Mikhail,
This is the gdb trace file at the point where execution gets lost.
It always seem to happen in a pthread call.
~Sudhan
"0x5342d2 \"DBM Processor\""}],file="../system/thread.cpp",line="89"}
[1,144,342,496,789] (gdb)
[1,144,342,496,789] 120-stack-info-depth
[1,144,342,496,804] 120^done,depth="5"
[1,144,342,496,804] (gdb)
[1,144,342,496,804] 121-stack-list-frames 0 5
[1,144,342,496,820]
121^done,stack=[frame={level="0",addr="0x00419a5f",func="WvT
hread::WvThread",fil\
e="../system/thread.cpp",line="89"},frame={level="1",addr="0x00419d29",f
unc="Con
tentManager::Content\
Manager",file="../content/content_mgr.cpp",line="49"},frame={level="2",a
ddr="0x0
040365b",func="start\
_stb",file="../stb_core/stb_core.cpp",line="88"},frame={level="3",addr="
0x004018
5f",func="realMain",\
file="../appSTB.cpp",line="599"},frame={level="4",addr="0x004010ed",func
="main",
file="../appSTB.cpp"\
,line="347"}]
[1,144,342,496,820] (gdb)
[1,144,342,496,820] 122-var-update var1
[1,144,342,496,820] 122^done,changelist=[]
[1,144,342,496,820] (gdb)
[1,144,342,496,820] 123-var-update var2
[1,144,342,496,836] 123^done,changelist=[]
[1,144,342,496,836] (gdb)
[1,144,342,496,836] 124-var-update var3
[1,144,342,496,851] 124^done,changelist=[]
[1,144,342,496,851] (gdb)
[1,144,342,496,851] 125-data-list-changed-registers
[1,144,342,496,867] 125^done,changed-registers=["0","1","3","8","9"]
[1,144,342,496,867] (gdb)
[1,144,342,496,867] 126 info sharedlibrary
[1,144,342,496,867] &"info sharedlibrary\n"
[1,144,342,496,867] ~"DLL Name
Load Address\n\
"
[1,144,342,496,867] ~"ntdll.dll
7c901000\n"
[1,144,342,496,867] ~"/cygdrive/c/WINDOWS/system32/kernel32.dll
7c801000\n"
[1,144,342,496,867] ~"/usr/bin/cygwin1.dll
61001000\n"
[1,144,342,496,867] ~"/cygdrive/c/WINDOWS/system32/advapi32.dll
77dd1000\n"
[1,144,342,496,867] ~"/cygdrive/c/WINDOWS/system32/rpcrt4.dll
77e71000\n"
[1,144,342,496,867] ~"/cygdrive/c/WINDOWS/system32/mpr.dll
71b21000\n"
[1,144,342,496,867] ~"/cygdrive/c/WINDOWS/system32/user32.dll
77d41000\n"
[1,144,342,496,867] ~"/cygdrive/c/WINDOWS/system32/gdi32.dll
77f11000\n"
[1,144,342,496,867] ~"/cygdrive/c/WINDOWS/system32/secur32.dll
77fe1000\n"
[1,144,342,496,867] ~"/cygdrive/c/WINDOWS/system32/wsock32.dll
71ad1000\n"
[1,144,342,496,867] ~"/cygdrive/c/WINDOWS/system32/ws2_32.dll
71ab1000\n"
[1,144,342,496,883] ~"/cygdrive/c/WINDOWS/system32/msvcrt.dll
77c11000\n"
[1,144,342,496,883] ~"/cygdrive/c/WINDOWS/system32/ws2help.dll
71aa1000\n"
[1,144,342,496,883] ~"/cygdrive/c/WINDOWS/system32/mswsock.dll
71a51000\n"
[1,144,342,496,883] ~"/cygdrive/c/WINDOWS/system32/hnetcfg.dll
662b1000\n"
[1,144,342,496,883] ~"/cygdrive/c/WINDOWS/System32/wshtcpip.dll
71a91000\n"
[1,144,342,496,883] ~"/cygdrive/c/WINDOWS/system32/dnsapi.dll
76f21000\n"
[1,144,342,496,883] ~"/cygdrive/c/WINDOWS/System32/winrnr.dll
76fb1000\n"
[1,144,342,496,883] ~"/cygdrive/c/WINDOWS/system32/wldap32.dll
76f61000\n"
[1,144,342,496,883] ~"/cygdrive/c/Program Files/Bonjour/mdnsNSP.dll
19781000\n"
[1,144,342,496,883] ~"/cygdrive/c/Program Files/Bonjour/dnssd.dll
197a1000\n"
[1,144,342,496,883] ~"/cygdrive/c/WINDOWS/system32/iphlpapi.dll
76d61000\n"
[1,144,342,496,883] 126^done
[1,144,342,496,883] (gdb)
[1,144,342,498,383] 127-exec-step 1
[1,144,342,498,383] 127^running
[1,144,342,498,383] (gdb)
[1,144,342,498,399]
