Index: libcfa/configure.ac
===================================================================
--- libcfa/configure.ac	(revision 4e83bb73307a616bea9e819e1d7680a4fff893e1)
+++ libcfa/configure.ac	(revision d28524acb9d28e8dcfccd23c41645b70dbaf38c2)
@@ -181,4 +181,5 @@
 AH_TEMPLATE([CFA_HAVE_SPLICE_F_FD_IN_FIXED],[Defined if io_uring support is present when compiling libcfathread and supports the flag SPLICE_F_FD_IN_FIXED.])
 AH_TEMPLATE([CFA_HAVE_IORING_SETUP_ATTACH_WQ],[Defined if io_uring support is present when compiling libcfathread and supports the flag IORING_SETUP_ATTACH_WQ.])
+AH_TEMPLATE([CFA_HAVE_IORING_REGISTER_IOWQ_MAX_WORKERS],[Defined if io_uring support is present when compiling libcfathread and supports the flag IORING_REGISTER_IOWQ_MAX_WORKERS.])
 AH_TEMPLATE([CFA_HAVE_PREADV2],[Defined if preadv2 support is present when compiling libcfathread.])
 AH_TEMPLATE([CFA_HAVE_PWRITEV2],[Defined if pwritev2 support is present when compiling libcfathread.])
@@ -189,5 +190,5 @@
 
 define(ioring_ops, [IORING_OP_NOP,IORING_OP_READV,IORING_OP_WRITEV,IORING_OP_FSYNC,IORING_OP_READ_FIXED,IORING_OP_WRITE_FIXED,IORING_OP_POLL_ADD,IORING_OP_POLL_REMOVE,IORING_OP_SYNC_FILE_RANGE,IORING_OP_SENDMSG,IORING_OP_RECVMSG,IORING_OP_TIMEOUT,IORING_OP_TIMEOUT_REMOVE,IORING_OP_ACCEPT,IORING_OP_ASYNC_CANCEL,IORING_OP_LINK_TIMEOUT,IORING_OP_CONNECT,IORING_OP_FALLOCATE,IORING_OP_OPENAT,IORING_OP_CLOSE,IORING_OP_FILES_UPDATE,IORING_OP_STATX,IORING_OP_READ,IORING_OP_WRITE,IORING_OP_FADVISE,IORING_OP_MADVISE,IORING_OP_SEND,IORING_OP_RECV,IORING_OP_OPENAT2,IORING_OP_EPOLL_CTL,IORING_OP_SPLICE,IORING_OP_PROVIDE_BUFFERS,IORING_OP_REMOVE_BUFFER,IORING_OP_TEE])
-define(ioring_flags, [IOSQE_FIXED_FILE,IOSQE_IO_DRAIN,IOSQE_IO_LINK,IOSQE_IO_HARDLINK,IOSQE_ASYNC,IOSQE_BUFFER_SELECT,SPLICE_F_FD_IN_FIXED,IORING_SETUP_ATTACH_WQ])
+define(ioring_flags, [IOSQE_FIXED_FILE,IOSQE_IO_DRAIN,IOSQE_IO_LINK,IOSQE_IO_HARDLINK,IOSQE_ASYNC,IOSQE_BUFFER_SELECT,SPLICE_F_FD_IN_FIXED,IORING_SETUP_ATTACH_WQ,IORING_REGISTER_IOWQ_MAX_WORKERS])
 
 define(ioring_from_decls, [
Index: libcfa/src/concurrency/ready_subqueue.hfa
===================================================================
--- libcfa/src/concurrency/ready_subqueue.hfa	(revision 4e83bb73307a616bea9e819e1d7680a4fff893e1)
+++ libcfa/src/concurrency/ready_subqueue.hfa	(revision d28524acb9d28e8dcfccd23c41645b70dbaf38c2)
@@ -49,5 +49,5 @@
 	// Get the relevant nodes locally
 	this.prev->link.next = node;
-	this.prev->link.ts   = rdtscl();
+	__atomic_store_n(&this.prev->link.ts, rdtscl(), __ATOMIC_RELAXED);
 	this.prev = node;
 	#if !defined(__CFA_NO_STATISTICS__)