[CentOS] Re: Reboots -- lsof and SIGHUP, a combination to know ...

[Ralph Angenendt]

Bryan J. Smith <b.j.smith at ieee.org> wrote:
> From: Simon Perreault <nomis80 at lqt.ca>
> > Sure, theoretically it would be possible, but how would you restart this one?
> > [nomis80 at poste10-153 ~]$ sudo lsof | grep libc | grep init
> > init          1    root  mem       REG      253,0  1521500     999437 /lib/tls/libc-2.3.5.so
> 
> I need to verify the post-install script for the glibc RPM, but
> I believe it SIGHUPs the process -- and SIGHUP tells GLibC to
> reload itself for all new calls from any new process, while
> leaving the old code available for running processes.

If you can read binary :)

The script section of the glibc RPM is a very simple one:

[angenenr at shutdown dict]$rpm -q --scripts glibc
postinstall program: /usr/sbin/glibc_post_upgrade.i686
postuninstall program: /sbin/ldconfig

And I cannot find Documentation for glibc_post_upgrade at the moment, a
"strings" on that binary doesn't really help either.

Ralph
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