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INFO: rcu detected stall in tc_modify_qdisc

Status: upstream: reported C repro on 2020/07/29 05:53
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+9f78d5c664a8c33f4cce@syzkaller.appspotmail.com
First crash: 1901d, last: 2d07h
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
  
▶ ▼ Discussions (7)
Title Replies (including bot) Last reply
[syzbot] Monthly net report (Jul 2024) 0 (1) 2024/07/01 10:28
[syzbot] Monthly net report (Apr 2024) 0 (1) 2024/04/30 07:11
[syzbot] Monthly net report (Feb 2024) 0 (1) 2024/02/27 09:32
[syzbot] Monthly net report (Jan 2024) 0 (1) 2024/01/26 21:54
[syzbot] Monthly net report (Dec 2023) 0 (1) 2023/12/27 09:18
[syzbot] Monthly net report (Nov 2023) 5 (6) 2023/11/28 15:05
INFO: rcu detected stall in tc_modify_qdisc 8 (9) 2020/07/30 22:01
▶ ▼ Similar bugs (11)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.6 INFO: rcu detected stall in tc_modify_qdisc 1 1 99d 99d 0/2 upstream: reported on 2025/06/19 23:42
linux-6.1 INFO: rcu detected stall in tc_modify_qdisc 1 3 439d 477d 0/3 auto-obsoleted due to no activity on 2024/10/23 00:42
linux-6.1 INFO: rcu detected stall in tc_modify_qdisc (2) origin:upstream 1 C 10 15d 323d 0/3 upstream: reported C repro on 2024/11/08 00:04
linux-5.15 INFO: rcu detected stall in tc_modify_qdisc origin:lts-only 1 C error 12 1d03h 409d 0/3 upstream: reported C repro on 2024/08/13 15:46
android-6-1 BUG: soft lockup in tc_modify_qdisc 1 C done done 53 668d 700d 0/2 auto-obsoleted due to no activity on 2024/02/06 04:01
android-5-15 BUG: soft lockup in tc_modify_qdisc (2) 1 1 20d 20d 0/2 premoderation: reported on 2025/09/06 05:55
android-5-15 BUG: soft lockup in tc_modify_qdisc origin:lts 1 C done done 254 758d 813d 0/2 auto-obsoleted due to no activity on 2023/11/09 01:01
linux-5.15 BUG: soft lockup in tc_modify_qdisc origin:upstream 1 C error 1 847d 847d 0/3 auto-obsoleted due to no activity on 2023/09/11 01:53
linux-6.1 BUG: soft lockup in tc_modify_qdisc origin:upstream 1 C done 1 845d 845d 3/3 fixed on 2023/07/10 11:22
android-5-10 BUG: soft lockup in tc_modify_qdisc 1 C done done 314 759d 813d 0/2 auto-obsoleted due to no activity on 2023/11/07 07:54
android-5-10 BUG: soft lockup in tc_modify_qdisc (2) 1 C 14 17h57m 21d 0/2 upstream: reported C repro on 2025/09/05 07:56
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/06/14 01:05 21m retest repro upstream report log
2025/06/14 01:05 37m retest repro upstream OK log
2025/06/14 01:05 25m retest repro upstream OK log
2025/06/14 01:05 19m retest repro upstream report log
2025/06/14 01:05 32m retest repro upstream OK log
2025/05/25 11:20 45m retest repro upstream report log
2025/05/25 11:20 17m retest repro upstream report log
2025/05/25 11:20 23m retest repro upstream OK log
2025/05/25 11:20 19m retest repro upstream report log
2025/05/25 11:20 24m retest repro upstream OK log
▶ ▼ Fix bisection attempts (11)
Created Duration User Patch Repo Result
2023/04/20 02:16 34m bisect fix upstream OK (0) job log log
2023/03/20 00:54 36m bisect fix upstream OK (0) job log log
2021/08/30 08:09 28m bisect fix net-next-old OK (0) job log log
2021/06/01 12:07 29m bisect fix upstream OK (0) job log log
2021/05/02 10:56 29m bisect fix upstream OK (0) job log log
2021/04/02 04:56 28m bisect fix upstream OK (0) job log log
2021/03/01 18:12 28m bisect fix upstream OK (0) job log log
2021/02/16 01:57 0m bisect fix upstream error job log
2021/01/17 01:30 27m bisect fix upstream OK (0) job log log
2020/12/17 21:49 25m bisect fix upstream OK (0) job log log
2020/10/24 14:03 28m bisect fix upstream OK (0) job log log

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=5afc/1/0x4000000000000000 softirq=18640/18644 fqs=60
rcu: 	(detected by 1, t=10502 jiffies, g=11881, q=623 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6125 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:26 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:109 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:127 [inline]
RIP: 0010:lock_release+0xa6/0x3e0 kernel/locking/lockdep.c:5885
Code: 25 08 b0 a0 92 41 83 bf ec 0a 00 00 00 0f 85 1e 02 00 00 49 81 3e 20 73 64 93 0f 84 11 02 00 00 48 c7 44 24 20 00 00 00 00 9c <8f> 44 24 20 48 8b 5c 24 20 fa 48 c7 c7 0d d0 9c 8d e8 64 d3 dc 09
RSP: 0018:ffffc90000007bf0 EFLAGS: 00000006
RAX: 0000000000000000 RBX: ffff88807aaec2e8 RCX: d38ac8c90ee09a00
RDX: 0000000000010000 RSI: ffffffff8be33960 RDI: ffffffff8be33920
RBP: ffff88807ae93d50 R08: ffff88807ae93c87 R09: 1ffff1100f5d2790
R10: dffffc0000000000 R11: ffffed100f5d2791 R12: ffff88807aaec340
R13: ffffffff899b17ef R14: ffff88807aaec300 R15: ffff88802e710000
