lxc-test-usernsexec in ubuntu_lxc failed with myuidgid

[Po-Hsu Lin]

Issue found on 5.8.0-1008.8 GCP

Test failed with:
 FAIL: lxc-tests: lxc-test-usernsexec (1s)
 ---
 as test-userns executing /tmp/autopkgtest.8vKiat/build.1Mf/src/src/tests/lxc-test-usernsexec
 uid=1008 gid=1009 name=test-userns subuid=624288 subgid=624288 ver=1:4.0.4-0ubuntu3
 lxc-utils=1:4.0.4-0ubuntu3 kver=5.8.0-1008-gcp
 USERNSEXEC=lxc-usernsexec
 nouidgid: PASS
 myuidgid: FAIL - runtest failed 1
 $ lxc-usernsexec -mu:0:1008:1 -mg:0:1009:1 -- /tmp/autopkgtest.8vKiat/build.1Mf/src/src/tests/lxc-test-usernsexec inside f0
 lxc 20201016155824.477 ERROR utils - utils.c:lxc_setgroups:1363 - Operation not permitted - Failed to setgroups()
 kid 80842 is gone 1
 subuidgid: PASS
 bothsets: PASS
 mismatch: PASS
 ERRORS: myuidgid
 ---
 PASS: lxc-tests: lxc-test-utils (0s)

 SUMMARY: pass=43, fail=1, ignored=1

[Sean Feole (sfeole)]

linux-aws focal
11/18 01:31:05 DEBUG| utils:0153| [stdout] FAIL: lxc-tests: lxc-test-usernsexec (2s)
11/18 01:31:05 DEBUG| utils:0153| [stdout] ---
11/18 01:31:05 DEBUG| utils:0153| [stdout] as test-userns executing /tmp/autopkgtest.1Mn2pV/build.J3t/src/src/tests/lxc-test-usernsexec
11/18 01:31:05 DEBUG| utils:0153| [stdout] uid=1001 gid=1001 name=test-userns subuid=165536 subgid=165536 ver=1:4.0.4-0ubuntu3
11/18 01:31:05 DEBUG| utils:0153| [stdout] lxc-utils=1:4.0.4-0ubuntu3 kver=5.8.0-1014-aws
11/18 01:31:05 DEBUG| utils:0153| [stdout] USERNSEXEC=lxc-usernsexec
11/18 01:31:05 DEBUG| utils:0153| [stdout] nouidgid: PASS
11/18 01:31:05 DEBUG| utils:0153| [stdout] myuidgid: FAIL - runtest failed 1
11/18 01:31:05 DEBUG| utils:0153| [stdout] $ lxc-usernsexec -mu:0:1001:1 -mg:0:1001:1 -- /tmp/autopkgtest.1Mn2pV/build.J3t/src/src/tests/lxc-test-usernsexec inside f0
11/18 01:31:05 DEBUG| utils:0153| [stdout] lxc 20201118013103.948 ERROR utils - utils.c:lxc_setgroups:1363 - Operation not permitted - Failed to setgroups()
11/18 01:31:05 DEBUG| utils:0153| [stdout] kid 79906 is gone 1
11/18 01:31:05 DEBUG| utils:0153| [stdout] subuidgid: PASS
11/18 01:31:05 DEBUG| utils:0153| [stdout] bothsets: PASS
11/18 01:31:05 DEBUG| utils:0153| [stdout] mismatch: PASS
11/18 01:31:05 DEBUG| utils:0153| [stdout] ERRORS: myuidgid
11/18 01:31:05 DEBUG| utils:0153| [stdout] ---

[Kelsey Steele (kelsey-steele)]

Found on Groovy/linux 5.8.0-31.33

[Christian Brauner (cbrauner)]

I fixed this quite a while ago, actually in September:

commit 3f6e5c831eebf46e4e755bbc1bfbf4c9e1fb0d91 (origin/2020-09-17/fixes_2, 2020-09-17/fixes_2)
Author: Christian Brauner <email address hidden>
Date: Thu Sep 17 17:44:26 2020 +0200

    lxc-usernsexec: setgroups() similar to other places shouldn't fail on EPERM

    FAIL: lxc-tests: lxc-test-usernsexec (1s)
    ---
    as test-userns executing /tmp/autopkgtest.waGEXj/build.Hm3/src/src/tests/lxc-test-usernsexec
    uid=1001 gid=1001 name=test-userns subuid=165536 subgid=165536 ver=1:4.0.4-0ubuntu3
    lxc-utils=1:4.0.4-0ubuntu3 kver=5.8.0-19-generic
    USERNSEXEC=lxc-usernsexec
    nouidgid: PASS
    myuidgid: FAIL - runtest failed 1
      $ lxc-usernsexec -mu:0:1001:1 -mg:0:1001:1 -- /tmp/autopkgtest.waGEXj/build.Hm3/src/src/tests/lxc-test-usernsexec inside f0
      lxc 20200914222824.562 ERROR utils - utils.c:lxc_setgroups:1363 - Operation not permitted - Failed to setgroups()
      kid 73112 is gone 1
    subuidgid: PASS
    bothsets: PASS
    mismatch: PASS
    ERRORS: myuidgid
    ---

    Reported-by: Seth Forshee <email address hidden>
    Signed-off-by: Christian Brauner <email address hidden>

[Marcelo Cerri (mhcerri)]

Christian,

We are still seen this error. For example:

http://10.246.72.46/5.8.0-1027.29-azure/groovy-linux-azure-azure-amd64-5.8.0-Basic_A2-ubuntu_lxc/ubuntu_lxc/results/ubuntu_lxc.exercise/debug/ubuntu_lxc.exercise.DEBUG.html

[Marcelo Cerri (mhcerri)]

Seen with linux-azure 5.8.0-1027.29 for cycle sru-20210315 but also for sru-20210222.

[Krzysztof Kozlowski (krzk)]

Also on: groovy/oracle 5.8.0-1027.28

[Guilherme G. Piccoli (gpiccoli)]

Also on : G/kvm 5.8.0-1026.28

[Guilherme G. Piccoli (gpiccoli)]

Observed on G/KVM, cycle sru-20210510 .

[Ian May (ian-may)]

groovy/linux-aws: 5.8.0-1034.36

[Guilherme G. Piccoli (gpiccoli)]

@cbrauner, do you know the version in which your fix arrived? We are still seeing the same issue in out tests.

Thanks in advance!

[Guilherme G. Piccoli (gpiccoli)]

Oh, seems that is fixed on 4.0.6, based on https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1917601 - right?

I'll mark this bug as duplicate of that one in order we track the progress there.
Groovy is soon EOL'ed, maybe 4.0.6 will never reach that release.

Cheers!

[Krzysztof Kozlowski (krzk)]

Found on groovy/azure 5.8.0-1034.36

[Krzysztof Kozlowski (krzk)]

Found on groovy/oracle 5.8.0-1032.33

[Krzysztof Kozlowski (krzk)]

Found on groovy/aws 5.8.0-1036.38