N810: external mmc died?

N810: external mmc died?

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I was working on moving Debian's root from internal mmc (because it still 
doesn't work with linux-omap) to external mmc, running standard Maemo and 
connected by USB to the MMC cards (with the cards mounted), when suddenly the 
N810 reset.  I have no idea why, but now external MMC does not work.

I have been using this card for a while and have not had any problems with it; 
it surely can also be considered still nearly 'new'.

I reflashed Maemo with the latest RX-44_DIABLO_5.2008.43-7_PR_COMBINED_MR0_ARM 
(and checked md5sum) and now I get the following from dmesg with either an open 
or close of the external MMC slot.

[ 2292.843750] menelaus 1-0072: Setting voltage 'VMMC' to 3100 mV (reg 0x0a, val 0xf8)
[ 2292.953125] menelaus 1-0072: Setting voltage 'VMMC' to 3000 mV (reg 0x0a, val 0xb8)
[ 2295.320312] menelaus 1-0072: Shutting off 'VMMC'

No device ever shows up in /dev, only mmcblk0 (the internal MMC).  When I 
connect by USB to the MMC cards, I see in the logs on my Debian system:

kernel: scsi 43:0:0:0: Direct-Access     Nokia    N810              031 PQ: 0 ANSI: 2
kernel: scsi 43:0:0:1: Direct-Access     Nokia    N810              031 PQ: 0 ANSI: 2
kernel: sd 43:0:0:0: [sdb] 3932160 512-byte hardware sectors: (2.01 GB/1.87 GiB)
kernel: sd 43:0:0:0: [sdb] Write Protect is off
kernel: sd 43:0:0:0: [sdb] Mode Sense: 0f 00 00 00
kernel: sd 43:0:0:0: [sdb] Assuming drive cache: write through
kernel: sd 43:0:0:0: [sdb] 3932160 512-byte hardware sectors: (2.01 GB/1.87 GiB)
kernel: sd 43:0:0:0: [sdb] Write Protect is off
kernel: sd 43:0:0:0: [sdb] Mode Sense: 0f 00 00 00
kernel: sd 43:0:0:0: [sdb] Assuming drive cache: write through
kernel: sdb: sdb1
kernel: sd 43:0:0:0: [sdb] Attached SCSI removable disk
kernel: sd 43:0:0:0: Attached scsi generic sg1 type 0
kernel: sd 43:0:0:1: [sdc] Attached SCSI removable disk
kernel: sd 43:0:0:1: Attached scsi generic sg2 type 0

No information about the external MMC.

Thanks for any hints.

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Re: N810: external mmc died?

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I'll try again, the message was botched up somehow with ^M everywhere...


I was working on moving Debian's root from internal mmc (because it still 
doesn't work with linux-omap) to external mmc, running standard Maemo and 
connected by USB to the MMC cards (with the cards mounted), when suddenly the 
N810 reset.  I have no idea why, but now external MMC does not work.

I have been using this card for a while and have not had any problems with it; 
it surely can also be considered still nearly 'new'.

I reflashed Maemo with the latest RX-44_DIABLO_5.2008.43-7_PR_COMBINED_MR0_ARM 
(and checked md5sum) and now I get the following from dmesg with either an open 
or close of the external MMC slot.

[ 2292.843750] menelaus 1-0072: Setting voltage 'VMMC' to 3100 mV (reg 0x0a, val 0xf8)
[ 2292.953125] menelaus 1-0072: Setting voltage 'VMMC' to 3000 mV (reg 0x0a, val 0xb8)
[ 2295.320312] menelaus 1-0072: Shutting off 'VMMC'

No device ever shows up in /dev, only mmcblk0 (the internal MMC).  When I 
connect by USB to the MMC cards, I see in the logs on my Debian system:

kernel: scsi 43:0:0:0: Direct-Access     Nokia    N810              031 PQ: 0 ANSI: 2
kernel: scsi 43:0:0:1: Direct-Access     Nokia    N810              031 PQ: 0 ANSI: 2
kernel: sd 43:0:0:0: [sdb] 3932160 512-byte hardware sectors: (2.01 GB/1.87 GiB)
kernel: sd 43:0:0:0: [sdb] Write Protect is off
kernel: sd 43:0:0:0: [sdb] Mode Sense: 0f 00 00 00
kernel: sd 43:0:0:0: [sdb] Assuming drive cache: write through
kernel: sd 43:0:0:0: [sdb] 3932160 512-byte hardware sectors: (2.01 GB/1.87 GiB)
kernel: sd 43:0:0:0: [sdb] Write Protect is off
kernel: sd 43:0:0:0: [sdb] Mode Sense: 0f 00 00 00
kernel: sd 43:0:0:0: [sdb] Assuming drive cache: write through
kernel: sdb: sdb1
kernel: sd 43:0:0:0: [sdb] Attached SCSI removable disk
kernel: sd 43:0:0:0: Attached scsi generic sg1 type 0
kernel: sd 43:0:0:1: [sdc] Attached SCSI removable disk
kernel: sd 43:0:0:1: Attached scsi generic sg2 type 0

No information about the external MMC.

Thanks for any hints.

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Re: N810: external mmc died?

[green]

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green wrote at 2009-07-29 13:12 -0600:
> I was working on moving Debian's root from internal mmc (because it still 
> doesn't work with linux-omap) to external mmc, running standard Maemo and 
> connected by USB to the MMC cards (with the cards mounted), when suddenly the 
> N810 reset.  I have no idea why, but now external MMC does not work.

I went back to commit 401b285465488f515290e0f9111872b94e1cf922 where both 
internal and external MMC worked, and now I get this error message while 
booting:

mmc0: error -110 whilst initialising SD card

I have never seen that message before.  It seems that some hardware has broken.  
Has this thing decided to start eating MMC cards now?  Can a MMC card not 
handle a reset while mounted (it probably was not being written to)?  If it 
helps, the card is labeled with "Patriot Memory MiniSDHC Class 6 8GB".

Thanks.

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Re: N810: external mmc died?

[green]

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green wrote at 2009-07-29 14:29 -0600:
> green wrote at 2009-07-29 13:12 -0600:
> > I was working on moving Debian's root from internal mmc (because it still 
> > doesn't work with linux-omap) to external mmc, running standard Maemo and 
> > connected by USB to the MMC cards (with the cards mounted), when suddenly the 
> > N810 reset.  I have no idea why, but now external MMC does not work.
> 
> I went back to commit 401b285465488f515290e0f9111872b94e1cf922 where both 
> internal and external MMC worked, and now I get this error message while 
> booting:
> 
> mmc0: error -110 whilst initialising SD card
> 
> I have never seen that message before.  It seems that some hardware has broken.  
> Has this thing decided to start eating MMC cards now?  Can a MMC card not 
> handle a reset while mounted (it probably was not being written to)?  If it 
> helps, the card is labeled with "Patriot Memory MiniSDHC Class 6 8GB".

I guess I'll look for a replacement and hope it works.

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