Yes, the laptop internal SDHC card reader appears to not work reliably. I can read photos off of the card and seem to have no problems. However, using dd I have problems. Today, I've tried to create a raspberry pi wheezy SD card with dd on U12.04.2 with all the latest patches as of today.
I get very similar behaviour. The dd of 2Gb image finishes in about 20secs and dmesg is full of errors. No hanging this time. It's written ~320Kb and exited. This is the command I ran as per instructions on RaspPi website: sudo dd bs=4M if=./2013-02-09-wheezy-raspbian.img of=/dev/mmcblk0 Note, mmcblk0 is the name of the card when using the internal reader. It appears as /dev/sdd when using a USB SDHC reader (see below) and doesn't have a problem writing using dd. This is some of the dmesg output when writing to the mmcblk0 device: [104169.104548] mmcblk0: error -123 sending status command, retrying [104169.104565] mmcblk0: error -123 sending status command, retrying [104169.104582] mmcblk0: error -123 sending status command, aborting [104169.104583] end_request: I/O error, dev mmcblk0, sector 3467056 [104169.104587] end_request: I/O error, dev mmcblk0, sector 3467064 [104169.104590] end_request: I/O error, dev mmcblk0, sector 3467072 [104169.104594] end_request: I/O error, dev mmcblk0, sector 3467080 [104169.104598] end_request: I/O error, dev mmcblk0, sector 3467088 [104169.104601] end_request: I/O error, dev mmcblk0, sector 3467096 [104169.104605] end_request: I/O error, dev mmcblk0, sector 3467104 [104169.104610] end_request: I/O error, dev mmcblk0, sector 3467112 [104169.104615] end_request: I/O error, dev mmcblk0, sector 3467120 [104169.104620] end_request: I/O error, dev mmcblk0, sector 3467128 [104169.104625] end_request: I/O error, dev mmcblk0, sector 3467136 [104169.104630] end_request: I/O error, dev mmcblk0, sector 3467144 [104169.104685] mmcblk0: error -123 sending status command, retrying [104169.104702] mmcblk0: error -123 sending status command, retrying [104169.104719] mmcblk0: error -123 sending status command, aborting [104169.104721] end_request: I/O error, dev mmcblk0, sector 3467152 [104169.104726] end_request: I/O error, dev mmcblk0, sector 3467160 [104169.104731] end_request: I/O error, dev mmcblk0, sector 3467168 [104169.104735] end_request: I/O error, dev mmcblk0, sector 3467176 [104169.104739] end_request: I/O error, dev mmcblk0, sector 3467184 [104169.104743] end_request: I/O error, dev mmcblk0, sector 3467192 [104169.104746] end_request: I/O error, dev mmcblk0, sector 3467200 [104169.104750] end_request: I/O error, dev mmcblk0, sector 3467208 [104169.104753] end_request: I/O error, dev mmcblk0, sector 3467216 [104169.104757] end_request: I/O error, dev mmcblk0, sector 3467224 [104169.104761] end_request: I/O error, dev mmcblk0, sector 3467232 [104169.104763] end_request: I/O error, dev mmcblk0, sector 3467240 [104169.104767] end_request: I/O error, dev mmcblk0, sector 3467248 [104169.104770] end_request: I/O error, dev mmcblk0, sector 3467256 [104169.104775] end_request: I/O error, dev mmcblk0, sector 3467264 [104169.104778] end_request: I/O error, dev mmcblk0, sector 3467272 [104169.104831] mmcblk0: error -123 sending status command, retrying [104169.104849] mmcblk0: error -123 sending status command, retrying [104169.104867] mmcblk0: error -123 sending status command, aborting [104169.104869] end_request: I/O error, dev mmcblk0, sector 3467280 [104169.104873] end_request: I/O error, dev mmcblk0, sector 3467288 [104169.104878] end_request: I/O error, dev mmcblk0, sector 3467296 [104169.104883] end_request: I/O error, dev mmcblk0, sector 3467304 [104169.104888] end_request: I/O error, dev mmcblk0, sector 3467312 [104169.104892] end_request: I/O error, dev mmcblk0, sector 3467320 [104169.104897] end_request: I/O error, dev mmcblk0, sector 3467328 [104169.104902] end_request: I/O error, dev mmcblk0, sector 3467336 [104169.104907] end_request: I/O error, dev mmcblk0, sector 3467344 [104169.104912] end_request: I/O error, dev mmcblk0, sector 3467352 [104169.104916] end_request: I/O error, dev mmcblk0, sector 3467360 [104169.104921] end_request: I/O error, dev mmcblk0, sector 3467368 [104169.104926] end_request: I/O error, dev mmcblk0, sector 3467376 [104169.104931] end_request: I/O error, dev mmcblk0, sector 3467384 [104169.104936] end_request: I/O error, dev mmcblk0, sector 3467392 [104169.104940] end_request: I/O error, dev mmcblk0, sector 3467400 [104169.104994] mmcblk0: error -123 sending status command, retrying [104169.105011] mmcblk0: error -123 sending status command, retrying [104169.105028] mmcblk0: error -123 sending status command, aborting [104169.105029] end_request: I/O error, dev mmcblk0, sector 3467408 [104169.105033] end_request: I/O error, dev mmcblk0, sector 3467416 [104169.105037] end_request: I/O error, dev mmcblk0, sector 3467424 [104169.105040] end_request: I/O error, dev mmcblk0, sector 3467432 [104169.105044] end_request: I/O error, dev mmcblk0, sector 3467440 [104169.105048] end_request: I/O error, dev mmcblk0, sector 3467448 [104169.105051] end_request: I/O error, dev mmcblk0, sector 3467456 [104169.105055] end_request: I/O error, dev mmcblk0, sector 3467464 [104169.105059] end_request: I/O error, dev mmcblk0, sector 3467472 [104169.105062] end_request: I/O error, dev mmcblk0, sector 3467480 [104169.105067] end_request: I/O error, dev mmcblk0, sector 3467488 [104169.105072] end_request: I/O error, dev mmcblk0, sector 3467496 [104169.105077] end_request: I/O error, dev mmcblk0, sector 3467504 [104169.105089] end_request: I/O error, dev mmcblk0, sector 3467512 [104169.105093] end_request: I/O error, dev mmcblk0, sector 3467520 [104169.105097] end_request: I/O error, dev mmcblk0, sector 3467528 [104169.105152] mmcblk0: error -123 sending status command, retrying [104169.105170] mmcblk0: error -123 sending status command, retrying [104169.105187] mmcblk0: error -123 sending status command, aborting [104169.105189] end_request: I/O error, dev mmcblk0, sector 3467536 [104169.105192] end_request: I/O error, dev mmcblk0, sector 3467544 [104169.105196] end_request: I/O error, dev mmcblk0, sector 3467552 [104169.105200] end_request: I/O error, dev mmcblk0, sector 3467560 [104169.105204] end_request: I/O error, dev mmcblk0, sector 3467568 [104169.105207] end_request: I/O error, dev mmcblk0, sector 3467576 [104169.105211] end_request: I/O error, dev mmcblk0, sector 3467584 [104169.105214] end_request: I/O error, dev mmcblk0, sector 3467592 [104169.105218] end_request: I/O error, dev mmcblk0, sector 3467600 [104169.105222] end_request: I/O error, dev mmcblk0, sector 3467608 [104169.105225] end_request: I/O error, dev mmcblk0, sector 3467616 [104169.105229] end_request: I/O error, dev mmcblk0, sector 3467624 [104169.105233] end_request: I/O error, dev mmcblk0, sector 3467632 [104169.105236] end_request: I/O error, dev mmcblk0, sector 3467640 [104169.105240] end_request: I/O error, dev mmcblk0, sector 3467648 [104169.105243] end_request: I/O error, dev mmcblk0, sector 3467656 [104169.105297] mmcblk0: error -123 sending status command, retrying [104169.105314] mmcblk0: error -123 sending status command, retrying [104169.105332] mmcblk0: error -123 sending status command, aborting [104169.105334] end_request: I/O error, dev mmcblk0, sector 3467664 [104169.105338] end_request: I/O error, dev mmcblk0, sector 3467672 [104169.105343] end_request: I/O error, dev mmcblk0, sector 3467680 [104169.105348] end_request: I/O error, dev mmcblk0, sector 3467688 [104169.105353] end_request: I/O error, dev mmcblk0, sector 3467696 [104169.105357] end_request: I/O error, dev mmcblk0, sector 3467704 [104169.105362] end_request: I/O error, dev mmcblk0, sector 3467712 [104169.105367] end_request: I/O error, dev mmcblk0, sector 3467720 [104169.105372] end_request: I/O error, dev mmcblk0, sector 3467728 [104169.105376] end_request: I/O error, dev mmcblk0, sector 3467736 [104169.105381] end_request: I/O error, dev mmcblk0, sector 3467744 [104169.105386] end_request: I/O error, dev mmcblk0, sector 3467752 [104169.105391] end_request: I/O error, dev mmcblk0, sector 3467760 [104169.105396] end_request: I/O error, dev mmcblk0, sector 3467768 [104169.105400] end_request: I/O error, dev mmcblk0, sector 3467776 [104169.105405] end_request: I/O error, dev mmcblk0, sector 3467784 [104169.105459] mmcblk0: error -123 sending status command, retrying [104169.105476] mmcblk0: error -123 sending status command, retrying [104169.105492] mmcblk0: error -123 sending status command, aborting [104169.105493] end_request: I/O error, dev mmcblk0, sector 3467792 [104169.105497] end_request: I/O error, dev mmcblk0, sector 3467800 [104169.105501] end_request: I/O error, dev mmcblk0, sector 3467808 [104169.105505] end_request: I/O