licht
New User
Mar 30, 2007, 9:32 AM
Post #1 of 2
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"Attempt to free unreferenced scalar" and "Scalars leaked: 1" ?
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Suppose we have "A.pl" and "B.pm" as follows.
_A.pl_
...
my $dummy=1;
threads->create("B::c", ($dummy));
...
_B.pm_
...
sub c{...}
...
"Scalars leaked: 1" occurs for each ref or a hash (replace $dummy with %dummy in above script) that is passed as argument to "B::c".
"Attempt to free unreferenced scalar" always happens in above example when we pass a variable (of any type) in one process to a sub in another module when it is run as a thread.
In all above cases, arguments have been initialized before creating threads. In "B::c", it also doesn't matter if those arguments appear as lef-side or right-side (the semaphore and queue definitely change their content and I also tried not to use any argument in "B::c" or just print out some scalar or size of some non-scalar.).
So, is this a problem of my script or a bug or some friendly message that can be safely ignored? Any comments? Thanks!
System:
perl v5.8.8 built for i686-linux-thread-multi
2.6.15-gentoo linux
(This post was edited by licht on Mar 30, 2007, 10:06 AM)
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