to test other parts of the machine.

-Dimitry


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