[Tcl-bugs] [ tcl-Bugs-1355942 ] crash in nested ns deletions

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Bugs item #1355942, was opened at 2005-11-13 12:41
Message generated for change (Settings changed) made by msofer
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Category: 21. [namespace]
Group: development: 8.5a4
>Status: Closed
>Resolution: Fixed
Priority: 9
Submitted By: miguel sofer (msofer)
Assigned to: miguel sofer (msofer)
Summary: crash in nested ns deletions

Initial Comment:
mig@ave:/home/CVS/tcl_SF_clean/unix$ cat /tmp/crash
namespace eval ::test_ns_2 {
    proc foo {} {lappend ::result 2}
    trace add command foo delete {namespace eval
::test_ns_3 foo;#}
}
namespace eval ::test_ns_3 {
    proc foo {} {
        namespace delete ::test_ns_2
    }
}
puts [info patch]
namespace delete ::test_ns_2

mig@ave:/home/CVS/tcl_SF_clean/unix$ ./tclsh /tmp/crash
8.5a4
Segmentation fault

NOTE: 8.4.7 is immune, core-8-4-branch and HEAD bomb.

----------------------------------------------------------------------

Comment By: miguel sofer (msofer)
Date: 2005-11-13 22:35

Message:
Logged In: YES 
user_id=148712

Fixed in HEAD; backport to core-8-4-branch not yet done.

----------------------------------------------------------------------

Comment By: miguel sofer (msofer)
Date: 2005-11-13 15:56

Message:
Logged In: YES 
user_id=148712

Simpler crash:

Interestingly, the following does not crash:

namespace eval ::test {
    proc bar {} {}
    trace add command bar delete foo;#
}
proc foo {} {
    namespace delete ::test
}
namespace delete ::test

Another remark: 8.4.7 does not crash here, but it has
different compile flags.


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