[CRIU] [aarch64] CRIU hangs on dump

[Anton Kozlov]

On criu-dev (7916f5de), it still stops at that point, except warning is not
printed.
I waited ~5 minutes to be sure.

On Tue, Jan 17, 2017 at 5:07 PM, Dmitry Safonov <0x7f454c46 at gmail.com>
wrote:

> Hi Anton,
>
> 2017-01-17 16:53 GMT+03:00 Anton Kozlov <drakon.mega at gmail.com>:
> > Hi!
> >
> > I experience a problem with CRIU on aarch64, on making a dump of
> > Simple Loop (isolated or shell-job), it hangs and starts to print
> warnings
> > after some time.
> >
> > Last lines of dump -vvv is
> > (00.021967) 0x7f7c3a2000-0x7f7c3a6000 (16K) prot 0x1 flags 0x2 fdflags 0
> st
> > 0x41 off 0x12d000 reg fp  shmid: 0x2
> > (00.021983) 0x7f7c3a6000-0x7f7c3a8000 (8K) prot 0x3 flags 0x2 fdflags 0
> st
> > 0x41 off 0x131000 reg fp  shmid: 0x2
> > (00.021998) 0x7f7c3a8000-0x7f7c3ac000 (16K) prot 0x3 flags 0x22 fdflags
> 0 st
> > 0x201 off 0 reg ap  shmid: 0
> > (00.022014) 0x7f7c3c7000-0x7f7c3e3000 (112K) prot 0x5 flags 0x2 fdflags
> 0 st
> > 0x41 off 0 reg fp  shmid: 0x3
> > (00.022030) 0x7f7c3ed000-0x7f7c3f1000 (16K) prot 0x3 flags 0x22 fdflags
> 0 st
> > 0x201 off 0 reg ap  shmid: 0
> > (00.022046) 0x7f7c3f1000-0x7f7c3f2000 (4K) prot 0x5 flags 0x22 fdflags 0
> st
> > 0x209 off 0 reg vdso ap  shmid: 0
> > (00.022061) 0x7f7c3f2000-0x7f7c3f3000 (4K) prot 0x1 flags 0x22 fdflags 0
> st
> > 0x1201 off 0 reg vvar ap  shmid: 0
> > (00.022076) 0x7f7c3f3000-0x7f7c3f4000 (4K) prot 0x1 flags 0x2 fdflags 0
> st
> > 0x41 off 0x1c000 reg fp  shmid: 0x3
> > (00.022092) 0x7f7c3f4000-0x7f7c3f6000 (8K) prot 0x3 flags 0x2 fdflags 0
> st
> > 0x41 off 0x1d000 reg fp  shmid: 0x3
> > (00.022108) 0x7fdb414000-0x7fdb436000 (136K) prot 0x3 flags 0x122
> fdflags 0
> > st 0x201 off 0 reg ap  shmid: 0
> > (00.022123) ----------------------------------------
> > (00.022136)
> > (00.022148) Collecting fds (pid: 17785)
> > (00.022160) ----------------------------------------
> > (00.022229) Found 4 file descriptors
> > (00.022245) ----------------------------------------
> > (00.022632) MemFD parasite doesn't work, goto legacy mmap
> > (00.022798) Putting parasite blob into 0x7f7d5b0000->0x7f7c3bc000
> > (00.022888) Dumping GP/FPU registers for 17785
> > (00.022921) Putting tsock into pid 17785
> > (120.023060 Warn  (criu/parasite-syscall.c:523): blocked for more than
> 120
> > seconds
> > ...
> >
> > CRIU version 2.10 (similar behavior on 2.9)
> >
> > Kernel:
> > Linux odroid64-001 3.14.79+ #2 SMP PREEMPT Tue Jan 17 13:49:14 MSK 2017
> > aarch64 aarch64 aarch64 GNU/Linux
> >
> > Output of `criu check':
> > Warn  (criu/autofs.c:79): Failed to find pipe_ino option (old kernel?)
> > Info  prctl: PR_SET_MM_MAP_SIZE is not supported
> > Looks good.
> >
> > Could you help with this?
>
> Could you try criu-dev branch and see if it works for you?
>
> --
>              Dmitry
>



-- 
С уважением,
Антон Козлов
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