"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
