[CRIU] DUMP test.sh in android

[beproject criu]

I have installed criu in android emulator and tried to dump simple process
referring to http://criu.org/Simple_loop but i was not successfull. I get
the following messages,

/sdcard # criu dump -t 98 -vvvv -o dump.log && echo OK
/sdcard # cat dump.log
(00.000780) ========================================
(00.003045) Dumping processes (pid: 98)
(00.003294) ========================================
(00.006383) Found anon-shmem device at 1
(00.006829) Reset 14399's dirty tracking
(00.007730)  ... done
(00.008526) Dirty tracking support is OFF
(00.010213) irmap: Searching irmap cache in work dir
(00.010530) irmap: Searching irmap cache in parent
(00.010744) irmap: No irmap cache
(00.016358) Writing image inventory (version 1)
(00.019428) Collected 1.pid namespace
(00.019806) Collected 2.net namespace
(00.020095) Collected 3.ipc namespace
(00.020458) Collected 4.uts namespace
(00.020759) Collected 5.mnt namespace
(00.020920) cg: Dumping cgroups for 14399
(00.022247) cg:  `- New css ID 1
(00.022471) cg:     `-
[cpuset,debug,cpu,cpuacct,memory,devices,freezer,blkio,perf_event] -> [/]
(00.022628) cg: Set 1 is criu one
(00.025407) Seized task 98, state 1
(00.030503) Seized task 14394, state 0
(00.051241) Collected 14394 in 1 state
(00.052304) Collected 98 in 1 state
(00.053954) Lock network
(00.056039)  type unsupported source rootfs 2 / @ ./ flags 0 options
size=373396k,nr_inodes=93349,
(00.056453)  type proc source proc 4 / @ ./proc flags 200000 options
(00.056765)  type sysfs source sysfs b / @ ./sys flags 200000 options
(00.057289)  type cgroup source none c / @ ./sys/fs/cgroup flags 200000
options cpuset,debug,cpu,cpuacct,memory,devices,freezer,blkio,perf_event,
(00.057582)  type debugfs source none 6 / @ ./sys/kernel/debug flags 200000
options
(00.057911)  type devpts source devpts a / @ ./dev/pts flags 200000 options
mode=600,ptmxmode=000,
(00.058346)  type unsupported source /dev/mmcblk0 b300000 / @ ./sdcard
flags 200000 options data=ordered,
(00.058690) Building mountpoints tree
(00.058848)  Building plain mount tree
(00.058977)  Working on 15->1
(00.059107)  Working on 14->1
(00.059236)  Working on 13->11
(00.059364)  Working on 12->11
(00.059491)  Working on 11->1
(00.059618)  Working on 10->1
(00.059745)  Working on 1->1
(00.061002) Error (mount.c:288): No root found for tree
(00.061231) Unlock network
(00.061362) Unfreezing tasks into 1
(00.061491)  Unseizing 98 into 1
(00.061839)  Unseizing 14394 into 1
(00.063168) Error (cr-dump.c:1914): Dumping FAILED.
/sdcard #


I had successfully dump & restore test.sh in ubuntu host. can someone help
me to dump a simple process in android?

Thanks.
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