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Posted to dev@brpc.apache.org by GitBox <gi...@apache.org> on 2019/10/24 07:35:45 UTC
[GitHub] [incubator-brpc] wu-hanqing opened a new issue #944: /proc/self/io:
Fail to fscanf: Permission denied
wu-hanqing opened a new issue #944: /proc/self/io: Fail to fscanf: Permission denied
URL: https://github.com/apache/incubator-brpc/issues/944
**Describe the bug (描述bug)**
日志中经常出现 bvar/default_variables.cpp:442] Fail to fscanf: Permission denied，1s一次
**To Reproduce (复现方法)**
我们为qemu提供了一个block driver，在使用的时候会出现上面的日志。
**Expected behavior (期望行为)**
看了一下对应的代码，奇怪的是可以打开/proc/self/io，但是在后续fscanf的时候提示没有权限。
#788 是一个比较类似的，他们的情况是打开的时候就提示无权限。
现在期望能定位一下问题，或者，能不能把这个功能`read_proc_io`暂时屏蔽了。
**Versions (各种版本)**
OS: debian7(3.10)
Compiler: gcc-4,9
brpc: 0.9.6
protobuf: 2.4.1
**Additional context/screenshots (更多上下文/截图)**
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