[CRIU] Difference between two snapshots generated by CRIU

Thouraya TH thouraya87 at gmail.com
Tue Feb 10 04:45:16 PST 2015


I have done copy paste in two different files and I proceeded as follows:

diff LoopProcess.txt LoopProcess1.txt > diffLoop.txt

19c19
< Task 9773:
---
> Task 10821:
27,28c27,28
<         r13: 0x007fffc422ea40
<         r12: 0x007fffc422e8d0
---
>         r13: 0x007fff795b16c0
>         r12: 0x007fff795b1550
32c32
<         r10: 0x007fffc422e690
---
>         r10: 0x007fff795b1310
39c39
<         di: 0x007fffc422e8d0
---
>         di: 0x007fff795b1550
41c41
<         ip: 0x007fe23fb1799e
---
>         ip: 0x007f2e2456799e
44c44
<         sp: 0x007fffc422e8c8
---
>         sp: 0x007fff795b1548
46c46
<         fs_base: 0x007fe240033740
---
>         fs_base: 0x007f2e24a83740
64c64
<         xmm_space:
0:0:0:0:0:0:0:0:0:0:0:0:0x4c4c415f:0x4e414c00:0x69660047:0x6f6c646e:0xc422e860:0x7fff:0x3fa84a9c:0x7fe2:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0xff00:0:0xff0000:0xff0000:0:0:0:0:0:0:0:0:0:0:0:0
---
>         xmm_space:
0:0:0:0:0:0:0:0:0:0:0:0:0x4c4c415f:0x4e414c00:0x69660047:0x6f6c646e:0x795b14e0:0x7fff:0x244d4a9c:0x7f2e:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0xff00:0:0xff0000:0xff0000:0:0:0:0:0:0:0:0:0:0:0:0
194c194
< Resources for 9773:
---
> Resources for 10821:
196c196
< * mm-9773.img:
---
> * mm-10821.img:
201,207c201,207
< mm_start_stack: 0x007fffc422ea40
< mm_start_brk: 0x00000001e72000
< mm_brk: 0x00000001e93000
< mm_arg_start: 0x007fffc422f88d
< mm_arg_end: 0x007fffc422f895
< mm_env_start: 0x007fffc422f895
< mm_env_end: 0x007fffc422ffed
---
> mm_start_stack: 0x007fff795b16c0
> mm_start_brk: 0x000000013b6000
> mm_brk: 0x000000013d7000
> mm_arg_start: 0x007fff795b288d
> mm_arg_end: 0x007fff795b2895
> mm_env_start: 0x007fff795b2895
> mm_env_end: 0x007fff795b2fed
209c209
< mm_saved_auxv:
0x00000000000021:0x007fffc437e000:0x00000000000010:0x000000bfebfbff:0x00000000000006:0x00000000001000:0x00000000000011:0x00000000000064:0x00000000000003:0x00000000400040:0x00000000000004:0x00000000000038:0x00000000000005:0x00000000000009:0x00000000000007:0x007fe23fe1c000:0x00000000000008:0:0x00000000000009:0x000000004017ac:0x0000000000000b:0:0x0000000000000c:0:0x0000000000000d:0:0x0000000000000e:0:0x00000000000017:0:0x00000000000019:0x007fffc422ec59:0x0000000000001f:0x007fffc422ffed:0x0000000000000f:0x007fffc422ec69:0:0
---
> mm_saved_auxv:
0x00000000000021:0x007fff795fe000:0x00000000000010:0x000000bfebfbff:0x00000000000006:0x00000000001000:0x00000000000011:0x00000000000064:0x00000000000003:0x00000000400040:0x00000000000004:0x00000000000038:0x00000000000005:0x00000000000009:0x00000000000007:0x007f2e2486c000:0x00000000000008:0:0x00000000000009:0x000000004017ac:0x0000000000000b:0:0x0000000000000c:0:0x0000000000000d:0:0x0000000000000e:0:0x00000000000017:0:0x00000000000019:0x007fff795b18d9:0x0000000000001f:0x007fff795b2fed:0x0000000000000f:0x007fff795b18e9:0:0
244,245c244,245
<     start: 0x00000001e72000
<     end: 0x00000001e93000
---
>     start: 0x000000013b6000
>     end: 0x000000013d7000
255,256c255,256
<     start: 0x007fe23f78d000
<     end: 0x007fe23fa56000
---
>     start: 0x007f2e241dd000
>     end: 0x007f2e244a6000
266,267c266,267
<     start: 0x007fe23fa56000
<     end: 0x007fe23fc11000
---
>     start: 0x007f2e244a6000
>     end: 0x007f2e24661000
277,278c277,278
<     start: 0x007fe23fc11000
<     end: 0x007fe23fe11000
---
>     start: 0x007f2e24661000
>     end: 0x007f2e24861000
288,289c288,289
<     start: 0x007fe23fe11000
<     end: 0x007fe23fe15000
---
>     start: 0x007f2e24861000
>     end: 0x007f2e24865000
299,300c299,300
<     start: 0x007fe23fe15000
<     end: 0x007fe23fe17000
---
>     start: 0x007f2e24865000
>     end: 0x007f2e24867000
310,311c310,311
<     start: 0x007fe23fe17000
<     end: 0x007fe23fe1c000
---
>     start: 0x007f2e24867000
>     end: 0x007f2e2486c000
321,322c321,322
<     start: 0x007fe23fe1c000
<     end: 0x007fe23fe3f000
---
>     start: 0x007f2e2486c000
>     end: 0x007f2e2488f000
332,333c332,333
<     start: 0x007fe240033000
<     end: 0x007fe240036000
---
>     start: 0x007f2e24a83000
>     end: 0x007f2e24a86000
343,344c343,344
<     start: 0x007fe24003c000
<     end: 0x007fe24003e000
---
>     start: 0x007f2e24a8c000
>     end: 0x007f2e24a8e000
354,355c354,355
<     start: 0x007fe24003e000
<     end: 0x007fe24003f000
---
>     start: 0x007f2e24a8e000
>     end: 0x007f2e24a8f000
365,366c365,366
<     start: 0x007fe24003f000
<     end: 0x007fe240040000
---
>     start: 0x007f2e24a8f000
>     end: 0x007f2e24a90000
376,377c376,377
<     start: 0x007fe240040000
<     end: 0x007fe240041000
---
>     start: 0x007f2e24a90000
>     end: 0x007f2e24a91000
387,388c387,388
<     start: 0x007fffc420e000
<     end: 0x007fffc4230000
---
>     start: 0x007fff79591000
>     end: 0x007fff795b3000
398,399c398,399
<     start: 0x007fffc437e000
<     end: 0x007fffc4380000
---
>     start: 0x007fff795fe000
>     end: 0x007fff79600000
421c421
< * sigacts-9773.img:
---
> * sigacts-10821.img:
484c484
< * creds-9773.img:
---
> * creds-10821.img:
499c499
< * fs-9773.img:
---
> * fs-10821.img:
507c507
< ---[ end of task 9773 ]---
---
> ---[ end of task 10821 ]---

