From: e9hack <e9hack@googlemail.com>
To: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: linux-media@vger.kernel.org
Subject: Re: bug in changeset 13239:54535665f94b ?
Date: Sat, 07 Nov 2009 19:35:08 +0100 [thread overview]
Message-ID: <4AF5BDDC.4010608@googlemail.com> (raw)
In-Reply-To: <4AF57E8E.5070109@googlemail.com>
e9hack schrieb:
>> I agree. We need first to stop DMA activity, and then release the page tables.
>>
>> Could you please test if the enclosed patch fixes the issue?
>
> your patch doesn't solve the problem, because saa7146_dma_free() doesn't stop a running
> dma transfer of the saa7146.
Sorry, that was wrong. I did only look, if my additional messages were print or not, but I
didn't wait for the memory corruption, because it may corrupt the file system. With your
patch, I get the messages, but the protection address is set to 0, which disables the dma
transfer even if the dma transfer is enabled within the MC1 register.
Regards,
Hartmut
next prev parent reply other threads:[~2009-11-07 18:35 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-01 15:59 bug in changeset 13239:54535665f94b ? e9hack
2009-11-02 20:27 ` e9hack
2009-11-07 12:41 ` Mauro Carvalho Chehab
2009-11-07 14:05 ` e9hack
2009-11-07 14:49 ` Mauro Carvalho Chehab
2009-11-07 16:00 ` e9hack
2009-11-07 18:35 ` e9hack [this message]
2009-11-08 20:48 ` Johann Friedrichs
2009-11-19 21:02 ` e9hack
2009-11-19 21:15 ` e9hack
2009-11-23 19:29 ` Mauro Carvalho Chehab
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4AF5BDDC.4010608@googlemail.com \
--to=e9hack@googlemail.com \
--cc=linux-media@vger.kernel.org \
--cc=mchehab@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox