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Persistent container cannot be started

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Metadata

Project
snapcraft (launchpad)
Number
#1716738
Type
issue
State
closed
Author
~kyrofa
Labels
container
Created
Updated
Closed

Current evaluation

⚠️ This summary may be outdated — the issue content or evaluation prompts have changed since this evaluation was made.

Closed without resolution or comments. The report detailed Snapcraft persistent containers failing to start due to LXC idmap and cgroup errors. The issue appears abandoned due to prolonged inactivity.

Suggested action: —

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Issue body

First of all, note that lxd on my system works fine, I use it every day. However, using Snapcraft's persistent containers doesn't work. Check this out (running out of Snapcraft master): $ SNAPCRAFT_CONTAINER_BUILDS=1 snapcraft "grade" property not specified: defaulting to "stable" Using default LXD remote because SNAPCRAFT_CONTAINER_BUILDS is set to 1 Creating snapcraft-opencv-example Device fuse added to snapcraft-opencv-example error: Error calling 'lxd forkstart snapcraft-opencv-example /var/lib/lxd/containers /var/log/lxd/snapcraft-opencv-example/lxc.conf': err='Failed to run: /usr/bin/lxd forkstart snapcraft-opencv-example /var/lib/lxd/containers /var/log/lxd/snapcraft-opencv-example/lxc.conf: '   lxc 20170912175704.321 ERROR lxc_cgfsng - cgroups/cgfsng.c:create_path_for_hierarchy:1328 - Path "/sys/fs/cgroup/systemd//lxc/snapcraft-opencv-example" already existed.   lxc 20170912175704.321 ERROR lxc_cgfsng - cgroups/cgfsng.c:cgfsng_create:1385 - No such file or directory - Failed to create /sys/fs/cgroup/systemd//lxc/snapcraft-opencv-example: No such file or directory   lxc 20170912175704.321 ERROR lxc_cgfsng - cgroups/cgfsng.c:create_path_for_hierarchy:1328 - Path "/sys/fs/cgroup/systemd//lxc/snapcraft-opencv-example-1" already existed.   lxc 20170912175704.321 ERROR lxc_cgfsng - cgroups/cgfsng.c:cgfsng_create:1385 - No such file or directory - Failed to create /sys/fs/cgroup/systemd//lxc/snapcraft-opencv-example-1: No such file or directory   lxc 20170912175704.333 ERROR lxc_start - start.c:lxc_spawn:1186 - Failed to set up id mapping.   lxc 20170912175704.401 ERROR lxc_start - start.c:__lxc_start:1358 - Failed to spawn container "snapcraft-opencv-example".   lxc 20170912175704.953 ERROR lxc_conf - conf.c:run_buffer:416 - Script exited with status 1.   lxc 20170912175704.953 ERROR lxc_start - start.c:lxc_fini:546 - Failed to run lxc.hook.post-stop for container "snapcraft-opencv-example".   lxc 20170912175704.955 ERROR lxc_conf - conf.c:userns_exec_1:4608 - Error setting up child mappings   lxc 20170912175704.955 ERROR lxc_cgfsng - cgroups/cgfsng.c:recursive_destroy:1288 - Error destroying /sys/fs/cgroup/systemd//lxc/snapcraft-opencv-example-2   lxc 20170912175704.957 ERROR lxc_conf - conf.c:userns_exec_1:4608 - Error setting up child mappings   lxc 20170912175704.957 ERROR lxc_cgfsng - cgroups/cgfsng.c:recursive_destroy:1288 - Error destroying /sys/fs/cgroup/devices//lxc/snapcraft-opencv-example-2   lxc 20170912175704.959 ERROR lxc_conf - conf.c:userns_exec_1:4608 - Error setting up child mappings   lxc 20170912175704.959 ERROR lxc_cgfsng - cgroups/cgfsng.c:recursive_destroy:1288 - Error destroying /sys/fs/cgroup/pids//lxc/snapcraft-opencv-example-2   lxc 20170912175704.961 ERROR lxc_conf - conf.c:userns_exec_1:4608 - Error setting up child mappings   lxc 20170912175704.961 ERROR lxc_cgfsng - cgroups/cgfsng.c:recursive_destroy:1288 - Error destroying /sys/fs/cgroup/cpu//lxc/snapcraft-opencv-example-2   lxc 20170912175704.963 ERROR lxc_conf - conf.c:userns_exec_1:4608 - Error setting up child mappings   lxc 20170912175704.963 ERROR