RTEMS_FATAL_SOURCE_EXCEPTION during startup

[Петр Борисенко]

Hello and Happy new year!
I am getting an error during startup:
RTEMS_FATAL_SOURCE_EXCEPTION
Catching it in _ARM_Exception_default.
The bsp is `arm/stm32f4`.
Here is contains of CPU_Exception_frame:
register_r0 uint32_t 0x80139bc
register_r1 uint32_t 0
register_r2 uint32_t 0
register_r3 uint32_t 76
register_r4 uint32_t 0
register_r5 uint32_t 0
register_r6 uint32_t 0
register_r7 uint32_t 0
register_r8 uint32_t 0
register_r9 uint32_t 0
register_r10 uint32_t 0
register_r11 uint32_t 0
register_r12 uint32_t 0
register_sp uint32_t 536909088
register_lr void * 0x80001c3 <bsp_start_hook_0_done+4>
register_pc void * 0x8013f08 <_svfprintf_r+8152>
register_xpsr uint32_t 16777216
vector uint32_t 3
vfp_context const ARM_VFP_context * 0x0
reserved_for_stack_alignment uint32_t 3522771716
&Console_Port_Minor rtems_device_minor_number * 0x20006988
<Console_Port_Minor>
*&Console_Port_Minor rtems_device_minor_number 1363452156

What could it be? Any common reasons? Or what additional info should I
provide?

Also it would be really appreciated if someone will help me export/build
bsp as a debuggable source tree.

Best regards.
Peter Borisenko
Awesome Technologies, Ltd.
http://awsmtek.com
hardware at awsmtek.com
+79062165482