From: ben-linux@fluff.org (Ben Dooks)
To: linux-arm-kernel@lists.infradead.org
Subject: S3C6410 SDHCI driver crash
Date: Thu, 24 Sep 2009 20:00:02 +0100 [thread overview]
Message-ID: <20090924190002.GG31920@trinity.fluff.org> (raw)
In-Reply-To: <4ABB9115.4030609@gmail.com>
On Thu, Sep 24, 2009 at 05:32:37PM +0200, Maurus Cuelenaere wrote:
> Hi,
>
> I'm currently experiencing an SDHCI bug in 2.6.31 and linux-next, which
> didn't
> seem to appear in 2.6.31-rc8.
>
> This is on a new S3C6410 platform (SmartQ 7, see [1]) and it seems to be
> consistently happening right after displaying "Loading hardware drivers" (in
> user-space; Ubuntu-based).
>
> The relevant kernel log lines are:
>
> blk: request botched
> kernel BUG at drivers/mmc/host/sdhci.c:298!
Having a look at the code in mainline, this is being triggered in
sdhci_write_block_pio(), by the following code:
296 while (blksize) {
297 if (!sg_miter_next(&host->sg_miter))
298 BUG();
Which suggests that the size of the transfer was bigger than the sg list
passed to the transfer, which is worrying as this seems to suggest there
is a problem with the PIO code writing insufficient data to the card.
--
Ben
Q: What's a light-year?
A: One-third less calories than a regular year.
next prev parent reply other threads:[~2009-09-24 19:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-24 15:32 S3C6410 SDHCI driver crash Maurus Cuelenaere
2009-09-24 19:00 ` Ben Dooks [this message]
2009-09-28 18:06 ` Maurus Cuelenaere
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=20090924190002.GG31920@trinity.fluff.org \
--to=ben-linux@fluff.org \
--cc=linux-arm-kernel@lists.infradead.org \
/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;
as well as URLs for NNTP newsgroup(s).