Could you please explain me some of these lines ? What are the main changes
from one snapshot to another ?

Thanks a lot for help.
Bests.

2015-02-10 12:30 GMT+01:00 Thouraya TH <thouraya87 at gmail.com>:

> Hello all,  i have done two times the dumping process of this process
> http://criu.org/Simple_loop
>
> root at g-52:/home# *cd LoopProcess*
> root at g-52:/home/LoopProcess# ls
> cgroup.img      dump.log       fdinfo-2.img   fs-9162.img   inotify.img
> ns-files.img      pages-2.img     remap-fpath.img   stats-dump    unixsk.img
> core-9162.img   eventfd.img    fdinfo-3.img   fs-9773.img   inventory.img
> packetsk.img      pipes-data.img  sigacts-9162.img  timerfd.img
> core-9773.img   eventpoll.img  fifo-data.img  ids-9162.img  mm-9162.img
> pagemap-9162.img  pipes.img       sigacts-9773.img  tty.img
> creds-9162.img  ext-files.img  fifo.img       ids-9773.img  mm-9773.img
> pagemap-9773.img  pstree.img      signalfd.img      tty-info.img
> creds-9773.img  fanotify.img   filelocks.img  inetsk.img    netlinksk.img
> pages-1.img       reg-files.img   sk-queues.img     tunfile.img
>
> root at g-52:/home/LoopProcess# cd ..
> root at g-52:/home# *cd LoopProcess1/*
> root at g-52:/home/LoopProcess1# ls
> cgroup.img       dump.log       fdinfo-2.img   fs-10821.img
> inotify.img    ns-files.img       pages-2.img     remap-fpath.img
> stats-dump    unixsk.img
> core-10821.img   eventfd.img    fdinfo-3.img   fs-9162.img
> inventory.img  packetsk.img       pipes-data.img  sigacts-10821.img
> timerfd.img
> core-9162.img    eventpoll.img  fifo-data.img  ids-10821.img
> mm-10821.img   pagemap-10821.img  pipes.img       sigacts-9162.img   tty.img
> creds-10821.img  ext-files.img  fifo.img       ids-9162.img
> mm-9162.img    pagemap-9162.img   pstree.img      signalfd.img
> tty-info.img
> creds-9162.img   fanotify.img   filelocks.img  inetsk.img
> netlinksk.img  pages-1.img        reg-files.img   sk-queues.img
> tunfile.img
>
> Then:
>
> criu show -D LoopProcess
> i see many lines.. i'd like to redirect the result of this command to a
> file like that:
>
> criu show -D LoopProcess > first.txt
>
> but i have these error :
> Error (image.c:231): Unable to open netdev-2.img: No such file or directory
> Error (image.c:231): Unable to open ifaddr-2.img: No such file or directory
> Error (image.c:231): Unable to open route-2.img: No such file or directory
> Error (image.c:231): Unable to open iptables-2.img: No such file or
> directory
> Error (image.c:231): Unable to open ipcns-var-3.img: No such file or
> directory
> Error (image.c:231): Unable to open ipcns-shm-3.img: No such file or
> directory
> Error (image.c:231): Unable to open ipcns-msg-3.img: No such file or
> directory
> Error (image.c:231): Unable to open ipcns-sem-3.img: No such file or
> directory
> Error (image.c:231): Unable to open utsns-4.img: No such file or directory
> Error (image.c:231): Unable to open mountpoints-5.img: No such file or
> directory
>
>
> ?
>
> Thanks a lot.
> Best Regards.
>
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