FS:  0000555579939500(0000) GS:ffff888125c15000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000600 CR3: 00000000322d8000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 __raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline]
 _raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 advance_sched+0x99f/0xc90 net/sched/sch_taprio.c:986
 __run_hrtimer kernel/time/hrtimer.c:1761 [inline]
 __hrtimer_run_queues+0x529/0xc60 kernel/time/hrtimer.c:1825
 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1887
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline]
 __sysvec_apic_timer_interrupt+0x108/0x410 arch/x86/kernel/apic/apic.c:1056
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1050
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lockdep_unregister_key+0x2c5/0x310 kernel/locking/lockdep.c:6616
Code: 65 48 8b 05 4d 2d 03 11 48 3b 44 24 10 0f 84 26 fe ff ff e8 0d a4 dc 09 e8 38 a5 dc 09 41 f7 c7 00 02 00 00 74 bd fb 40 84 ed <75> bc eb cd 90 0f 0b 90 e9 19 ff ff ff 90 0f 0b 90 e9 2a ff ff ff
RSP: 0018:ffffc900033e7088 EFLAGS: 00000246
RAX: d38ac8c90ee09a00 RBX: ffff888078e40298 RCX: d38ac8c90ee09a00
RDX: ffffffff93647338 RSI: ffffffff8d9cd00d RDI: ffffffff8be33980
RBP: ffff888078e40200 R08: 0000000000000000 R09: ffffffff81aa8528
R10: dffffc0000000000 R11: fffffbfff1f47427 R12: 0000000000000000
R13: 0000000000001000 R14: 0000000000000001 R15: 0000000000000a06
 __qdisc_destroy+0x166/0x420 net/sched/sch_generic.c:1083
 taprio_attach+0x25a/0x380 net/sched/sch_taprio.c:2160
 qdisc_graft+0x1175/0x1590 net/sched/sch_api.c:1162
 __tc_modify_qdisc net/sched/sch_api.c:1756 [inline]
 tc_modify_qdisc+0x189b/0x20e0 net/sched/sch_api.c:1812
 rtnetlink_rcv_msg+0x77c/0xb70 net/core/rtnetlink.c:6955
 netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2552
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x82c/0x9e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:714 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:729
 ____sys_sendmsg+0x505/0x830 net/socket.c:2614
 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668
 __sys_sendmsg net/socket.c:2700 [inline]
 __do_sys_sendmsg net/socket.c:2705 [inline]
 __se_sys_sendmsg net/socket.c:2703 [inline]
 __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff22bf8eba9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffddb6a3918 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ff22c1d5fa0 RCX: 00007ff22bf8eba9
RDX: 0000000000000000 RSI: 00002000000007c0 RDI: 0000000000000004
RBP: 00007ff22c011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff22c1d5fa0 R14: 00007ff22c1d5fa0 R15: 0000000000000003
 </TASK>
rcu: rcu_preempt kthread starved for 10202 jiffies! g11881 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27160 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1798/0x4cc0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7058
 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2083
 rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2285
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 5916 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:csd_lock_wait kernel/smp.c:342 [inline]
RIP: 0010:smp_call_function_many_cond+0xd33/0x12d0 kernel/smp.c:877
Code: 45 8b 2c 24 44 89 ee 83 e6 01 31 ff e8 56 63 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 01 5f 0b 00 eb 38 f3 90 <42> 0f b6 04 2b 84 c0 75 11 41 f7 04 24 01 00 00 00 74 1e e8 e5 5e
RSP: 0000:ffffc900041ef720 EFLAGS: 00000293
RAX: ffffffff81b44ffb RBX: 1ffff110170c8341 RCX: ffff88802930da00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900041ef8a0 R08: ffffffff8fa3a137 R09: 1ffffffff1f47426
R10: dffffc0000000000 R11: fffffbfff1f47427 R12: ffff8880b8641a08
R13: dffffc0000000000 R14: ffff8880b873b1c0 R15: 0000000000000000
FS:  00007f2aed19b880(0000) GS:ffff888125d15000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005559d0697f28 CR3: 0000000077822000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1044
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:1361 [inline]
 flush_tlb_mm_range+0x6b1/0x12d0 arch/x86/mm/tlb.c:1451
 flush_tlb_page arch/x86/include/asm/tlbflush.h:324 [inline]
 ptep_clear_flush+0x120/0x170 mm/pgtable-generic.c:101
 wp_page_copy mm/memory.c:3618 [inline]
 do_wp_page+0x1bc2/0x5800 mm/memory.c:4013
 handle_pte_fault mm/memory.c:6068 [inline]
 __handle_mm_fault+0x1033/0x5440 mm/memory.c:6195
 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6364
 do_user_addr_fault+0xa81/0x1390 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f2aed7d4b69
