I am using 2.6.30 linux kernel version ... On Fri, Jul 9, 2010 at 9:20 AM, Madhav Chauhan <madhav.imsec@xxxxxxxxx> wrote: > On Thu, Jul 8, 2010 at 11:38 PM, hardik patel <hk5patel@xxxxxxxxx> wrote: >> Hi Madhav, >> >> thanks for your interest... I have card detect register so mmc_get_cd >> function i can check whether card is inserted or not ... so in sd host >> controller driver can detect that properly... but i think block driver >> does not detect that .... where i have to flush my request queue... i >> have gone through block.c and queue.c file which generate mmc_block.ko >> file but not sure where to modify... can any one guide me more > > Which Kernel version you are using?? >> >> >> On Thu, Jul 8, 2010 at 6:35 PM, MADHAV SINGHCHAUHAN >> <singh.madhav@xxxxxxxxxxx> wrote: >>> Card removal not detected by driver? >>> You should see a line of log if card removal is detected: >>> card xxxx removed >>> >>> Would you describe how do you detect card removal/insertion on your board? >>> >>> Regards, >>> -Ethan >>> >>> On Thu, Jul 8, 2010 at 6:05 PM, hardik patel <hk5patel@xxxxxxxxx> wrote: >>>> I have sd card on board ... During recording/writing SD card, remove >>>> SD card ... then i am getting endless error in dmesg as below : >>>> >>>> end_request: I/O error, dev mmcblk0, sector 24 >>>> FAT: FAT read failed (blocknr 8) >>>> mmcblk0: error -110 sending status comand<3>mmcblk0: error -110 >>>> sending read/write command, response 0x0, card status 0x0 >>>> Block mmc_blk_issue_rq function call 346 >>>> end_request: I/O error, dev mmcblk0, sector 4 >>>> FAT: FAT read failed (blocknr 4) >>>> MMC: killing requests for dead queue >>>> end_request: I/O error, dev mmcblk0, sector 8 >>>> FAT: FAT read failed (blocknr 8) >>>> FAT: FAT read failed (blocknr 4) >>>> FAT: FAT read failed (blocknr 8) >>>> FAT: FAT read failed (blocknr 4) >>>> FAT: FAT read failed (blocknr 8) >>>> FAT: FAT read failed (blocknr 4) >>>> FAT: FAT read failed (blocknr 8) >>>> >>>> How to stop this message ... what is ideal situation when we remove >>>> card while writing ...... can u help me what to do ? >>>> >>>>>When we insert the card hot plug dameon start sending the request to block layer and kernel block layer >>>>>start sending the request to card.But when you remove the card in between request queue is not flushed properly.. >>>>>so you need to flush your request queue at appropriate time.Also please note that even that you flush your request queue >>>>>at appropriate time some messages will come. >>>> where is the problem here? sd host controler driver problem or block >>>> driver problem or file system problem >>>> >>>> Note: I have formatted sd card with FAT32 file system . >>>> >>>> >>>> >>>> With EXT3 File system : >>>> >>>> Remove SD card while writing/recording we got error messages like >>>> below. but this is not endless. After some time it stops. >>>> >>>> ============================== >>>> ============= >>>> end_request: I/O error, dev mmcblk0, sector 156536 >>>> mmcblk0: error -110 sending status comand<3>mmcblk0: error -110 >>>> sending read/write command, response 0x0, card status 0x0 >>>> mmcblk0: error -110 requesting status >>>> end_request: I/O error, dev mmcblk0, sector 4736 >>>> Aborting journal on device mmcblk0p1. >>>> ext3_abort called. >>>> EXT3-fs error (device mmcblk0p1): ext3_journal_start_sb: Detected >>>> aborted journal >>>> Remounting filesystem read-only >>>> end_request: I/O error, dev mmcblk0, sector 4448 >>>> journal commit I/O error >>>> =========================================== >>>> -- >>>> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in >>>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>>> More majordomo info at ?http://vger.kernel.org/majordomo-info.html >>>> >>> -- >>> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in >>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>> >>> >>> >>> >>> >>> >>> >>> >> >> >> >> -- >> Regards, >> Hardik >> >> "If you are doing what you have always been doing then expect what you >> have always been getting." >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > -- Regards, Hardik "If you are doing what you have always been doing then expect what you have always been getting." -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
