linux-kernel - Re: [syzbot] [usb?] INFO: rcu detected stall in schedule

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Date: Tue, 25 Jun 2024 02:22:04 -0700
From: syzbot <syzbot+c793a7eca38803212c61@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org, marcello.bauer@...ements.com, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [usb?] INFO: rcu detected stall in schedule_timeout (6)

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
SYZFAIL: NL802154_CMD_SET_SHORT_ADDR failed

2024/06/25 09:21:37 ignoring optional flag "sandboxArg"="0"
2024/06/25 09:21:37 parsed 1 programs
2024/06/25 09:21:37 [FATAL] failed to run ["./syz-executor" "setup" "fault" "binfmt_misc" "usb" "802154" "swap"]: exit status 67
mkdir(/syzcgroup) failed: 17
mount(binfmt_misc) failed: 16
SYZFAIL: NL802154_CMD_SET_SHORT_ADDR failed
 (errno 16: Device or resource busy)

Tested on:

commit:         ea15ac55 usb: gadget: dummy_hcd: make hrtimer expire i..
git tree:       https://github.com/9elements/linux patch_dummy_hcd_hrtimer_fix
console output: https://syzkaller.appspot.com/x/log.txt?x=17f15612980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=21b12ee2bb702ec4
dashboard link: https://syzkaller.appspot.com/bug?extid=c793a7eca38803212c61
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Note: no patches were applied.