error, dev mmcblk0, sector 3467816 [104169.105509] end_request: I/O error, dev mmcblk0, sector 3467824 [104169.105513] end_request: I/O error, dev mmcblk0, sector 3467832 [104169.105517] end_request: I/O error, dev mmcblk0, sector 3467840 [104169.105520] end_request: I/O error, dev mmcblk0, sector 3467848 [104169.105525] end_request: I/O error, dev mmcblk0, sector 3467856 [104169.105528] end_request: I/O error, dev mmcblk0, sector 3467864 [104169.105533] end_request: I/O error, dev mmcblk0, sector 3467872 [104169.105537] end_request: I/O error, dev mmcblk0, sector 3467880 [104169.105542] end_request: I/O error, dev mmcblk0, sector 3467888 [104169.105546] end_request: I/O error, dev mmcblk0, sector 3467896 [104169.105604] mmcblk0: error -123 sending status command, retrying [104169.105622] mmcblk0: error -123 sending status command, retrying [104169.105639] mmcblk0: error -123 sending status command, aborting [104169.105642] end_request: I/O error, dev mmcblk0, sector 3468136 [104169.105647] end_request: I/O error, dev mmcblk0, sector 3468144 [104169.105652] end_request: I/O error, dev mmcblk0, sector 3468152 [104169.105657] end_request: I/O error, dev mmcblk0, sector 3468160 [104169.105661] end_request: I/O error, dev mmcblk0, sector 3468168 [104169.105665] end_request: I/O error, dev mmcblk0, sector 3468176 [104169.105669] end_request: I/O error, dev mmcblk0, sector 3468184 [104169.105673] end_request: I/O error, dev mmcblk0, sector 3468192 [104169.105677] end_request: I/O error, dev mmcblk0, sector 3468200 [104169.105680] end_request: I/O error, dev mmcblk0, sector 3468208 [104169.105684] end_request: I/O error, dev mmcblk0, sector 3468216 [104169.105687] end_request: I/O error, dev mmcblk0, sector 3468224 [104169.105691] end_request: I/O error, dev mmcblk0, sector 3468232 [104169.105694] end_request: I/O error, dev mmcblk0, sector 3468240 [104169.105698] end_request: I/O error, dev mmcblk0, sector 3468248 [104169.105701] end_request: I/O error, dev mmcblk0, sector 3468256 [104169.105756] mmcblk0: error -123 sending status command, retrying [104169.105773] mmcblk0: error -123 sending status command, retrying [104169.105790] mmcblk0: error -123 sending status command, aborting [104169.105793] end_request: I/O error, dev mmcblk0, sector 3468264 [104169.105797] end_request: I/O error, dev mmcblk0, sector 3468272 [104169.105802] end_request: I/O error, dev mmcblk0, sector 3468280 [104169.105806] end_request: I/O error, dev mmcblk0, sector 3468288 [104169.105811] end_request: I/O error, dev mmcblk0, sector 3468296 [104169.105816] end_request: I/O error, dev mmcblk0, sector 3468304 [104169.105821] end_request: I/O error, dev mmcblk0, sector 3468312 [104169.105826] end_request: I/O error, dev mmcblk0, sector 3468320 [104169.105830] end_request: I/O error, dev mmcblk0, sector 3468328 [104169.105835] end_request: I/O error, dev mmcblk0, sector 3468336 [104169.105840] end_request: I/O error, dev mmcblk0, sector 3468344 [104169.105845] end_request: I/O error, dev mmcblk0, sector 3468352 [104169.105850] end_request: I/O error, dev mmcblk0, sector 3468360 [104169.105855] end_request: I/O error, dev mmcblk0, sector 3468368 [104169.105859] end_request: I/O error, dev mmcblk0, sector 3468376 [104169.105865] end_request: I/O error, dev mmcblk0, sector 3468384 [104169.105920] mmcblk0: error -123 sending status command, retrying [104169.105937] mmcblk0: error -123 sending status command, retrying [104169.105953] mmcblk0: error -123 sending status command, aborting [104169.105955] end_request: I/O error, dev mmcblk0, sector 3468392 [104169.105958] end_request: I/O error, dev mmcblk0, sector 3468400 [104169.105962] end_request: I/O error, dev mmcblk0, sector 3468408 [104169.105966] end_request: I/O error, dev mmcblk0, sector 3468416 [104169.105970] end_request: I/O error, dev mmcblk0, sector 3468424 [104169.105973] end_request: I/O error, dev mmcblk0, sector 3468432 [104169.105976] end_request: I/O error, dev mmcblk0, sector 3468440 [104169.105980] end_request: I/O error, dev mmcblk0, sector 3468448 [104169.105984] end_request: I/O error, dev mmcblk0, sector 3468456 [104169.105987] end_request: I/O error, dev mmcblk0, sector 3468464 [104169.105991] end_request: I/O error, dev mmcblk0, sector 3468472 [104169.105995] end_request: I/O error, dev mmcblk0, sector 3468480 [104169.105999] end_request: I/O error, dev mmcblk0, sector 