Exception occurs when using JPEG encoder

Hello,

What does this exception mean? How can it be avoided?

[CortexM3_RTOS_0] ti.sysbios.family.arm.m3.Hwi: line 983: E_noIsr: id = 38, pc = 9394ae40
[CortexM3_RTOS_0] Exception occurred in background thread.
[CortexM3_RTOS_0] Exception occurred in ThreadType_Task.
[CortexM3_RTOS_0] Task handle: 0x8a900408.
[CortexM3_RTOS_0] Task stack base: 0x8a900450.
[CortexM3_RTOS_0] Task stack size: 0x50000.
[CortexM3_RTOS_0] R0 = 0x00000000  R8  = 0x5805a800
[CortexM3_RTOS_0] R1 = 0x00000000  R9  = 0x000047d8
[CortexM3_RTOS_0] R2 = 0x8a959368  R10 = 0x590047b4
[CortexM3_RTOS_0] R3 = 0x9394ae25  R11 = 0x939380b0
[CortexM3_RTOS_0] R4 = 0x590047dc  R12 = 0x590047d8
[CortexM3_RTOS_0] R5 = 0x8a959100  SP(R13) = 0x8a94fd30
[CortexM3_RTOS_0] R6 = 0x8a959104  LR(R14) = 0x939393a3
[CortexM3_RTOS_0] R7 = 0x939a1e38  PC(R15) = 0x9394ae40
[CortexM3_RTOS_0] PSR = 0x61000000
[CortexM3_RTOS_0] ICSR = 0x0440f826
[CortexM3_RTOS_0] MMFSR = 0x00
[CortexM3_RTOS_0] BFSR = 0x00
[CortexM3_RTOS_0] UFSR = 0x0000
[CortexM3_RTOS_0] HFSR = 0x00000000
[CortexM3_RTOS_0] DFSR = 0x00000000
[CortexM3_RTOS_0] MMAR = 0xe000ed34
[CortexM3_RTOS_0] BFAR = 0xe000ed38
[CortexM3_RTOS_0] AFSR = 0x00000000
[CortexM3_RTOS_0] Terminating execution...

Br,
Erkka