I can reproduce the failure manually now, in that test environment.
Saving the info here.
root@n-ccache:/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress#
/usr/bin/ssh -m hmac-sha2-512 -c aes128-ctr -F /tmp/andreas//regress/ssh_proxy
-o proxycommand="sudo env SSH_SK_HELPER= sh
/tmp/andreas//regress/sshd-log-wrapper.sh -i -f
/tmp/andreas//regress/sshd_proxy | /tmp/andreas//regress/modpipe -wm
xor:2900:1" -oServerAliveInterval=1 -oServerAliveCountMax=30 999.999.999.999
printf "%4096" " "
# cat ssh_proxy
Host *
Hostname 127.0.0.1
HostKeyAlias localhost-with-alias
Port 4242
User openssh-tests
GlobalKnownHostsFile
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/known_hosts
UserKnownHostsFile
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/known_hosts
PubkeyAuthentication yes
ChallengeResponseAuthentication no
PasswordAuthentication no
BatchMode yes
StrictHostKeyChecking yes
LogLevel DEBUG3
SecurityKeyProvider
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/misc/sk-dummy/sk-dummy.so
IdentityFile /tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/ssh-ed25519
IdentityFile
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/[email protected]
IdentityFile
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/ecdsa-sha2-nistp256
IdentityFile
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/ecdsa-sha2-nistp384
IdentityFile
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/ecdsa-sha2-nistp521
IdentityFile
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/[email protected]
IdentityFile /tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/ssh-dss
IdentityFile /tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/ssh-rsa
proxycommand sudo env SSH_SK_HELPER=""
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/sshd-log-wrapper.sh -i -f
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/sshd_proxy
# cat sshd-log-wrapper.sh
#!/bin/sh
timestamp="`/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/timestamp`"
logfile="/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/log/${timestamp}.sshd.$$.log"
rm -f /tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/sshd.log
touch $logfile
test -z "sudo" || chown openssh-tests $logfile
ln -f -s ${logfile}
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/sshd.log
echo "Executing: /usr/sbin/sshd $@" log ${logfile}
>>/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/regress.log
echo "Executing: /usr/sbin/sshd $@" >>${logfile}
exec /usr/sbin/sshd -E${logfile} "$@"
# cat sshd_proxy
StrictModes no
Port 4242
AddressFamily inet
ListenAddress 127.0.0.1
#ListenAddress ::1
PidFile
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/pidfile
AuthorizedKeysFile
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/authorized_keys_%u
LogLevel DEBUG3
AcceptEnv _XXX_TEST_*
AcceptEnv _XXX_TEST
Subsystem sftp /usr/lib/openssh/sftp-server
UsePAM yes
StrictModes no
StrictModes no
SecurityKeyProvider
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/misc/sk-dummy/sk-dummy.so
HostKey /tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/ssh-ed25519
HostKey
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/[email protected]
HostKey /tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/ecdsa-sha2-nistp256
HostKey /tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/ecdsa-sha2-nistp384
HostKey /tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/ecdsa-sha2-nistp521
HostKey
/tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/[email protected]
HostKey /tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/ssh-dss
HostKey /tmp/autopkgtest.mlareh/autopkgtest_tmp/user/regress/ssh-rsa
Ciphers=aes128-ctr
MACs=hmac-sha2-512
I tried different values for the printf amount (4096, 2048, 16386). I also
increased the buffer size in the modpipe.c utility. Nothing like this helped.
I'm trying now to get rid of the modpipe intermediary, to see if that's the
thing getting in the way of the flow of data.
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https://bugs.launchpad.net/bugs/2091943
Title:
OpenSSH autopkgtests do not like tilde character in its version string
(e.g. ~ppa1)
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