3468488 [104169.106003] end_request: I/O error, dev mmcblk0, sector 3468496 [104169.106008] end_request: I/O error, dev mmcblk0, sector 3468504 [104169.106012] end_request: I/O error, dev mmcblk0, sector 3468512 [104169.106059] mmcblk0: error -123 sending status command, retrying [104169.106077] mmcblk0: error -123 sending status command, retrying [104169.106095] mmcblk0: error -123 sending status command, aborting [104169.106097] end_request: I/O error, dev mmcblk0, sector 3468520 [104169.106102] end_request: I/O error, dev mmcblk0, sector 3468528 [104169.106107] end_request: I/O error, dev mmcblk0, sector 3468536 [104169.106111] end_request: I/O error, dev mmcblk0, sector 3468544 [104169.106116] end_request: I/O error, dev mmcblk0, sector 3468552 [104169.106121] end_request: I/O error, dev mmcblk0, sector 3468560 [104169.106125] end_request: I/O error, dev mmcblk0, sector 3468568 [104169.106130] end_request: I/O error, dev mmcblk0, sector 3468576 [104169.106134] end_request: I/O error, dev mmcblk0, sector 3468584 [104169.106138] end_request: I/O error, dev mmcblk0, sector 3468592 [104169.106142] end_request: I/O error, dev mmcblk0, sector 3468600 [104169.106145] end_request: I/O error, dev mmcblk0, sector 3468608 [104169.106148] end_request: I/O error, dev mmcblk0, sector 3468616 [104169.106151] end_request: I/O error, dev mmcblk0, sector 3468624 [104169.106155] end_request: I/O error, dev mmcblk0, sector 3468632 [104169.106158] end_request: I/O error, dev mmcblk0, sector 3468640 [104169.106206] mmcblk0: error -123 sending status command, retrying [104169.106223] mmcblk0: error -123 sending status command, retrying [104169.106239] mmcblk0: error -123 sending status command, aborting [104169.106241] end_request: I/O error, dev mmcblk0, sector 3468648 [104169.106295] mmcblk0: error -123 sending status command, retrying [104169.106313] mmcblk0: error -123 sending status command, retrying [104169.106330] mmcblk0: error -123 sending status command, aborting [104169.106332] end_request: I/O error, dev mmcblk0, sector 3468808 [104169.106337] end_request: I/O error, dev mmcblk0, sector 3468816 [104169.106341] end_request: I/O error, dev mmcblk0, sector 3468824 [104169.106344] end_request: I/O error, dev mmcblk0, sector 3468832 [104169.106348] end_request: I/O error, dev mmcblk0, sector 3468840 [104169.106351] end_request: I/O error, dev mmcblk0, sector 3468848 [104169.106356] end_request: I/O error, dev mmcblk0, sector 3468856 [104169.106359] end_request: I/O error, dev mmcblk0, sector 3468864 [104169.106363] end_request: I/O error, dev mmcblk0, sector 3468872 [104169.106367] end_request: I/O error, dev mmcblk0, sector 3468880 [104169.106370] end_request: I/O error, dev mmcblk0, sector 3468888 [104169.106374] end_request: I/O error, dev mmcblk0, sector 3468896 [104169.106377] end_request: I/O error, dev mmcblk0, sector 3468904 [104169.106381] end_request: I/O error, dev mmcblk0, sector 3468912 [104169.106385] end_request: I/O error, dev mmcblk0, sector 3468920 [104169.106388] end_request: I/O error, dev mmcblk0, sector 3468928 [104169.106441] mmcblk0: error -123 sending status command, retrying [104169.106460] mmcblk0: error -123 sending status command, retrying [104169.106479] mmcblk0: error -123 sending status command, aborting [104169.106482] end_request: I/O error, dev mmcblk0, sector 3469072 [104169.106487] end_request: I/O error, dev mmcblk0, sector 3469080 [104169.106491] end_request: I/O error, dev mmcblk0, sector 3469088 [104169.106494] end_request: I/O error, dev mmcblk0, sector 3469096 [104169.106498] end_request: I/O error, dev mmcblk0, sector 3469104 [104169.106502] end_request: I/O error, dev mmcblk0, sector 3469112 [104169.106506] end_request: I/O error, dev mmcblk0, sector 3469120 [104169.106509] end_request: I/O error, dev mmcblk0, sector 3469128 [104169.106513] end_request: I/O error, dev mmcblk0, sector 3469136 [104169.106516] end_request: I/O error, dev mmcblk0, sector 3469144 [104169.106520] end_request: I/O error, dev mmcblk0, sector 3469152 [104169.106524] end_request: I/O error, dev mmcblk0, sector 3469160 [104169.106526] end_request: I/O error, dev mmcblk0, sector 3469168 [104169.106530] end_request: I/O error, dev mmcblk0, sector 3469176 [104169.106533] end_request: I/O error, dev mmcblk0, sector 3469184 [104169.106537] end_request: I/O error, dev mmcblk0, sector 3469192 [104169.106600] mmcblk0: