On Fri, Oct 11, 2024 at 06:08:30AM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 4a9fe2a8ac53 dt-bindings: usb: dwc3-imx8mp: add compatible.. > git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing > console output: https://syzkaller.appspot.com/x/log.txt?x=17d067d0580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=4510af5d637450fb > dashboard link: https://syzkaller.appspot.com/bug?extid=f342ea16c9d06d80b585 > compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1312c327980000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/883c5319cb52/disk-4a9fe2a8.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/caf4421ed2ef/vmlinux-4a9fe2a8.xz > kernel image: https://storage.googleapis.com/syzbot-assets/d8e3beb01d49/bzImage-4a9fe2a8.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+f342ea16c9d06d80b585@xxxxxxxxxxxxxxxxxxxxxxxxx > > INFO: task kworker/1:0:24 blocked for more than 143 seconds. > Not tainted 6.12.0-rc1-syzkaller-00027-g4a9fe2a8ac53 #0 > "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > task:kworker/1:0 state:D stack:23808 pid:24 tgid:24 ppid:2 flags:0x00004000 > Workqueue: pm pm_runtime_work Let's try to verify that this problem really was caused by the timer changes to dummy-hcd. The following commit is the one preceding those changes. #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git 920e7522e3ba Alan Stern