lxc_cgfsng - cgroups/cgfsng.c:recursive_destroy:1288 - Error destroying /sys/fs/cgroup/perf_event//lxc/snapcraft-opencv-example-2   lxc 20170912175704.965 ERROR lxc_conf - conf.c:userns_exec_1:4608 - Error setting up child mappings   lxc 20170912175704.965 ERROR lxc_cgfsng - cgroups/cgfsng.c:recursive_destroy:1288 - Error destroying /sys/fs/cgroup/blkio//lxc/snapcraft-opencv-example-2   lxc 20170912175704.966 ERROR lxc_conf - conf.c:userns_exec_1:4608 - Error setting up child mappings   lxc 20170912175704.966 ERROR lxc_cgfsng - cgroups/cgfsng.c:recursive_destroy:1288 - Error destroying /sys/fs/cgroup/hugetlb//lxc/snapcraft-opencv-example-2   lxc 20170912175704.968 ERROR lxc_conf - conf.c:userns_exec_1:4608 - Error setting up child mappings   lxc 20170912175704.968 ERROR lxc_cgfsng - cgroups/cgfsng.c:recursive_destroy:1288 - Error destroying /sys/fs/cgroup/net_cls//lxc/snapcraft-opencv-example-2   lxc 20170912175704.970 ERROR lxc_conf - conf.c:userns_exec_1:4608 - Error setting up child mappings   lxc 20170912175704.970 ERROR lxc_cgfsng - cgroups/cgfsng.c:recursive_destroy:1288 - Error destroying /sys/fs/cgroup/freezer//lxc/snapcraft-opencv-example-2   lxc 20170912175704.972 ERROR lxc_conf - conf.c:userns_exec_1:4608 - Error setting up child mappings   lxc 20170912175704.972 ERROR lxc_cgfsng - cgroups/cgfsng.c:recursive_destroy:1288 - Error destroying /sys/fs/cgroup/cpuset//lxc/snapcraft-opencv-example-2   lxc 20170912175704.974 ERROR lxc_conf - conf.c:userns_exec_1:4608 - Error setting up child mappings   lxc 20170912175704.974 ERROR lxc_cgfsng - cgroups/cgfsng.c:recursive_destroy:1288 - Error destroying /sys/fs/cgroup/memory//lxc/snapcraft-opencv-example-2 Try `lxc info --show-log local:snapcraft-opencv-example` for more info Stopping local:snapcraft-opencv-example error: The container is already stopped Try `lxc info --show-log local:snapcraft-opencv-example` for more info Traceback (most recent call last):   File "/home/kyrofa/src/snapcraft/snapcraft/internal/lxd.py", line 130, in _ensure_started     self._ensure_container()   File "/home/kyrofa/src/snapcraft/snapcraft/internal/lxd.py", line 331, in _ensure_container     'lxc', 'start', self._container_name])   File "/usr/lib/python3.5/subprocess.py", line 581, in check_call     raise CalledProcessError(retcode, cmd) subprocess.CalledProcessError: Command '['lxc', 'start', 'local:snapcraft-opencv-example']' returned non-zero exit status 1 During handling of the above exception, another exception occurred: Traceback (most recent call last):   File "/home/kyrofa/src/snapcraft/bin/snapcraft", line 36, in <module>     obj=dict(project=snapcraft.ProjectOptions()))   File "/usr/lib/python3/dist-packages/click/core.py", line 716, in __call__     return self.main(*args, **kwargs)   File "/usr/lib/python3/dist-packages/click/core.py", line 696, in main     rv = self.invoke(ctx)   File "/usr/lib/python3/dist-packages/click/core.py", line 1037, in invoke     return Command.invoke(self, ctx)   File "/usr/lib/python3/dist-packages/click/core.py", line 889, in invoke     return ctx.invoke(self.callback, **ctx.params)   File "/usr/lib/python3/dist-packages/click/core.py", line 534, in invoke     return callback(*args, **kwargs)   File "/usr/lib/python3/dist-packages/click/decorators.py", line 17, in new_func     return f(get_current_context(), *args, **kwargs)   File "/home/kyrofa/src/snapcraft/snapcraft/cli/__init__.py", line 110, in run     ctx.forward(lifecyclecli.commands['snap'])   File "/usr/lib/python3/dist-packages/click/core.py", line 552, in forward     return self.invoke(cmd, **kwargs)   File "/usr/lib/python3/dist-packages/click/core.py", line 534, in invoke     return callback(*args, **kwargs)   File "/home/kyrofa/src/snapcraft/snapcraft/cli/lifecycle.py", line 132, in snap     