linux-kernel - Re: [BUGFIX] NULL pointer dereference in __vm_enough

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-next>] [day] [month] [year] [list]

Message-ID: <20070812122746.GA10109@mail.ustc.edu.cn>
Date:	Sun, 12 Aug 2007 20:27:46 +0800
From:	WU Fengguang <wfg@...l.ustc.edu.cn>
To:	Balbir Singh <balbir@...ux.vnet.ibm.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [BUGFIX] NULL pointer dereference in __vm_enough_memory()

Hi Balbir,

[add CC to LKML]

On Sun, Aug 12, 2007 at 05:27:52PM +0530, Balbir Singh wrote:
> For some reason my mailer keeps removing you from the cc.

Or maybe it's my SMTP server's problem. Email systems are complex.

> >>> Thats a valid point. It would be interesting to see what the overcommit
> >>> setting was, when the panic occurred.
> >> FYI, I do have nondefault overcommit settings:
> >>
> >> vm.overcommit_memory = 2
> >> vm.lowmem_reserve_ratio = 1 1
> > 
> > Yes, the bug disappears when changing to default overcommit_memory!
> > 
> 
> Great! So the problem might have existed for some time, but we never
> saw it due to default over commit values? Were you using these values
> for over commit even before?

No I changed it several weeks ago to stop my desktop from freezing.
So yes, the bug may have been there for a while.

-
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/