sudo strace -f lttng list --kernel --syscall
....
connect(3, {sa_family=AF_UNIX,
sun_path="/var/run/lttng/client-lttng-sessiond"}, 110) = 0
geteuid() = 0
getegid() = 0
sendmsg(3, {msg_name=NULL, msg_namelen=0,
msg_iov=[{iov_base="\0\0\0\4\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
iov_len=13156}], msg_iovlen=1, msg_control=[{cmsg_len=28,
cmsg_level=SOL_SOCKET, cmsg_type=SCM_CREDENTIALS, cmsg_data={pid=8563, uid=0,
gid=0}}], msg_controllen=28, msg_flags=0}, 0) = 13156
recvmsg(3, {msg_name=NULL, msg_namelen=0,
msg_iov=[{iov_base="\0\0\0\4\0\0\0\32\0\0\0\0\0\0\0\0\0\0\0\0", iov_len=20}],
msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 20
shutdown(3, SHUT_RDWR) = 0
close(3) = 0
write(2, "Error: Unable to list system cal"..., 54Error: Unable to list system
calls: Not enough memory
) = 54
geteuid() = 0
getuid() = 0
getegid() = 0
getgid() = 0
This seems wrong - there are no ENOMEM syscall returns to trigger this
failure.
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https://bugs.launchpad.net/bugs/1671063
Title:
ubuntu_lttng_smoke_test failed on Yakkety s390x (zVM)
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