Postgresql backups failing with error ERROR: [041]: unable to open file - [11] Resource temporarily unavailable

With the latest kernel 4.18.0-553.5.1.el8_10.x86_64, it is noticed that the postgres backups are failing with ERROR: [041]: unable to open file - [11] Resource temporarily unavailable. Even though the reported file is available and can be accessed. The backup is going to an automout which is available and can be accessed otherwise without any issues.
Server is patched from 8.9 to 8.10 and after that the issue popped up. When the system is booted with the older kernel 4.18.0-513.24.1.el8_9.x86_64 the backups are happening without any issues.