Re: [Kgdb-bugreport] [KGDB PATCH][1/7] Add / use kernel/Kconfig.kgdb

Pavel Machek
2004-02-27T23:51:13Z

Hi!

> >+config KGDB_THREAD
> >+ bool "KGDB: Thread analysis"
> >+ depends on KGDB
> >+ help
> >+ With thread analysis enabled, gdb can talk to kgdb stub to list
> >+ threads and to get stack trace for a thread. This option also
> >enables
> >+ some code which helps gdb get exact status of thread. Thread
> >analysis
> >+ adds some overhead to schedule and down functions. You can disable
> >+ this option if you do not want to compromise on speed.
>
> Lets remove the overhead and eliminate the need for this option in favor of
> always having threads. Works in the mm kgdb...

No. Thread analysis is unsuitable for the mainline (manipulates
sched.c in ugly way). It may be okay for -mm, but in such case it
should better be separated.
Pavel
--
When do you have a heart between your knees?
[Johanka's followup: and *two* hearts?]