linux-kernel - Re: [PATCH RESEND 1/3] printk: convert byte-buffer to variable-length record buffer

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: <CAPXgP10OW_XuPMHn=KQzaESfpNhehkUx6=hKL2dHdGytZkGmng@mail.gmail.com>
Date:	Thu, 29 Nov 2012 14:28:00 +0100
From:	Kay Sievers <kay@...y.org>
To:	mtk.manpages@...il.com
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Greg Kroah-Hartmann <greg@...ah.com>,
	Ingo Molnar <mingo@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RESEND 1/3] printk: convert byte-buffer to variable-length
 record buffer

On Thu, Nov 29, 2012 at 2:18 PM, Michael Kerrisk (man-pages)
<mtk.manpages@...il.com> wrote:
> On Wed, Nov 28, 2012 at 6:51 PM, Kay Sievers <kay@...y.org> wrote:

>> Before:
>>   syslog(SYSLOG_ACTION_SIZE_UNREAD, 0, 0) = 286965
>>   syslog(SYSLOG_ACTION_READ_CLEAR, "<12>"..., 1000000) = 24000
>>   syslog(SYSLOG_ACTION_SIZE_UNREAD, 0, 0) = 286965
>>
>> After:
>>   syslog(SYSLOG_ACTION_SIZE_UNREAD, 0, 0) = 90402
>>   syslog(SYSLOG_ACTION_READ_CLEAR, "<5>"..., 1000000) = 90402
>>   syslog(SYSLOG_ACTION_SIZE_UNREAD, 0, 0) = 0

> I'm going to call my report yesterday bogus. Somewhere along the way,
> I got confused while testing something, and my statement about 2.6.31
> behavior is wrong: the 2.6.31 and 3.5 behaviors are the same. As such,
> your patch is unneeded. Sorry for wasting your time.

I think you have been right with your report. The above pasted
before/after from the patch commit text is actually a result of real
testing with current git. And your initial description sounds right,
and the patch seems to produce the expected results here. I just
confused the numbers in your report and wrongly parsed 2.6 > 3.6.

Hmm, at least do far we did not blame anybody else than ourselves as
confused. One of us at least is right, and it looks you have been, and
I also think the patch is at least intended to be right. :)

Kay
--
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/