Re: [syzbot] [block?] [cgroups?] possible deadlock in blkg_conf_prep

From: syzbot

Date: Mon Aug 31 2026 - 01:43:45 EST


Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+144a1c0e22e53a08ef5a@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+144a1c0e22e53a08ef5a@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 3cf7d328 blk-cgroup: use GFP_NOIO for radix tree prelo..
git tree: https://github.com/yutao-intel/linux.git fix-linux-next-block-blk-cgroups
console output: https://syzkaller.appspot.com/x/log.txt?x=134e6379580000
kernel config: https://syzkaller.appspot.com/x/.config?x=8c5c3949d762a91f
dashboard link: https://syzkaller.appspot.com/bug?extid=144a1c0e22e53a08ef5a
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.