127*stopped,reason="end-stepping-range",thread-id="1",frame=
{addr="0x0042329a",f\
unc="WvSemaphore::WvSemaphore",args=[{name="this",value="0xfe402c"},{nam
e="cnt",
value="0"}],file="..\
/system/semaphore.cpp",line="53"}
[1,144,342,498,399] (gdb)
[1,144,342,498,399] 128 info threads
[1,144,342,498,399] &"info threads\n"
[1,144,342,498,399] ~" 2 thread 3552.0x7e4 "
[1,144,342,498,399] ~"* 1 thread 3552.0x3f8 "
[1,144,342,498,399]
128^done,frame={addr="0x7c90eb94",func="ntdll!LdrAccessResou
rce",args=[],from="n\
tdll.dll"},frame={func="WvSemaphore::WvSemaphore",args=[{name="this",val
ue="0xfe
402c"},{name="cnt",v\
alue="0"}],file="../system/semaphore.cpp",line="53"}
[1,144,342,498,414] (gdb)
[1,144,342,498,414] 129-stack-info-depth
[1,144,342,498,414] 129^done,depth="5"
[1,144,342,498,414] (gdb)
[1,144,342,498,414] 130-stack-list-frames 0 5
[1,144,342,498,430]
130^done,stack=[frame={level="0",addr="0x0042329a",func="WvS
emaphore::WvSemaphor\
e",file="../system/semaphore.cpp",line="53"},frame={level="1",addr="0x00
419d78",
func="ContentManager\
::ContentManager",file="../content/content_mgr.cpp",line="49"},frame={le
vel="2",
addr="0x0040365b",fu\
nc="start_stb",file="../stb_core/stb_core.cpp",line="88"},frame={level="
3",addr=
"0x0040185f",func="r\
ealMain",file="../appSTB.cpp",line="599"},frame={level="4",addr="0x00401
0ed",fun
c="main",file="../ap\
pSTB.cpp",line="347"}]
[1,144,342,498,430] (gdb)
[1,144,342,498,430] 131-var-update var1
[1,144,342,498,446] 131^done,changelist=[]
[1,144,342,498,446] (gdb)
[1,144,342,498,446] 132-var-update var2
[1,144,342,498,446] 132^done,changelist=[]
[1,144,342,498,446] (gdb)
[1,144,342,498,446] 133-var-update var3
[1,144,342,498,461] 133^done,changelist=[]
[1,144,342,498,461] (gdb)
[1,144,342,498,461] 134-data-list-changed-registers
[1,144,342,498,477] 134^done,changed-registers=["0","3","8","9"]
[1,144,342,498,477] (gdb)
[1,144,342,498,477] 135 info sharedlibrary
[1,144,342,498,477] &"info sharedlibrary\n"
[1,144,342,498,477] ~"DLL Name
Load Address\n\
"
[1,144,342,498,477] ~"ntdll.dll
7c901000\n"
[1,144,342,498,477] ~"/cygdrive/c/WINDOWS/system32/kernel32.dll
7c801000\n"
[1,144,342,498,477] ~"/usr/bin/cygwin1.dll
61001000\n"
[1,144,342,498,477] ~"/cygdrive/c/WINDOWS/system32/advapi32.dll
77dd1000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/rpcrt4.dll
77e71000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/mpr.dll
71b21000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/user32.dll
77d41000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/gdi32.dll
77f11000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/secur32.dll
77fe1000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/wsock32.dll
71ad1000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/ws2_32.dll
71ab1000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/msvcrt.dll
77c11000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/ws2help.dll
71aa1000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/mswsock.dll
71a51000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/hnetcfg.dll
662b1000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/System32/wshtcpip.dll
71a91000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/dnsapi.dll
76f21000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/System32/winrnr.dll
76fb1000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/wldap32.dll
