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Author	vstinner
Recipients	PyryP, vstinner
Date	2011-11-22.16:22:32
SpamBayes Score	0.011338939
Marked as misclassified	No
Message-id	<1321978953.43.0.329916871926.issue13454@psf.upfronthosting.co.za>
In-reply-to

Content
tee() uses a linked-list of teedataobject. This list is destroyed by recursive calls to teedataobject_dealloc(). Extract of the gdb trace: #5 0x08171a8e in teedataobject_clear (tdo=0xad21b394) at ./Modules/itertoolsmodule.c:412 #6 0x08171b39 in teedataobject_dealloc (tdo=0xad21b394) at ./Modules/itertoolsmodule.c:421 #7 0x0805ed3d in _Py_Dealloc (op=<itertools.tee_dataobject at remote 0xad21b394>) at Objects/object.c:1676 #8 0x08171b16 in teedataobject_clear (tdo=0xad21b274) at ./Modules/itertoolsmodule.c:413 #9 0x08171b39 in teedataobject_dealloc (tdo=0xad21b274) at ./Modules/itertoolsmodule.c:421 #10 0x0805ed3d in _Py_Dealloc (op=<itertools.tee_dataobject at remote 0xad21b274>) at Objects/object.c:1676 #11 0x08171b16 in teedataobject_clear (tdo=0xad21b154) at ./Modules/itertoolsmodule.c:413 #12 0x08171b39 in teedataobject_dealloc (tdo=0xad21b154) at ./Modules/itertoolsmodule.c:421 #13 0x0805ed3d in _Py_Dealloc (op=<itertools.tee_dataobject at remote 0xad21b154>) at Objects/object.c:1676 #14 0x08171b16 in teedataobject_clear (tdo=0xad21b034) at ./Modules/itertoolsmodule.c:413 #15 0x08171b39 in teedataobject_dealloc (tdo=0xad21b034) at ./Modules/itertoolsmodule.c:421 #16 0x0805ed3d in _Py_Dealloc (op=<itertools.tee_dataobject at remote 0xad21b034>) at Objects/object.c:1676 #17 0x08171b16 in teedataobject_clear (tdo=0xad292ed4) at ./Modules/itertoolsmodule.c:413 #18 0x08171b39 in teedataobject_dealloc (tdo=0xad292ed4) at ./Modules/itertoolsmodule.c:421 #19 0x0805ed3d in _Py_Dealloc (op=<itertools.tee_dataobject at remote 0xad292ed4>) at Objects/object.c:1676 #20 0x08171b16 in teedataobject_clear (tdo=0xad292db4) at ./Modules/itertoolsmodule.c:413 #21 0x08171b39 in teedataobject_dealloc (tdo=0xad292db4) at ./Modules/itertoolsmodule.c:421 #22 0x0805ed3d in _Py_Dealloc (op=<itertools.tee_dataobject at remote 0xad292db4>) at Objects/object.c:1676 #23 0x08171b16 in teedataobject_clear (tdo=0xad292c94) at ./Modules/itertoolsmodule.c:413

tee() uses a linked-list of teedataobject. This list is destroyed by recursive calls to teedataobject_dealloc().

Extract of the gdb trace:

#5  0x08171a8e in teedataobject_clear (tdo=0xad21b394) at ./Modules/itertoolsmodule.c:412
#6  0x08171b39 in teedataobject_dealloc (tdo=0xad21b394) at ./Modules/itertoolsmodule.c:421
#7  0x0805ed3d in _Py_Dealloc (op=<itertools.tee_dataobject at remote 0xad21b394>) at Objects/object.c:1676
#8  0x08171b16 in teedataobject_clear (tdo=0xad21b274) at ./Modules/itertoolsmodule.c:413
#9  0x08171b39 in teedataobject_dealloc (tdo=0xad21b274) at ./Modules/itertoolsmodule.c:421
#10 0x0805ed3d in _Py_Dealloc (op=<itertools.tee_dataobject at remote 0xad21b274>) at Objects/object.c:1676
#11 0x08171b16 in teedataobject_clear (tdo=0xad21b154) at ./Modules/itertoolsmodule.c:413
#12 0x08171b39 in teedataobject_dealloc (tdo=0xad21b154) at ./Modules/itertoolsmodule.c:421
#13 0x0805ed3d in _Py_Dealloc (op=<itertools.tee_dataobject at remote 0xad21b154>) at Objects/object.c:1676
#14 0x08171b16 in teedataobject_clear (tdo=0xad21b034) at ./Modules/itertoolsmodule.c:413
#15 0x08171b39 in teedataobject_dealloc (tdo=0xad21b034) at ./Modules/itertoolsmodule.c:421
#16 0x0805ed3d in _Py_Dealloc (op=<itertools.tee_dataobject at remote 0xad21b034>) at Objects/object.c:1676
#17 0x08171b16 in teedataobject_clear (tdo=0xad292ed4) at ./Modules/itertoolsmodule.c:413
#18 0x08171b39 in teedataobject_dealloc (tdo=0xad292ed4) at ./Modules/itertoolsmodule.c:421
#19 0x0805ed3d in _Py_Dealloc (op=<itertools.tee_dataobject at remote 0xad292ed4>) at Objects/object.c:1676
#20 0x08171b16 in teedataobject_clear (tdo=0xad292db4) at ./Modules/itertoolsmodule.c:413
#21 0x08171b39 in teedataobject_dealloc (tdo=0xad292db4) at ./Modules/itertoolsmodule.c:421
#22 0x0805ed3d in _Py_Dealloc (op=<itertools.tee_dataobject at remote 0xad292db4>) at Objects/object.c:1676
#23 0x08171b16 in teedataobject_clear (tdo=0xad292c94) at ./Modules/itertoolsmodule.c:413

History
Date	User	Action	Args
2011-11-22 16:22:33	vstinner	set	recipients: + vstinner, PyryP
2011-11-22 16:22:33	vstinner	set	messageid: <1321978953.43.0.329916871926.issue13454@psf.upfronthosting.co.za>
2011-11-22 16:22:32	vstinner	link	issue13454 messages
2011-11-22 16:22:32	vstinner	create