syzbot


BUG: soft lockup in addrconf_rs_timer (2)

Status: fixed on 2023/07/04 09:17
Subsystems: net
[Documentation on labels]
Fix commit: cd2b8113c2e8 net/sched: fq_pie: ensure reasonable TCA_FQ_PIE_QUANTUM values
First crash: 273d, last: 252d
Similar bugs (12)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: soft lockup in addrconf_rs_timer (3) net syz 8 154d 218d 0/26 auto-obsoleted due to no activity on 2024/01/05 16:48
android-6-1 BUG: soft lockup in addrconf_rs_timer 1 122d 122d 0/2 auto-obsoleted due to no activity on 2024/01/27 13:54
android-5-10 BUG: soft lockup in addrconf_rs_timer 2 213d 231d 0/2 auto-obsoleted due to no activity on 2023/10/29 01:38
linux-6.1 BUG: soft lockup in addrconf_rs_timer C done 26 260d 272d 3/3 fixed on 2023/07/30 15:47
linux-4.19 BUG: soft lockup in addrconf_rs_timer syz error 24 394d 1076d 0/1 upstream: reported syz repro on 2021/03/19 06:05
linux-4.14 BUG: soft lockup in addrconf_rs_timer C error 133 432d 1634d 0/1 upstream: reported C repro on 2019/09/08 14:09
linux-5.15 BUG: soft lockup in addrconf_rs_timer C error 36 259d 272d 0/3 auto-obsoleted due to no activity on 2023/08/23 09:06
upstream BUG: soft lockup in addrconf_rs_timer net 18 1438d 1634d 0/26 auto-closed as invalid on 2020/07/20 22:25
android-5-15 BUG: soft lockup in addrconf_rs_timer 1 220d 220d 0/2 auto-obsoleted due to no activity on 2023/10/21 14:14
upstream INFO: rcu detected stall in addrconf_rs_timer (4) net C error error 121 850d 1304d 0/26 closed as invalid on 2022/02/08 10:39
upstream INFO: rcu detected stall in addrconf_rs_timer (5) kvm 4 674d 674d 0/26 auto-closed as invalid on 2022/06/24 22:41
linux-5.15 INFO: rcu detected stall in addrconf_rs_timer 1 80d 80d 0/3 upstream: reported on 2023/12/10 10:27

Sample crash report:
watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [swapper/0:0]
Modules linked in:
irq event stamp: 195107
hardirqs last  enabled at (195106): [<ffff80001242fde4>] __el1_irq arch/arm64/kernel/entry-common.c:476 [inline]
hardirqs last  enabled at (195106): [<ffff80001242fde4>] el1_interrupt+0x58/0x68 arch/arm64/kernel/entry-common.c:486
hardirqs last disabled at (195107): [<ffff80001242fdb0>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (195107): [<ffff80001242fdb0>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (189822): [<ffff800008020c1c>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (189822): [<ffff800008020c1c>] __do_softirq+0xac0/0xd54 kernel/softirq.c:600
softirqs last disabled at (189955): [<ffff80000802a660>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.4.0-rc3-syzkaller-geb0f1697d729 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __list_del_entry_valid+0x88/0x158 lib/list_debug.c:59
lr : __list_del_entry include/linux/list.h:134 [inline]
lr : list_move_tail include/linux/list.h:229 [inline]
lr : fq_pie_qdisc_dequeue+0x288/0x8ac net/sched/sch_fq_pie.c:248
sp : ffff8000080071e0
x29: ffff8000080071e0 x28: ffff0000db072030 x27: ffff0000cbb982e8
x26: ffff0000cbb982f0 x25: dfff800000000000 x24: ffff0000cbb982e0
x23: ffff0000db072020 x22: dfff800000000000 x21: ffff0000cbb982e0
x20: ffff0000cbb982e0 x19: ffff0000db072030 x18: ffff800008006e60
x17: 0000000000000000 x16: ffff80000850b36c x15: 0000000000000302
x14: 0000000000000100 x13: 0000000000000000 x12: 0000000000000001
x11: 0000000000000302 x10: 0000000000000100 x9 : ffff0000cbb98328
x8 : 0000000000000000 x7 : ffff80000841c468 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000
x2 : dead000000000122 x1 : 0000000000000000 x0 : ffff0000db072038
Call trace:
 __list_del_entry_valid+0x88/0x158 lib/list_debug.c:59
 __list_del_entry include/linux/list.h:134 [inline]
 list_move_tail include/linux/list.h:229 [inline]
 fq_pie_qdisc_dequeue+0x288/0x8ac net/sched/sch_fq_pie.c:248
 dequeue_skb net/sched/sch_generic.c:292 [inline]
 qdisc_restart net/sched/sch_generic.c:397 [inline]
 __qdisc_run+0x1fc/0x231c net/sched/sch_generic.c:415
 __dev_xmit_skb net/core/dev.c:3868 [inline]
 __dev_queue_xmit+0xc80/0x3318 net/core/dev.c:4210
 dev_queue_xmit include/linux/netdevice.h:3085 [inline]
 neigh_connected_output+0x2f8/0x38c net/core/neighbour.c:1581
 neigh_output include/net/neighbour.h:544 [inline]
 ip6_finish_output2+0xd60/0x1a1c net/ipv6/ip6_output.c:134
 __ip6_finish_output net/ipv6/ip6_output.c:195 [inline]
 ip6_finish_output+0x538/0x8c8 net/ipv6/ip6_output.c:206
 NF_HOOK_COND include/linux/netfilter.h:292 [inline]
 ip6_output+0x270/0x594 net/ipv6/ip6_output.c:227
 dst_output include/net/dst.h:458 [inline]
 NF_HOOK include/linux/netfilter.h:303 [inline]
 ndisc_send_skb+0xc30/0x1790 net/ipv6/ndisc.c:508
 ndisc_send_rs+0x47c/0x5d4 net/ipv6/ndisc.c:718
 addrconf_rs_timer+0x300/0x58c net/ipv6/addrconf.c:3936
 call_timer_fn+0x19c/0x8cc kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x55c/0x734 kernel/time/timer.c:2022
 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:2035
 __do_softirq+0x2d0/0xd54 kernel/softirq.c:571
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:882
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:650
 irq_exit_rcu+0x14/0x84 kernel/softirq.c:662
 __el1_irq arch/arm64/kernel/entry-common.c:472 [inline]
 el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:486
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491
 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:587
 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:33 [inline]
 arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:55
 cpuidle_idle_call kernel/sched/idle.c:170 [inline]
 do_idle+0x1f0/0x4e8 kernel/sched/idle.c:282
 cpu_startup_entry+0x24/0x28 kernel/sched/idle.c:379
 rest_init+0x2dc/0x2f4 init/main.c:735
 start_kernel+0x0/0x55c init/main.c:834
 start_kernel+0x3f0/0x55c init/main.c:1088
 __primary_switched+0xb8/0xc0 arch/arm64/kernel/head.S:523