Code: 10 48 81 f9 ff 03 00 00 76 28 48 8b 57 20 48 85 d2 74 1f 48 3b 7a 28 75 76 48 8b 4f 28 48 3b 79 20 75 6c 48 83 78 20 00 74 17 <48> 89 4a 28 48 89 51 20 48 83 c4 08 c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffe23e19420 EFLAGS: 00010202
RAX: 00007f2aed9111d0 RBX: 00000000000022e0 RCX: 00005559d0697f00
RDX: 00005559d0697f00 RSI: 00007f2aed9111d0 RDI: 00005559d0697f00
RBP: 00007f2aed910ac0 R08: 00000000000022e0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00005559d06957a0
R13: 00007f2aed910ac0 R14: 00000000000022e0 R15: 00007f2aed910ac0
 </TASK>

Crashes (604):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/09/11 11:16 upstream 7aac71907bde fdeaa69b .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/08/14 01:29 upstream 91325f31afc1 22ec1469 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tc_modify_qdisc
2025/08/12 00:39 upstream 8f5ae30d69d7 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in tc_modify_qdisc
2024/12/16 23:59 upstream 78d4f34e2115 f93b2b55 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tc_modify_qdisc
2024/11/11 17:30 upstream 2d5404caa8c7 97fe5517 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/15 14:05 upstream 8d3dea210042 d9b1cdd5 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/13 17:26 upstream c664e16bb1ba e66542d7 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/11/05 08:29 upstream aea6bf908d73 500bfdc4 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in tc_modify_qdisc
2022/06/18 02:45 upstream f0ec9c65a8d6 cb58b3b2 .config strace log report syz C ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tc_modify_qdisc
2023/07/18 16:18 upstream fdf0eaf11452 022df2bb .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/06/27 07:10 upstream c0a572d9d32f 4cd5bb25 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/23 01:56 net 359e54a93ab4 8d446f15 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/18 11:18 net 97dde8402633 578f7538 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/11 13:44 net 78e563f2d629 77b23aa1 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/11/26 10:08 net e2b706c69190 5b429f39 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/08/18 05:32 net e9bbd6016947 74b106b6 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/08/15 06:35 net 855067defa36 39990d51 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/08/04 04:26 net 3932f2272313 74621247 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/07/25 19:57 net 284779dbf4e9 6756545c .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/07/18 21:10 net 8fcd7c7b3a38 022df2bb .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/02/08 14:33 net-next 7bca2b2d5fcc ef44b750 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/01/09 09:09 net-next 31eae6d99587 f3558dbf .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/11/30 05:11 net-next 65ae975e97d5 68914665 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/13 10:03 net-next 0f37666d87d2 77b23aa1 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/07 01:36 net-next 06e6bc1b7aaf 6404acf9 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/05 10:02 net-next ffabe98cb576 a67b2c42 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/12/19 13:34 net-next 509afc745270 3ad490ea .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/08/23 12:17 net-next 978f41751aa0 b81ca3f6 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/08/21 15:56 net-next cb39c35783f2 d216d8a0 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/08/20 10:36 net-next 85c786340a65 d216d8a0 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/08/20 01:36 net-next 4025d3e73abd d216d8a0 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/08/18 01:41 net-next f54a2a132a9d 74b106b6 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/08/14 14:35 net-next f614a29d6ca6 39990d51 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/08/08 03:02 net-next 66244337512f b1b6ae3d .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2021/06/27 16:59 net-next-old ff8744b5eb11 9d2ab5df .config console log report syz C ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2022/05/26 15:54 linux-next b1d84fc09a96 3037caa9 .config strace log report syz C ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in tc_modify_qdisc
2020/08/16 23:54 upstream 4b6c093e21d3 424dd8e7 .config console log report syz C ci-upstream-kasan-gce
2020/07/28 18:12 net-old 181964e619b7 cb93dc6a .config console log report syz C ci-upstream-net-this-kasan-gce
2023/09/14 13:53 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe4469582053 0b6a67ac .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tc_modify_qdisc
2025/09/21 17:14 upstream f975f08c2e89 67c37560 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in tc_modify_qdisc
