SYZFAIL: mount cgroup failed

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: e34184f53363 Linux 4.19.210
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=14698984b00000
kernel config: https://syzkaller.appspot.com/x/.config?x=9a6eb8dcb3fd1131
dashboard link: https://syzkaller.appspot.com/bug?extid=76fb474bce5b7db66335
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+76fb47...@syzkaller.appspotmail.com

write(cgroup.subtree_control, +pids) failed: 2
write(cgroup.subtree_control, +rdma) failed: 2
mount(/syzcgroup/net, net) failed: 2
mount(/syzcgroup/net, net_cls) failed: 16
mount(/syzcgroup/net, net_prio) failed: 16
SYZFAIL: mount cgroup failed
(/syzcgroup/net, devices,blkio,freezer): 16
(errno 16: Device or resource busy)
syzkaller login:


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[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 756db2ba8bde Linux 4.14.249
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=12ad5570b00000
kernel config: https://syzkaller.appspot.com/x/.config?x=79558fdc04ec5505
dashboard link: https://syzkaller.appspot.com/bug?extid=e5fd7b0b9f68fa976575

compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:

Reported-by: syzbot+e5fd7b...@syzkaller.appspotmail.com

[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.

[syzbot]