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From: Changhui Zhong <czhong@redhat.com>
To: cgroups@vger.kernel.org
Subject: [bug report] leak blkio in cgroup
Date: Thu, 16 May 2024 21:03:56 +0800	[thread overview]
Message-ID: <CAGVVp+W4FdKU44aaoMbwcShEHZoHxg1NVe1EcLJHFQi62XL3mg@mail.gmail.com> (raw)

Hello,

I hit this issue on recent upstream, looks there is a leak blkio in cgroup,
please help check it and let me know if you need any info/testing for
it, thanks.

repo:https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
branch:master
commit HEAD: 3c999d1ae3c75991902a1a7dad0cb62c2a3008b4

reproducer:
1. install podman and container-tools
2. # for i in $(seq 1000); do podman run --name=test --replace centos
/bin/echo 'running'; done >/dev/null
3. # while [ 1 ];do cat /proc/cgroups | grep -e subsys -e blkio |
column -t; sleep 5; done

results:
#subsys_name  hierarchy  num_cgroups  enabled
blkio         0          85           1
#subsys_name  hierarchy  num_cgroups  enabled
blkio         0          138          1
#subsys_name  hierarchy  num_cgroups  enabled
blkio         0          210          1
#subsys_name  hierarchy  num_cgroups  enabled
blkio         0          283          1
#subsys_name  hierarchy  num_cgroups  enabled
blkio         0          357          1
#subsys_name  hierarchy  num_cgroups  enabled
blkio         0          430          1
#subsys_name  hierarchy  num_cgroups  enabled
blkio         0          505          1
#subsys_name  hierarchy  num_cgroups  enabled
blkio         0          578          1
#subsys_name  hierarchy  num_cgroups  enabled
blkio         0          653          1
#subsys_name  hierarchy  num_cgroups  enabled
blkio         0          726          1

--
Best Regards,
     Changhui


                 reply	other threads:[~2024-05-16 13:04 UTC|newest]

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