diff --git a/adb/jdwp_service.c b/adb/jdwp_service.c
index 0c26f7b..296f718 100644
--- a/adb/jdwp_service.c
+++ b/adb/jdwp_service.c
@@ -5,6 +5,7 @@
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 
 /* here's how these things work.
 
@@ -320,6 +321,7 @@
             struct iovec     iov;
             char             dummy = '!';
             char             buffer[sizeof(struct cmsghdr) + sizeof(int)];
+            int flags;
 
             iov.iov_base       = &dummy;
             iov.iov_len        = 1;
@@ -337,10 +339,27 @@
             cmsg->cmsg_type  = SCM_RIGHTS;
             ((int*)CMSG_DATA(cmsg))[0] = fd;
 
+            flags = fcntl(proc->socket,F_GETFL,0);
+
+            if (flags == -1) {
+                D("failed to get cntl flags for socket %d: %s\n",
+                  proc->pid, strerror(errno));
+                goto CloseProcess;
+
+            }
+
+            if (fcntl(proc->socket, F_SETFL, flags & ~O_NONBLOCK) == -1) {
+                D("failed to remove O_NONBLOCK flag for socket %d: %s\n",
+                  proc->pid, strerror(errno));
+                goto CloseProcess;
+            }
+
             for (;;) {
                 ret = sendmsg(proc->socket, &msg, 0);
-                if (ret >= 0)
+                if (ret >= 0) {
+                    adb_close(fd);
                     break;
+                }
                 if (errno == EINTR)
                     continue;
                 D("sending new file descriptor to JDWP %d failed: %s\n",
@@ -354,6 +373,12 @@
             for (n = 1; n < proc->out_count; n++)
                 proc->out_fds[n-1] = proc->out_fds[n];
 
+            if (fcntl(proc->socket, F_SETFL, flags) == -1) {
+                D("failed to set O_NONBLOCK flag for socket %d: %s\n",
+                  proc->pid, strerror(errno));
+                goto CloseProcess;
+            }
+
             if (--proc->out_count == 0)
                 fdevent_del( proc->fde, FDE_WRITE );
         }