* 8GB uus korra kaameras  käinud kaart
[285619.638980] mmc0: new high speed SDHC card at address 0007
[285619.639759] mmcblk0: mmc0:0007 SD08G 7.42 GiB 
[285619.641529]  mmcblk0: p1

Huvitav, kopeerib 1,1GB  kiiresti, aga :
/run/media> umount /run/media/mait/6D1F-A057 võtab aega. 
Veidi teateid: dmesg 
...
[285984.291148] mmc0: Too large timeout requested for CMD25!
[285984.299569] mmc0: Too large timeout requested for CMD25!
[285984.308004] mmc0: Too large timeout requested for CMD25!
[285984.316413] mmc0: Too large timeout requested for CMD25!
[285986.475156] mmcblk0: error -110 sending stop command, original cmd response 0x900, card status 0x400e00
ja siis tavalisede kohtvõrgu müra teated. 

Failisüsteemist on kaart kadunud, aga 
top näitab, et tegutseb veel
21212 root      20   0     0    0    0 R  40,7  0,0   2:36.49 mmcqd/0

ja käsu andmiseks kasutatud terminalis ei tule käsurida tagasi. 
CTRL+C aitab ca viie minuti pärast peale umount käsku. 
dmesg ei näita midagi 
Kaart välja. 
ja siis saan dmesg

[286602.129993] mmc0: Card removed during transfer!
[286602.130004] mmc0: Resetting controller.
[286602.130199] mmcblk0: error -123 requesting status
[286602.130231] end_request: I/O error, dev mmcblk0, sector 54592
[286602.130239] end_request: I/O error, dev mmcblk0, sector 54600
[286602.130244] end_request: I/O error, dev mmcblk0, sector 54608
[286602.130249] end_request: I/O error, dev mmcblk0, sector 54616
[286602.130254] end_request: I/O error, dev mmcblk0, sector 54624
[286602.130259] end_request: I/O error, dev mmcblk0, sector 54632
[286602.130264] end_request: I/O error, dev mmcblk0, sector 54640
[286602.130268] end_request: I/O error, dev mmcblk0, sector 54648
[286602.130273] end_request: I/O error, dev mmcblk0, sector 54656
[286602.130277] end_request: I/O error, dev mmcblk0, sector 54664
[286602.130282] end_request: I/O error, dev mmcblk0, sector 54672
[286602.130287] end_request: I/O error, dev mmcblk0, sector 54680
[286602.130291] end_request: I/O error, dev mmcblk0, sector 54688
[286602.130296] end_request: I/O error, dev mmcblk0, sector 54696
[286602.130300] end_request: I/O error, dev mmcblk0, sector 54704
[286602.130305] end_request: I/O error, dev mmcblk0, sector 54712
[286602.130432] mmcblk0: error -123 sending status command, retrying
[286602.130450] mmcblk0: error -123 sending status command, retrying
[286602.130468] mmcblk0: error -123 sending status command, aborting
[286602.328877] mmc0: card 0007 removed

* kaart sisse tagasi, kopeeritut seal peal ei ole. 


/usr/sbin/fsck /dev/mmcblk0p1 
fsck paketist util-linux 2.21.2
dosfsck 3.0.10, 12 Sep 2010, FAT32, LFN
/dev/mmcblk0p1: 5 files, 6/242944 clusters

* kopeerin kaks faili 
ja pmst täpselt sama stsenaarium, mille lõpus dmsg annab 

[287111.949802] end_request: I/O error, dev mmcblk0, sector 14488
[287111.949804] Buffer I/O error on device mmcblk0p1, logical block 6296
[287111.949806] lost page write due to I/O error on mmcblk0p1
[287111.949845] mmcblk0: error -123 sending status command, retrying
[287111.949863] mmcblk0: error -123 sending status command, retrying
[287111.949881] mmcblk0: error -123 sending status command, aborting
[287111.949883] end_request: I/O error, dev mmcblk0, sector 12586
[287111.949885] Buffer I/O error on device mmcblk0p1, logical block 4394
[287111.949886] lost page write due to I/O error on mmcblk0p1
[287111.949888] end_request: I/O error, dev mmcblk0, sector 12587
[287111.949890] Buffer I/O error on device mmcblk0p1, logical block 4395
[287111.949891] lost page write due to I/O error on mmcblk0p1
[287111.949893] end_request: I/O error, dev mmcblk0, sector 12588
[287111.949895] Buffer I/O error on device mmcblk0p1, logical block 4396
[287111.949896] lost page write due to I/O error on mmcblk0p1
[287111.949898] end_request: I/O error, dev mmcblk0, sector 12589
[287111.949900] Buffer I/O error on device mmcblk0p1, logical block 4397
[287111.949902] lost page write due to I/O error on mmcblk0p1
[287111.949939] mmcblk0: error -123 sending status command, retrying
[287111.949957] mmcblk0: error -123 sending status command, retrying
[287111.949973] mmcblk0: error -123 sending status command, aborting
[287111.949975] end_request: I/O error, dev mmcblk0, sector 8193
[287111.949977] Buffer I/O error on device mmcblk0p1, logical block 1
[287111.949978] lost page write due to I/O error on mmcblk0p1
[287112.391671] mmc0: card 0007 removed





* Proovin eraldi USB lugejas. 

[287216.747017] usb 2-1.4: new high-speed USB device number 33 using ehci_hcd
[287216.834648] usb 2-1.4: New USB device found, idVendor=058f, idProduct=6366
[287216.834658] usb 2-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[287216.834664] usb 2-1.4: Product: Mass Storage Device
[287216.834669] usb 2-1.4: Manufacturer: Generic
[287216.834673] usb 2-1.4: SerialNumber: 058F63666471
[287216.835907] scsi20 : usb-storage 2-1.4:1.0
[287217.837668] scsi 20:0:0:0: Direct-Access     Multi    Flash Reader     1.00 PQ: 0 ANSI: 0
[287217.838199] sd 20:0:0:0: Attached scsi generic sg2 type 0
[287218.382061] sd 20:0:0:0: [sdb] 15564800 512-byte logical blocks: (7.96 GB/7.42 GiB)
[287218.382921] sd 20:0:0:0: [sdb] Write Protect is off
[287218.382931] sd 20:0:0:0: [sdb] Mode Sense: 03 00 00 00
[287218.383799] sd 20:0:0:0: [sdb] No Caching mode page present
[287218.383809] sd 20:0:0:0: [sdb] Assuming drive cache: write through
[287218.387803] sd 20:0:0:0: [sdb] No Caching mode page present
[287218.387806] sd 20:0:0:0: [sdb] Assuming drive cache: write through
[287218.389317]  sdb: sdb1
[287218.392696] sd 20:0:0:0: [sdb] No Caching mode page present
[287218.392705] sd 20:0:0:0: [sdb] Assuming drive cache: write through
[287218.392712] sd 20:0:0:0: [sdb] Attached SCSI removable disk


Viis faili kopeerib kiiresti ja ka umount käib kiiresti. veateateid ei ole. 
Kaart välja ja tagasi koos lugejaga USB pesast. 
 
Kopeerin 1,1GB - see läheb kiiresti, aga umount võtab ca 30 sek ja siis on tehtud. 

neid  veateateid ka ei teki: 
[*] mmc0: Too large timeout requested for CMD25! 

Kaarti tundub töötavat ja tulemus vist viitab süleri sisemisele katkisele lugejale või selle draiverile hoopis. 
