Re: libm/glibc-2.3.6 issue (was - Re: libstdc++ issue?)
juras wrote:
Further investigation of the problem led me to the conclusion
that there must be a bug inside the /lib/libm.so.6, which is
a part of glibc-2.3.6 (in my system)
That probably means that I'll have to upgrade glibc. But I am not sure
if the upgrade - (a rather adventurous task) solves the problem.
LFS-6.3 contains now the glibc-2.5.1.
I would like to ask someone who has the libc-2.5.1 installed
to try to compile, run and send the results of the following simple program:
$ cat tanh.c EOF
#include stdio.h
#include complex.h
#include math.h
int main()
{
complex z=I*M_PI*0.5;
complex th=ctanh(z);
printf(z = (%g, %g), ctanh(z) = (%g,%g)\n,
creal(z),cimag(z),creal(th),cimag(th));
return 0;
}
EOF
$gcc tanh.c -o tanh -lm
$./tanh
Please send the result for me.
In my system (glibc-2.3.6 according LFS-6.2)
the output of the program is:
z = (0, 1.5708), ctanh(z) = (nan, inf)
Which is wrong! (both with gcc-3.3.6 and gcc-4.2.2)
It should be:
z = (0, 1.5708), ctanh(z) = (0, inf)
Hi:
I am aware that Dan has already solved your problem in the meantime,
but as I went thru the motions, hereinafter my results just for the
record. As you can see, the bug is quite *old*... ;)
Richard
quote
GNU C Library stable release version 2.3.3, by Roland McGrath et al.
Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 3.2.2.
Compiled on a Linux 2.4.26 system on 2004-08-28.
Available extensions:
GNU libio by Per Bothner
crypt add-on version 2.1 by Michael Glad and others
linuxthreads-0.10 by Xavier Leroy
BIND-8.2.3-T5B
libthread_db work sponsored by Alpha Processor Inc
NIS(YP)/NIS+ NSS modules 0.19 by Thorsten Kukuk
Report bugs using the `glibcbug' script to [EMAIL PROTECTED].
gcc (GCC) 3.3.3
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-rwxr-x--- 1 rag2 users 6738 Nov 14 10:45 tanh
-rw--- 1 rag2 users 235 Nov 14 10:41 tanh.c
#include stdio.h
#include complex.h
#include math.h
int main()
{
complex z=I*M_PI*0.5;
complex th=ctanh(z);
printf(z = (%g, %g), ctanh(z) = (%g,%g)\n,
creal(z),cimag(z),creal(th),cimag(th));
return 0;
}
z = (0, 1.5708), ctanh(z) = (nan,inf)
**
GNU C Library stable release version 2.5.1, by Roland McGrath et al.
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 4.1.2.
Compiled on a Linux 2.6.12 system on 2007-11-04.
Available extensions:
crypt add-on version 2.1 by Michael Glad and others
GNU Libidn by Simon Josefsson
GNU libio by Per Bothner
NIS(YP)/NIS+ NSS modules 0.19 by Thorsten Kukuk
Native POSIX Threads Library by Ulrich Drepper et al
BIND-8.2.3-T5B
Thread-local storage support included.
For bug reporting instructions, please see:
http://www.gnu.org/software/libc/bugs.html.
gcc (GCC) 4.1.2
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#include stdio.h
#include complex.h
#include math.h
int main()
{
complex z=I*M_PI*0.5;
complex th=ctanh(z);
printf(z = (%g, %g), ctanh(z) = (%g,%g)\n,
creal(z),cimag(z),creal(th),cimag(th));
return 0;
}
-rwxr-x--- 1 root root 5838 Nov 14 11:14 tanh
-rwxr-xr-x 1 root root 235 Nov 14 11:13 tanh.c
z = (0, 1.5708), ctanh(z) = (0,1.63318e+16)
/quote
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Re: libm/glibc-2.3.6 issue (was - Re: libstdc++ issue?)
juras wrote:
Further investigation of the problem led me to the conclusion
that there must be a bug inside the /lib/libm.so.6, which is
a part of glibc-2.3.6 (in my system)
That probably means that I'll have to upgrade glibc. But I am not sure
if the upgrade - (a rather adventurous task) solves the problem.
LFS-6.3 contains now the glibc-2.5.1.
I would like to ask someone who has the libc-2.5.1 installed
to try to compile, run and send the results of the following simple program:
$ cat tanh.c EOF
#include stdio.h
#include complex.h
#include math.h
int main()
{
complex z=I*M_PI*0.5;
complex th=ctanh(z);
printf(z = (%g, %g), ctanh(z) = (%g,%g)\n,
creal(z),cimag(z),creal(th),cimag(th));
return 0;
}
EOF
$gcc tanh.c -o tanh -lm
$./tanh
Please send the result for me.
