looking at the listing as well as the fact that the syslog excerpt on
the forum is full of:
Apr 28 09:36:48 ci-comp11-dut systemd[1]: Started Session 1816 of user
root.
this is either a systemd bug or a bug with the way systemd is used in
the CI ... moving it to systemd to have a systemd maintainer take a
look.
** Also affects: systemd (Ubuntu)
Importance: Undecided
Status: New
** Changed in: snapd
Status: New => Invalid
** Summary changed:
- Memory leak (/tmp file system filling up)
+ Memory leak (/run file system filling up)
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https://bugs.launchpad.net/bugs/1687507
Title:
Memory leak (/run file system filling up)
Status in snapd:
Invalid
Status in systemd package in Ubuntu:
New
Bug description:
(see also related discussion on forum:
https://forum.snapcraft.io/t/memory-run-memory-file-system-leaking-with-snap-install-remove/429
)
I have a CI system which tests my snap and does a lot install/remove of snap
packages as part
of the operation on some small virtual systems. My /tmp is 200MB
This is on latest Ubuntu Server 16.04 (all packages updated), with the
alternative 4.8 kernel
from the Ubuntu Repo)
At this time, all packages are updated to latest version. I have this bug for
a long time (since I've started building up a CI infrastructure for the Snap -
approx 6 months ago), so this is
not a new bug, but only the more frequent snap testing made it obvious.
In my system the /tmp filesystem fills up - within approx 2..7 days I'm out
of space on it.
All the space is used up under /run/udev/data/ and approx 95% of the files
(around 45'000)
start with +cgroup prefix
I can provide access to a VM in this state if requested (IPv6 only,
contact me with SSH key)
Here is some current output (not yet out of space... may need another
day)
root@ci-comp17-dut:~# df
Filesystem 1K-blocks Used Available Use% Mounted on
udev 1002892 0 1002892 0% /dev
tmpfs 204796 148196 56600 73% /run
/dev/vda1 6060608 3462628 2267076 61% /
tmpfs 1023976 0 1023976 0% /dev/shm
tmpfs 5120 0 5120 0% /run/lock
tmpfs 1023976 0 1023976 0% /sys/fs/cgroup
/dev/loop0 80256 80256 0 100% /snap/core/1577
/dev/loop1 77056 77056 0 100% /snap/core/1337
/dev/loop2 80256 80256 0 100% /snap/core/1441
tmpfs 204796 0 204796 0% /run/user/0
/dev/loop3 14592 14592 0 100% /snap/frr/x1
Attached is a full dir output of /run/udev/data
(ls_run_udev_data.log)
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