Public bug reported:
cpuset package in focal has a bug in the "set" subcommand.
The bug
------------------
Docker file used to reproduce:
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FROM ubuntu:focal
RUN apt update && apt install -y cpuset python3-future
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Reproducing the bug
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$ docker run --privileged --rm -it csettest bash
root@7a6d182dc51d:/# cset set -c 0 shrtnm
cset: --> created cpuset "shrtnm"
root@7a6d182dc51d:/# cset set -l
cset:
Name CPUs-X MEMs-X Tasks Subs Path
------------ ---------- - ------- - ----- ---- ----------
root 0-3 n 0 n 2 1 /
shrtnm 0 n 0 n 0 0 /shrtnm
root@7a6d182dc51d:/# cset set -c 0 shortname
cset: --> created cpuset "shortname"
root@7a6d182dc51d:/# cset set -l
cset:
Name CPUs-X MEMs-X Tasks Subs Path
------------ ---------- - ------- - ----- ---- ----------
root 0-3 n 0 n 2 2 /
shortname 0 n 0 n 0 0 /shortname
shrtnm 0 n 0 n 0 0 /shrtnm
root@7a6d182dc51d:/# cset set -c 0 looooongname
cset: --> created cpuset "looooongname"
root@7a6d182dc51d:/# cset set -l
cset:
Name CPUs-X MEMs-X Tasks Subs Path
------------ ---------- - ------- - ----- ---- ----------
root 0-3 n 0 n 2 3 /
shortname 0 n 0 n 0 0 /shortname
looooongname 0 n 0 n 0 0 /looooongname
shrtnm 0 n 0 n 0 0 /shrtnm
root@7a6d182dc51d:/# cset set -c 0 looooongnameeeeeeeeeeeeeeee
cset: --> created cpuset "looooongnameeeeeeeeeeeeeeee"
root@7a6d182dc51d:/# cset set -l
Traceback (most recent call last):
File "/usr/bin/cset", line 47, in <module>
main()
File "/usr/lib/python3/dist-packages/cpuset/main.py", line 234, in main
command.func(parser, options, args)
File "/usr/lib/python3/dist-packages/cpuset/commands/set.py", line 186, in
func
else: list_sets('root', options.recurse, options.usehex)
File "/usr/lib/python3/dist-packages/cpuset/commands/set.py", line 243, in
list_sets
pl.append(set_details(s,' ', 78, usehex))
File "/usr/lib/python3/dist-packages/cpuset/commands/set.py", line 487, in
set_details
pathb = set.path[len(set.path//2):]
TypeError: unsupported operand type(s) for //: 'str' and 'int'
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Seems like the issue surfaces once the cpuset name get long enough.
Possible fix
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This patch seems to resolve the issue
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commands/set.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/commands/set.py b/commands/set.py
index c71f37f..7d0d382 100644
--- a/commands/set.py
+++ b/commands/set.py
@@ -484,7 +484,7 @@ def set_details(name, indent=None, width=None,
usehex=False):
if width != 0 and len(tst) > width:
target = width - len(out)
patha = set.path[:len(set.path)//2-3]
- pathb = set.path[len(set.path//2):]
+ pathb = set.path[len(set.path)//2:]
patha = patha[:target//2-3]
pathb = pathb[-target//2:]
out += patha + '...' + pathb
--
2.25.1
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After applying the patch:
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$ cset set -l
cset:
Name CPUs-X MEMs-X Tasks Subs Path
------------ ---------- - ------- - ----- ---- ----------
root 0-3 n 0 n 2 4 /
shortname 0 n 0 n 0 0 /shortname
looooongnameeeeeeeeeeeeeeee 0 n 0 n 0 0 /looo...eeeeeeee
looooongname 0 n 0 n 0 0 /looooongname
shrtnm 0 n 0 n 0 0 /shrtnm
-----
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** Affects: cpuset (Ubuntu)
Importance: Undecided
Status: New
** Tags: focal
--
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https://bugs.launchpad.net/bugs/1907891
Title:
python TypeError when listing long cgroup names
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