I saw this again on first boot with image from 2011-04-07. Not sure that the stack i exactly the same so, I'll repost it here.

So far, I've seen it once, will check if it happens as often as stated above.

[    3.427764] Unhandled fault: imprecise external abort (0x1406) at 0x8766e6d8
[    3.438354] Internal error: : 1406 [#1] SMP
[    3.445861] last sysfs file:
[    3.452056] Modules linked in:
[    3.458312] CPU: 0    Not tainted  (2.6.38-1001-linaro-omap #2-Ubuntu)
[    3.468353] PC is at configure_dispc+0x22/0x194
[    3.476287] LR is at configure_dispc+0x27/0x194
[    3.484191] pc : [<c02aef72>]    lr : [<c02aef77>]    psr: 200000b3
[    3.484191] sp : da849e60  ip : ffffffff  fp : 00000000
[    3.502777] r10: c06a0b90  r9 : da849e6d  r8 : da849e6a
[    3.511535] r7 : 00000003  r6 : 00000003  r5 : 00000000  r4 : 00000001
[    3.521667] r3 : 02100004  r2 : 00000005  r1 : 80000093  r0 : 00000001
[    3.531707] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA Thumb  Segment kernel
[    3.545959] Control: 50c53c7d  Table: 8000404a  DAC: 00000015
[    3.555236] Process swapper (pid: 1, stack limit = 0xda8482f8)
[    3.564605] Stack: (0xda849e60 to 0xda84a000)
[    3.572448] 9e60: c006a4cd c068f610 80000093 c006001f c078e608 00000000 c078f978 c078f984
[    3.587615] 9e80: 68008000 d9d759c0 00000088 c06a0b90 00000000 c02af267 c078f9c4 000001e0
[    3.602813] 9ea0: 00000080 c078f984 00000000 00000000 00000000 60000013 da82c23c d9dec000
[    3.617980] 9ec0: c078faf8 c06a3f70 00000003 d9dec488 00000000 00000000 00000000 c02b32c1
[    3.633209] 9ee0: daa78c30 00000000 c06b7410 c06a3f70 c06a3f78 c0793dc4 c06b7410 c06a3f70
[    3.648651] 9f00: 00000000 c0024119 00000000 c02d92f9 c02d92e9 c02d8817 c06a4040 c06a3f70
[    3.664184] 9f20: c06b7410 c06a3fa4 00000000 c02d8a0f 00000000 c06a3f70 c06b7410 c02d8a67
[    3.679779] 9f40: c06b7410 c02d8a1d 00000000 c02d7fd9 da82c13c daa6ecf4 c06b7410 c06bcaf0
[    3.695617] 9f60: d9e73900 c02d8523 c059bd90 c0038da8 da848000 c06b7410 c0038da8 da848000
[    3.711669] 9f80: 00000000 c0024119 00000000 c02d8bb1 c06d3f80 c0038da8 da848000 00000000
[    3.728057] 9fa0: c0024119 c0024139 00000000 c00514e1 00000000 271beb3a da82a6c0 c06a8dd0
[    3.744598] 9fc0: 00000192 da806300 c0038d88 c0038da8 da806300 00000033 00000000 00000000
[    3.761474] 9fe0: 00000000 c0008a8d 00000000 c000899d c00568a9 c00568a9 af3a9fb8 15020484
[    3.778472] [<c02aef72>] (configure_dispc+0x22/0x194) from [<c02af267>] (omap_dss_mgr_apply+0x183/0x378)
[    3.796997] [<c02af267>] (omap_dss_mgr_apply+0x183/0x378) from [<c02b32c1>] (omapfb_probe+0x1c1/0x2e8)
[    3.815521] [<c02b32c1>] (omapfb_probe+0x1c1/0x2e8) from [<c02d92f9>] (platform_drv_probe+0x11/0x14)
[    3.833862] [<c02d92f9>] (platform_drv_probe+0x11/0x14) from [<c02d8817>] (really_probe+0x43/0xfc)
[    3.852050] [<c02d8817>] (really_probe+0x43/0xfc) from [<c02d8a0f>] (driver_probe_device+0x3b/0x48)
[    3.870330] [<c02d8a0f>] (driver_probe_device+0x3b/0x48) from [<c02d8a67>] (__driver_attach+0x4b/0x4c)
[    3.888946] [<c02d8a67>] (__driver_attach+0x4b/0x4c) from [<c02d7fd9>] (bus_for_each_dev+0x29/0x44)
[    3.907287] [<c02d7fd9>] (bus_for_each_dev+0x29/0x44) from [<c02d8523>] (bus_add_driver+0x117/0x1a0)
[    3.925750] [<c02d8523>] (bus_add_driver+0x117/0x1a0) from [<c02d8bb1>] (driver_register+0x3d/0xc8)
[    3.944152] [<c02d8bb1>] (driver_register+0x3d/0xc8) from [<c0024139>] (omapfb_init+0x21/0x38)
[    3.962097] [<c0024139>] (omapfb_init+0x21/0x38) from [<c00514e1>] (do_one_initcall+0x25/0x118)
[    3.980163] [<c00514e1>] (do_one_initcall+0x25/0x118) from [<c0008a8d>] (kernel_init+0xf1/0x160)
[    3.998321] [<c0008a8d>] (kernel_init+0xf1/0x160) from [<c00568a9>] (kernel_thread_exit+0x1/0x8)
[    4.016510] Code: f10d 080a 4625 4620 (f7fb)
[    4.025573] ---[ end trace f57e1ac86e07b1ee ]---
[    4.035003] Kernel panic - not syncing: Attempted to kill init!