In my system (glibc-2.3.6 according LFS-6.2)
the output of the program is:
z = (0, 1.5708), ctanh(z) = (nan, inf)
Which is wrong! (both with gcc-3.3.6 and gcc-4.2.2)
It should be:
z = (0, 1.5708), ctanh(z) = (0, inf)
Hi:
I am aware that Dan has already solved your problem in the meantime,
but as I went thru the motions, hereinafter my results just for the
record. As you can see, the bug is quite *old*... ;)
Richard
quote
GNU C Library stable release version 2.3.3, by Roland McGrath et al.
Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 3.2.2.
Compiled on a Linux 2.4.26 system on 2004-08-28.
Available extensions:
GNU libio by Per Bothner
crypt add-on version 2.1 by Michael Glad and others
linuxthreads-0.10 by Xavier Leroy
BIND-8.2.3-T5B
libthread_db work sponsored by Alpha Processor Inc
NIS(YP)/NIS+ NSS modules 0.19 by Thorsten Kukuk
Report bugs using the `glibcbug' script to [EMAIL PROTECTED].
gcc (GCC) 3.3.3
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-rwxr-x--- 1 rag2 users 6738 Nov 14 10:45 tanh
-rw--- 1 rag2 users 235 Nov 14 10:41 tanh.c
#include stdio.h
#include complex.h
#include math.h
int main()
{
complex z=I*M_PI*0.5;
complex th=ctanh(z);
printf(z = (%g, %g), ctanh(z) = (%g,%g)\n,
creal(z),cimag(z),creal(th),cimag(th));
return 0;
}
z = (0, 1.5708), ctanh(z) = (nan,inf)
**
GNU C Library stable release version 2.5.1, by Roland McGrath et al.
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 4.1.2.
Compiled on a Linux 2.6.12 system on 2007-11-04.
Available extensions:
crypt add-on version 2.1 by Michael Glad and others
GNU Libidn by Simon Josefsson
GNU libio by Per Bothner
NIS(YP)/NIS+ NSS modules 0.19 by Thorsten Kukuk
Native POSIX Threads Library by Ulrich Drepper et al
BIND-8.2.3-T5B
Thread-local storage support included.
For bug reporting instructions, please see:
http://www.gnu.org/software/libc/bugs.html.
gcc (GCC) 4.1.2
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#include stdio.h
#include complex.h
#include math.h
int main()
{
complex z=I*M_PI*0.5;
complex th=ctanh(z);
printf(z = (%g, %g), ctanh(z) = (%g,%g)\n,
creal(z),cimag(z),creal(th),cimag(th));
return 0;
}
-rwxr-x--- 1 root root 5838 Nov 14 11:14 tanh
-rwxr-xr-x 1 root root 235 Nov 14 11:13 tanh.c
z = (0, 1.5708), ctanh(z) = (0,1.63318e+16)
/quote
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FAQ: http://www.linuxfromscratch.org/blfs/faq.html
Unsubscribe: See the above information page
Re: Keyboard Debug messages won't go away
On Nov 13, 2007 5:32 PM, Walter Barnes [EMAIL PROTECTED] wrote: From: Dan Nicholson [EMAIL PROTECTED] FYI, init.d/consolelog is configured from /etc/sysconfig/console. You can add LOGLEVEL=1 there and not have to edit the init script. That was how I intended it and how it works on my system. Thanks, I did not notice that before. However, adding the console file to /etc/sysconfig will also activate the console init script which I don't need right now. Eventually I plan to toy around with UTF-8 but until then I'll keep the LOGLEVEL set to 3 in consolelog. Not quite. Just don't set any of the variables that the console script uses. It will continue to use the defaults it's using now. So: echo 'LOGLEVEL=1' /etc/sysconfig/console will do what you want and leave the other console settings alone. -- Dan -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
Re: libm/glibc-2.3.6 issue (was - Re: libstdc++ issue?)
Richard napisał(a): I am aware that Dan has already solved your problem in the meantime, but as I went thru the motions, hereinafter my results just for the record. As you can see, the bug is quite *old*... ;) Yes, it is. I started setup my system from LFS 6.2 in August 2006. It was the latest stable release of LFS then. I didn't need to upgrade my system till now. It is very stable. Regards, juras -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
Re: Keyboard Debug messages won't go away
From: Dan Nicholson [EMAIL PROTECTED] On Nov 13, 2007 5:32 PM, Walter Barnes [EMAIL PROTECTED] wrote: From: Dan Nicholson [EMAIL PROTECTED] FYI, init.d/consolelog is configured from /etc/sysconfig/console. You can add LOGLEVEL=1 there and not have to edit the init script. That was how I intended it and how it works on my system. Thanks, I did not notice that before. However, adding the console file to /etc/sysconfig will also activate the console init script which I don't need right now. Eventually I plan to toy around with UTF-8 but until then I'll keep the LOGLEVEL set to 3 in consolelog. Not quite. Just don't set any of the variables that the console script uses. It will continue to use the defaults it's using now. So: echo 'LOGLEVEL=1' /etc/sysconfig/console will do what you want and leave the other console settings alone. All righty then, I'll give it a shot :-) Walter Be a better pen pal. Text or chat with friends inside Yahoo! Mail. See how. http://overview.mail.yahoo.com/ -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