error -123 sending status command, retrying [104169.106618] mmcblk0: error -123 sending status command, retrying [104169.106637] mmcblk0: error -123 sending status command, aborting [104169.106639] end_request: I/O error, dev mmcblk0, sector 3469200 [104169.106642] end_request: I/O error, dev mmcblk0, sector 3469208 [104169.106645] end_request: I/O error, dev mmcblk0, sector 3469216 [104169.106647] end_request: I/O error, dev mmcblk0, sector 3469224 [104169.106650] end_request: I/O error, dev mmcblk0, sector 3469232 [104169.106652] end_request: I/O error, dev mmcblk0, sector 3469240 [104169.106655] end_request: I/O error, dev mmcblk0, sector 3469248 [104169.106660] end_request: I/O error, dev mmcblk0, sector 3469256 [104169.106663] end_request: I/O error, dev mmcblk0, sector 3469264 [104169.106666] end_request: I/O error, dev mmcblk0, sector 3469272 [104169.106670] end_request: I/O error, dev mmcblk0, sector 3469280 [104169.106673] end_request: I/O error, dev mmcblk0, sector 3469288 [104169.106724] mmcblk0: error -123 sending status command, retrying [104169.106741] mmcblk0: error -123 sending status command, retrying [104169.106758] mmcblk0: error -123 sending status command, aborting [104169.106760] end_request: I/O error, dev mmcblk0, sector 3469504 [104169.106765] end_request: I/O error, dev mmcblk0, sector 3469512 [104169.106770] end_request: I/O error, dev mmcblk0, sector 3469520 [104169.106775] end_request: I/O error, dev mmcblk0, sector 3469528 [104169.106779] end_request: I/O error, dev mmcblk0, sector 3469536 [104169.106784] end_request: I/O error, dev mmcblk0, sector 3469544 [104169.106789] end_request: I/O error, dev mmcblk0, sector 3469552 [104169.106793] end_request: I/O error, dev mmcblk0, sector 3469560 [104169.106798] end_request: I/O error, dev mmcblk0, sector 3469568 [104169.106802] end_request: I/O error, dev mmcblk0, sector 3469576 [104169.106807] end_request: I/O error, dev mmcblk0, sector 3469584 [104169.106812] end_request: I/O error, dev mmcblk0, sector 3469592 [104169.106816] end_request: I/O error, dev mmcblk0, sector 3469600 [104169.106819] end_request: I/O error, dev mmcblk0, sector 3469608 [104169.106823] end_request: I/O error, dev mmcblk0, sector 3469616 [104169.106827] end_request: I/O error, dev mmcblk0, sector 3469624 [104169.106873] mmcblk0: error -123 sending status command, retrying [104169.106890] mmcblk0: error -123 sending status command, retrying [104169.106907] mmcblk0: error -123 sending status command, aborting [104169.106909] end_request: I/O error, dev mmcblk0, sector 3469632 [104169.106913] end_request: I/O error, dev mmcblk0, sector 3469640 [104169.106918] end_request: I/O error, dev mmcblk0, sector 3469648 [104169.106923] end_request: I/O error, dev mmcblk0, sector 3469656 [104169.106928] end_request: I/O error, dev mmcblk0, sector 3469664 [104169.106932] end_request: I/O error, dev mmcblk0, sector 3469672 [104169.106941] end_request: I/O error, dev mmcblk0, sector 3469680 [104169.106944] end_request: I/O error, dev mmcblk0, sector 3469688 [104169.106949] end_request: I/O error, dev mmcblk0, sector 3469696 [104169.107001] mmcblk0: error -123 sending status command, retrying [104169.107019] mmcblk0: error -123 sending status command, retrying [104169.107036] mmcblk0: error -123 sending status command, aborting [104169.107037] end_request: I/O error, dev mmcblk0, sector 3469704 [104169.107041] end_request: I/O error, dev mmcblk0, sector 3469712 [104169.107045] end_request: I/O error, dev mmcblk0, sector 3469720 [104169.107048] end_request: I/O error, dev mmcblk0, sector 3469728 [104169.107052] end_request: I/O error, dev mmcblk0, sector 3469736 [104169.107055] end_request: I/O error, dev mmcblk0, sector 3469744 [104169.107059] end_request: I/O error, dev mmcblk0, sector 3469752 [104169.107063] end_request: I/O error, dev mmcblk0, sector 3469760 [104169.107067] end_request: I/O error, dev mmcblk0, sector 3469768 [104169.107122] mmcblk0: error -123 sending status command, retrying [104169.107139] mmcblk0: error -123 sending status command, retrying [104169.107157] mmcblk0: error -123 sending status command, aborting [104169.107159] end_request: I/O error, dev mmcblk0, sector 3469904 [104169.107164] end_request: I/O error, dev mmcblk0, sector 3469912 [104169.107168] end_request: I/O error, dev mmcblk0, sector 3469920 [104169.107172] end_request: I/O