##
ulimit 设置不正确。
Hi Clifford,
You were correct. Here is the ‘ulimit -a‘ output:
serverapp02:/# ulimit -a
time(seconds) unlimited
file(blocks) unlimited
data(kbytes) 131072
stack(kbytes) 32768
memory(kbytes) 32768
>>>coredump(blocks) 2097151
nofiles(descriptors) 2000
serverapp02:/#
So should I just triple the coredump(blocks) size to 6291453 so I can scp my
large file that is over 2GB?
Thanks,
BP
/etc/security/limits 将stack值设为了-1 为何用ulimit -a 看到的是 4194304?
出现这种问题的原因是在您的操作系统中设置了默认的stack的“硬限制”（hard limit）。要解决这个问题，您需要在/etc/security/limits中设置stack的新的硬限制（hard limit）为无限，然后再设置stack的限制。如：
default:
fsize = 2097151
core = 2097151 《-coredump
cpu = -1
data = 262144
rss = 65536
stack_hard = -1
stack = -1
nofiles = 2000
"File too large" error when using scp in AIX
原文：https://www.cnblogs.com/feiyun8616/p/12484570.html