On Thu, Oct 21, 2010 at 01:07:52PM -0700, Arjan van de Ven wrote:
> On request from the UMG group in Intel I've backported the linux-next  
> (2.6.37-rc1) wifi stack (using the compat-wireless backport) and the  
> linux-next MMC stack to the MeeGo kernel.
> While I think this went relatively smooth, I can't rule out a small  
> glitch or two in devel:kernel; I won't submit to Trunk:Testing until  
> I've had a chance to test these backports
> enough.

I can no longer get to my root filesystem with the MMC changes.

[    0.000000] Linux version 2.6.35.3-211.1-mid (abu...@build25) (gcc version 
4.5.0 20100414 (MeeGo 4.5.0-1) (GCC) ) #1 SMP PREEMPT Fri Oct 22 02:21:53 UTC 
2010
...
[    4.179786] sdhci: Secure Digital Host Controller Interface driver
[    4.186593] sdhci: Copyright(c) Pierre Ossman
[    4.191479] sdhci-pci 0000:00:01.0: SDHCI controller found [8086:0823] (rev 
0)
[    4.199722] sdhci-pci 0000:00:01.0: Will use DMA mode even though HW doesn't 
fully claim to support it.
[    4.210743] Registered led device: mmc0::
[    4.215639] mmc0: SDHCI controller on PCI [0000:00:01.0] using ADMA
[    4.222660] sdhci-pci 0000:00:01.1: SDHCI controller found [8086:0824] (rev 
0)
[    4.231790] sdhci-pci 0000:00:01.1: Will use DMA mode even though HW doesn't 
fully claim to support it.
[    4.243993] Registered led device: mmc1::
[    4.250000] mmc1: SDHCI controller on PCI [0000:00:01.1] using ADMA
[    4.256996] sdhci-pci 0000:00:04.0: SDHCI controller found [8086:0820] (rev 
0)
[    4.266129] sdhci-pci 0000:00:04.0: Will use DMA mode even though HW doesn't 
fully claim to support it.
[    4.278322] Registered led device: mmc2::
[    4.283358] mmc2: SDHCI controller on PCI [0000:00:04.0] using ADMA
[    4.290311] sdhci-pci 0000:00:04.1: SDHCI controller found [8086:0821] (rev 
0)
[    4.299411] sdhci-pci 0000:00:04.1: Will use DMA mode even though HW doesn't 
fully claim to support it.
[    4.311350] Registered led device: mmc3::
[    4.317255] mmc3: SDHCI controller on PCI [0000:00:04.1] using ADMA
[    4.324200] sdhci-pci 0000:00:04.2: SDHCI controller found [8086:0822] (rev 
0)
[    4.333296] sdhci-pci 0000:00:04.2: Will use DMA mode even though HW doesn't 
fully claim to support it.
[    4.345295] Registered led device: mmc4::
[    4.351145] mmc4: SDHCI controller on PCI [0000:00:04.2] using ADMA
...
[    4.412136] mmc0: error -110 whilst initialising MMC card
...
[    4.925850] mmc2: error -110 whilst initialising SD card


vs. a working kernel from Trunk


[    0.000000] Linux version 2.6.35.3-9.1-mid (abu...@build30) (gcc version 
4.5.0 20100414 (MeeGo 4.5.0-1) (GCC) ) #1 SMP PREEMPT Sat Oct 16 00:15:07 UTC 
2010
...
[    5.299818] sdhci: Secure Digital Host Controller Interface driver
[    5.306605] sdhci: Copyright(c) Pierre Ossman
[    5.311491] sdhci-pci 0000:00:01.0: SDHCI controller found [8086:0823] (rev 
0)
[    5.319792] sdhci-pci 0000:00:01.0: Will use DMA mode even though HW doesn't 
fully claim to support it.
[    5.331807] Registered led device: mmc0::
[    5.337723] mmc0: SDHCI controller on PCI [0000:00:01.0] using ADMA
[    5.344678] sdhci-pci 0000:00:01.1: SDHCI controller found [8086:0824] (rev 
0)
[    5.353783] sdhci-pci 0000:00:01.1: Will use DMA mode even though HW doesn't 
fully claim to support it.
[    5.365938] Registered led device: mmc1::
[    5.371883] mmc1: SDHCI controller on PCI [0000:00:01.1] using ADMA
[    5.378872] sdhci-pci 0000:00:04.0: SDHCI controller found [8086:0820] (rev 
0)
[    5.387979] sdhci-pci 0000:00:04.0: Will use DMA mode even though HW doesn't 
fully claim to support it.
[    5.400109] Registered led device: mmc2::
[    5.406211] mmc2: SDHCI controller on PCI [0000:00:04.0] using ADMA
[    5.413164] sdhci-pci 0000:00:04.1: SDHCI controller found [8086:0821] (rev 
0)
[    5.422326] sdhci-pci 0000:00:04.1: Will use DMA mode even though HW doesn't 
fully claim to support it.
[    5.434290] Registered led device: mmc3::
[    5.440115] mmc3: SDHCI controller on PCI [0000:00:04.1] using ADMA
[    5.447061] sdhci-pci 0000:00:04.2: SDHCI controller found [8086:0822] (rev 
0)
[    5.456164] sdhci-pci 0000:00:04.2: Will use DMA mode even though HW doesn't 
fully claim to support it.
[    5.468168] Registered led device: mmc4::
[    5.474005] mmc4: SDHCI controller on PCI [0000:00:04.2] using ADMA
...
[    5.540336] mmc0: new high speed MMC card at address 0001
[    5.547802] mmcblk0: mmc0:0001 MMC32G 29.8 GiB 
[    5.769579]  mmcblk0:
...
[    6.094650] mmc2: new SDHC card at address d1d7
[    6.101668] mmcblk1: mmc2:d1d7 SD08G 7.42 GiB (ro)
[    6.108087]  mmcblk1: p1

-- Chris
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