Are sendmmsg() and recvmmsg() supported syscalls in RHEL?
Environment
- Red Hat Enterprise Linux
- MRG Realtime Kernel
Issue
- Does Red Hat Enterprise Linux implements sendmmsg() and recvmmsg() system call?
- More recently, upstream has added sendmmsg(). Is this included in RHEL?
Resolution
- RHEL 5.7 include the
recvmmsg()
system call. - RHEL 5 does not and will not provide the
sendmmsg()
system call. sendmmsg()
support is included in RHEL 6 fromkernel-2.6.32-220.el6
and MRG-Rkernel-rt-3.0.9-rt26.45.el6rt
.
Root Cause
- Upstream kernel patch: http://article.gmane.org/gmane.linux.network/194102
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