I'm using the Beaglebone Black as a reference design. I have a board with a TI Sitara AM3356 (AM3356BZCZ) running the TI Arago 3.12.10 distro. I'm trying to manually program an eMMC (MTFC4GMVEA-0M). I have the eMMC properly formatted with the appropriate partitions and filesystem types but every time I try to copy files on to the rootfs, I get the following kernel bug:
root@(none):/media/mmc2# cp -rf /media/usb/flashfs/* /media/mmc2/* [ 525.011413] ------------[ cut here ]------------ [ 525.015992] Kernel BUG at c00fcfb8 [verbose debug info unavailable] [ 525.022162] Internal error: Oops - BUG: 0 [#1] ARM [ 525.026877] Modules linked in: musb_dsps omap2430 musb_hdrc musb_am335x [ 525.033428] CPU: 0 PID: 1036 Comm: cp Not tainted 3.12.10-ti2013.12.01 #34 [ 525.040196] task: dde60b40 ti: ddd1e000 task.ti: ddd1e000 [ 525.045527] PC is at _submit_bh+0x1e0/0x248 [ 525.049646] LR is at submit_bh+0x14/0x18 [ 525.053508] pc : [<c00fcfb8>] lr : [<c00fd034>] psr: 60000013 [ 525.053508] sp : ddd1fb40 ip : 00000000 fp : ddd1fb74 [ 525.064804] r10: 00000060 r9 : ddd1fc1c r8 : dd2a72d0 [ 525.069945] r7 : ddd1fc1c r6 : 000000e5 r5 : 00000000 r4 : 000000e5 [ 525.076367] r3 : 00000004 r2 : 00000000 r1 : ddd1fc1c r0 : 00000060 [ 525.082792] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 525.089814] Control: 10c5387d Table: 99650019 DAC: 00000015 [ 525.095467] Process cp (pid: 1036, stack limit = 0xddd1e240) [ 525.101035] Stack: (0xddd1fb40 to 0xddd20000) [ 525.105330] fb40: 000000e4 00000000 000000e5 000000e5 00000000 000000e5 ddd1fc1c dd2a72d0 [ 525.113382] fb60: ddd1fc1c ddd1fc1c ddd1fb84 ddd1fb78 c00fd034 c00fcde4 ddd1fbec ddd1fb88 [ 525.121435] fb80: c01577f0 c00fd02c 00001000 ddb04c00 dd2a72d0 00000035 00000103 00000000 [ 525.129487] fba0: 000000e3 00000000 ddd1fbc4 dd2a72d0 000000e4 00000000 000000e4 00000000 [ 525.137540] fbc0: c009ce08 dd2a72d0 dd2a72d0 ddd1fc1c dd2883c0 c08bf1c0 dd2a72d0 00001000 [ 525.145593] fbe0: ddd1fc0c ddd1fbf0 c015b08c c015761c dd2a72d0 dd2883c0 dd2883c0 ddb04c00 [ 525.153645] fc00: ddd1fc4c ddd1fc10 c015b128 c015b064 00000001 c08bf1c0 ddd1fc4c 00000004 [ 525.161698] fc20: 00000800 00000000 00000001 dd2a72d0 dd2883c0 00035000 00000000 c08bf1c0 [ 525.169750] fc40: c00fc2e8 ddd1fc50 c015dde8 c015b100 00000000 dd2883c1 00000007 dd2a72d0 [ 525.177803] fc60: ddd1fc84 ddd1fc70 c00f69f8 c015ddb0 00035000 00000000 ddd1fcc4 ddd1fc88 [ 525.185855] fc80: c00fe7a8 c00f69d0 00001000 00001000 c08bf1c0 00000000 dd2a72d0 00035000 [ 525.193907] fca0: 00000000 00000000 00001000 dd2a72d0 dd2a7394 dd2883c0 ddd1fd1c ddd1fcc8 [ 525.201959] fcc0: c015cfa8 c00fe73c 00001000 00001000 c08bf1c0 00000000 c00226a8 00001000 [ 525.210012] fce0: c0f8e000 dddce8c0 00036000 00000000 ddd1fd1c 00001000 dd2a7394 00001000 [ 525.218064] fd00: 00000000 00001000 ddd1e000 c05ad5b8 ddd1fd94 ddd1fd20 c009d530 c015cf24 [ 525.226116] fd20: 00001000 00001000 c08bf1c0 00000000 ddd1fd64 00000000 ddd1e020 dddce8c0 [ 525.234168] fd40: 00000000 ddd1e020 00035000 00000000 c08bf1c0 00000000 ddd1fee8 00000001 [ 