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# insmod globalmem.ko insmod: error inserting 'globalmem.ko': -1 Device or resource busy
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# mknod /dev/globalmem c 254 0    /*ÕâÀïµÄ254¸úÒÑÐ޸ĵÄÖ÷É豸ºÅ228²»Ò»ÖÂ*/
# echo 'hello world' > /dev/globalmem
/bin/sh: can't create /dev/globalmem: No such device or address
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# rm /dev/globalmem
# mknod /dev/globalmem c 226 0
# echo 'hello world' > /dev/globalmem
written 12 bytes(s) from 0
     
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# echo 'hello world!' > /dev/globalmem
written 13 bytes(s) from 0
# cat /dev/
/dev/console    /dev/globalmem  /dev/null
# cat /dev/globalmem
read 4096 bytes(s) from 0
hello world!
cat: read error: No such device or address
#
ANSWER:ÆäʵûÎÊÌ⣬
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