76f61000\n"
[1,144,342,498,493] ~"/cygdrive/c/Program Files/Bonjour/mdnsNSP.dll
19781000\n"
[1,144,342,498,493] ~"/cygdrive/c/Program Files/Bonjour/dnssd.dll
197a1000\n"
[1,144,342,498,493] ~"/cygdrive/c/WINDOWS/system32/iphlpapi.dll
76d61000\n"
[1,144,342,498,493] 135^done
[1,144,342,498,493] (gdb)
[1,144,342,498,539] 136-data-disassemble -f ../system/semaphore.cpp -l
53 -n
100
-- 1
[1,144,342,498,555]
136^done,asm_insns=[src_and_asm_line={line="52",file="../sys
tem/semaphore.cpp",l\
ine_asm_insn=[{address="0x00423230",func-name="_ZN11WvSemaphoreC2Ej",off
set="0",
inst="push %ebp"},\
{address="0x00423231",func-name="_ZN11WvSemaphoreC2Ej",offset="1",inst="
mov
%
esp,%ebp"},{address=\
"0x00423233",func-name="_ZN11WvSemaphoreC2Ej",offset="3",inst="sub
$0x8,%esp"
}]},src_and_asm_line\
={line="53",file="../system/semaphore.cpp",line_asm_insn=[{address="0x00
423236",
func-name="_ZN11WvSe\
maphoreC2Ej",offset="6",inst="movl
$0x0,0x4(%esp)"},{address="0x0042323e",func
-name="_ZN11WvSemaph\
oreC2Ej",offset="14",inst="mov
0x8(%ebp),%eax"},{address="0x00423241",func-na
me="_ZN11WvSemaphore\
C2Ej",offset="17",inst="mov
%eax,(%esp)"},{address="0x00423244",func-name="_Z
N11WvSemaphoreC2Ej",\
offset="20",inst="call 0x460960
<pthread_mutex_init>"}]},src_and_asm_line={lin
e="54",file="../syst\
em/semaphore.cpp",line_asm_insn=[{address="0x00423249",func-name="_ZN11W
vSemapho
reC2Ej",offset="25",\
inst="movl
$0x0,0x4(%esp)"},{address="0x00423251",func-name="_ZN11WvSemaphoreC
2Ej",offset="33",ins\
t="mov
0x8(%ebp),%eax"},{address="0x00423254",func-name="_ZN11WvSemaphoreC2Ej
",offset="36",inst="\
add
$0x4,%eax"},{address="0x00423257",func-name="_ZN11WvSemaphoreC2Ej",offse
t
="39",inst="mov %\
eax,(%esp)"},{address="0x0042325a",func-name="_ZN11WvSemaphoreC2Ej",offs
et="42",
inst="call 0x4609e\
0
<pthread_cond_init>"}]},src_and_asm_line={line="55",file="../system/sema
phore.
cpp",line_asm_insn=[\
{address="0x0042325f",func-name="_ZN11WvSemaphoreC2Ej",offset="47",inst=
"movl
$0x0,0x4(%esp)"},{ad\
dress="0x00423267",func-name="_ZN11WvSemaphoreC2Ej",offset="55",inst="mo
v
0x8
(%ebp),%eax"},{addre\
ss="0x0042326a",func-name="_ZN11WvSemaphoreC2Ej",offset="58",inst="add
$0x8,%
eax"},{address="0x00\
42326d",func-name="_ZN11WvSemaphoreC2Ej",offset="61",inst="mov
%eax,(%esp)"},
{address="0x00423270\
",func-name="_ZN11WvSemaphoreC2Ej",offset="64",inst="call 0x4609e0
<pthread_co
nd_init>"}]},src_and\
_asm_line={line="56",file="../system/semaphore.cpp",line_asm_insn=[{addr
ess="0x0
0423275",func-name="\
_ZN11WvSemaphoreC2Ej",offset="69",inst="mov
0x8(%ebp),%edx"},{address="0x0042
3278",func-name="_ZN\
11WvSemaphoreC2Ej",offset="72",inst="mov
0xc(%ebp),%eax"},{address="0x0042327
b",func-name="_ZN11W\
vSemaphoreC2Ej",offset="75",inst="mov
%eax,0xc(%edx)"}]},src_and_asm_line={li
ne="57",file="../sys\
tem/semaphore.cpp",line_asm_insn=[{address="0x0042327e",func-name="_ZN11
WvSemaph
oreC2Ej",offset="78"\
,inst="mov
0x8(%ebp),%edx"},{address="0x00423281",func-name="_ZN11WvSemaphore
C2Ej",offset="81",in\
st="mov
0x8(%ebp),%eax"},{address="0x00423284",func-name="_ZN11WvSemaphoreC2E
j",offset="84",inst=\
"movl
$0x0,0x14(%eax)"},{address="0x0042328b",func-name="_ZN11WvSemaphoreC2Ej"
,offset="91",inst="m\
ovl
$0x0,0x10(%edx)"}]},src_and_asm_line={line="58",file="../system/semaphor
e.