container_config, output, directory)   File "/home/kyrofa/src/snapcraft/snapcraft/internal/lifecycle.py", line 322, in containerbuild     metadata=config.get_metadata()).execute(step, args)   File "/home/kyrofa/src/snapcraft/snapcraft/internal/lxd.py", line 404, in execute     super().execute(step, args)   File "/home/kyrofa/src/snapcraft/snapcraft/internal/lxd.py", line 146, in execute     with self._ensure_started():   File "/usr/lib/python3.5/contextlib.py", line 59, in __enter__     return next(self.gen)   File "/home/kyrofa/src/snapcraft/snapcraft/internal/lxd.py", line 136, in _ensure_started     check_call(['lxc', 'stop', '-f', self._container_name])   File "/usr/lib/python3.5/subprocess.py", line 581, in check_call     raise CalledProcessError(retcode, cmd) subprocess.CalledProcessError: Command '['lxc', 'stop', '-f', 'local:snapcraft-opencv-example']' returned non-zero exit status 1 I get the same errors if I run `lxc start snapcraft-openc-example` myself, and other container work fine. Look at the different configs: $ lxc config show container-that-works architecture: x86_64 config:   volatile.base_image: 58f90cbf68927c3fc43e6ee1386446a04f3d8068c1a75a291339cb2be01dec08   volatile.eth0.hwaddr: 00:16:3e:02:b3:34   volatile.idmap.base: "0"   volatile.idmap.next: '[]'   volatile.last_state.idmap: '[]'   volatile.last_state.power: STOPPED devices:   root:     path: /     type: disk ephemeral: false profiles: - snapcraft-src stateful: false $ lxc config show snapcraft-opencv-example architecture: x86_64 config:   environment.LC_ALL: C.UTF-8   environment.SNAPCRAFT_SETUP_CORE: "1"   raw.idmap: both 1000 0   volatile.base_image: 58f90cbf68927c3fc43e6ee1386446a04f3d8068c1a75a291339cb2be01dec08   volatile.eth0.hwaddr: 00:16:3e:6f:57:da   volatile.idmap.base: "0"   volatile.idmap.next: '[{"Isuid":true,"Isgid":true,"Hostid":1000,"Nsid":0,"Maprange":1},{"Isuid":true,"Isgid":false,"Hostid":165537,"Nsid":1,"Maprange":65535},{"Isuid":true,"Isgid":true,"Hostid":1000,"Nsid":0,"Maprange":1},{"Isuid":false,"Isgid":true,"Hostid":165537,"Nsid":1,"Maprange":65535}]'   volatile.last_state.idmap: '[{"Isuid":true,"Isgid":true,"Hostid":1000,"Nsid":0,"Maprange":1},{"Isuid":true,"Isgid":false,"Hostid":165537,"Nsid":1,"Maprange":65535},{"Isuid":true,"Isgid":true,"Hostid":1000,"Nsid":0,"Maprange":1},{"Isuid":false,"Isgid":true,"Hostid":165537,"Nsid":1,"Maprange":65535}]'   volatile.last_state.power: RUNNING devices:   fuse:     path: /dev/fuse     type: unix-char   root:     path: /     type: disk ephemeral: false profiles: - default stateful: false Since the errors are about mappings, I suspect something is wrong in the idmap.

Evaluation history

Date Model Scores Action Summary
qwen/qwen3.6-35b-a3b — — Closed without resolution or comments. The report detailed Snapcraft persistent containers failing to start due to LXC idmap and cgroup errors. The issue appears abandoned due to prolonged inactivity.
qwen/qwen3.6-35b-a3b — — Closed without resolution due to inactivity. Persistent container startup failed due to LXD cgroup and idmap errors. No comments or fixes were provided, indicating the issue was abandoned.
qwen3.6-35b-a3b-mtp-q6 — — Closed without resolution or comments after over eight years. The report details LXD persistent container startup failures caused by cgroup and idmap conflicts. Likely abandoned due to inactivity.

Update history

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Related issues

Issue Project State Summary Similarity
#1700703 container builds fail after creating the container snapcraft (launchpad) closed Closed without comments or resolution. The LXD id mapping failure during snapcraft container builds was likely abandoned or superseded by newer container build implementations.
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