CMEMK Error: Failed to find a pool which fits 622080

在运行DM365 DVSDK中例程或者借用DVSDK运行自己的程序的时候,运行可执行文件时候可能会遇到这种问题

终端错误如下:

CMEMK Error: Failed to find a pool which fits 622080

CMEM Error: getPool: Failed to get a pool fitting a size 622080
Failed to allocate memory.
Error: Failed to allocate contiguous buffers
encode_live555: BufTab.c:430: BufTab_getBuf: Assertion `hBufTab' failed.

Aborted


显示的是内存空间不够

此时,最先考虑的是自己程序有没有内存泄露,或者是否循环运行了buffer申请的代码等,

如果都没有就可能真的是内存不够了,可以参考如下的解决办法:注意要排除非自己程序因素后才用此种方法,因为不然的话治标不治本

以下内容参考自:http://blog.csdn.net/talent258/article/details/5725720  但是我按照一下方法试了下减小系统内存扩大用户内存,但是在执行DVSDK encode例程时显示的是capture线程无法创建,不知为何


按照上面的方法,进行jpgdec的演示:

root@SEED_DVS365# ./jpgdec-r

出错,如下:

CMEMK Error: Failed to find a pool which fits 3686400

CMEM Error: getPCMEMK Error: Failed to find a pool which fits 3686400

ool: Failed to get a pool fitting a size 3686400

CMEM Error: getPool: Failed to get a pool fitting a size 3686400

Segmentation fault

 

是内存方面出错,貌似没有大小为3686400的连续内存块,查看loadmodule.sh

==========================================================

# Pools configuration

insmod cmemk.ko phys_start=0x85000000 phys_end=0x88000000 pools=6x4096,2x8192,1x11908,2x13184,1x2697152,6x4096,1x30720,3x81920,1x3185664,64x56,1x320,1x640,1x81920,1x6650880,2x608,1x296,1x28,2x24,23x1548288,1x154288 allowOverlap=1 phys_start_1=0x00001000 phys_end_1=0x00008000 pools_1=1x28672

==========================================================

现在的内存是128M的,其中uBoot配置Linux启动参数时,分配给Linux的内存为80M,

则剩下为48M,从0x85000000到0x88000000,刚好是48M

所以我认为:Linux操作系统占了80M,给应用程序的内存只有48M

再看目前的pool,加起来已经有48,766,952,即剩余1,564,696,不够3,686,400

所以不能在后面直接添加“1x3686400”

需要重新配置Linux的内存大小,重新设置uBoot中的启动参数:

setenv bootargs mem=64M console=ttyS0,115200n8 noinitrd rw ip=192.168.1.144:255.255.255.0:192.168.1.254 root=/dev/mtdblock3 rootfstype=yaffs video=davincifb:osd0=720x576x16,4050K dm365_imp.oper_mode=0 davinci_capture.device_type=4

saveenv

boot

(以上操作可参考:http://blog.csdn.net/talent258/archive/2010/06/28/5699971.aspx

然后再修改loadmodule.sh,如下:

==========================================================

# Pools configuration

insmod cmemk.ko phys_start=0x84000000 phys_end=0x88000000 pools=6x4096,2x8192,1x11908,2x13184,1x2697152,6x4096,1x30720,3x81920,1x3185664,64x56,1x320,1x640,1x81920,1x6650880,2x608,1x296,1x28,2x24,23x1548288,1x154288,1x3686400 allowOverlap=1 phys_start_1=0x00001000 phys_end_1=0x00008000 pools_1=1x28672

==========================================================

通过tftp把它下载下去,重新运行:

root@SEED_DVS365# ./loadmodule.sh

root@SEED_DVS365# ./jpgdec-r

还是出现错误,如下:

==========================================================

CMEMK Error: Failed to find a pool which fits 3686400

CMEM Error: getPool: Failed to get a pool fitting a size 3686400

Segmentation fault

==========================================================

和之前的错误相比,好像少了一点了。。。

试着分配2块3686400的pool,(把“1x3686400”改为“2x3686400”)

重新下载下去

然后运行

。。。

这个问题算是解决了。



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