[CRIU] Fwd: Checkpoint failure on arm64 platform
Vijay Kilari
vijay.kilari at gmail.com
Mon Dec 21 00:00:31 PST 2015
Reposting.
---------- Forwarded message ----------
From: Vijay Kilari <vijay.kilari at gmail.com>
Date: Mon, Dec 21, 2015 at 11:45 AM
Subject: Checkpoint failure on arm64 platform
To: criu at openvz.org
Hi,
I am trying to do docker checkpoint/restore on arm64 platform.
The checkpoint fails while with the sys_readlink of /proc/self.
Below is the list of steps that I am trying.
crui check returns as below.
ubuntu at ubuntu:~/criu/criu-1.7$ sudo criu check
Error (cr-check.c:602): Kernel doesn't support PTRACE_O_SUSPEND_SECCOMP
Warn (cr-check.c:619): Dirty tracking is OFF. Memory snapshot will not work.
Error (cr-check.c:749): CLONE_PARENT | CLONE_NEWPID don't work together
ubuntu at ubuntu:~/criu/criu-1.7$
Am I missing some kernel configuration or patches required for criu required
for kernel 4.2?.
ubuntu at ubuntu:~$ sudo docker run -d justinzh/arm64-vivid:latest tail
-f /dev/null
and with checkpoint, I get below error. Cannot readlink /proc/self(-9)
ubuntu at ubuntu:~$ sudo docker checkpoint 039619dc7bd6
ie: Error (pie/parasite.c:288): Can't readlink /proc/self (-9)
pie: __sent ack msg: 15 15 -9
pie: Error (pie/parasite.c:631): Close the control socket for writing
>
(00.009497) Error (parasite-syscall.c:815): Can't retrieve FD from socket
pie: Daemon waits for command
(00.009535) Wait for ack 15 on daemon socket
(00.009553) Error (parasite-syscall.c:298): Message reply from daemon
is trimmed (12/0)
(00.009564) Error (cr-dump.c:1201): Can't get proc fd (pid: 4255)
Complete log:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(00.009351) Wait for parasite being daemonized...
pie: Running daemon thread leader
(00.009373) Wait for ack 2 on daemon socket
pie: __sent ack msg: 2 2 0
(00.009406) Fetched ack: 2 2 0
pie: Daemon waits for command
(00.009420) Parasite 4255 has been switched to daemon mode
(00.009449) Sent msg to daemon 15 0 0
pie: __fetched msg: 15 0 0
pie: Error (pie/parasite.c:288): Can't readlink /proc/self (-9)
pie: __sent ack msg: 15 15 -9
pie: Error (pie/parasite.c:631): Close the control socket for writing
>
(00.009497) Error (parasite-syscall.c:815): Can't retrieve FD from socket
pie: Daemon waits for command
(00.009535) Wait for ack 15 on daemon socket
(00.009553) Error (parasite-syscall.c:298): Message reply from daemon
is trimmed (12/0)
(00.009564) Error (cr-dump.c:1201): Can't get proc fd (pid: 4255)
(00.009583) Waiting for 4255 to trap
(00.009597) Daemon 4255 exited trapping
(00.009612) Sent msg to daemon 6 0 0
(00.009652) 4255 was trapped
(00.009672) 4255 is going to execute the syscall cf
(00.009701) 4255 was trapped
(00.009715) `- Expecting exit
(00.009740) 4255 was trapped
(00.009754) 4255 is going to execute the syscall 40
pie: __fetched msg: 6 0 0
(00.009792) 4255 was trapped
(00.009804) `- Expecting exit
(00.009829) 4255 was trapped
(00.009842) 4255 is going to execute the syscall b2
(00.009865) 4255 was trapped
(00.009876) `- Expecting exit
(00.009900) 4255 was trapped
(00.009913) 4255 is going to execute the syscall 40
pie: 1: new_sp=0x3ff99613000 ip 0x3ff996dca74
(00.009947) 4255 was trapped
(00.009958) `- Expecting exit
(00.009982) 4255 was trapped
(00.009994) 4255 is going to execute the syscall 39
(00.010030) 4255 was trapped
(00.010041) `- Expecting exit
(00.010065) 4255 was trapped
(00.010077) 4255 is going to execute the syscall 39
(00.010101) 4255 was trapped
(00.010112) `- Expecting exit
(00.010135) 4255 was trapped
(00.010147) 4255 is going to execute the syscall 8b
(00.010173) 4255 was stopped
(00.010204) 4255 was trapped
(00.010219) 4255 is going to execute the syscall 40
(00.010243) 4255 was trapped
(00.010254) `- Expecting exit
(00.010277) 4255 was trapped
(00.010290) 4255 is going to execute the syscall d7
(00.010335) 4255 was stopped
(00.010518) Unlock network
(00.010537) Running network-unlock scripts
(00.010552) RPC
(00.010639) Unfreezing tasks into 1
(00.010658) Unseizing 4255 into 1
(00.010755) Error (cr-dump.c:1617): Dumping FAILED.
ubuntu at ubuntu:~/criu/criu-1.7$ uname -a
Linux ubuntu 4.2.0-02479-g4fdbbaf-dirty #1 SMP Thu Dec 17 17:01:06 IST
2015 aarch64 aarch64 aarch64 GNU/Linux
ubuntu at ubuntu:~/criu/criu-1.7
ubuntu at ubuntu:~/criu/criu-1.7$ lsmod
Module Size Used by
veth 262144 0
netlink_diag 262144 0
af_packet_diag 262144 0
udp_diag 262144 0
tcp_diag 262144 0
inet_diag 262144 2 tcp_diag,udp_diag
unix_diag 262144 0
xt_conntrack 262144 1
ipt_MASQUERADE 262144 1
nf_nat_masquerade_ipv4 262144 1 ipt_MASQUERADE
iptable_nat 262144 1
nf_conntrack_ipv4 262144 2
nf_defrag_ipv4 262144 1 nf_conntrack_ipv4
nf_nat_ipv4 262144 1 iptable_nat
xt_addrtype 262144 2
iptable_filter 262144 1
ip_tables 262144 2 iptable_filter,iptable_nat
x_tables 262144 5
ip_tables,ipt_MASQUERADE,xt_conntrack,iptable_filter,xt_addrtype
nf_nat 262144 2 nf_nat_ipv4,nf_nat_masquerade_ipv4
nf_conntrack 262144 5
nf_nat,nf_nat_ipv4,xt_conntrack,nf_nat_masquerade_ipv4,nf_conntrack_ipv4
br_netfilter 262144 0
bridge 327680 1 br_netfilter
stp 262144 1 bridge
llc 262144 2 stp,bridge
dm_thin_pool 262144 2
dm_bio_prison 262144 1 dm_thin_pool
dm_persistent_data 262144 1 dm_thin_pool
dm_bufio 262144 1 dm_persistent_data
aes_ce_blk 262144 0
ablk_helper 262144 1 aes_ce_blk
cryptd 262144 1 ablk_helper
aes_ce_cipher 262144 1 aes_ce_blk
ghash_ce 262144 0
sha2_ce 262144 0
sha1_ce 262144 0
rtc_efi 262144 0
shpchp 262144 0
uio_pdrv_genirq 262144 0
uio 262144 1 uio_pdrv_genirq
ipv6 458752 526 bridge,udp_diag
ubuntu at ubuntu:~/criu/criu-1.7$ zcat /proc/config.gz | grep PID_NS
CONFIG_PID_NS=y
ubuntu at ubuntu:~/criu/criu-1.7$
Regards
Vijay
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