Hi,
To sync up, can you run loopback example?
I tried to reproduce your problem on 3.10.0-229.1.2.rt56.141.2.el7_1.x86_64 but
I got different result.
diff --git a/extras/libmemif/src/CMakeLists.txt
b/extras/libmemif/src/CMakeLists.txt
index ddb8a52..a11a65f 100644
--- a/extras/libmemif/src/CMakeLists.txt
+++ b/extras/libmemif/src/CMakeLists.txt
@@ -41,6 +41,12 @@ if(LIB_BSD)
target_link_libraries(memif ${LIB_BSD})
endif()
+find_library(LIB_LRT rt)
+if(LIB_BSD)
+ add_compile_definitions(HAS_LIB_LRT)
+ target_link_libraries(memif ${LIB_LRT})
+endif()
+
foreach(file ${MEMIF_HEADERS})
get_filename_component(dir ${file} DIRECTORY)
install(
diff --git a/extras/libmemif/src/main.c b/extras/libmemif/src/main.c
index 21b3994..132ce8d 100644
--- a/extras/libmemif/src/main.c
+++ b/extras/libmemif/src/main.c
@@ -184,6 +184,7 @@ memif_get_version_str ()
#define DBG_TX_BUF (0)
#define DBG_RX_BUF (1)
+#define MEMIF_DBG_SHM 1
#ifdef MEMIF_DBG_SHM
static void
@@ -1234,13 +1235,17 @@ memif_add_region (memif_connection_t *conn, uint8_t
has_buffers)
r->region_size = (has_buffers == 0) ? r->buffer_offset : r->buffer_offset +
conn->run_args.buffer_size * (1 << conn->run_args.log2_ring_size) *
(conn->run_args.num_s2m_rings + conn->run_args.num_m2s_rings);
-
+/*
if ((r->fd = memfd_create ("memif region 0", MFD_ALLOW_SEALING)) == -1)
return memif_syscall_error_handler (errno);
+*/
+ if ((r->fd = shm_open ("memif region 0", O_RDWR | O_CREAT, S_IRWXU)) == -1)
+ return memif_syscall_error_handler (errno);
+/*
if ((fcntl (r->fd, F_ADD_SEALS, F_SEAL_SHRINK)) == -1)
return memif_syscall_error_handler (errno);
-
+*/
if ((ftruncate (r->fd, r->region_size)) == -1)
return memif_syscall_error_handler (errno);
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