cpp",line_asm_insn=[\
{address="0x00423292",func-name="_ZN11WvSemaphoreC2Ej",offset="98",inst=
"leave
"},{address="0x00423\
293",func-name="_ZN11WvSemaphoreC2Ej",offset="99",inst="ret "}]}]
[1,144,342,498,571] (gdb)
[1,144,342,498,571] 137-data-disassemble -s 0x42329a -e 0x4232fe -- 0
[1,144,342,498,586]
137^done,asm_insns=[{address="0x0042329a",func-name="_ZN11Wv
SemaphoreC1Ej",offse\
t="6",inst="movl
$0x0,0x4(%esp)"},{address="0x004232a2",func-name="_ZN11WvSema
phoreC1Ej",offset="1\
4",inst="mov
0x8(%ebp),%eax"},{address="0x004232a5",func-name="_ZN11WvSemapho
reC1Ej",offset="17",\
inst="mov
%eax,(%esp)"},{address="0x004232a8",func-name="_ZN11WvSemaphoreC1Ej
",offset="20",inst="\
call 0x460960
<pthread_mutex_init>"},{address="0x004232ad",func-name="_ZN11WvS
emaphoreC1Ej",offset\
="25",inst="movl
$0x0,0x4(%esp)"},{address="0x004232b5",func-name="_ZN11WvSema
phoreC1Ej",offset="3\
3",inst="mov
0x8(%ebp),%eax"},{address="0x004232b8",func-name="_ZN11WvSemapho
reC1Ej",offset="36",\
inst="add
$0x4,%eax"},{address="0x004232bb",func-name="_ZN11WvSemaphoreC1Ej",
offset="39",inst="mo\
v
%eax,(%esp)"},{address="0x004232be",func-name="_ZN11WvSemaphoreC1Ej",off
set
="42",inst="call 0\
x4609e0
<pthread_cond_init>"},{address="0x004232c3",func-name="_ZN11WvSemaphoreC
1Ej",offset="47",ins\
t="movl
$0x0,0x4(%esp)"},{address="0x004232cb",func-name="_ZN11WvSemaphoreC1Ej
",offset="55",inst="\
mov
0x8(%ebp),%eax"},{address="0x004232ce",func-name="_ZN11WvSemaphoreC1Ej",
o
ffset="58",inst="add\
$0x8,%eax"},{address="0x004232d1",func-name="_ZN11WvSemaphoreC1Ej",offse
t="6
1",inst="mov %eax\
,(%esp)"},{address="0x004232d4",func-name="_ZN11WvSemaphoreC1Ej",offset=
"64",ins
t="call 0x4609e0 <\
pthread_cond_init>"},{address="0x004232d9",func-name="_ZN11WvSemaphoreC1
Ej",offs
et="69",inst="mov \
0x8(%ebp),%edx"},{address="0x004232dc",func-name="_ZN11WvSemaphoreC1Ej",
offset=
"72",inst="mov 0x\
c(%ebp),%eax"},{address="0x004232df",func-name="_ZN11WvSemaphoreC1Ej",of
fset="75
",inst="mov %eax,\
0xc(%edx)"},{address="0x004232e2",func-name="_ZN11WvSemaphoreC1Ej",offse
t="78",i
nst="mov 0x8(%ebp\
),%edx"},{address="0x004232e5",func-name="_ZN11WvSemaphoreC1Ej",offset="
81",inst
="mov 0x8(%ebp),%\
eax"},{address="0x004232e8",func-name="_ZN11WvSemaphoreC1Ej",offset="84"
,inst="m
ovl $0x0,0x14(%eax\
)"},{address="0x004232ef",func-name="_ZN11WvSemaphoreC1Ej",offset="91",i
nst="mov
l $0x0,0x10(%edx)"\
},{address="0x004232f6",func-name="_ZN11WvSemaphoreC1Ej",offset="98",ins
t="leave
"},{address="0x004\
232f7",func-name="_ZN11WvSemaphoreC1Ej",offset="99",inst="ret
"},{address="0x
004232f8",func-name=\
"_ZN11WvSemaphoreD2Ev",offset="0",inst="push
%ebp"},{address="0x004232f9",func
-name="_ZN11WvSemaph\
oreD2Ev",offset="1",inst="mov
%esp,%ebp"},{address="0x004232fb",func-name="_Z
N11WvSemaphoreD2Ev",\
offset="3",inst="sub $0x8,%esp"}]
