驱动测试错误集锦
来源:互联网 发布:arduino 单片机 编辑:程序博客网 时间:2024/05/20 07:36
1,加载驱动报错
“insmod:error inserting './dcache.ko': -1 Cannot allocate memory”
是因为你原来可能已经存在一个这样的驱动了,需要卸载掉。
2,卸载过程
* Remove a cache: Assuming your cache is named "fo o", run commands: umount /dev/mapper/foo dmsetup remove foo rmmod dcache lsmod insmod dcache
3,error: invalid storage class for function
就是因为少了一个“}”
4创建一个dcache硬件设备
fdisk -lfdisk /dev/vdbn,e,ent,ent,ent,w
blockdev --getsize /dev/vdc
echo 0 62914560 cache /dev/sdc /dev/sdb 0 8 65536 256 1 | dmsetup create dcache
报错
root@demo-2:~# echo 0 62914560 dcache /dev/vdc /dev/vdb 0 8 65536 256 1 | dmsetup create dcacheMessage from syslogd@demo-2 at Dec 3 07:47:05 ... kernel:[951389.165407] Kernel panic - not syncing: VERIFY: assertion (spin_is_locked(&dmc->lock)) failed at /root/cc-threadpool/test3/dcache.c (227)Message from syslogd@demo-2 at Dec 3 07:47:05 ... kernel:[951389.165408]
5,挂载
echo 0 62914560 dcache /dev/vdc /dev/vdb | dmsetup create dcachecd /dev/mapper/
6,卸载驱动
root@demo-2:~# sudo umount /dev/mapper/dcache sudo: unable to resolve host demo-2umount: /mnt/dmcache: device is busy. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1))root@demo-2:~# fuser -m /mnt/dmcache//mnt/dmcache: 10375croot@demo-2:~# ps aux|grep 10375croot 11539 0.0 0.0 7832 880 pts/1 R+ 07:08 0:00 grep 10375croot@demo-2:~# kill -9 10375
0 0
- 驱动测试错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- 错误集锦
- Luence 课程1----索引和搜索的建立
- mysql升级
- UI基础3 UIControl
- SQL Server系列(9) -- 数据库的安全与备份
- 网络IPC:套接字值寻址
- 驱动测试错误集锦
- android 网络异常提示
- -webkit-text-size-adjust: none;
- 【模板】【bzoj3224】Tyvj 1728 普通平衡树 Splay
- 275、H-Index II
- 模拟快递100请求 通过快递单号获取物流信息
- 多线程操作之线程概念
- mysql查询所有记录,并去掉重复的记录
- SDWebImage内部实现过程