I have linux redhat machine - 6.8
and from the /var/log/message file I see the following lines:
from my point is seems that linux is hung because the bad connection to the server - 100.1.93.7 ,
is it correct ?
Oct 30 04:39:40 guard_tap[18038]: Delayed server connection to 100.1.93.7 error: Connection timed out
Oct 30 04:40:31 kernel: INFO: task oracle:16131 blocked for more than 120 seconds.
Oct 30 04:40:31 kernel: Tainted: G W -- ------------ 2.6.32-642.4.2.el6.x86_64 #1
Oct 30 04:40:31 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Oct 30 04:40:31 kernel: oracle D 0000000000000001 0 16131 1 0x00000000
Oct 30 04:40:31 kernel: ffff8801012a7a98 0000000000000082 ffff8801012a79e8 ffffffffa03093ee
Oct 30 04:40:31 kernel: ffff8801012a7a18 ffffffffa0309c90 ffff880700b057c0 ffff8801012a7a48
Oct 30 04:40:31 kernel: ffff880700b05870 ffff88082ba2e448 ffff88010c6e3ad8 ffff8801012a7fd8
Oct 30 04:40:31 kernel: Call Trace:
That could be just coincidence
Your real issue is this
So you should check your Oracle alert log file.