[Issue 7938] Stack overflow/access violation when throwing exceptions from fibers
http://d.puremagic.com/issues/show_bug.cgi?id=7938 Andrew Lauritzen andrew.laurit...@gmail.com changed: What|Removed |Added Status|NEW |RESOLVED Resolution||INVALID --- Comment #7 from Andrew Lauritzen andrew.laurit...@gmail.com 2012-04-21 23:13:35 PDT --- I'm not using fibers for concurrency (there is none in this program), and I'm well-aware of how debugging parallel programs works :) See the accompanying thread on the D forums for a description and discussion of what I and others are using the fibers for. Fine with closing this for now. As discussed there are still some loose ends (stack overflow messages, bizarre debugger behavior on exception throwing) but I'll file more specific bugs and test cases if I run into issues that can be triggered without the debugger. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
[Issue 7938] Stack overflow/access violation when throwing exceptions from fibers
http://d.puremagic.com/issues/show_bug.cgi?id=7938 SomeDude lovelyd...@mailmetrash.com changed: What|Removed |Added CC||lovelyd...@mailmetrash.com --- Comment #6 from SomeDude lovelyd...@mailmetrash.com 2012-04-21 12:46:26 PDT --- (In reply to comment #5) Sorry for the confusion - I'm not used to assuming that breaking in a debugger could cause side-effects :) Actually, on concurrent programming, it does, and the debugger is practically useless, because you won't be able to see concurrent accesses. You should really use traces. Anyway, both test codes compile and run fine on my machine (2.059 Win32). Should we close ? -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
[Issue 7938] Stack overflow/access violation when throwing exceptions from fibers
http://d.puremagic.com/issues/show_bug.cgi?id=7938
--- Comment #2 from Don clugd...@yahoo.com.au 2012-04-18 21:13:59 PDT ---
I can't reproduce this. If I wrap the example in this
import core.thread;
void main()
{
...code from comment 0...
}
it works fine. But maybe that's different to what you've done. Please provide a
complete example.
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[Issue 7938] Stack overflow/access violation when throwing exceptions from fibers
http://d.puremagic.com/issues/show_bug.cgi?id=7938
Don clugd...@yahoo.com.au changed:
What|Removed |Added
CC||clugd...@yahoo.com.au
--- Comment #1 from Don clugd...@yahoo.com.au 2012-04-18 21:11:50 PDT ---
I wonder if this is related to bug 6329.
I can't reproduce this. If
import core.thread;
void main()
{
}
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[Issue 7938] Stack overflow/access violation when throwing exceptions from fibers
http://d.puremagic.com/issues/show_bug.cgi?id=7938
--- Comment #3 from Andrew Lauritzen andrew.laurit...@gmail.com 2012-04-18
21:28:03 PDT ---
Hmm yeah that was a portion pasted into a large file - should have been
independent, but here we go with a separately tested case:
import core.thread;
import std.stdio;
class A : core.thread.Fiber
{
public this()
{
super(run);
}
public void run()
{
throw new Exception(msg);
}
}
void main()
{
auto a = new A();
try
{
a.call();
}
catch (Exception e)
{
writeln(e.msg);
}
}
This is about the simplest you can get I think, but running it in Debug with
MSVC and Visual D 0.3.31 with a breakpoint on the writeln you'll see the
following in the debugger:
First-chance exception at 0x5d66bc13 in TestFiberExceptions.exe: 0xC0FD:
Stack overflow.
First-chance exception at 0x769ab9bc in TestFiberExceptions.exe: 0xE0440001:
0xe0440001.
First-chance exception at 0x769ab9bc in TestFiberExceptions.exe: 0xE0440001:
0xe0440001.
In this example it doesn't seem to actually crash the program, but in more
complex examples you'll get a stream of access violations and nonsense after
the initial stack overflow. I can try to make it more complex to demonstrate
this behavior as well, but presumably the above output is indicative of a
problem in and of itself?
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[Issue 7938] Stack overflow/access violation when throwing exceptions from fibers
http://d.puremagic.com/issues/show_bug.cgi?id=7938 --- Comment #5 from Andrew Lauritzen andrew.laurit...@gmail.com 2012-04-18 22:07:53 PDT --- Hmm so interestingly I can only seem to repro the access violation portion of this when breaking in the debugger, and since I'm using VisualD, etc. for that this may not actually be an issue with D2 itself. I'm still curious (and nervous) about the Stack Overflow message, but I'm willing to close this one and throw it over to the VisualD people instead given that it seems like that may be where the issue lies; certainly if no one else has seen a similar issue. If I bump into a test case that I can repro without a debugger, I'll definitely open a new issue. Sorry for the confusion - I'm not used to assuming that breaking in a debugger could cause side-effects :) -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
