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请问楼主这种故障现象是不是运行过程中出现的，也就是说启动后一段时间内是好的，但过一段时间就出现这一故障？还是一启动就有这个问题？

如果是中途出现这个问题，可能是内存碎片方面的问题。

如果是一开始就有这个问题，则很有可能是BSP的ATA配置还有问题。

请问楼主这种故障现象是不是运行过程中出现的，也就是说启动后一段时间内是好的，但过一段时间就出现这一故障？还是一启动就有这个问题？

如果是中途出现这个问题，可能是内存碎片方面的问题。

如果是一开始就有这个问题，则很有可能是BSP的ATA配置还有问题。

终于有人帮忙了，启动后出现的，只要我运行程序，就出现这种问题，如果是内存碎片，该如何配置，我动态开了5个数组，每个数组是4k，以前没有问题，不知道为什么现在老是有问题

Disk Cache, ?
Cached Block I/O Device, handle=0x1f6d082c
Description: Disk Cache - LRU
Disk size 1440 Kbytes, RAM Size 131072 bytes
Block size 512, heads 2, blocks/track 18, # of blocks 2880
partition offset 0 blocks, type Removable, Media changed No
Total cache Blocks 181, 0 blocks (%0) dirty
Tunable Params:
Bypass Threshold 24, Max Dirty 128, Read Ahead 22 blocks, Sync interval 1 sec
Hit Stats: Cookie Hits 0 Miss 0, Hash size 269 Hits 0 Miss 0
LRU Hits 0, Misses 0, Hit Ratio %0
Write Sstats: Foreground 0, Background 0, Hidden 0, Forced 0

Subordinate Device Start:
Cached Block I/O Device, handle=0x1f6f08b8
Description: Block Device
Disk size 1440 Kbytes, RAM Size 0 bytes
Block size 512, heads 2, blocks/track 18, # of blocks 2880
partition offset 0 blocks, type Removable, Media changed No
Subordinate Device End:
Disk Cache, /ata0a:
Cached Block I/O Device, handle=0x1f6aec60
Description: Disk Cache - LRU
Disk size 37 Gbytes, RAM Size 131072 bytes
Block size 512, heads 16, blocks/track 63, # of blocks 78177792
partition offset 0 blocks, type Removable, Media changed No
Total cache Blocks 181, 0 blocks (%0) dirty
Tunable Params:
Bypass Threshold 24, Max Dirty 128, Read Ahead 22 blocks, Sync interval 1 sec
Hit Stats: Cookie Hits 0 Miss 0, Hash size 269 Hits 0 Miss 0
LRU Hits 0, Misses 0, Hit Ratio %0
Write Sstats: Foreground 0, Background 0, Hidden 0, Forced 0

Subordinate Device Start:
Cached Block I/O Device, handle=0x1f6cecec
Description: Block Device
Disk size 37 Gbytes, RAM Size 0 bytes
Block size 512, heads 16, blocks/track 63, # of blocks 78177792
partition offset 0 blocks, type Removable, Media changed No
Subordinate Device End:
Disk Cache, /ata1a:
Cached Block I/O Device, handle=0x1f68ce40
Description: Disk Cache - LRU
Disk size 115 Mbytes, RAM Size 131072 bytes
Block size 512, heads 8, blocks/track 39, # of blocks 237432
partition offset 0 blocks, type Removable, Media changed No
Total cache Blocks 181, 0 blocks (%0) dirty
Tunable Params:
Bypass Threshold 24, Max Dirty 128, Read Ahead 22 blocks, Sync interval 1 sec
Hit Stats: Cookie Hits 0 Miss 0, Hash size 269 Hits 0 Miss 0
LRU Hits 0, Misses 0, Hit Ratio %0
Write Sstats: Foreground 0, Background 0, Hidden 0, Forced 0

Subordinate Device Start:
Cached Block I/O Device, handle=0x1f6acecc
Description: Block Device
Disk size 115 Mbytes, RAM Size 0 bytes
Block size 512, heads 8, blocks/track 39, # of blocks 237432
partition offset 0 blocks, type Removable, Media changed No
Subordinate Device End:
value = 45 = 0x2d = '-'

“只要你一运行程序”就出错，那时候内存应该还有的。可以在运行前或者运行中添加memShow不断检查内存使用情况，看到底消耗情况如何。

另外，检查一下是不是因为采集数据的产生速度太快的原因，放慢或者减少采集数据的频率和量，看情况是否有所改善或者故障消失。

啊，谈不上帮忙啊，共同探讨下吧。