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I've looked into the Linux failures. They are caused by a
deterministic (i.e. I can reproduce it every time) null dereference
the this pointer in defaultWorkUnitSize(). It appears that DMD is
somehow expecting TaskPool's this pointer to live in the RDI
register. I think, though I'm not sure, that it should be in RAX.
I <b>highly</b> doubt this is a std.parallelism bug.<br>
<br>
As far as the FreeBSD failures, I had seen that failure once before
(pre-2.053 release) but couldn't reproduce it for the life of me to
understand it. I tried about 1,000 times on your FreeBSD box by
executing the unit tests in a loop. I also stress tested
std.parallelism on my Windows box through about 1,000 unittest runs,
on Linux in 64 mode through about 10,000 runs and Linux 32 through
about 5,000 runs. All of these passed. Since I couldn't for the
life of me reproduce this issue on any other OS, it was insanely
hard to reproduce on FreeBSD, the FreeBSD port wasn't exactly
mature, and I had no idea what else to do, I gave up and assumed it
was <b>probably</b> a bug in some FreeBSD-specific code. I've
added a message to the relevant assert statement so if this assert
is tripped again, we'll be able to figure out why. <br>
<br>
On 5/14/2011 5:04 PM, Brad Roberts wrote:
<blockquote cite="mid:4DCEEE6B.1030106@puremagic.com" type="cite">
<pre wrap="">Not sure that these changes below actually caused the problem, but several runs of std/parallelism have failed:
freebsd 32
linux 32/64, twice
The first linux 64/64 run with these changes passed, as did the rest. The second linux 64/64 run was mangled due to the
makefiles MODULE changes (fixed so we'll get more data for the next run).
Given that std/parallelism hasn't had a long history of success, I'm more inclined to blame it, but not heavily so.
On 5/14/2011 12:34 PM, <a class="moz-txt-link-abbreviated" href="mailto:noreply@github.com">noreply@github.com</a> wrote:of
</pre>
<blockquote type="cite">
<pre wrap="">Branch: refs/heads/master
Home: <a class="moz-txt-link-freetext" href="https://github.com/D-Programming-Language/dmd">https://github.com/D-Programming-Language/dmd</a>
Commit: 3160a5292941b35a5c96922dd32fc8153202fe3c
<a class="moz-txt-link-freetext" href="https://github.com/D-Programming-Language/dmd/commit/3160a5292941b35a5c96922dd32fc8153202fe3c">https://github.com/D-Programming-Language/dmd/commit/3160a5292941b35a5c96922dd32fc8153202fe3c</a>
Author: Brad Roberts <a class="moz-txt-link-rfc2396E" href="mailto:braddr@puremagic.com"><braddr@puremagic.com></a>
Date: 2011-05-13 (Fri, 13 May 2011)
Changed paths:
M src/backend/os.c
M test/Makefile
M test/d_do_test.d
Log Message:
-----------
Add support for freebsd 64 bit os support functions. Disable 2 failing dmd test and all PIC related tests for now.
Commit: 7d29ebfb92825c1dd103e230830d7cfbb87a4da3
<a class="moz-txt-link-freetext" href="https://github.com/D-Programming-Language/dmd/commit/7d29ebfb92825c1dd103e230830d7cfbb87a4da3">https://github.com/D-Programming-Language/dmd/commit/7d29ebfb92825c1dd103e230830d7cfbb87a4da3</a>
Author: Walter Bright <a class="moz-txt-link-rfc2396E" href="mailto:walter@walterbright.com"><walter@walterbright.com></a>
Date: 2011-05-14 (Sat, 14 May 2011)
Changed paths:
M src/backend/os.c
M test/Makefile
M test/d_do_test.d
Log Message:
-----------
Merge pull request #67 from braddr/freebsd64
Initial freebsd/64 patches
Compare: <a class="moz-txt-link-freetext" href="https://github.com/D-Programming-Language/dmd/compare/95229fe...7d29ebf">https://github.com/D-Programming-Language/dmd/compare/95229fe...7d29ebf</a>
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</blockquote>
<pre wrap="">
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