On Thu, Feb 25, 2010 at 04:26:22PM -0600, Peter Steele wrote:
We'll likely go with this solution instead of downgrading Python and the
related libraries.
In fact I came up with another solution. I realized that since the problem
was related to the process signal mask, instead of called
So this is arguably a Python bug. Did you contacted anybody who cares about
the Python ?
I did not, mainly because this link:
http://bugs.python.org/msg61870
seems to imply they are already aware of the problem. I agree it must be a
Python bug though. It worked in 2.5.1 but not in 2.5.5 and
On Wed, 24 Feb 2010 15:56:35 -0600
Peter Steele pste...@maxiscale.com wrote:
How do I get libc built with full debug symbols?
I haven't tried it by myself but think here is the way to go: put the
following to /etc/make.conf and recompile needed
libraries / ports. WITH_DEBUG=yes
On Wed, Feb 24, 2010 at 03:56:35PM -0600, Peter Steele wrote:
How do I get libc built with full debug symbols?
I haven't tried it by myself but think here is the way to go: put the
following to /etc/make.conf and recompile needed libraries / ports.
WITH_DEBUG=yes
DEBUG_FLAGS=-g
That
Alexey Shuvaev shuv...@physik.uni-wuerzburg.de writes:
The flag you should look at is '-g'. GCC supports debuggind symbols
together with -O2 optimizations.
It is generally not a good idea to use -O2 for debugging versions, since
gcc will optimize away many local variables.
DES
--
Dag-Erling
I think problem not in ntpd, since I use ntpdate. And in 50% times, when it
run from startup script, it hangs with kernel.
No Ctrl+C work, kernel don`t answer for ping, just freeze.
Problem somewhere in kernel, maybe in subsystems that set new time, maybe in
network(UDP) parts.
This problem
On Thu, Feb 25, 2010 at 08:12:05AM -0600, Peter Steele wrote:
I think problem not in ntpd, since I use ntpdate. And in 50% times, when it
run from startup script, it hangs with kernel.
No Ctrl+C work, kernel don`t answer for ping, just freeze.
Problem somewhere in kernel, maybe in subsystems
Very wild guess, check the process signal mask of the child for both methods
of spawning.
I'm running ntpd through Python. How do I check the process signal mask? I did
some quick searches and it seems Python does not support sigprocmask().
In my searches I came across this link:
On Thu, Feb 25, 2010 at 09:57:48AM -0600, Peter Steele wrote:
Very wild guess, check the process signal mask of the child for both methods
of spawning.
I'm running ntpd through Python. How do I check the process signal mask? I
did some quick searches and it seems Python does not support
We'll likely go with this solution instead of downgrading Python and the
related libraries.
In fact I came up with another solution. I realized that since the problem was
related to the process signal mask, instead of called ntpd directly, wrap it up
in a C app that resets the signal mask to
You're going to need a debug version of libc, too. gdb won't be able to find
a backtrace out of a libc function without it.
What's the proper way to build a debug version of libc and the other libraries?
I tried this:
export CFLAGS=-O0
make buildworld
make installworld DESTDIR=/mydir
and
On Wed, Feb 24, 2010 at 12:17:50PM -0600, Peter Steele wrote:
You're going to need a debug version of libc, too.
gdb won't be able to find a backtrace out of a libc function without it.
What's the proper way to build a debug version of libc and the other
libraries? I tried this:
export
On Wednesday 24 February 2010 1:17:50 pm Peter Steele wrote:
You're going to need a debug version of libc, too. gdb won't be able to
find a backtrace out of a libc function without it.
What's the proper way to build a debug version of libc and the other
libraries? I tried this:
You can
What's the proper way to build a debug version of libc and the other
libraries? I tried this:
You can just do this:
cd /usr/src/lib/libc
make clean
make DEBUG_FLAGS=-g
make install
When I tried this the make actually failed with various errors. So I decided to
do a full make buildworld
How do I get libc built with full debug symbols?
I haven't tried it by myself but think here is the way to go: put the
following to /etc/make.conf and recompile needed libraries / ports.
WITH_DEBUG=yes
DEBUG_FLAGS=-g
That didn't seem to have any effect. I still see -O2 being used instead of
On Wed, Feb 24, 2010 at 03:17:25PM -0500, John Baldwin wrote:
On Wednesday 24 February 2010 1:17:50 pm Peter Steele wrote:
You're going to need a debug version of libc, too. gdb won't be able to
find a backtrace out of a libc function without it.
What's the proper way to build a debug
On Mon, 22 Feb 2010, Peter Steele wrote:
Just out of curiosity, can you attach to the process via gdb and get a
backtrace? This smells like a locked pthread_join I hit in my own code
a few weeks ago
I'm not using the debug version of ntpd so the backtrace isn't too
useful, but here's what I
On Wednesday 24 February 2010 5:09:47 pm Kostik Belousov wrote:
On Wed, Feb 24, 2010 at 03:17:25PM -0500, John Baldwin wrote:
On Wednesday 24 February 2010 1:17:50 pm Peter Steele wrote:
You're going to need a debug version of libc, too. gdb won't be able to
find a backtrace out of a
I bet ntpd doesn't call select() in all that many places. Instead of going to
all this trouble to build a debugging libc, you could just
grep for select() and place breakpoints on all occurrences. (It might also be
obvious from looking at them which one is the offender.)
I just checked--there
make install should be done with DEBUG_FLAGS containing -g too, otherwise
strip(1) is called on the installed binary.
Doh, yes.
I did not do this; that's likely my problem. Thanks.
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Just out of curiosity, can you attach to the process via gdb and get a
backtrace? This smells like a locked pthread_join I hit in my own code a few
weeks ago
I'm not using the debug version of ntpd so the backtrace isn't too useful, but
here's what I get:
(gdb) bt
#0 0x000800d52bfc in
You're going to need a debug version of libc, too. gdb won't be able
to find a backtrace out of a libc function without it.
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You're going to need a debug version of libc, too. gdb won't be able to find
a backtrace out of a libc function without it.
Yeah, you're right. This is definitely an annoying bug...
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On Fri, 19 Feb 2010, Peter Steele wrote:
I posted this originally on the -questions list but did not make any headway.
We have an application where the user can change the date/time via a GUI. One
of the options the user has is to specify that the time is to be synced using
ntp. Our
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