Windows CE 6.0 : Randomly fail to mount FATFS on Compact Flash

Windows CE 6.0 : Randomly fail to mount FATFS on Compact Flash

Hi

I am working on windows ce 6.0. I have specific problem about compact flash mounting. Mounting of Fat file system on my compact flash card randomly fails with following messages:
Atapi!CDisk::ReadWriteDiskDMA> Failed to wait for interrupt; device(0)
Atapi!CDisk::ReadWriteDiskDMA> Failed to wait for interrupt; device(0)
Read/Write Sector failed (30) on Sector 736
Atapi!CDisk::ReadWriteDiskDMA> Failed to wait for interrupt; device(0)
Atapi!CDisk::ReadWriteDiskDMA> Failed to wait for interrupt; device(0)
Read/Write Sector failed (30) on Sector 736
FATFS!MountVolume: Unable to initialize file system (30)
FATFS!MountVolume: Error in mounting volume. Result = 0x1e
OSAXST1: <<< Unloading Module 'diskcache.dll' (0x828833C0) at address 0xC0410000-0xC0417000 in Process 'NK.EXE' (0x80E7BC80)
Atapi!CDisk::ReadWriteDiskDMA> Failed to wait for interrupt; device(0)
Atapi!CDisk::ReadWriteDiskDMA> Failed to wait for interrupt; device(0)
FSDMGR!MountedVolume_t::~MountedVolume_t: deleting volume (D0707F80)FSDMGR!FileSystemDriver_t::~FileSystemDr iver_t: deleting FSD (D07078C0)OSAXST1: <<< Unloading Module 'exfat.dll' (0x828676B4) at address 0xC03E0000-0xC040D000 in Process 'NK.EXE' (0x80E7BC80)
FSDMGR!PartitionDisk_t::~PartitionDisk_t: deleting partition (D0707B00)FSDMGR!StoreDisk_t::~StoreDisk_t: deleting store (D0704AA0)
OSAXST1: <<< Unloading Module 'mspart.dll' (0x827E6624) at address 0xC04C0000-0xC04CA000 in Process 'NK.EXE' (0x80E7BC80)
FSDMGR!PartitionDisk_t::~PartitionDisk_t: deleting partition (D07053E0)

Probability of getting this error is like once in five reboot.
due to this error i cant get "hard disk" folder and subsequently cant run the executable present on compact flash.

I highly appreciate you inputs on this error.