error, dev mmcblk0, sector 3469928 [104169.107177] end_request: I/O error, dev mmcblk0, sector 3469936 [104169.107182] end_request: I/O error, dev mmcblk0, sector 3469944 [104169.107186] end_request: I/O error, dev mmcblk0, sector 3469952 [104169.107191] end_request: I/O error, dev mmcblk0, sector 3469960 [104169.107195] end_request: I/O error, dev mmcblk0, sector 3469968 [104169.107199] end_request: I/O error, dev mmcblk0, sector 3469976 [104169.107203] end_request: I/O error, dev mmcblk0, sector 3469984 [104169.107208] end_request: I/O error, dev mmcblk0, sector 3469992 [104169.107212] end_request: I/O error, dev mmcblk0, sector 3470000 [104169.107217] end_request: I/O error, dev mmcblk0, sector 3470008 [104169.107221] end_request: I/O error, dev mmcblk0, sector 3470016 [104169.107267] mmcblk0: error -123 sending status command, retrying [104169.107285] mmcblk0: error -123 sending status command, retrying [104169.107302] mmcblk0: error -123 sending status command, aborting [104169.107303] end_request: I/O error, dev mmcblk0, sector 3474008 [104169.107306] end_request: I/O error, dev mmcblk0, sector 3474016 [104169.107309] end_request: I/O error, dev mmcblk0, sector 3474024 [104169.107313] end_request: I/O error, dev mmcblk0, sector 3474032 [104169.107316] end_request: I/O error, dev mmcblk0, sector 3474040 [104169.107320] end_request: I/O error, dev mmcblk0, sector 3474048 [104169.107324] end_request: I/O error, dev mmcblk0, sector 3474056 [104169.107328] end_request: I/O error, dev mmcblk0, sector 3474064 [104169.107332] end_request: I/O error, dev mmcblk0, sector 3474072 [104169.107336] end_request: I/O error, dev mmcblk0, sector 3474080 [104169.107339] end_request: I/O error, dev mmcblk0, sector 3474088 [104169.107343] end_request: I/O error, dev mmcblk0, sector 3474096 [104169.107346] end_request: I/O error, dev mmcblk0, sector 3474104 [104169.107350] end_request: I/O error, dev mmcblk0, sector 3474112 [104169.107354] end_request: I/O error, dev mmcblk0, sector 3474120 [104169.107357] end_request: I/O error, dev mmcblk0, sector 3474128 [104169.107406] mmcblk0: error -123 sending status command, retrying [104169.107424] mmcblk0: error -123 sending status command, retrying [104169.107441] mmcblk0: error -123 sending status command, aborting [104169.107443] end_request: I/O error, dev mmcblk0, sector 3474136 [104169.107492] mmcblk0: error -123 sending status command, retrying [104169.107509] mmcblk0: error -123 sending status command, retrying [104169.107525] mmcblk0: error -123 sending status command, aborting [104169.107526] end_request: I/O error, dev mmcblk0, sector 3474480 [104169.107530] end_request: I/O error, dev mmcblk0, sector 3474488 [104169.107534] end_request: I/O error, dev mmcblk0, sector 3474496 [104169.107537] end_request: I/O error, dev mmcblk0, sector 3474504 [104169.107541] end_request: I/O error, dev mmcblk0, sector 3474512 [104169.107545] end_request: I/O error, dev mmcblk0, sector 3474520 [104169.107548] end_request: I/O error, dev mmcblk0, sector 3474528 [104169.107552] end_request: I/O error, dev mmcblk0, sector 3474536 [104169.107555] end_request: I/O error, dev mmcblk0, sector 3474544 [104169.107559] end_request: I/O error, dev mmcblk0, sector 3474552 [104169.107563] end_request: I/O error, dev mmcblk0, sector 3474560 [104169.107566] end_request: I/O error, dev mmcblk0, sector 3474568 [104169.107570] end_request: I/O error, dev mmcblk0, sector 3474576 [104169.107572] end_request: I/O error, dev mmcblk0, sector 3474584 [104169.107576] end_request: I/O error, dev mmcblk0, sector 3474592 [104169.107579] end_request: I/O error, dev mmcblk0, sector 3474600 [104169.107628] mmcblk0: error -123 sending status command, retrying [104169.107646] mmcblk0: error -123 sending status command, retrying [104169.107663] mmcblk0: error -123 sending status command, aborting [104169.107665] end_request: I/O error, dev mmcblk0, sector 3474608 [104169.107669] end_request: I/O error, dev mmcblk0, sector 3474616 [104169.107674] end_request: I/O error, dev mmcblk0, sector 3474624 [104169.107678] end_request: I/O error, dev mmcblk0, sector 3474632 [104169.107683] end_request: I/O error, dev mmcblk0, sector 3474640 [104169.107687] end_request: I/O error, dev mmcblk0, sector 3474648 [104169.107692] end_request: I/O error, dev mmcblk0, sector 3474656 [104169.107697] end_request: I/O error, dev mmcblk0, sector 