syzbot has bisected this bug to: commit b78e9d63a3b6307b6b786e6ba189d3978b60ceb5 Author: Thomas Bogendoerfer <tbogendoerfer@xxxxxxx> Date: Thu Jan 9 12:33:40 2020 +0000 MIPS: SGI-IP27: use asm/sn/agent.h for including HUB related stuff bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17330a23e00000 start commit: 0d1c3530 net_sched: keep alloc_hash updated after hash all.. git tree: net final crash: https://syzkaller.appspot.com/x/report.txt?x=14b30a23e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=10b30a23e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=c2e311dba9a02ba9 dashboard link: https://syzkaller.appspot.com/bug?extid=b1212b1215db82ff9211 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14e76a39e00000 Reported-by: syzbot+b1212b1215db82ff9211@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: b78e9d63a3b6 ("MIPS: SGI-IP27: use asm/sn/agent.h for including HUB related stuff") For information about bisection process see: https://goo.gl/tpsmEJ#bisection