Troubleshooting Oracle ASM instance crash with ‘Linux-x86_64 Error: 24: Too many open files’

oracle 11g r2 RAC 其中一个节点实例1 crash并重启,日志查看有提示“ Linux-x86_64 Error: 24: Too many open files”
** DBGRL Error: Linux-x86_64 Error: 24: Too many open files
Additional information: 1
** DBGRL Error: Exception [type: SIGSEGV, Address not mapped to object] [ADDR:0x5C] [PC:0x8238B00, lxhh2ci()+4] [flags: 0x0, count: 1]
Cannot open /proc/self/exe for reading: errno=24