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] [day] [month] [year] [list]
Date:	Tue, 6 Nov 2012 14:52:20 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
Cc:	Tony Luck <tony.luck@...el.com>, Andi Kleen <andi.kleen@...el.com>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Ingo Molnar <mingo@...e.hu>,
	"Jun'ichi Nomura" <j-nomura@...jp.nec.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Jan Kara <jack@...e.cz>
Subject: Re: [PATCH 2/2 v2] mm: print out information of file affected by
 memory error

On Tue,  6 Nov 2012 17:45:05 -0500
Naoya Horiguchi <n-horiguchi@...jp.nec.com> wrote:

> > "should be" and "unlikely" aren't very reassuring things to hear! 
> > Emitting a million lines into syslog is pretty poor behaviour and
> > should be reliably avoided.
> 
> So capping maximum lines of messages per some duration (a hour or a day)
> is a possible option. BTW, even if we don't apply this patch, the kernel
> can emit million lines of messages in the above-mentioned situation because
> each memory error event emits a message like "MCE 0x3f57f4: dirty LRU page
> recovery: Ignored" on syslog. If it's also bad, we need to do capping
> also over existing printk()s, right?

Yes, that sounds like a bug report waiting to happen.
--
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/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