New Comment on Issue #github

[pcp:master] New Comment on Issue #118 reported pmDestroyContext: pthread_mutex_destroy(c_lock) failed: Device or resource busy, failed second try as well ( https://github.com/performancecopilot/pcp/issues/118 )
By fche ( https://github.com/fche ) :

Possibly relevant: intermittent crashes of pmmgr are observed with error messages like:

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> Unexpected error 9 on netlink descriptor 7
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This message comes from glibc, and is basically an assertion failure. glibc 2.23's release notes describe the situation thusly:

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> getaddrinfo now detects certain invalid responses on an internal netlink
> socket. If such responses are received, an affected process will terminate
> with an error message of "Unexpected error on netlink descriptor " or
> "Unexpected netlink response of size on descriptor ". The most likely cause
> for these errors is a multi-threaded application which erroneously closes
> and reuses the netlink file descriptor while it is used by getaddrinfo.
> 
> 

again implicating multithreading & socket handling in libpcp.