Crashes (51):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/06/06 15:49 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/04 22:58 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/04 19:30 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/04 16:30 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/03 15:08 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/03 12:01 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/02 16:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/02 10:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/02 00:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/01 09:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 babc4389 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/04 19:55 upstream 6f64a5ebe1dc a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root BUG: soft lockup in addrconf_rs_timer
2023/06/03 20:30 upstream 51f269a6ecc7 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root BUG: soft lockup in addrconf_rs_timer
2023/06/03 17:10 upstream 51f269a6ecc7 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce BUG: soft lockup in addrconf_rs_timer
2023/06/03 11:02 upstream 4ecd704a4c51 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root BUG: soft lockup in addrconf_rs_timer
2023/06/05 12:52 upstream 9561de3a55be a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 BUG: soft lockup in addrconf_rs_timer
2023/06/04 19:22 upstream 6f64a5ebe1dc a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 BUG: soft lockup in addrconf_rs_timer
2023/06/03 11:26 upstream 4ecd704a4c51 a4ae4f42 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 BUG: soft lockup in addrconf_rs_timer
2023/06/21 15:48 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 177239177378 09ffe269 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/21 04:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 177239177378 09ffe269 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/19 16:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 177239177378 d521bc56 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/19 04:57 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 177239177378 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/19 03:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 177239177378 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/18 12:04 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 177239177378 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/17 09:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 177239177378 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/16 22:27 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 177239177378 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/16 07:48 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9ff7918643c1 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/16 06:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9ff7918643c1 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/15 17:09 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci f86b85033b8c 757d26ed .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/15 14:53 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci f86b85033b8c 757d26ed .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/15 00:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci f86b85033b8c 76decb82 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/14 22:42 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci f86b85033b8c 76decb82 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/14 20:32 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci f86b85033b8c d2ee9228 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/13 16:09 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d8b213732169 749afb64 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/12 19:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d8b213732169 749afb64 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/12 10:58 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d8b213732169 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/10 04:17 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d8b213732169 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/08 23:33 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 908f31f2a05b 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/08 11:55 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 3bb1a3e1674b 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/08 09:51 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 3bb1a3e1674b 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/07 18:48 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7579d8f9bf90 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/06 23:35 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci cd6bd67ad7ab a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/06 20:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci cd6bd67ad7ab a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/06 19:17 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci cd6bd67ad7ab a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/06 09:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/05 16:52 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/05 10:27 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/03 11:12 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/01 17:58 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/06/01 04:59 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 babc4389 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
2023/05/31 23:27 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 e2a77acd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in addrconf_rs_timer
* Struck through repros no longer work on HEAD.