After a recent server move, we are troubleshooting this weird issue of one of the servers losing network connectivity for no apparent reason and regaining the connectivity in a few seconds or minutes. There are no traces of it in /var/log/messages
dmesg
or mcelogs
. While trying to debug this, I issued
strace ping google.com
and it returns
= -1 EAGAIN (Resource temporarily unavailable)
Could someone throw light to what this message could mean? ping
resolves google.com, but it wouldn't show any response as if ping replies are set to reject in the firewall.
sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("74.125.131.113")}, msg_iov(1)=[{"\10\0005\321?i\0\3v\301lT\0\0\0\0\335\331\3\0\0\0\0\0\20\21\22\23\24\25\26\27"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64
recvmsg(3, 0x7fffd48b9cc0, 0) = -1 EAGAIN (Resource temporarily unavailable)
P.S: This is a VMware VM and runs RHEL 6.5