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: 560d, last: 3d18h

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-net-kasan-gce 2021/08/30 08:37 net-next eaf2aaec0be4 9d2ab5df .config log report syz C
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 (78):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2022/01/02 13:42 upstream 278218f6778b e1768e9c .config log report syz C INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce 2021/12/28 05:30 upstream a8ad9a2434dc 6b3c5e64 .config log report syz C INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2022/01/02 16:08 net ae81de737885 e1768e9c .config log report syz C INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/12/28 04:17 net-next b4aadd207322 6b3c5e64 .config log report syz C INFO: rcu detected stall in tc_modify_qdisc
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-root 2022/01/15 00:48 upstream fb3b0673b7d5 53e00b45 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce 2021/12/13 06:31 upstream 90d9fbc16b69 49ca1f59 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce 2021/11/27 13:17 upstream c5c17547b778 63eeac02 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce 2021/11/18 11:24 upstream 42eb8fdac2fc cafff8b6 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce-root 2021/11/18 01:08 upstream ee1703cda8dc cafff8b6 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce-root 2021/11/12 11:05 upstream 5833291ab6de 75b04091 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce 2021/11/07 02:30 upstream 512b7931ad05 4c1be0be .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce-root 2021/11/01 15:46 upstream 8bb7eca972ad 098b5d53 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce 2021/10/31 03:51 upstream 119c85055d86 098b5d53 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce 2021/10/03 05:37 upstream ab2a7a35c4e7 db0f5787 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce 2021/09/08 21:38 upstream ac08b1c68d1b e2776ee4 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce 2021/07/30 21:43 upstream 764a5bc89b12 6c236867 .config log report info INFO: rcu detected stall in tc_modify_qdisc
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-kasan-gce-386 2021/11/22 21:04 upstream 136057256686 545ab074 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce-386 2021/11/21 10:43 upstream 923dcc5eb0c1 4eb20a4e .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-kasan-gce-386 2021/09/27 02:32 upstream 996148ee05d0 78494d16 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2022/01/08 02:51 net dc35616e6c29 2ca0d385 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2021/12/11 18:07 net ab443c539167 49ca1f59 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2021/12/02 20:35 net a37a0ee4d25c 61f86278 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2021/12/02 06:53 net 3968e3cafafb 61f86278 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2021/11/17 03:49 net 848e5d66fa31 cafff8b6 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2021/11/12 00:17 net d336509cb9d0 75b04091 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2021/11/11 19:23 net d336509cb9d0 75b04091 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2021/11/11 05:12 net 0315a075f134 75b04091 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2021/11/09 14:47 net 0b9111922b1f 59bcaf9a .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2021/10/29 08:25 net 411a44c24a56 2353a3ec .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2021/10/02 01:57 net ca6e11c337da cc80db95 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2021/09/26 15:28 net b193e15ac69d 8cac236e .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-this-kasan-gce 2021/09/18 04:30 net 02319bf15acf 70b76c1d .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 2022/01/21 11:06 net-next fe8152b38d3a ab3d9f17 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/12/28 00:13 net-next 32f52e8e78d3 5140bd58 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/12/24 00:10 net-next bb53bcb2b104 6caa12e4 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/12/09 11:32 net-next 3a262c71d3e8 a4a2a501 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/12/06 00:54 net-next ce83278f313c a617004c .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/11/30 16:00 net-next 72a2ff567fc3 80270552 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/11/30 00:38 net-next 2f7ed29f2c54 d0830353 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/11/23 22:58 net-next 2106efda785b 545ab074 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/11/12 05:04 net-next 5833291ab6de 75b04091 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/11/06 10:17 net-next cc0356d6a02e 4c1be0be .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/11/05 16:49 net-next cc0356d6a02e 4c1be0be .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/11/04 06:41 net-next cc0356d6a02e 4c1be0be .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/10/06 08:00 net-next 49ed8dde3715 0a63fd36 .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/09/18 16:55 net-next 0efcc3f20145 70b76c1d .config log report info INFO: rcu detected stall in tc_modify_qdisc
ci-upstream-net-kasan-gce 2021/09/17 10:17 net-next 561bed688bff 5b989942 .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