SD Card hang

I’ve have a recent problem that has developed on by BBB Rev C+.

I’m running Ubuntu 14.04 off SD card. I’m experiencing what appears to be failed access to the SD
card. I’ve attached a console cable and there are no messages there. I do see a message in the kernel
log.

[ 242.203719] INFO: task kworker/u2:1:21 blocked for more than 120 seconds.
[ 242.210883] Tainted: G O 3.14.4.1-bone-armhf.com #1
[ 242.217578] “echo 0 > /proc/sys/kernel/hung_task_timeout_secs” disables this message.
[ 242.225848] kworker/u2:1 D c065b8e8 0 21 2 0x00000000
[ 242.225930] Workqueue: writeback bdi_writeback_workfn (flush-179:0)
[ 242.226021] [] (__schedule) from [] (io_schedule+0xa4/0x110)
[ 242.226078] [] (io_schedule) from [] (sleep_on_buffer+0x8/0x10)
[ 242.226130] [] (sleep_on_buffer) from [] (__wait_on_bit+0x54/0xa0)
[ 242.226179] [] (__wait_on_bit) from [] (out_of_line_wait_on_bit+0x78/0x84)
[ 242.226227] [] (out_of_line_wait_on_bit) from [] (ext4_wait_block_bitmap+0x48/0xc0)
[ 242.226283] [] (ext4_wait_block_bitmap) from [] (ext4_mb_init_cache+0x170/0x5d0)
[ 242.226330] [] (ext4_mb_init_cache) from [] (ext4_mb_init_group+0xf8/0x19c)
[ 242.226374] [] (ext4_mb_init_group) from [] (ext4_mb_good_group+0xb0/0x184)
[ 242.226421] [] (ext4_mb_good_group) from [] (ext4_mb_regular_allocator+0x134/0x3a4)
[ 242.226469] [] (ext4_mb_regular_allocator) from [] (ext4_mb_new_blocks+0x234/0x514)
[ 242.226513] [] (ext4_mb_new_blocks) from [] (ext4_ext_map_blocks+0x9f4/0xe74)
[ 242.226561] [] (ext4_ext_map_blocks) from [] (ext4_map_blocks+0x290/0x45c)
[ 242.226608] [] (ext4_map_blocks) from [] (mpage_map_and_submit_extent+0x130/0x678)
[ 242.226654] [] (mpage_map_and_submit_extent) from [] (ext4_writepages+0x4e4/0x63c)
[ 242.226714] [] (ext4_writepages) from [] (__writeback_single_inode+0x7c/0x210)
[ 242.226766] [] (__writeback_single_inode) from [] (writeback_sb_inodes+0x204/0x394)
[ 242.226816] [] (writeback_sb_inodes) from [] (__writeback_inodes_wb+0x68/0xa4)
[ 242.226865] [] (__writeback_inodes_wb) from [] (wb_writeback+0x154/0x28c)
[ 242.226910] [] (wb_writeback) from [] (bdi_writeback_workfn+0x208/0x3e8)
[ 242.226967] [] (bdi_writeback_workfn) from [] (process_one_work+0x254/0x3b8)
[ 242.227017] [] (process_one_work) from [] (worker_thread+0x23c/0x388)
[ 242.227067] [] (worker_thread) from [] (kthread+0xd8/0xec)
[ 242.227120] [] (kthread) from [] (ret_from_fork+0x14/0x3c)
[ 242.227179] INFO: task jbd2/mmcblk0p2-:83 blocked for more than 120 seconds.

Any programs cached in memory can still be used. Anything requiring a read off mmcblk0p2 exhibits this behavior.

Is this a failing SD card? To test another one I need to buy one.

Chris