General

Cannot SSH into router. The router generates the following log messages: RP/0/RP0/CPU0 : SSHD_[65915]: %SECURITY-SSHD-3-ERR_GENERAL : Failed to allocate pty RP/0/RP0/CPU0 : devc-vty[181]: %MGBL-TTY-3-KERNEL : Unexpected internal error encountered 'Resource temporarily unavailable' : pkg/bin/devc-vty : (PID=536791) : -Traceback= 83d56c4 bc28137 bc28e2a 83d0882 83d181a 83d6c56 83d25a7 83d3577 822706e 8227016 82242c5 83e85fa 83e9a4a 42000c1 4200038 Cannot SSH into router. The router generates the following log messages: RP/0/RP0/CPU0 : SSHD_[65915]: %SECURITY-SSHD-3-ERR_GENERAL : Failed to allocate pty RP/0/RP0/CPU0 : devc-vty[181]: %MGBL-TTY-3-KERNEL : Unexpected internal error encountered 'Resource temporarily unavailable' : pkg/bin/devc-vty : (PID=536791) : -Traceback= 83d56c4 bc28137 bc28e2a 83d0882 83d181a 83d6c56 83d25a7 83d3577 822706e 8227016 82242c5 83e85fa 83e9a4a 42000c1 4200038

Symptom

Cannot SSH into router. The router generates the following log messages: RP/0/RP0/CPU0 : SSHD_[65915]: %SECURITY-SSHD-3-ERR_GENERAL : Failed to allocate pty RP/0/RP0/CPU0 : devc-vty[181]: %MGBL-TTY-3-KERNEL : Unexpected internal error encountered 'Resource temporarily unavailable' : pkg/bin/devc-vty : (PID=536791) : -Traceback= 83d56c4 bc28137 bc28e2a 83d0882 83d181a 83d6c56 83d25a7 83d3577 822706e 8227016 82242c5 83e85fa 83e9a4a 42000c1 4200038

Conditions

* SSH is configured * Trying to connect to the router via SSH

Workaround

1. Restart the devc-vty process on the active RSP. process restart devc-vty 2. Use Telnet

Further Problem Description