On 29/04/2009 3:29 PM, Jade Rubick wrote:
Here is a backtrace of the crash with 1.6 stable. Did you need it from head?
No, that is the correct tls.c. I'm curious what the value of ctx and dh
are in stack frame #11 (at DH_free). Tcl_Panic should be passing a
clear message to - what is that? It may be trying to free memory from a
different thread. I am also suspicious about the several different
*_free functions that are taking place here. DH_free shouldn't trigger
such a chain from what I can see.
This may be some interaction case specific to AOLServer use as well,
with the ns_free layering over the threaded Tcl allocator.
Can't really say much else, except that it does work without the other
components involved.
Jeff
TLS BACKTRACE FROM 1.6 stable (without disabling DH)
*Complete backtrace:*
(gdb) bt
#0 0xffffe410 in __kernel_vsyscall ()
#1 0xb7cd4875 in raise () from /lib/tls/i686/cmov/libc.so.6
#2 0xb7cd6201 in abort () from /lib/tls/i686/cmov/libc.so.6
#3 0xb7ee7a4f in Tcl_PanicVA () from /usr/local/tcl/lib/libtcl8.4.so
<http://libtcl8.4.so>
#4 0xb7ee7a77 in Tcl_Panic () from /usr/local/tcl/lib/libtcl8.4.so
<http://libtcl8.4.so>
#5 0xb7ef6b4f in Ptr2Block () from /usr/local/tcl/lib/libtcl8.4.so
<http://libtcl8.4.so>
#6 0xb7ef7117 in TclpFree () from /usr/local/tcl/lib/libtcl8.4.so
<http://libtcl8.4.so>
#7 0xb7e9751d in Tcl_Free () from /usr/local/tcl/lib/libtcl8.4.so
<http://libtcl8.4.so>
#8 0xb7f27251 in ns_free () from
/usr/local/aolserver40r10/lib/libnsthread.so
#9 0xb605c4aa in CRYPTO_free () from
/usr/lib/i686/cmov/libcrypto.so.0.9.8
#10 0xb60890aa in BN_clear_free () from
/usr/lib/i686/cmov/libcrypto.so.0.9.8
#11 0xb60b0836 in DH_free () from /usr/lib/i686/cmov/libcrypto.so.0.9.8
#12 0xa1ffa1e5 in CTX_Init (statePtr=0x139ce5c0, proto=3, key=0x0,
cert=0x0,
CAdir=0x0, CAfile=0x0, ciphers=0x0) at tls.c:1015
#13 0xa1ff9a72 in ImportObjCmd (clientData=0x0, interp=0x16403240,
objc=4,
objv=0xa97f96bc) at tls.c:800
#14 0xb7e923c3 in TclEvalObjvInternal () from
/usr/local/tcl/lib/libtcl8.4.so <http://libtcl8.4.so>
#15 0xb7e92987 in Tcl_EvalEx () from /usr/local/tcl/lib/libtcl8.4.so
<http://libtcl8.4.so>
#16 0xb7e93635 in Tcl_EvalObjEx () from
/usr/local/tcl/lib/libtcl8.4.so <http://libtcl8.4.so>
...
*Offending frame in stack:*
*#12 0xa1ffa1e5 in CTX_Init (statePtr=0x139ce5c0, proto=3, key=0x0,
cert=0x0,
CAdir=0x0, CAfile=0x0, ciphers=0x0) at tls.c:1015
1015 DH_free(dh);
--
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