BBB/11-CURRENT: Fatal kernel mode data abort: 'External Non-Linefetch Abort (S)'

[Winston Smith]

Hmmm ... seem to be getting this when booting from SD using the 1Ghz
patched u-boot:

musbotg0: <TI AM33xx integrated USB OTG controller> mem
0x47400000-0x47400fff,0x47401000-0x474012ff,0x47401300-0x474013ff,0x47401400-0x474017ff,0x47401800-0x47401aff,0x47401b00-0x47401bff,0x47401c00-0x47401fff
irq 17,18,19 on simplebus0
musbotg0: TI AM335X USBSS v0.0.13
Fatal kernel mode data abort: 'External Non-Linefetch Abort (S)'
trapframe: 0xc0792b60
FSR=00001008, FAR=ffa00010, spsr=40000193
r0 =00000000, r1 =ffa00000, r2 =00000010, r3 =c0538810
r4 =c2667e00, r5 =c2751000, r6 =c27533b0, r7 =c27533cc
r8 =c0666590, r9 =00000001, r10=00000000, r11=c0792bf0
r12=c0538828, ssp=c0792bb0, slr=c0556f10, pc =c0538810

[ thread pid 0 tid 100000 ]
Stopped at      generic_bs_r_4: ldr     r0, [r1, r2]
db>


Seems to boot ok from eMMC (I have an unpatched 2013.04 u-boot), but
it is booting FreeBSD-11-CURRENT (r265163) from the SD card.

Funny, this same SD card booted just fine several times yesterday and
the day before.

Any ideas?

-W