3474664 [104169.107750] mmcblk0: error -123 sending status command, retrying [104169.107768] mmcblk0: error -123 sending status command, retrying [104169.107785] mmcblk0: error -123 sending status command, aborting [104169.107786] end_request: I/O error, dev mmcblk0, sector 3475192 [104169.107790] end_request: I/O error, dev mmcblk0, sector 3475200 [104169.107793] end_request: I/O error, dev mmcblk0, sector 3475208 [104169.107797] end_request: I/O error, dev mmcblk0, sector 3475216 [104169.107802] end_request: I/O error, dev mmcblk0, sector 3475224 [104169.107807] end_request: I/O error, dev mmcblk0, sector 3475232 [104169.107811] end_request: I/O error, dev mmcblk0, sector 3475240 [104169.107816] end_request: I/O error, dev mmcblk0, sector 3475248 [104169.107821] end_request: I/O error, dev mmcblk0, sector 3475256 [104169.107825] end_request: I/O error, dev mmcblk0, sector 3475264 [104169.107830] end_request: I/O error, dev mmcblk0, sector 3475272 [104169.107834] end_request: I/O error, dev mmcblk0, sector 3475280 [104169.107839] end_request: I/O error, dev mmcblk0, sector 3475288 [104169.107844] end_request: I/O error, dev mmcblk0, sector 3475296 [104169.107848] end_request: I/O error, dev mmcblk0, sector 3475304 [104169.107853] end_request: I/O error, dev mmcblk0, sector 3475312 [104169.107907] mmcblk0: error -123 sending status command, retrying [104169.107925] mmcblk0: error -123 sending status command, retrying [104169.107943] mmcblk0: error -123 sending status command, aborting [104169.107944] end_request: I/O error, dev mmcblk0, sector 3475320 [104169.107947] end_request: I/O error, dev mmcblk0, sector 3475328 [104169.107951] end_request: I/O error, dev mmcblk0, sector 3475336 [104169.107955] end_request: I/O error, dev mmcblk0, sector 3475344 [104169.107958] end_request: I/O error, dev mmcblk0, sector 3475352 [104169.107962] end_request: I/O error, dev mmcblk0, sector 3475360 [104169.107966] end_request: I/O error, dev mmcblk0, sector 3475368 [104169.107969] end_request: I/O error, dev mmcblk0, sector 3475376 [104169.107973] end_request: I/O error, dev mmcblk0, sector 3475384 [104169.107977] end_request: I/O error, dev mmcblk0, sector 3475392 [104169.107980] end_request: I/O error, dev mmcblk0, sector 3475400 [104169.107984] end_request: I/O error, dev mmcblk0, sector 3475408 [104169.107987] end_request: I/O error, dev mmcblk0, sector 3475416 [104169.107991] end_request: I/O error, dev mmcblk0, sector 3475424 [104169.107994] end_request: I/O error, dev mmcblk0, sector 3475432 [104169.107997] end_request: I/O error, dev mmcblk0, sector 3475440 [104169.108042] mmcblk0: error -123 sending status command, retrying [104169.108059] mmcblk0: error -123 sending status command, retrying [104169.108077] mmcblk0: error -123 sending status command, aborting [104169.108079] end_request: I/O error, dev mmcblk0, sector 3475448 [104169.108084] end_request: I/O error, dev mmcblk0, sector 3475456 [104169.108089] end_request: I/O error, dev mmcblk0, sector 3475464 [104169.108093] end_request: I/O error, dev mmcblk0, sector 3475472 [104169.108098] end_request: I/O error, dev mmcblk0, sector 3475480 [104169.108102] end_request: I/O error, dev mmcblk0, sector 3475488 [104169.108107] end_request: I/O error, dev mmcblk0, sector 3475496 [104169.108111] end_request: I/O error, dev mmcblk0, sector 3475504 [104169.108116] end_request: I/O error, dev mmcblk0, sector 3475512 [104169.108121] end_request: I/O error, dev mmcblk0, sector 3475520 [104169.108125] end_request: I/O error, dev mmcblk0, sector 3475528 [104169.108130] end_request: I/O error, dev mmcblk0, sector 3475536 [104169.108134] end_request: I/O error, dev mmcblk0, sector 3475544 [104169.108139] end_request: I/O error, dev mmcblk0, sector 3475552 [104169.108143] end_request: I/O error, dev mmcblk0, sector 3475560 [104169.108182] mmcblk0: error -123 sending status command, retrying [104169.108199] mmcblk0: error -123 sending status command, retrying [104169.108215] mmcblk0: error -123 sending status command, aborting [104169.108217] end_request: I/O error, dev mmcblk0, sector 3475704 [104174.800886] sd 7:0:0:1: [sdd] 31244288 512-byte logical blocks: (15.9 GB/14.8 GiB) [104174.835784] sdd: sdd1 sdd2 [104175.578284] JBD2: no valid journal superblock found [104175.578294] EXT4-fs (sdd2): error loading journal [104203.624556] usb 1-1.2: USB disconnect, device number 