[1,144,342,498,586] (gdb)
[1,144,342,533,535] 138-exec-step 1
[1,144,342,533,550] 138^running
[1,144,342,533,550] (gdb)
------------------------------------------------------------------------
-------------------------------------------------------------------
From: "Mikhail Khodjaiants" <mikhailk@xxxxxxx>
Reply-To: CDT Debug developers list <cdt-debug-dev@xxxxxxxxxxx>
To: "CDT Debug developers list" <cdt-debug-dev@xxxxxxxxxxx>
Subject: Re: [cdt-debug-dev] Execution lost in pthread while
debuggingwithCygwin GDB
Date: Thu, 6 Apr 2006 11:50:56 -0400
Sudhan,
Try to reproduce the same sequence from the command line or get the gdb
trace (see CDT Debugger FAQ #5). I don't see anything wrong with the
CDT
debugger, it seems that your program is blocked.
Mikhail
----- Original Message ----- From: "Sudhan Kayarkar"
<sudhank@xxxxxxxxxxx>
To: <cdt-debug-dev@xxxxxxxxxxx>
Sent: Thursday, April 06, 2006 11:33 AM
Subject: Re: [cdt-debug-dev] Execution lost in pthread while debugging
withCygwin GDB
Mikhail ,
What I mean is that I can step through the code until it reaches here
-
pthread_mutexattr_t attr;
=> pthread_mutexattr_init(&attr);
At the line where the pthread_mutexattr_init routine is called, if I
do
a
Step Over or Step Into or Run (with a breakpoint on the next line) the
debugger doesn't return and the execution just seems to get lost. The
only
thing I can do is suspend or terminate. The Debug window shows 2
threads
-
the status of this one is 'Stepping' and the status of the other is
'Running'.
The error log does not generate any message when this happens.
Thanks,
Sudhan
From: "Mikhail Khodjaiants" <mikhailk@xxxxxxx>
Reply-To: CDT Debug developers list <cdt-debug-dev@xxxxxxxxxxx>
To: "CDT Debug developers list" <cdt-debug-dev@xxxxxxxxxxx>
Subject: Re: [cdt-debug-dev] Execution lost in pthread while
debugging
withCygwin GDB Date: Wed, 5 Apr 2006 17:27:45 -0400
What do you mean by "control does not return to the debugger"? Is the
session in the running state? Check the error log.
----- Original Message ----- From: "Sudhan Kayarkar"
<sudhank@xxxxxxxxxxx>
To: <cdt-debug-dev@xxxxxxxxxxx>
Sent: Wednesday, April 05, 2006 5:06 PM
Subject: [cdt-debug-dev] Execution lost in pthread while debugging
with
Cygwin GDB
I have a multi threaded project executable built using g++ that runs
fine
from command line or Windows double click.
However, when I try to debug using Cygwin GDB the execution gets
lost
when a
call to pthread_mutexattr_init is made i.e. control does not return
to
the
debugger.
The point at which this happens is NOT the first time that this
pthread
function is invoked. There are earlier invocations of this function
that
execute fine.
Any clues about what might be happening or how this issue can be
root
caused
?
Thanks,
Sudhan
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