[    4.045623] [<c005af11>] (unwind_backtrace+0x1/0x9c) from [<c0454d71>] (panic+0x51/0x12c)
[    4.062805] [<c0454d71>] (panic+0x51/0x12c) from [<c0087f23>] (forget_original_parent+0x1a7/0x1a8)
[    4.080841] [<c0087f23>] (forget_original_parent+0x1a7/0x1a8) from [<c0087f31>] (exit_notify+0xd/0xe8)
[    4.099243] [<c0087f31>] (exit_notify+0xd/0xe8) from [<c008868d>] (do_exit+0x131/0x27c)
[    4.116241] [<c008868d>] (do_exit+0x131/0x27c) from [<c0058a87>] (die+0xa3/0xc0)
[    4.132568] [<c0058a87>] (die+0xa3/0xc0) from [<c0051353>] (do_DataAbort+0x6f/0x70)
[    4.149169] [<c0051353>] (do_DataAbort+0x6f/0x70) from [<c005574b>] (__dabt_svc+0x4b/0x80)
[    4.166412] Exception stack(0xda849e18 to 0xda849e60)
[    4.175994] 9e00:                                                       00000001 80000093
[    4.192840] 9e20: 00000005 02100004 00000001 00000000 00000003 00000003 da849e6a da849e6d
[    4.209564] 9e40: c06a0b90 00000000 ffffffff da849e60 c02aef77 c02aef72 200000b3 ffffffff
[    4.226287] [<c005574b>] (__dabt_svc+0x4b/0x80) from [<c02aef72>] (configure_dispc+0x22/0x194)
[    4.243438] [<c02aef72>] (configure_dispc+0x22/0x194) from [<c02af267>] (omap_dss_mgr_apply+0x183/0x378)
[    4.261535] [<c02af267>] (omap_dss_mgr_apply+0x183/0x378) from [<c02b32c1>] (omapfb_probe+0x1c1/0x2e8)
[    4.279541] [<c02b32c1>] (omapfb_probe+0x1c1/0x2e8) from [<c02d92f9>] (platform_drv_probe+0x11/0x14)
[    4.297576] [<c02d92f9>] (platform_drv_probe+0x11/0x14) from [<c02d8817>] (really_probe+0x43/0xfc)
[    4.315521] [<c02d8817>] (really_probe+0x43/0xfc) from [<c02d8a0f>] (driver_probe_device+0x3b/0x48)
[    4.333557] [<c02d8a0f>] (driver_probe_device+0x3b/0x48) from [<c02d8a67>] (__driver_attach+0x4b/0x4c)
[    4.351898] [<c02d8a67>] (__driver_attach+0x4b/0x4c) from [<c02d7fd9>] (bus_for_each_dev+0x29/0x44)
[    4.369964] [<c02d7fd9>] (bus_for_each_dev+0x29/0x44) from [<c02d8523>] (bus_add_driver+0x117/0x1a0)
[    4.388092] [<c02d8523>] (bus_add_driver+0x117/0x1a0) from [<c02d8bb1>] (driver_register+0x3d/0xc8)
[    4.406158] [<c02d8bb1>] (driver_register+0x3d/0xc8) from [<c0024139>] (omapfb_init+0x21/0x38)
[    4.423797] [<c0024139>] (omapfb_init+0x21/0x38) from [<c00514e1>] (do_one_initcall+0x25/0x118)
[    4.441650] [<c00514e1>] (do_one_initcall+0x25/0x118) from [<c0008a8d>] (kernel_init+0xf1/0x160)
[    4.459838] [<c0008a8d>] (kernel_init+0xf1/0x160) from [<c00568a9>] (kernel_thread_exit+0x1/0x8)
[    4.478057] CPU1: stopping
[    4.485290] [<c005af11>] (unwind_backtrace+0x1/0x9c) from [<c00512cf>] (do_IPI+0xbf/0xd4)
[    4.502685] [<c00512cf>] (do_IPI+0xbf/0xd4) from [<c00557b3>] (__irq_svc+0x33/0x100)
[    4.519561] Exception stack(0xda861f90 to 0xda861fd8)
[    4.529235] 1f80:                                     00000020 c067abec da861fd8 00000000
[    4.546386] 1fa0: da860000 c06d4044 c045b0f4 c067fb7c c067fd1c 411fc092 00000000 00000000
[    4.563446] 1fc0: 00000001 da861fd8 c00568ed c00568ee 60000133 ffffffff
[    4.574676] [<c00557b3>] (__irq_svc+0x33/0x100) from [<c00568ee>] (default_idle+0x1a/0x1c)
[    4.591766] [<c00568ee>] (default_idle+0x1a/0x1c) from [<c0056a7b>] (cpu_idle+0x8f/0xb4)
[    4.608642] [<c0056a7b>] (cpu_idle+0x8f/0xb4) from [<80452b4d>] (0x80452b4d)