syzbot


INFO: rcu detected stall in tc_modify_qdisc
Status: upstream: reported C repro on 2020/07/29 05:53
Reported-by: syzbot+9f78d5c664a8c33f4cce@syzkaller.appspotmail.com
First crash: 376d, last: 10d

Cause bisection: introduced by (bisect log) :
commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22
Author: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Date: Sat Sep 29 00:59:43 2018 +0000

  tc: Add support for configuring the taprio scheduler

Crash: no output from test machine (log)
Repro: C syz .config

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2021/06/01 12:37 upstream c2131f7e73c9 424dd8e7 .config log syz C
ci-upstream-kasan-gce 2021/05/02 11:26 upstream 17ae69aba89d 424dd8e7 .config log syz C
ci-upstream-kasan-gce 2021/04/02 05:25 upstream 1678e493d530 424dd8e7 .config log syz C
ci-upstream-kasan-gce 2021/03/01 18:41 upstream fe07bfda2fb9 424dd8e7 .config log syz C
ci-upstream-kasan-gce 2021/01/17 01:57 upstream 0da0a8a0a0e1 424dd8e7 .config log syz C
ci-upstream-kasan-gce 2020/12/17 22:14 upstream d64c6f96ba86 424dd8e7 .config log report syz C
ci-upstream-kasan-gce 2020/10/24 14:32 upstream f11901ed723d 424dd8e7 .config log syz C
Crashes (29):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-kasan-gce 2021/06/27 16:59 net-next ff8744b5eb11 9d2ab5df .config log report syz C INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/06/27 13:14 net-next ff8744b5eb11 9d2ab5df .config log report syz C INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce 2020/08/16 23:54 upstream 4b6c093e21d3 424dd8e7 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/09 10:42 upstream 06a81c1c7db9 f721e4a0 .config log report syz C
ci-upstream-kasan-gce-root 2020/08/07 22:36 upstream d6efb3ac3e6c cb436c69 .config log report syz C
ci-upstream-net-this-kasan-gce 2020/08/08 00:42 net 8912fd6a61d7 cb436c69 .config log report syz C
ci-upstream-net-this-kasan-gce 2020/07/28 18:12 net 181964e619b7 cb93dc6a .config log report syz C
ci-upstream-net-kasan-gce 2020/08/08 02:25 net-next bfdd5aaa54b0 cb436c69 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/08/13 11:15 linux-next bc09acc9f224 bc15f7db .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/07/06 12:29 upstream 3dbdb38e2869 6c4484eb .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce-selinux-root 2021/06/29 00:08 upstream 62fb9874f5da 9d2ab5df .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2021/06/28 10:10 net d6765985a42a 9d2ab5df .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/07/13 12:15 net-next 5e437416ff66 f415556d .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce 2020/09/04 11:31 upstream e28f0104343d abf9ba4f .config log report
ci-upstream-kasan-gce 2020/08/26 04:44 upstream abb3438d69fb 344da168 .config log report
ci-upstream-kasan-gce 2020/07/28 13:41 upstream 92ed30191993 cb93dc6a .config log report
ci-upstream-net-this-kasan-gce 2020/09/24 14:03 net 77972b55fb9d 54289b08 .config log report info
ci-upstream-net-this-kasan-gce 2020/08/24 09:32 net cb95712138ec cef5ae68 .config log report
ci-upstream-net-this-kasan-gce 2020/07/23 15:58 net 26cb7085c898 340ea530 .config log report
ci-upstream-net-kasan-gce 2020/11/16 09:31 net-next 0064c5c1b3bf 1bf9a662 .config log report info
ci-upstream-net-kasan-gce 2020/09/07 04:55 net-next 02a20d4fef3d abf9ba4f .config log report
ci-upstream-net-kasan-gce 2020/08/28 14:49 net-next 50aba46c234e 816e0689 .config log report
ci-upstream-net-kasan-gce 2020/08/27 10:53 net-next f09665811b14 816e0689 .config log report
ci-upstream-net-kasan-gce 2020/08/21 17:28 net-next d0a84e1f38d9 6436ce4b .config log report
ci-upstream-net-kasan-gce 2020/08/17 16:28 net-next 7fca4dee610d 424dd8e7 .config log report
ci-upstream-net-kasan-gce 2020/08/13 13:57 net-next bfdd5aaa54b0 bc15f7db .config log report
ci-upstream-net-kasan-gce 2020/08/13 10:53 net-next bfdd5aaa54b0 bc15f7db .config log report
ci-upstream-net-kasan-gce 2020/07/22 15:06 net-next fa56a987449b 128cd85f .config log report
ci-upstream-linux-next-kasan-gce-root 2020/07/13 08:27 linux-next d31958b30ea3 9ebcc5b1 .config log report