CreateProcess call failed: A blocking operation was interrupted by a call to WSACancelBlockingCall

Hi,

I'm not sure how to reach the cause and reproduce it.
Any suggestion will be appreciated.
PostgreSQL 11.7
postgresql-42.2.12.jar
Windows Server 2016

Thanks,
Kiyoshi

2020-11-13 21:11:51.535 JST [3652] LOG: CreateProcess call failed: A
blocking operation was interrupted by a call to WSACancelBlockingCall.

(error code 1455)
2020-11-13 21:11:51.536 JST [3652] LOG: could not fork autovacuum worker
process: No error
2020-11-13 21:11:52.548 JST [3652] LOG: CreateProcess call failed: A
blocking operation was interrupted by a call to WSACancelBlockingCall.

(error code 1455)
2020-11-13 21:11:52.548 JST [3652] LOG: could not fork autovacuum worker
process: No error
2020-11-13 21:11:53.562 JST [3652] LOG: CreateProcess call failed: A
blocking operation was interrupted by a call to WSACancelBlockingCall.

(error code 1455)
2020-11-13 21:11:53.562 JST [3652] LOG: could not fork autovacuum worker
process: No error
2020-11-13 21:11:54.578 JST [3652] LOG: CreateProcess call failed: A
blocking operation was interrupted by a call to WSACancelBlockingCall.

(error code 1455)
2020-11-13 21:11:54.578 JST [3652] LOG: could not fork autovacuum worker
process: No error
2020-11-13 21:11:55.578 JST [3652] LOG: CreateProcess call failed: A
blocking operation was interrupted by a call to WSACancelBlockingCall.

(error code 1455)
2020-11-13 21:11:55.578 JST [3652] LOG: could not fork autovacuum worker
process: No error
2020-11-13 21:11:55.957 JST [3652] LOG: CreateProcess call failed: A
blocking operation was interrupted by a call to WSACancelBlockingCall.

(error code 1455)
2020-11-13 21:11:55.957 JST [3652] LOG: could not fork new process for
connection: No error
2020-11-13 21:11:55.958 JST [3652] LOG: CreateProcess call failed: No
error (error code 1455)
2020-11-13 21:11:55.958 JST [3652] LOG: could not fork new process for
connection: No error
2020-11-13 21:11:55.967 JST [3652] LOG: CreateProcess call failed: No
error (error code 1455)
2020-11-13 21:11:55.967 JST [3652] LOG: could not fork new process for
connection: No error
2020-11-13 21:11:55.968 JST [3652] LOG: CreateProcess call failed: No
error (error code 1455)
2020-11-13 21:11:55.968 JST [3652] LOG: could not fork new process for
connection: No error
2020-11-13 21:11:55.974 JST [3652] LOG: CreateProcess call failed: No
error (error code 1455)
2020-11-13 21:11:55.974 JST [3652] LOG: could not fork new process for
connection: No error
2020-11-13 21:11:55.975 JST [3652] LOG: CreateProcess call failed: No
error (error code 1455)
2020-11-13 21:11:55.975 JST [3652] LOG: could not fork new process for
connection: No error
2020-11-13 21:11:55.979 JST [3652] LOG: CreateProcess call failed: No
error (error code 1455)
2020-11-13 21:11:55.979 JST [3652] LOG: could not fork new process for
connection: No error
2020-11-13 21:11:55.980 JST [3652] LOG: CreateProcess call failed: No
error (error code 1455)
2020-11-13 21:11:55.980 JST [3652] LOG: could not fork new process for
connection: No error
2020-11-13 21:11:56.594 JST [3652] LOG: CreateProcess call failed: A
blocking operation was interrupted by a call to WSACancelBlockingCall.

(error code 1455)
2020-11-13 21:11:56.594 JST [3652] LOG: could not fork autovacuum worker
process: No error
2020-11-13 21:11:57.115 JST [3652] LOG: CreateProcess call failed: A
blocking operation was interrupted by a call to WSACancelBlockingCall.

(error code 1450)
2020-11-13 21:11:57.115 JST [3652] LOG: could not fork new process for
connection: No error
2020-11-13 21:11:57.116 JST [3652] LOG: could not map backend parameter
memory: error code 6
2020-11-13 21:11:57.116 JST [3652] LOG: could not fork new process for
connection: No error
2020-11-13 22:08:16.028 JST [17660] LOG: could not receive data from
client: An existing connection was forcibly closed by the remote host.

2020-11-13 22:08:16.028 JST [12560] LOG: could not receive data from
client: An existing connection was forcibly closed by the remote host.