uv__io_stop: Assertion `loop->watchers[w->fd] == w' failed.

[bwq90]

Today I got the below error and then XMRIG Proxy Aborted.

src/unix/core.c:932: uv__io_stop: Assertion loop->watchers[w->fd] == w' failed.`

The proxy was running fine for last few days. The hashrate was stable and everything looked normal. Until it suddently got aborted with the above error.

Now I have restarted proxy and it is again running fine.

Server Machine:

Distributor ID: Ubuntu
Description: Ubuntu 18.04.6 LTS
Release: 18.04
Codename: bionic

[bwq90]

Today I again got this error and xmrig proxy crashed. Now I am updating my OS to 20.04 LTS. because the other instance on 20.04 LTS is working fine.

[SChernykh]

This is a bug in libuv and it was fixed in libuv v1.41: nodejs/node#33966 (comment)

[bwq90]

Thanks @SChernykh . Yes I can confirm that after updating to Ubuntu 20.04 LTS. This bug no longer occurs.