IOS XR が動作するルータにおいて、RSA Public key User Authentication を使用しており、SSH でログインした場合に sshd_child_handler process が crash し、SSH session が確立しません。
<XR ルータ上の出力例>
dumper[56]: %OS-DUMPER-7-DUMP_REQUEST : Dump request for process pkg/bin/sshd_child_handler
dumper[56]: %OS-DUMPER-6-ERR_SYSMGR_CORE_OPTIONS : Failed to get process core options from the process init/startup file. Error(1132268544): 'sysmgr' detected the 'warning' condition 'No more matching elements available'. Default options will be used.
dumper[56]: %OS-DUMPER-7-DUMP_ATTRIBUTE : Dump request with attribute 407 for process pkg/bin/sshd_child_handler
dumper[56]: %OS-DUMPER-4-SIGSEGV : Thread 1 received SIGSEGV - Segmentation Fault
dumper[56]: %OS-DUMPER-4-SIGSEGV_INFO : Accessed BadAddr 0x0 at PC 0x4b32445c. Signal code 1 - SEGV_MAPPER. Address not mapped.
dumper[56]: %OS-DUMPER-4-CRASH_INFO : Crashed pid = 2130137 (pkg/bin/sshd_child_handler)