Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 14 Feb 2003 04:35:12 +1100 (EST)
From:      Bruce Evans <bde@zeta.org.au>
To:        Aurelien Nephtali <aurelien.nephtali@wanadoo.fr>
Cc:        Peter Wemm <peter@FreeBSD.org>, <src-committers@FreeBSD.org>, <cvs-src@FreeBSD.org>, <cvs-all@FreeBSD.org>
Subject:   Re: cvs commit: src/sys/kern kern_shutdown.c
Message-ID:  <20030214041205.X4349-100000@gamplex.bde.org>
In-Reply-To: <20030213125204.GA12333@nebula.wanadoo.fr>

next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, 13 Feb 2003, Aurelien Nephtali wrote:

> It could be good now to log the backtrace :/
> When one occurs it goes nowhere so if you cannot copy it on the moment, it is
> lost forever (without talking about stopping the console and using Page UP and
> Page Down). Only the LOR is logged + 'Stack backtrace:'.

db_print_backtrace() never really worked, since ddb uses db_printf() but
ordinary printf() should be used (except when db_print_backtrace() is
actually from within ddb).

Workaround: use a serial console.

I think the correct fix is to replace db_printf() by printf().  printf() can
decide what to do more easily than callers of *printf() can (by checking
db_active).  This would also avoid the once common error of calling printf()
instead of db_printf() from ddb commands, and make printf() work right when
it is called from functions that are called from within ddb using ddb's
call command (printf() should act like db_printf() then).

Bruce


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe cvs-all" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030214041205.X4349-100000>