linux-kernel - Re: Problem: Out of memory after 2days with 2GB RAM

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Message-ID: <1ba2fa240806121526g2ed0c7u733d5620cb790eb6@mail.gmail.com>
Date:	Fri, 13 Jun 2008 01:26:58 +0300
From:	"Tomas Winkler" <tomasw@...il.com>
To:	"Jiri Slaby" <jirislaby@...il.com>
Cc:	"Johannes Berg" <johannes@...solutions.net>,
	"Rik van Riel" <riel@...hat.com>,
	"Zdenek Kabelac" <zdenek.kabelac@...il.com>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	yi.zhu@...el.com, reinette.chatre@...el.com,
	linux-wireless@...r.kernel.org
Subject: Re: Problem: Out of memory after 2days with 2GB RAM

On Fri, Jun 13, 2008 at 12:30 AM, Jiri Slaby <jirislaby@...il.com> wrote:
> On 06/12/2008 05:43 PM, Tomas Winkler wrote:
>>
>> On Thu, Jun 12, 2008 at 4:54 PM, Johannes Berg
>> <johannes@...solutions.net> wrote:
>>>
>>> This cuts the allocation to 10%, or (under) a page in all cases.
>>
>> Probably. it would be safe to use vmalloc for allocating txb anyway.
>> I'll give it a try.
>
> Why it wouldn't be "safe". I suggested it to you already, since allocating
> 64k by kmalloc for descriptors accessed only in kernel is crud. Moreover
> you're mixing the buffer with its descriptors here? Or what you're
> considering to vmalloc?
>
Not that. I just wasn't sure when I dropped the line  I'm not doing it
under some spinlock or something like that.
Tomas
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