Re: [Nagios-devel] Some errors with SIGSEGV
Posted: Wed Mar 28, 2007 11:17 pm
Herbert Straub wrote:
> Quoting [email protected]:
>
>> Hello developers,
>> Hendrik supposed me to build the nagios source without the option '-O2'. I
>> have done this, but nothing changed. The SIGSEGV also happens in Version
>> 3.0a2 without the '-O2' option.
>> Output from gdb:
>> #0 0xb7e43e84 in mallopt () from /lib/tls/libc.so.6
>> #1 0xb7e42dcb in free () from /lib/tls/libc.so.6
>> #2 0x080774ac in my_free ()
>> #3 0x08073d4f in clear_volatile_macros ()
>> #4 0x0806c92c in log_host_event ()
>> #5 0x080706a8 in handle_host_state ()
>> #6 0x0805bfa8 in process_host_check_result_3x ()
>> #7 0x0805bc42 in handle_async_host_check_result_3x ()
>> #8 0x08057533 in reap_check_results ()
>> #9 0x0806ac7d in handle_timed_event ()
>> #10 0x0806aaea in event_execution_loop ()
>> #11 0x080554f1 in main ()
>
>
> I think this is a problem with glibc6 version (2.3.2.ds1-22sa) in
> debian sarge and the NPTL. I confirm the situation on a Debian Sarge
> machine. I got no errors with the following workaround:
>
Well, since NPTL has been discontinued, widely regarded as a mistake with
a too complex implementation, I think it would be a good idea to just
recommend people not to use it.
> export LD_ASSUME_KERNEL=2.4.15
> /usr/local/nagios/bin/nagios /usr/local/nagios/etc/nagios.cfg
>
> The /debian/FAQ from glibc6 contains the following section:
> The application should continue to run for now, but when the warning message
> is printed use of the NPTL threading library, and other new kernel-2.6
> features, it's worth trying to set environment variable LD_ASSUME_KERNEL=2.4.1
> (switch to LinuxThreads instead of NPTL).
>
Yup. I've seen the same happen for some other applications. It never became much
of an issue for those, as they had a pretty big warning in loads of places with
this solution pasted all over the place.
--
Andreas Ericsson [email protected]
OP5 AB www.op5.se
Tel: +46 8-230225 Fax: +46 8-230231
This post was automatically imported from historical nagios-devel mailing list archives
Original poster: [email protected]
> Quoting [email protected]:
>
>> Hello developers,
>> Hendrik supposed me to build the nagios source without the option '-O2'. I
>> have done this, but nothing changed. The SIGSEGV also happens in Version
>> 3.0a2 without the '-O2' option.
>> Output from gdb:
>> #0 0xb7e43e84 in mallopt () from /lib/tls/libc.so.6
>> #1 0xb7e42dcb in free () from /lib/tls/libc.so.6
>> #2 0x080774ac in my_free ()
>> #3 0x08073d4f in clear_volatile_macros ()
>> #4 0x0806c92c in log_host_event ()
>> #5 0x080706a8 in handle_host_state ()
>> #6 0x0805bfa8 in process_host_check_result_3x ()
>> #7 0x0805bc42 in handle_async_host_check_result_3x ()
>> #8 0x08057533 in reap_check_results ()
>> #9 0x0806ac7d in handle_timed_event ()
>> #10 0x0806aaea in event_execution_loop ()
>> #11 0x080554f1 in main ()
>
>
> I think this is a problem with glibc6 version (2.3.2.ds1-22sa) in
> debian sarge and the NPTL. I confirm the situation on a Debian Sarge
> machine. I got no errors with the following workaround:
>
Well, since NPTL has been discontinued, widely regarded as a mistake with
a too complex implementation, I think it would be a good idea to just
recommend people not to use it.
> export LD_ASSUME_KERNEL=2.4.15
> /usr/local/nagios/bin/nagios /usr/local/nagios/etc/nagios.cfg
>
> The /debian/FAQ from glibc6 contains the following section:
> The application should continue to run for now, but when the warning message
> is printed use of the NPTL threading library, and other new kernel-2.6
> features, it's worth trying to set environment variable LD_ASSUME_KERNEL=2.4.1
> (switch to LinuxThreads instead of NPTL).
>
Yup. I've seen the same happen for some other applications. It never became much
of an issue for those, as they had a pretty big warning in loads of places with
this solution pasted all over the place.
--
Andreas Ericsson [email protected]
OP5 AB www.op5.se
Tel: +46 8-230225 Fax: +46 8-230231
This post was automatically imported from historical nagios-devel mailing list archives
Original poster: [email protected]