NRST and NOINIT issue - SRAM data retention - c++

Question

I'm working on the Upsilon Project (https://github.com/UpsilonNumworks/Upsilon) and I have some trouble to implement sram data retention after reset (using nrst pin).
I want to preserve the data on the staticStorageArea, so I did this:
extern "C" {
extern char _bss_records_section_start;
}
static volatile uint32_t * staticStorageArea[sizeof(Storage)/sizeof(uint32_t)] __attribute__((section(".noinit"))) ;
And there is my linker script:
MEMORY {
INTERNAL_FLASH (rx) : ORIGIN = 0x00200000, LENGTH = 64K
SRAM (rw) : ORIGIN = 0x20000000, LENGTH = 256K - 0xfa20
NOINIT (rwx) : ORIGIN = 0x20000000 + 256K - 0xfa20, LENGTH = 0xfa20
EXTERNAL_FLASH (rx) : ORIGIN = 0x90000000, LENGTH = 8M
}
STACK_SIZE = 32K;
FIRST_EXTERNAL_FLASH_SECTOR_SIZE = 4K;
SECTIONS {
.isr_vector_table ORIGIN(INTERNAL_FLASH) : {
KEEP(*(.isr_vector_table))
} >INTERNAL_FLASH
.header : {
KEEP(*(.header))
} >INTERNAL_FLASH
.text.internal_to_external : {
...
} >INTERNAL_FLASH
...
} >INTERNAL_FLASH
.rodata.internal : {
...
} >INTERNAL_FLASH
.exam_mode_buffer ORIGIN(EXTERNAL_FLASH) : {
...
} >EXTERNAL_FLASH
/* External flash memory */
.text.external : {
. = ALIGN(4);
*(.text)
*(.text.*)
} >EXTERNAL_FLASH
.rodata.external : {
*(.rodata)
*(.rodata.*)
} >EXTERNAL_FLASH
.init_array : {
...
} >INTERNAL_FLASH
.data : {
...
} >SRAM AT> INTERNAL_FLASH
.bss : {
...
} >SRAM
.heap : {
...
} >SRAM
.stack : {
...
} >SRAM
.noinit (NOLOAD) : ALIGN(4) {
_bss_records_section_start = .;
KEEP(*(.noinit))
KEEP(*(.noinit*))
_bss_records_section_end = .;
} >NOINIT
/DISCARD/ : {
...
}
}
NOCROSSREFS_TO(.text.external .text.internal);
NOCROSSREFS_TO(.rodata.external .text.internal);
NOCROSSREFS_TO(.text.external .rodata.internal);
NOCROSSREFS_TO(.rodata.external .rodata.internal);
NOCROSSREFS_TO(.text.external .isr_vector_table);
NOCROSSREFS_TO(.rodata.external .isr_vector_table);
NOCROSSREFS_TO(.text.external .header);
NOCROSSREFS_TO(.rodata.external .header);
NOCROSSREFS_TO(.exam_mode_buffer .text.internal);
NOCROSSREFS_TO(.exam_mode_buffer .rodata.internal);
NOCROSSREFS_TO(.exam_mode_buffer .isr_vector_table);
NOCROSSREFS_TO(.exam_mode_buffer .header);
I noticed that after every reset the data in the .noinit section is like corrupted, and I do not understand why... maybe I didn't understand correctly what nrst does in fact ? (on the website it's wrote that the power is "virtually disconnected")