[CRIU] zdtm/static/netns_sub(ns) zdtm/static/netns_sub_veth(uns) failures in Fedora rawhide CI

[Adrian Reber]

I have added some CI to the Fedora CRIU package and I see two errors
which I do not see locally:

https://jenkins-continuous-infra.apps.ci.centos.org/job/fedora-rawhide-build-pipeline/3917/artifact/package-tests/logs/FAIL_str_zdtm.log

==================== Run zdtm/static/netns_sub_veth in uns =====================
Start test
Test is SUID
./netns_sub_veth --pidfile=netns_sub_veth.pid --outfile=netns_sub_veth.out
Run criu dump
=[log]=> dump/zdtm/static/netns_sub_veth/52/1/dump.log
------------------------ grep Error ------------------------
(00.169059) 	LD: Got link 22, type 1
(00.169078) The peer link is in the 1 netns with the 22 index
(00.169090) Found ll addr (2e:../6) for zdtm1
(00.171745) 	Running ip route save
Error: ipv4: FIB table does not exist.
Dump terminated
(00.172824) Error (criu/util.c:608): exited, status=2
(00.172858) Error (criu/net.c:1735): IP tool failed on route save
(00.173771) net/ipv6/conf/zdtm1/stable_secret nr 200
(00.174260) 	Running ip addr save
(00.174665) Error (criu/namespaces.c:1090): Namespaces dumping finished with error 65280
(00.174936) Unlock network
(00.174949) Running network-unlock scripts
Error: ipv4: FIB table does not exist.
Dump terminated
(00.176427) Error (criu/util.c:608): exited, status=2
(00.176466) Error (criu/net.c:1735): IP tool failed on route save
(00.261638) 	Unseizing 52 into 1
(00.261694) 	Unseizing 55 into 1
(00.261727) 	Unseizing 56 into 1
(00.261774) 	Unseizing 57 into 1
(00.261921) Error (criu/cr-dump.c:1742): Dumping FAILED.
------------------------ ERROR OVER ------------------------
############## Test zdtm/static/netns_sub_veth FAIL at CRIU dump ###############
Send the 9 signal to  52
Wait for zdtm/static/netns_sub_veth(52) to die for 0.100000


======================= Run zdtm/static/netns_sub in ns ========================
Start test
Test is SUID
./netns_sub --pidfile=netns_sub.pid --outfile=netns_sub.out
Run criu dump
=[log]=> dump/zdtm/static/netns_sub/42/1/dump.log
------------------------ grep Error ------------------------
(00.120808) 	Running ip addr save
(00.122616) 	Running ip route save
(00.122789) 	Running ip route save
(00.125593) 	Running ip route save
Error: ipv4: FIB table does not exist.
Dump terminated
(00.127013) Error (criu/util.c:608): exited, status=2
(00.127050) Error (criu/net.c:1735): IP tool failed on route save
(00.182636) Error (criu/namespaces.c:1090): Namespaces dumping finished with error 65280
(00.182921) Unlock network
(00.182937) Running network-unlock scripts
Error: ipv4: FIB table does not exist.
Dump terminated
(00.184279) 	Running ip -6 route save
(00.184292) Error (criu/util.c:608): exited, status=2
(00.184339) Error (criu/net.c:1735): IP tool failed on route save
(00.193427) 	Unseizing 45 into 1
(00.193461) 	Unseizing 46 into 1
(00.193489) 	Unseizing 48 into 1
(00.193517) 	Unseizing 47 into 1
(00.193603) Error (criu/cr-dump.c:1742): Dumping FAILED.
------------------------ ERROR OVER ------------------------
################# Test zdtm/static/netns_sub FAIL at CRIU dump #################
Send the 9 signal to  42
Wait for zdtm/static/netns_sub(42) to die for 0.100000


Unfortunately this is all I currently have. Does anyone have any ideas what might
be the reason for these failures?

		Adrian