linux-kernel - Re: [RFC] sdhci: fix DMA leaks [was: [SHDCI] Heavy (thousands) DMA leaks]

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: <55DB45B8.3020106@redhat.com>
Date:	Mon, 24 Aug 2015 09:26:32 -0700
From:	Laura Abbott <labbott@...hat.com>
To:	Chen Bough <Haibo.Chen@...escale.com>, Jiri Slaby <jslaby@...e.cz>,
	Ulf Hansson <ulf.hansson@...aro.org>
Cc:	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	Linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] sdhci: fix DMA leaks [was: [SHDCI] Heavy (thousands) DMA
 leaks]

On 08/06/2015 02:17 AM, Chen Bough wrote:
> I will format a patch based on your diff file firstly. I will test this on my side,
> If any issue, like dma issue or performance issue, I will add some modification.
> Then I will send the patch for review, and you can test the patch on your platform.
>
> Best Regards
> Haibo Chen
>

Did I miss the follow up patch or is this still pending? If it's still pending,
would you mind Ccing me when it's available for testing?

Thanks,
Laura
  
>
>> -----Original Message-----
>> From: Jiri Slaby [mailto:jslaby@...e.cz]
>> Sent: Thursday, August 06, 2015 5:07 PM
>> To: Chen Haibo-B51421; Ulf Hansson
>> Cc: linux-mmc@...r.kernel.org; Linux kernel mailing list
>> Subject: Re: [RFC] sdhci: fix DMA leaks [was: [SHDCI] Heavy (thousands)
>> DMA leaks]
>>
>> On 08/06/2015, 09:42 AM, Chen Bough wrote:
>>> I read your attached log and patch, yes, dma memory leak will happen
>>> when more than one pre_request execute. The method of ++next->cookie
>>> is not good, your patch seems good, but I still need some time to test
>>> the patch, because you unmap the dma in sdhci_finish_data rather than
>> the sdhci_post_req.
>>
>> Hi,
>>
>> yes, this is not correct. We can perhaps differentiate according to the
>> COOKIE value. Should I fix it or are you going to prepare a patch based
>> on my RFC?
>>
>> thanks,
>> --
>> js
>> suse labs

--
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/