Re: [PATCH] kernel 2.4.19 & 2.5.38 - coredump sysctl

[Andrew Morton]

Bill Davidsen wrote:
> 
> On Fri, 20 Sep 2002, Andrew Morton wrote:
> 
> > That seems a reasonable thing to want to do.
> >
> > > ...
> > > The following format options are available in that string:
> > >
> > >        %P   The Process ID (current->pid)
> > >        %U   The UID of the process (current->uid)
> > >        %N   The command name of the process (current->comm)
> > >        %H   The nodename of the system (system_utsname.nodename)
> > >        %%   A "%"
> > >
> > > For example, in my clusters, I have an NFS R/W mount at /coredumps
> > > that all nodes have access to. The format string I use is:
> > >
> > >         sysctl -w "kernel.core_name_format=/coredumps/%H-%N-%P.core"
> > >
> >
> > Does it need to be this fancy?  Why not just have:
> >
> >         if (core_name_format is unset)
> >                 use "core"
> >         else
> >                 use core_name_format/nodename-uid-pid-comm.core
> 
> Because this way you can do more things with where you put your dumps,
> such as using one element of this flexible method to select a directory,
> where the dump directories for various applications would be on a single
> NFS server, and dumps for another might be on another server, or all dumps
> of a certain kind could share a filename, where only the latest dump would
> be of interest (or take space).

OK, I'll buy that one.