kernel 2.6.38.6 MMC controller problem (fwd)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



(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
--
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


[Index of Archives]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux