It seems to hang on zfs_ioctl with the parameter ZFS_IOC_POOL_IMPORT:
if (zfs_ioctl(hdl, ZFS_IOC_POOL_IMPORT, &zc) != 0) {
So I guess I have no to debug the ZFS FUSE daemon to find out where is the
importing problem?
gdb trace output:
Breakpoint 5, zpool_import_props (hdl=0x685000, config=0x686e38, newname=0x0,
props=0x0, importfaulted=B_FALSE) at lib/libzfs/libzfs_pool.c:1455
1455 {
(gdb)
1456 zfs_cmd_t zc = { 0 };
(gdb)
1458 nvlist_t *nvi = NULL;
(gdb)
1465 verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
(gdb)
1468 (void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
(gdb)
1471 if (newname != NULL) {
(gdb)
1478 thename = origname;
(gdb)
1481 if (props) {
(gdb)
1496 (void) strlcpy(zc.zc_name, thename, sizeof (zc.zc_name));
(gdb)
1498 verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
(gdb)
1501 if (zcmd_write_conf_nvlist(hdl, &zc, config) != 0) {
(gdb)
1505 returned_size = zc.zc_nvlist_conf_size + 512;
(gdb)
1506 if (zcmd_alloc_dst_nvlist(hdl, &zc, returned_size) != 0) {
(gdb)
1511 zc.zc_cookie = (uint64_t)importfaulted;
(gdb)
1512 ret = 0;
(gdb)
1513 if (zfs_ioctl(hdl, ZFS_IOC_POOL_IMPORT, &zc) != 0) {
(gdb)
zfsfuse_ioctl_read_loop(): file descriptor closed
1516 (void) zcmd_read_dst_nvlist(hdl, &zc, &nvi);
(gdb)
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