** Also affects: lxc (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
On a fresh Ubuntu 16 release, commands started by lxc-attach such as dd
are being killed, and lxc-attach return a zero status.
This scenario is working on Ubuntu 15 with previous lxc release, but not
on new LXC 2.0.0 (same issue on 2.0.1 too)
sudo apt-get -y install lxc
sudo lxc-create -n utest -t ubuntu -- -a amd64 -b $USER
sudo lxc-start -d --name utest
- sudo lxc-attach -n container -- dd if=/dev/zero of=/tmp/foo bs=1M count=10
2>/tmp/bar
- sudo lxc-attach -n utest_bizio_tests -- ls -lh /tmp/foo
+ sudo lxc-attach -n utest -- dd if=/dev/zero of=/tmp/foo bs=1M count=10
2>/tmp/bar
+ sudo lxc-attach -n utest -- ls -lh /tmp/foo
-rw-r--r-- 1 root root 0 May 18 05:46 /tmp/foo
Might be related to bug 1553097
NOTE: Sometimes the "sudo lxc-attach -n utest_bizio_tests -- ls -lh
/tmp/foo" ALSO does not return anything (no output)
I'm available for any additional info.
** Description changed:
On a fresh Ubuntu 16 release, commands started by lxc-attach such as dd
- are being killed, and lxc-attach return a zero status.
+ are being killed WHEN REDIRECTING stderr (to a file), and lxc-attach
+ return a zero status. Command works fine without the redirection.
This scenario is working on Ubuntu 15 with previous lxc release, but not
on new LXC 2.0.0 (same issue on 2.0.1 too)
sudo apt-get -y install lxc
sudo lxc-create -n utest -t ubuntu -- -a amd64 -b $USER
sudo lxc-start -d --name utest
sudo lxc-attach -n utest -- dd if=/dev/zero of=/tmp/foo bs=1M count=10
2>/tmp/bar
sudo lxc-attach -n utest -- ls -lh /tmp/foo
-rw-r--r-- 1 root root 0 May 18 05:46 /tmp/foo
Might be related to bug 1553097
NOTE: Sometimes the "sudo lxc-attach -n utest_bizio_tests -- ls -lh
/tmp/foo" ALSO does not return anything (no output)
I'm available for any additional info.
** Summary changed:
- lxc-attach strange tty behavior with dd
+ lxc-attach strange tty behavior when stderr is redirected to a file
** Summary changed:
- lxc-attach strange tty behavior when stderr is redirected to a file
+ lxc-attach strange tty behavior (kills command) when stderr is redirected to
a file
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https://bugs.launchpad.net/bugs/1583237
Title:
lxc-attach strange tty behavior (kills command) when stderr is
redirected to a file
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