core dumping inside Performer

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Ran Yakir (rany++at++fred.bvr.co.il)
Wed, 16 Nov 1994 11:44:33 +0000

Hi

I tried to link my Performer application with malloc_db.o from the Dev. Toolbox
(in search of some malloc problems).
Suprisingly, Performer crashed inside pfAllocChanData, upon tying to
free (NULL). It doesn't do so when I link without malloc_db.o .

This is the 'where' output of dbx :

> 0 db_unlink(ptr = 0xffffffec) [0x43786c]
   1 free(vptr = (nil)) ["malloc_db.c":503, 0x43780c]
   2 operator delete(void*)(d = (nil)) ["../../../lib/libpf/pfProcess.C":3442,
0x4dd69c]
   3 pfChannel::newPassThruData(long)(this = 0x20f76a0, size = 8)
["../../../lib/libpf/pfChannel.C":1291, 0x4f0ae8]
   4 pfAllocChanData(_chan = 0x20f76a0, size = 8)
["../../../lib/libpf/cChannel.C":226, 0x4cd440]
   5 nova_new_channel(pipe = 0x1f75c10, type = 2)
["/tmp_mnt/usr/login/otw/nova/nova_interface.c":3875, 0x454fdc]

What it seems to say is that newPassThruData does delete of a nil pointer,
which in turn calls free with that nil pointer.

can someone with the Performer sources can make something out of that ?

I can send the 29 Megs core if needed.

Thanks

Ran Yakir

-- 
 __                                  | Ran Yakir
 /_)  _  __   \  / _   / o __        | Graphics App. Chief Engineer
/ )_ (_(_) )   \/ (_(_/<_(_)(        | BVR Technologies Ltd.
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