Hello On Thu, May 25, 2017 at 8:25 PM, Ankur Tank <[email protected]> wrote: > Hello Experts, > > We are seeing fragmentation and resultant eMMC partition corruption when > extracting tar file with 81000 files of 4k size. > > Detailed steps are listed in Test_steps.txt file and other attached tars > contain required scripts to big tar file and other test scripts. > > In test is very simple, > 1. we have tar with 81000 number of 4k size file > 2. we ran latest debian from Beagleboard.org from Micro SD Card > 3. Partitioned eMMC in two partitions > 4. Then mounted one of the partition and started extracting big tar file on > that partition. > > This results in below Error. > EXT4-fs error (device mmcblk1p2) in ext4_do_update_inode:4665: Journal has > aborted > [12064.194479] EXT4-fs error (device mmcblk1p2) in add_dirent_to_buf:1921: > Journal has aborted > [12064.209980] EXT4-fs error (device mmcblk1p2) in > ext4_do_update_inode:4665: Journal has aborted > [12064.223765] EXT4-fs error (device mmcblk1p2) in ext4_create:2455: IO > failure > [12064.238221] EXT4-fs error (device mmcblk1p2): > ext4_journal_check_start:56: Detected aborted journal > [12064.247591] EXT4-fs (mmcblk1p2): Remounting filesystem read-only
Did u check the the number of inodes on your device mmcblk1p2 (df -i). The number _must_ be over 81000. You can tune the number of inodes while formatting (man mkfs.ext4) with -N. You should play around with -b and other parameters as well... tar.gz is nothing else than a gzipped tar file. Did you try the same experiment with a uncompressed tar having the same size ? > Strange enough this test works fine on Angstrom OS image Maybe Angstrom mkfs produces a different filesystem with different # of inodes -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAK4vXrsrwMoYqH1%3DVqhAgjgoHwOotcUmY30bo6JE9boA8zu3Ag%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