2025/09/15 09:30 upstream 79e8447ec662 e2beed91 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/09/02 05:23 upstream b320789d6883 807a3b61 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tc_modify_qdisc
2025/05/30 20:29 upstream f66bc387efbe 3d2f584d .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in tc_modify_qdisc
2025/03/19 14:29 upstream 81e4f8d68c66 8d0a2921 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in tc_modify_qdisc
2025/03/07 09:30 upstream f315296c92fd 831e3629 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in tc_modify_qdisc
2025/02/22 16:01 upstream ff202c5028a1 d34966d1 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in tc_modify_qdisc
2025/01/21 08:18 upstream 100ceb4817a2 6e87cfa2 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/01/12 22:09 upstream b62cef9a5c67 6dbc6a9b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tc_modify_qdisc
2024/12/22 05:44 upstream e84a3bf7f4aa d7f584ee .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tc_modify_qdisc
2024/02/05 08:57 upstream 54be6c6c5ae8 a67b2c42 .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/08/20 02:22 net 01792bc3e5bd 79512909 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/08/01 15:52 net 010510128873 40127d41 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/07/25 21:19 net 0d9cfc9b8cb1 fb8f743d .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/07/02 09:45 net 42fd432fe6d3 ffe4b334 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/06/19 12:55 net f82727adcf29 ed3e87f7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/09/23 03:05 net-next 78e87f9d5358 0ac7291c .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/11/29 23:38 net-next 65ae975e97d5 68914665 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/21 15:59 net-next 2f3bfa8e30b5 3af7dd65 .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/06/19 11:02 linux-next 6e5ab6fee68d ed3e87f7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in tc_modify_qdisc
2023/08/21 13:13 upstream 706a74159504 d216d8a0 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/08/10 19:56 upstream cacc6e22932f 4df3089c .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/07/26 00:57 upstream af2e19389c2c 6756545c .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/07/18 22:44 upstream 74f1456c4a5f 022df2bb .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/07/09 02:53 upstream 3a8a670eeeaa 668cb1fa .config console log report syz C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-mte INFO: rcu detected stall in tc_modify_qdisc
2024/04/06 15:58 net f99c5f563c17 ca620dd8 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/13 11:21 net 5b3fbd61b9d1 77b23aa1 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/09/24 19:23 upstream cec1e6e5d1ab 0abd0691 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in tc_modify_qdisc
2025/09/15 01:34 upstream 79e8447ec662 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/09/14 15:36 upstream f83a4f2a4d8c e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/07/13 14:25 upstream 3f31a806a62e 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tc_modify_qdisc
2025/07/04 08:21 upstream 17bbde2e1716 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in tc_modify_qdisc
2025/04/16 23:50 upstream c62f4b82d571 23b969b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/03/04 09:03 upstream 99fa936e8e4f c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tc_modify_qdisc
2024/12/29 08:01 upstream 059dd502b263 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/11/29 08:12 upstream 7af08b57bcb9 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/11/16 06:24 upstream f868cd251776 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/11/05 22:53 upstream 2e1b3cc9d7f7 3a465482 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tc_modify_qdisc
2024/04/06 03:17 upstream 480e035fc4c7 18ea8213 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/04/03 09:45 upstream fe46a7dd189e 7925100d .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in tc_modify_qdisc
2024/03/12 03:41 upstream 045395d86acd 6ee49f2e .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in tc_modify_qdisc
2024/02/23 23:49 upstream ffd2cb6b718e 8d446f15 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/22 15:32 upstream 39133352cbed 345111b5 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/20 13:40 upstream b401b621758e 3af7dd65 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/18 21:29 upstream c02197fc9076 578f7538 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/08/22 03:55 upstream f7757129e3de 6b415825 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2023/08/01 21:51 upstream 5d0c230f1de8 df07ffe8 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in tc_modify_qdisc
