https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
Giuseppe Lavagetto glavage...@wikimedia.org changed:
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Status|UNCONFIRMED
https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
Bryan Davis bda...@wikimedia.org changed:
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CC||bda...@wikimedia.org
https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
--- Comment #11 from Tim Starling tstarl...@wikimedia.org ---
Nice work. A Lua error in an unprotected function like lua_pushcclosure()
could indeed cause a longjmp to unwind HHVM's stack. If Lua was not in the
stack when this happened, it
https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
--- Comment #12 from Tim Starling tstarl...@wikimedia.org ---
Also, because Lua is in the stack, the in_lua flag is set, so slop is zero.
That is to say, the hack intended to fix bug 59130 is disabled. The Lua
userspace takes the usage to
https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
--- Comment #13 from Tim Starling tstarl...@wikimedia.org ---
Created attachment 16028
-- https://bugzilla.wikimedia.org/attachment.cgi?id=16028action=edit
Reduced test case
I used a recursive table a = {a,0} to force Lua to do the small
https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
--- Comment #14 from Tim Starling tstarl...@wikimedia.org ---
On hhvm.256.io, I have installed a LuaSandbox statically linked against Lua
compiled as C++. With this build, the reduced test case exits cleanly with
Fatal error: unknown exception.
https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
--- Comment #9 from Brett Simmers bsimm...@fb.com ---
After some fun times with gdb, I'm almost certain this is luasandbox related,
though I'm not yet sure what the root cause is. I was seeing what looked like
some C++ frames disappearing
https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
--- Comment #10 from Brett Simmers bsimm...@fb.com ---
I don't know anything about the internals of the Zend engine. Is it possible
that this is happening with PHP5 as well but everything happens to work out
anyway? I'll try it tomorrow but
https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
--- Comment #7 from Tim Starling tstarl...@wikimedia.org ---
It is asserting while checking local number 7 of PPFrame_Hash::expand().
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--- Comment #8 from Tim Starling tstarl...@wikimedia.org ---
...that being $iteratorNode. The TypedValue* for $iteratorNode was consistent
enough for me to set a watch on it, which showed it being overwritten with
garbage by
https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
--- Comment #1 from Brett Simmers bsimm...@fb.com ---
~bsimmers/lua.log has a much more useful-looking stacktrace than what we were
previously seeing.
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Ori Livneh o...@wikimedia.org changed:
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Max Semenik maxsem.w...@gmail.com changed:
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Attachment #15964|application/octet-stream|text/plain
https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
Andre Klapper aklap...@wikimedia.org changed:
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Keywords||hiphop
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https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
--- Comment #3 from Tim Starling tstarl...@wikimedia.org ---
The backtrace suggests https://github.com/facebook/hhvm/pull/3121 , which I see
you don't have the fix for in /home/bsimmers/hhvm-dbg . When I parse that page
in CLI mode using
https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
--- Comment #4 from Brett Simmers bsimm...@fb.com ---
I tried with that applied earlier today and it still crashed (I've been messing
with the contents of that working dir recently). I guess I didn't notice that
it was a different crash. How
https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
--- Comment #5 from Ori Livneh o...@wikimedia.org ---
(In reply to Brett Simmers from comment #4)
How can I parse a page in CLI mode?
cd /srv/mediawiki
php maintenance/eval.php
$title = Title::newFromText('San Francisco'); $text =
https://bugzilla.wikimedia.org/show_bug.cgi?id=68196
--- Comment #6 from Tim Starling tstarl...@wikimedia.org ---
Yes, that. There are various other ways to do it, but that one lets you modify
the input text before you run it, which is often useful for isolating
parser-related bugs. However, I
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