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AD9361 reference linux crashes regularly on VC707 microblaze

Question asked by jmueller on May 17, 2017
Latest reply on May 24, 2017 by jmueller

Hi forum,

I am using the VC707 FPGA board with the FMCOMMS3 AD9361 evalution module.

I transferred the vc707_fmcomms2-3_2015_r2 image using "Vivado TCL shell"/XMD as described in the "AD-FMCOMMS2-EBZ Microblaze Quick Start Guide", and connect via UART to the processor. I see the boot log and can login to Busybox. However, after some time, the system crashes with messages like the following:


# Illegal opcode exception in kernel mode.
Oops: opcode exception, sig: 7
CPU: 0 PID: 0 Comm: swapper Not tainted 4.0.0-g1610de3 #65
task: 804162e4 ti: 80412000 task.ti: 80412000
 Registers dump: mode=80413E8C
 r1=60F7765A, r2=80410B2E, r3=001F0200, r4=00000000
 r5=00000000, r6=FFFFFFFF, r7=00000001, r8=5E21C000
 r9=00236DF1, r10=0038AFE8, r11=00000000, r12=FFFFFFFF
 r13=80C90660, r14=800369D8, r15=00000001, r16=00000000
 r17=80410B4E, r18=000184C8, r19=00000077, r20=00000000
 r21=00413F24, r22=60F7765A, r23=00000000, r24=00000000
 r25=00000000, r26=00000000, r27=00000000, r28=00000009
 r29=01000000, r30=00000380, r31=804162E4, rPC=80410B4E
 msr=800046A4, ear=62E0AE00, esr=00000077, fsr=60F82230
Kernel panic - not syncing: Aiee, killing interrupt handler!
---[ end Kernel panic - not syncing: Aiee, killing interrupt handler!



Does anybody know why this happens?


Thanks, Jan