linux-kernel - Re: [PATCH] hvc_console: fix dropping of characters when output byte channel is full

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]

Message-ID: <20100914204410.71942cdc@lxorguk.ukuu.org.uk>
Date:	Tue, 14 Sep 2010 20:44:10 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Timur Tabi <timur@...escale.com>, linuxppc-dev@...abs.org,
	linux-kernel@...r.kernel.org, benh@...nel.crashing.org,
	kumar.gala@...escale.com, amit.shah@...hat.com
Subject: Re: [PATCH] hvc_console: fix dropping of characters when output
 byte channel is full

> Yes, hvc_push() reschedules.  It doesn't sit in a tight loop burning
> electrons!
> 
> Can we do something safer&smarter here?


Its a printk handler - better to lose the bytes than hang the box. I
think the current code is probably right.
--
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/