Here the program for test:test.c
Compile with: gcc -g -lpthread test.c

Bug solved. Was gdb 5.0 and 5.1 related. Use 5.1.1 instead

debug (no bug):
gdb a.out
... snip ...
(gdb) b 6
Breakpoint 1 at 0x804846b: file test.c, line 6.
(gdb) r
Starting program: a.out
[New Thread 1024 (LWP 2159)]
[Switching to Thread 1024 (LWP 2159)]
Breakpoint 1, main () at test.c:6
6 d=strtod(t,(char **)NULL);
(gdb) p d
$1 = 0
(gdb) n
7 return(0);
(gdb) p d
$2 = 1
(gdb)
 		debug (bug present):
gdb a.out
... snip ...
(gdb) b 6
Breakpoint 1 at 0x804848b: file test.c, line 6.
(gdb) r
Starting program: a.out
[New Thread 1024 (LWP 10936)]
[Switching to Thread 1024 (LWP 10936)]
Breakpoint 1, main () at test.c:6
6 d=strtod(t,(char **)NULL);
(gdb) p d
$1 = 0
(gdb) n
7 return(0);
(gdb) p d
$2 = -nan(0x8000000000000)
(gdb)
Results:
distrib
 libc
 libthread
 gdb
 noyau
 gcc
 bug present
 cpu
 nom
 remarques
Debian testing
 2.2.4
 0.9 5.0.90-cvs
 2.4.14 compiled from source
 2.95.4 20011006
 yes
 PII 450
 extasia
 gdb 20010813
RH 6.1
 2.1.3
 0.8
 4.18
 2.2.12-20 rpm
 egcs-2.91.66 19990314
 no
 PII 266
 ns3
 gdb 4.18 is old
mdk 8.1
 2.2.4
 0.9
 5.0-17
 2.4.8smp rpm
 2.96 20000731
 yes
 bi PII 350
 juliette
rh 7.0
 2.2.4
 0.9
 5.0-7
 2.2.19 compiled from source
 2.96 20000731
 no
 AMD 1.1
 atia
rh 7.2
 2.2.4
 0.9
 5.0rh-5
 2.4.7-10 rpm
 2.96 20000731
 yes
 PII 350
 vmware2
 vmware 3
N/A
 2.2.4
 0.9
 5.0 cvs
 2.4.16 compiled from source
yes
 N/A
 canard
N/A
 2.2.4
 0.9
 5.0 cvs
 2.2.14
 2.95.4 20011006
 no
 motorola
 jb
N/A
 2.2.4
 0.9
 5.0.90
 2.2.19pre (from apt-get?)
no
 6x86
 vb
slack
 2.2.3
 0.9
 5.0
 2.4.14smp compiled from source
 2.95.3
 no
 bi Athlon 1200
 dilbert
slack
 2.2.3
 0.9
 5.0
 2.4.10 compiled from source
 2.95.3
 no
 athlon 750
 dilbert
suse

5.0
 2.2.19
 2.95.2
 no
 k6 233
 dilbert
Debian unstable
 2.2.4
 0.9
 5.0.90cvs
 2.2.17 debian package
 2.95-4 20011006
 no
 PII 350
 vmware
 vmware 3
rh 7.0
 2.2
 0.9
 5.0-7
 2.2.16smp rpm
 2.96 20000731
 no
 Bi PII 375
 hydria
 2.2 glibc no more info rfrom executing libc.so.6
rh 7.2 2.2.4
 0.9
 5.0rh-15
 2.4.13 compiled from source
yes
 PIII 650
 glop
Debian unstable
 2.2.4
 0.9
 5.0.90cvs
 2.4.16 compiled from source
yes
 Duron
 tomasera
MacOsX

5.0 cvs apple
2.95.2 19991024
 no
Ol
 bsd
rh 7.1
 2.2.4-19
 0.9
5.0rh-5
 2.4.9-12smp rpm
 2.96 20000731
 no
 biPIII 500
 Ol
mandrake 8.1
 2.2.4
 0.9
gdb 20010813
 2.4.16 compiled from source
 2.96 20000731
 yes
 PIII 600
 boris
debian unstable
 2.2.4
 0.9
gdb 5.0.90-cvs
 2.4.13-xfs (base + patch XFS)compiled from source
 2.95.4 20011006
 no
 K6-2 350
 dilbert
debian unstable
 2.2.4
 0.9
gdb 5.0.90-cvs
 2.4.14 compiled from source
 2.95.4 20011006
 yes
 AMD AThlon 600 MHz
 kwyxz

Last update: 2001-12-02 15h40