525.242220] fd60: 00000000 00001000 386d458b dddce8c0 00001000 dd2a7394 ddd1fef0 ddd1fee8 [ 525.250273] fd80: ddd1ff10 dd2a72d0 ddd1fe0c ddd1fd98 c009ee08 c009d430 00035000 00000000 [ 525.258325] fda0: ddd1ff10 00001000 00000000 c0008760 ffffffff 000007ff 00000420 ddd1e018 [ 525.266378] fdc0: e3a00000 ebffeec8 00035000 00000000 00000000 00000001 ddf21300 00001000 [ 525.274430] fde0: ddea5000 00035000 00000000 dd2a733c 00000001 ddd1fef0 dddce8c0 ddd1fee8 [ 525.282483] fe00: ddd1fe44 ddd1fe10 c009f0d0 c009ec18 ddd1fe4c ddd1fe20 c00eb4dc 00035000 [ 525.290536] fe20: 00000000 ddd1ff78 00001000 ddd1fee8 00000001 ddd1fef0 ddd1fedc ddd1fe48 [ 525.298588] fe40: c0153b90 c009f080 00035000 00000000 c0015084 c004bb0c 00000080 fa200000 [ 525.306640] fe60: 00001000 ddd1fee8 ddd1fef0 00000034 00001000 00000036 00036000 00000000 [ 525.314692] fe80: 00035000 00000000 00000000 ddf21348 00000001 00000001 00001000 00000000 [ 525.322744] fea0: 00001000 00000000 bec8f65c 00000000 ddf21308 00035000 00000000 ddd1ff78 [ 525.330796] fec0: 00001000 00000000 00001000 00000000 ddd1ff44 ddd1fee0 c00d3d7c c0153ae4 [ 525.338849] fee0: 00035000 00000000 bec8e65c 00001000 dddce8c0 00000000 00000000 00000000 [ 525.346900] ff00: dde60b40 00000000 00000000 00000000 00035000 00000000 00001000 00000000 [ 525.354953] ff20: 00000000 00000000 00001000 dddce8c0 bec8e65c ddd1ff78 ddd1ff74 ddd1ff48 [ 525.363005] ff40: c00d44bc c00d3d04 00000000 00000000 00035000 00000000 dddce8c0 bec8e65c [ 525.371057] ff60: 00000000 00001000 ddd1ffa4 ddd1ff78 c00d4b08 c00d440c 00035000 00000000 [ 525.379110] ff80: 00001000 bec8e65c 00000005 00000004 c0014328 ddd1e000 00000000 ddd1ffa8 [ 525.387162] ffa0: c0014180 c00d4ad0 00001000 bec8e65c 00000005 bec8e65c 00001000 00000000 [ 525.395214] ffc0: 00001000 bec8e65c 00000005 00000004 00095778 00000001 00000000 00000004 [ 525.403267] ffe0: 00000000 bec8e624 00012c6c 4859e64c 60000010 00000005 97466229 e479d00d [ 525.411310] Backtrace: [ 525.413735] [<c00fcdd8>] (_submit_bh+0x0/0x248) from [<c00fd034>] (submit_bh+0x14/0x18) [ 525.421633] [<c00fd020>] (submit_bh+0x0/0x18) from [<c01577f0>] (__ext4_get_inode_loc+0x1e0/0x44c) [ 525.430462] [<c0157610>] (__ext4_get_inode_loc+0x0/0x44c) from [<c015b08c>] (ext4_reserve_inode_write+0x34) [ 525.440483] [<c015b058>] (ext4_reserve_inode_write+0x0/0x9c) from [<c015b128>] (ext4_mark_inode_dirty+0x34) [ 525.450578] r7:ddb04c00 r6:dd2883c0 r5:dd2883c0 r4:dd2a72d0 [ 525.456179] [<c015b0f4>] (ext4_mark_inode_dirty+0x0/0x1b4) from [<c015dde8>] (ext4_dirty_inode+0x44/0x68) [ 525.465590] r8:c08bf1c0 r7:00000000 r6:00035000 r5:dd2883c0 r4:dd2a72d0 [ 525.472211] Backtrace aborted due to bad frame pointer <c00fc2e8> [ 525.478213] Code: e3c22b02 e5892000 e121f003 eaffffa5 (e7f001f2) [ 525.484217] ---[ end trace 63f265286558cc62 ]--- [ 525.488761] Kernel panic - not syncing: Fatal exception [ 525.493902] Rebooting in 5 seconds..
I'd like to figure out what's causing this bug and try to write to the eMMC so that I can boot from on board flash. Any help is greatly appreciated.
