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

From: syzbot

Date: Sun Aug 30 2026 - 23:50:11 EST


Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
lost connection to test machine



Tested on:

commit: 74b69790 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=1781ec15580000
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.