In release 20.1R1-S4, the EX2300 and EX3400 fail to generate core files, impacting the capability of debugging cores. As a result, this software release has been removed from our download page for these two platforms. The following console error log entries can be seen while the system tries to generate core files:
console: > Wrong UIO buffer size 1048576, expected 512b Wrong UIO buffer size 1048576, expected 512b Wrong UIO buffer size 1048576, expected 512b Wrong UIO buffer size 1048576, expected 512b Wrong UIO buffer size 1048576, expected 512b
This issue only affects release 20.1R1-S4 for the EX2300 and EX3400 platforms. Other JUNOS releases are not affected.