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
Attachment:
mmc-oops
Description: Binary data
