Re: kernel 2.6.38.6 MMC controller problem (fwd)

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On Mon, 16 May 2011, Jaehoon Chung wrote:

> Hi..
> 
> i found the similar case. So i wonder how i can resolve that..
> But i didn't find the solution and i didn't know what problem..

What MMC host driver? Anything in dmesg?

Thanks
Guennadi

> 
> i want to know that solution..
> 
> ->first card inserted (correct card detect)
> # mmc1: new SDHC card at address e624
> mmcblk1: mmc1:e624 SU04G 3.69 GiB
> mmcblk1: p1
> #
> # mmc1: card e624 removed
> -> second card inserted
> mmc1: error -110 whilst initialising SD card
> mmc1: Card removed during transfer!
> mmc1: Resetting controller.
> -> third card inserted 
> mmc1: new SDHC card at address e624
> mmcblk1: mmc1:e624 SU04G 3.69 GiB
>   mmcblk1: p1
> 
> Regards,
> Jaehoon Chung
> 
> Guennadi Liakhovetski wrote:
> > "divide error"???... hmmm, maybe one of SDHCI maintainers has to look at 
> > it?:)
> > 
> > Thanks
> > Guennadi
> > 
> > On Mon, 16 May 2011, David Strobach wrote:
> > 
> >> It's actually an oops. The backtrace is attached.
> >>
> >> David
> >>
> >> On Mon, May 16, 2011 at 09:06, Guennadi Liakhovetski
> >> <g.liakhovetski@xxxxxx>wrote:
> >>
> >>> (added the ML and previous discussion participants to CC)
> >>>
> >>> Looks like my patch was indeed less obviious, than we thought. We need a
> >>> lock-up backtrace, I guess. David, can you use a sysrq to get a trace?
> >>> Something like
> >>>
> >>> echo w > /proc/sysrq-trigger
> >>> or even
> >>> echo t > /proc/sysrq-trigger
> >>>
> >>> and provide traces? The one with 't' will be probably huge, so, maybe you
> >>> could do it with as few tasks running as possible, maybe without a
> >>> graphical login. Or I would have to test it with my Laptop, to which I'll
> >>> get access tomorrow.
> >>>
> >>> Thanks
> >>> Guennadi
> >>> ---
> >>> Guennadi Liakhovetski, Ph.D.
> >>> Freelance Open-Source Software Developer
> >>> http://www.open-technology.de/
> >>>
> >>> ---------- Forwarded message ----------
> >>> Date: Mon, 16 May 2011 01:57:04 +0200
> >>> From: David Strobach <lalochcz@xxxxxxxxx>
> >>> To: gregkh@xxxxxxx, g.liakhovetski@xxxxxx
> >>> Cc: horms@xxxxxxxxxxxx, damm@xxxxxxxxxxxxx
> >>> Subject: kernel 2.6.38.6 MMC controller problem
> >>>
> >>> Hello,
> >>>
> >>> I found (by bisection), that the commit 3fe962c (
> >>>
> >>> http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.38.y.git;a=commit;h=3fe962c04818a4634255beb3be9f236d36350543
> >>> )
> >>> introduced regression in MMC card detection. The card is either not
> >>> detected
> >>> or causes the system to hang. There is related forum thread at
> >>> https://bbs.archlinux.org/viewtopic.php?id=118751. Relevant part of my own
> >>> log follows:
> >>>
> >>> May 16 00:15:13 localhost kernel: [  134.670685] mmc0: new SD card at
> >>> address aaaa
> >>> May 16 00:15:23 localhost kernel: [  144.715115] mmc0: Timeout waiting for
> >>> hardware interrupt.
> >>> May 16 00:15:23 localhost kernel: [  144.715119] sdhci: ===========
> >>> REGISTER
> >>> DUMP (mmc0)===========
> >>> May 16 00:15:23 localhost kernel: [  144.715126] sdhci: Sys addr:
> >>> 0xbae85840
> >>> | Version:  0x00000400
> >>> May 16 00:15:23 localhost kernel: [  144.715133] sdhci: Blk size:
> >>> 0x00007040
> >>> | Blk cnt:  0x00000001
> >>> May 16 00:15:23 localhost kernel: [  144.715140] sdhci: Argument:
> >>> 0x00000200
> >>> | Trn mode: 0x00000013
> >>> May 16 00:15:23 localhost kernel: [  144.715146] sdhci: Present:
> >>>  0x01ff0001
> >>> | Host ctl: 0x00000003
> >>> May 16 00:15:23 localhost kernel: [  144.715153] sdhci: Power:
> >>>  0x0000000f
> >>> | Blk gap:  0x00000000
> >>> May 16 00:15:23 localhost kernel: [  144.715159] sdhci: Wake-up:
> >>>  0x00000000
> >>> | Clock:    0x00000100
> >>> May 16 00:15:23 localhost kernel: [  144.715166] sdhci: Timeout:
> >>>  0x00000009
> >>> | Int stat: 0x00000000
> >>> May 16 00:15:23 localhost kernel: [  144.715172] sdhci: Int enab:
> >>> 0x02ff00cb
> >>> | Sig enab: 0x02ff00cb
> >>> May 16 00:15:23 localhost kernel: [  144.715178] sdhci: AC12 err:
> >>> 0x00000000
> >>> | Slot int: 0x00000000
> >>> May 16 00:15:23 localhost kernel: [  144.715185] sdhci: Caps:
> >>> 0x01e032b2
> >>> | Caps_1:   0x00000000
> >>> May 16 00:15:23 localhost kernel: [  144.715192] sdhci: Cmd:
> >>>  0x0000101a
> >>> | Max curr: 0x00000040
> >>> May 16 00:15:23 localhost kernel: [  144.715194] sdhci:
> >>> ===========================================
> >>> May 16 00:15:31 localhost kernel: [  152.604505] mmc0: Card removed during
> >>> transfer!
> >>> May 16 00:15:31 localhost kernel: [  152.604511] mmc0: Resetting
> >>> controller.
> >>> May 16 00:15:31 localhost kernel: [  152.604568] mmcblk0: unable to set
> >>> block size to 512: -123
> >>> May 16 00:15:31 localhost kernel: [  152.604687] mmcblk: probe of mmc0:aaaa
> >>> failed with error -22
> >>> May 16 00:15:31 localhost kernel: [  152.801534] mmc0: card aaaa removed
> >>> May 16 00:15:31 localhost kernel: [  152.814827] mmc0: Got command
> >>> interrupt
> >>> 0x00030000 even though no command operation was in progress.
> >>> May 16 00:15:31 localhost kernel: [  152.814835] sdhci: ===========
> >>> REGISTER
> >>> DUMP (mmc0)===========
> >>> May 16 00:15:31 localhost kernel: [  152.814844] sdhci: Sys addr:
> >>> 0xbae85840
> >>> | Version:  0x00000400
> >>> May 16 00:15:31 localhost kernel: [  152.814853] sdhci: Blk size:
> >>> 0x00007040
> >>> | Blk cnt:  0x00000001
> >>> May 16 00:15:31 localhost kernel: [  152.814860] sdhci: Argument:
> >>> 0x00000200
> >>> | Trn mode: 0x00000013
> >>> May 16 00:15:31 localhost kernel: [  152.814867] sdhci: Present:
> >>>  0x01f00001
> >>> | Host ctl: 0x00000000
> >>> May 16 00:15:31 localhost kernel: [  152.814874] sdhci: Power:
> >>>  0x0000000f
> >>> | Blk gap:  0x00000000
> >>> May 16 00:15:31 localhost kernel: [  152.814881] sdhci: Wake-up:
> >>>  0x00000000
> >>> | Clock:    0x00004007
> >>> May 16 00:15:31 localhost kernel: [  152.814888] sdhci: Timeout:
> >>>  0x00000009
> >>> | Int stat: 0x00000000
> >>> May 16 00:15:31 localhost kernel: [  152.814895] sdhci: Int enab:
> >>> 0x00ff00c3
> >>> | Sig enab: 0x00ff00c3
> >>> May 16 00:15:31 localhost kernel: [  152.814902] sdhci: AC12 err:
> >>> 0x00000000
> >>> | Slot int: 0x00000000
> >>> May 16 00:15:31 localhost kernel: [  152.814909] sdhci: Caps:
> >>> 0x01e032b2
> >>> | Caps_1:   0x00000000
> >>> May 16 00:15:31 localhost kernel: [  152.814916] sdhci: Cmd:
> >>>  0x0000101a
> >>> | Max curr: 0x00000040
> >>> May 16 00:15:31 localhost kernel: [  152.814919] sdhci:
> >>> ===========================================
> >>>
> >>>
> >>> Regards
> >>> David Strobach
> >>>
> > 
> > ---
> > Guennadi Liakhovetski, Ph.D.
> > Freelance Open-Source Software Developer
> > http://www.open-technology.de/
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
> > the body of a message to majordomo@xxxxxxxxxxxxxxx
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> > 
> 

---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
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