[CRIU] failures on aarch64 (master and criu-dev)

[Dmitry Safonov]

2017-07-21 16:33 GMT+03:00 Dmitry Safonov <0x7f454c46 at gmail.com>:
> 2017-07-21 15:37 GMT+03:00 Adrian Reber <adrian at lisas.de>:
>> I just tried criu on aarch64 and I see errors with master and criu-dev.
>> Kernel is 4.11:
>>
>> criu-dev:
>>
>> (00.013098) Dumping pages (type: 53 pid: 24)
>> (00.013102) ----------------------------------------
>> (00.013106)    Private vmas 352/625 pages
>> (00.013124) pagemap-cache: created for pid 24 (takes 4096 bytes)
>> (00.013131) page-pipe: Create page pipe for 625 segs
>> (00.013137) page-pipe: Will grow page pipe (iov off is 0)
>> (00.013333) pagemap-cache: filling VMA 400000-410000 (64K) [l:400000 h:600000]
>> (00.013347) pagemap-cache:                400000-410000           nr:1     cov:65536
>> (00.013353) pagemap-cache:                410000-420000           nr:2     cov:131072
>> (00.013359) pagemap-cache:                420000-430000           nr:3     cov:196608
>> (00.013363) pagemap-cache:      cache  mode [l:400000 h:600000]
>> (00.013394) Pagemap generated: 0 pages (0 lazy) 0 holes
>> (00.013400) Pagemap generated: 0 pages (0 lazy) 0 holes
>> (00.013405) Pagemap generated: 0 pages (0 lazy) 0 holes
>> (00.013409) pagemap-cache: filling VMA ffffaf170000-ffffaf2d0000 (1408K) [l:ffffaf000000 h:ffffaf200000]
>> (00.013425) Error (criu/pagemap-cache.c:159): pagemap-cache: Can't read 24's pagemap file: No such file or directory
>> (00.013439) Error (criu/pagemap-cache.c:175): pagemap-cache: Failed to fill cache for 24 (ffffaf170000-ffffaf2d0000)
>> (00.013483) page-pipe: Killing page pipe
>> (00.013502) ----------------------------------------
>>
>> https://lisas.de/~adrian/dump.log.aarch64.criu-dev
>>
>> master:
>>
>> (00.016723) Wait for ack 74 on daemon socket
>> pie: 1: __sent ack msg: 74 74 0
>> (00.016733) Fetched ack: 74 74 0
>> pie: 1: Daemon waits for command
>> (00.016753) Error (criu/vdso.c:146): vdso: Can't read pme for pid 30: Success
>> (00.016764) Error (criu/cr-dump.c:1291): Can't fixup vdso VMAs (pid: 30)
>> (00.017428) Running network-unlock scripts
>> (00.021657) Unfreezing tasks into 1
>> (00.021683)     Unseizing 30 into 1
>> (00.021697)     Unseizing 33 into 1
>> (00.021716) Error (criu/cr-dump.c:1657): Dumping FAILED.
>>
>> https://lisas.de/~adrian/dump.log.aarch64.master
>
> I'll look at vdso issue - as in the near days I'll need to play with
> vdso C/R on aarch64 anyway.

Hmm, aarch64 vdso issue may be silently fixed by
[PATCH 00/11] vDSO rework, part 3/3
Will check.

-- 
             Dmitry