2023/07/28 15:40 upstream 57012c57536f 92476829 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in tc_modify_qdisc
2022/08/04 12:30 upstream 200e340f2196 1c9013ac .config console log report syz C ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in tc_modify_qdisc
2022/07/09 21:15 upstream e5524c2a1fc4 b5765a15 .config strace log report syz C ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tc_modify_qdisc
2022/07/05 13:05 upstream c1084b6c5620 bff65f44 .config strace log report syz C ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tc_modify_qdisc
2022/04/08 08:41 upstream 42e7a03d3bad c6ff3e05 .config console log report syz C ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tc_modify_qdisc
2025/06/19 18:58 upstream fb4d33ab452e ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: rcu detected stall in tc_modify_qdisc
2025/02/24 00:34 upstream 27102b38b8ca d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: rcu detected stall in tc_modify_qdisc
2025/09/13 05:44 net 201825fb4278 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/08/16 17:34 net 715c7a36d59f 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/08/02 00:41 net f8fded7536a9 40127d41 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/07/19 23:58 net 81e0db8e8398 7117feec .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/07/10 15:41 net dd831ac8221e 19d4829f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/04/26 14:20 net f73f05c6f711 c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/04/15 23:06 net 65d91192aa66 23b969b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/04/02 07:28 net f278b6d5bb46 c799dfdd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/03/30 10:02 net 2ea396448f26 d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/03/29 16:35 net 2ea396448f26 d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/01/26 18:26 net 15a901361ec3 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/01/19 07:05 net bc50835e83f6 f2cb035c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/01/10 19:39 net 8c7a6efc017e 67d7ec0a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/01/03 19:10 net ce21419b55d8 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/12/31 03:37 net ad5c318086e2 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/12/30 18:31 net a024e377efed d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/12/29 00:25 net a024e377efed d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/12/28 16:56 net a024e377efed d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/12/25 21:22 net b3a69c559899 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/12/25 06:00 net b3a69c559899 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/12/23 11:14 net 30b981796b94 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/12/12 01:03 net 3dd002f20098 ff949d25 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/11/26 01:54 net 9bb88c659673 a84878fc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/11/23 01:17 net fcc79e1714e8 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/11/12 23:18 net 20bbe5b80249 75bb1b32 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2025/07/22 16:00 net-next 1b02c861714b 1555463b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/12/30 00:37 net-next 9268abe611b0 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/12/26 00:46 net-next 9268abe611b0 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/12/09 03:44 net-next 7ea2745766d7 9ac0fdc6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/11/17 03:08 net-next 38f83a57aa8e cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/11/13 09:37 net-next a58f00ed24b8 62026c85 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/05/07 19:27 net-next 7824463aaea9 cb2dcc0e .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/02/20 14:34 net-next 74293ea1c4db 3af7dd65 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in tc_modify_qdisc
2024/11/29 12:46 linux-next f486c8aa16b8 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in tc_modify_qdisc
2020/11/16 09:31 net-next-old 0064c5c1b3bf 1bf9a662 .config console log report info ci-upstream-net-kasan-gce
2025/08/15 19:04 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8f5ae30d69d7 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tc_modify_qdisc
2020/07/13 08:27 linux-next d31958b30ea3 9ebcc5b1 .config console log report ci-upstream-linux-next-kasan-gce-root
* Struck through repros no longer work on HEAD.