N810: external mmc died?

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.

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.

green wrote at 2009-07-29 13:12 -0600:

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.

green wrote at 2009-07-29 14:29 -0600:

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