4 [104402.494150] INFO: task blkid:11619 blocked for more than 120 seconds. [104402.494159] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [104402.494166] blkid D ffffffff81806240 0 11619 10020 0x00000004 [104402.494177] ffff88003d005b18 0000000000000082 ffffffff81e523c0 ffff88022c7fc790 [104402.494187] ffff88003d005fd8 ffff88003d005fd8 ffff88003d005fd8 00000000000137c0 [104402.494196] ffffffff81c0d020 ffff8801a3a2ae00 ffff88003d005b38 ffff88022d95a3d8 [104402.494204] Call Trace: [104402.494219] [<ffffffff8165ba6f>] schedule+0x3f/0x60 [104402.494229] [<ffffffff8165c877>] __mutex_lock_slowpath+0xd7/0x150 [104402.494241] [<ffffffff810865be>] ? __cancel_work_timer+0x3e/0x80 [104402.494248] [<ffffffff8165c48a>] mutex_lock+0x2a/0x50 [104402.494258] [<ffffffff811b1cbb>] __blkdev_get+0x7b/0x460 [104402.494266] [<ffffffff811b20fe>] blkdev_get+0x5e/0x1e0 [104402.494275] [<ffffffff811b22dd>] blkdev_open+0x5d/0x80 [104402.494283] [<ffffffff811772e0>] __dentry_open+0x290/0x360 [104402.494291] [<ffffffff811b2280>] ? blkdev_get+0x1e0/0x1e0 [104402.494300] [<ffffffff8129ebcc>] ? security_inode_permission+0x1c/0x30 [104402.494309] [<ffffffff8118505a>] ? inode_permission+0x4a/0x110 [104402.494316] [<ffffffff8117795d>] vfs_open+0x3d/0x40 [104402.494323] [<ffffffff81178860>] nameidata_to_filp+0x40/0x50 [104402.494330] [<ffffffff81187898>] do_last+0x3f8/0x730 [104402.494337] [<ffffffff81188f71>] path_openat+0xd1/0x3f0 [104402.494348] [<ffffffff8164993e>] ? __slab_free+0x1d2/0x2f3 [104402.494356] [<ffffffff811893b2>] do_filp_open+0x42/0xa0 [104402.494368] [<ffffffff8131b131>] ? strncpy_from_user+0x31/0x40 [104402.494375] [<ffffffff811846fa>] ? do_getname+0x10a/0x180 [104402.494382] [<ffffffff8165d97e>] ? _raw_spin_lock+0xe/0x20 [104402.494391] [<ffffffff811966b7>] ? alloc_fd+0xf7/0x150 [104402.494398] [<ffffffff81178968>] do_sys_open+0xf8/0x240 [104402.494405] [<ffffffff81178ad0>] sys_open+0x20/0x30 [104402.494413] [<ffffffff81665f82>] system_call_fastpath+0x16/0x1b [104522.220785] INFO: task blkid:11619 blocked for more than 120 seconds. [104522.220791] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [104522.220796] blkid D ffffffff81806240 0 11619 10020 0x00000004 [104522.220804] ffff88003d005b18 0000000000000082 ffffffff81e523c0 ffff88022c7fc790 [104522.220810] ffff88003d005fd8 ffff88003d005fd8 ffff88003d005fd8 00000000000137c0 [104522.220816] ffffffff81c0d020 ffff8801a3a2ae00 ffff88003d005b38 ffff88022d95a3d8 [104522.220822] Call Trace: [104522.220832] [<ffffffff8165ba6f>] schedule+0x3f/0x60 [104522.220838] [<ffffffff8165c877>] __mutex_lock_slowpath+0xd7/0x150 [104522.220847] [<ffffffff810865be>] ? __cancel_work_timer+0x3e/0x80 [104522.220851] [<ffffffff8165c48a>] mutex_lock+0x2a/0x50 [104522.220858] [<ffffffff811b1cbb>] __blkdev_get+0x7b/0x460 [104522.220864] [<ffffffff811b20fe>] blkdev_get+0x5e/0x1e0 [104522.220869] [<ffffffff811b22dd>] blkdev_open+0x5d/0x80 [104522.220875] [<ffffffff811772e0>] __dentry_open+0x290/0x360 [104522.220880] [<ffffffff811b2280>] ? blkdev_get+0x1e0/0x1e0 [104522.220886] [<ffffffff8129ebcc>] ? security_inode_permission+0x1c/0x30 [104522.220892] [<ffffffff8118505a>] ? inode_permission+0x4a/0x110 [104522.220897] [<ffffffff8117795d>] vfs_open+0x3d/0x40 [104522.220901] [<ffffffff81178860>] nameidata_to_filp+0x40/0x50 [104522.220906] [<ffffffff81187898>] do_last+0x3f8/0x730 [104522.220911] [<ffffffff81188f71>] path_openat+0xd1/0x3f0 [104522.220919] [<ffffffff8164993e>] ? __slab_free+0x1d2/0x2f3 [104522.220924] [<ffffffff811893b2>] do_filp_open+0x42/0xa0 [104522.220933] [<ffffffff8131b131>] ? strncpy_from_user+0x31/0x40 [104522.220938] [<ffffffff811846fa>] ? do_getname+0x10a/0x180 [104522.220943] [<ffffffff8165d97e>] ? _raw_spin_lock+0xe/0x20 [104522.220949] [<ffffffff811966b7>] ? alloc_fd+0xf7/0x150 [104522.220954] [<ffffffff81178968>] do_sys_open+0xf8/0x240 [104522.220958] [<ffffffff81178ad0>] sys_open+0x20/0x30 [104522.220964] [<ffffffff81665f82>] system_call_fastpath+0x16/0x1b If I run the same command via a Kingston SDHC card reader with the same Kingston 16Gb class 6 SDHC card over USB it seems to work fine: sudo dd bs=4M if=./2013-02-09-wheezy-raspbian.img of=/dev/sdd -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/975305 Title: dd writing to an SDHC /dev/mmcblk0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/975305/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
