linux-kernel - Re: [PATCH] WARN(): add a \n to the message printk

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 15 Jun 2009 09:38:24 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Arjan van de Ven <arjan@...radead.org>
cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] WARN(): add a \n to the message printk

On Mon, 15 Jun 2009, Arjan van de Ven wrote:
>  
> -	if (args)
> +	if (args) {
>  		vprintk(args->fmt, args->args);
> +		printk("\n");
> +	}

I really don't like this. What if the format already does have a '\n'? And 
what if some other CPU is printing at the same time?

I'd almost be open to adding a "flags" field to vprintk, and allow setting 
things like "finish line with \n" there. Or perhaps even better, have a 
"vprintk_line()" function that does it with no dynamic flags. Maybe make 
it static, and move all these panic helper funtions into kernel/printk.c 
(since this really is a special case).	

I dunno. I'm just throwing out suggestions. I just don't think the above 
patch is very nice.

		Linus
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/