Re: [syzbot] INFO: rcu detected stall in batadv_nc_worker (3)

Re: [syzbot] INFO: rcu detected stall in batadv_nc_worker (3)

[syzbot]

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
INFO: rcu detected stall in corrupted

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4077 } 2636 jiffies s: 2521 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):


Tested on:

commit:         55be6084 Merge tag 'timers-core-2022-10-05' of git://g..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=12ab7aaa880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=df75278aabf0681a
dashboard link: https://syzkaller.appspot.com/bug?extid=69904c3b4a09e8fa2e1b
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=14854b8a880000

Re: [syzbot] INFO: rcu detected stall in batadv_nc_worker (3)

[syzbot]

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
INFO: rcu detected stall in corrupted

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4085 } 2680 jiffies s: 2529 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):


Tested on:

commit:         55be6084 Merge tag 'timers-core-2022-10-05' of git://g..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=11c5acba880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=df75278aabf0681a
dashboard link: https://syzkaller.appspot.com/bug?extid=69904c3b4a09e8fa2e1b
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=15c2fd8a880000

Re: [syzbot] INFO: rcu detected stall in batadv_nc_worker (3)

[syzbot]

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
INFO: rcu detected stall in corrupted

rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10500 ticks this GP) idle=1a74/1/0x4000000000000000 softirq=7901/7901 fqs=0
	(t=10500 jiffies g=7625 q=3882 ncpus=2)
rcu: rcu_preempt kthread starved for 10500 jiffies! g7625 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:29320 pid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5178 [inline]
 __schedule+0xadf/0x5270 kernel/sched/core.c:6490
 schedule+0xda/0x1b0 kernel/sched/core.c:6566
 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1935
 rcu_gp_fqs_loop+0x190/0x910 kernel/rcu/tree.c:1658
 rcu_gp_kthread+0x236/0x360 kernel/rcu/tree.c:1857
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:write_comp_data+0x7/0x90 kernel/kcov.c:223
Code: ff 00 75 10 65 48 8b 04 25 80 6f 02 00 48 8b 80 b0 15 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 65 8b 05 89 29 87 7e <49> 89 f1 89 c6 49 89 d2 81 e6 00 01 00 00 49 89 f8 65 48 8b 14 25
RSP: 0018:ffffc90000157b30 EFLAGS: 00000246
RAX: 0000000000000101 RBX: ffff888066e69060 RCX: ffffffff878c48ee
RDX: 0000000000000000 RSI: 0019999999999998 RDI: 0000000000000007
RBP: 0000000225c17d04 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000b1b78399 R12: 00000015798ee228
R13: ffff8880690a7b00 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f801f5b0000 CR3: 0000000020ffc000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 pie_calculate_probability+0x1ee/0x7c0 net/sched/sch_pie.c:340
 fq_pie_timer+0x1b3/0x360 net/sched/sch_fq_pie.c:382
 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1519 [inline]
 __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790
 __run_timers kernel/time/timer.c:1768 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
 __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571
 run_ksoftirqd kernel/softirq.c:934 [inline]
 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:926
 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
CPU: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:write_comp_data+0x7/0x90 kernel/kcov.c:223
Code: ff 00 75 10 65 48 8b 04 25 80 6f 02 00 48 8b 80 b0 15 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 65 8b 05 89 29 87 7e <49> 89 f1 89 c6 49 89 d2 81 e6 00 01 00 00 49 89 f8 65 48 8b 14 25
RSP: 0018:ffffc90000157b30 EFLAGS: 00000246
RAX: 0000000000000101 RBX: ffff888066e69060 RCX: ffffffff878c48ee
RDX: 0000000000000000 RSI: 0019999999999998 RDI: 0000000000000007
RBP: 0000000225c17d04 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000b1b78399 R12: 00000015798ee228
R13: ffff8880690a7b00 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f801f5b0000 CR3: 0000000020ffc000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 pie_calculate_probability+0x1ee/0x7c0 net/sched/sch_pie.c:340
 fq_pie_timer+0x1b3/0x360 net/sched/sch_fq_pie.c:382
 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1519 [inline]
 __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790
 __run_timers kernel/time/timer.c:1768 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
 __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571
 run_ksoftirqd kernel/softirq.c:934 [inline]
 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:926
 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 16 at net/sched/sch_fq_pie.c:390 fq_pie_timer+0x2ba/0x360 net/sched/sch_fq_pie.c:390
Modules linked in:
CPU: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:fq_pie_timer+0x2ba/0x360 net/sched/sch_fq_pie.c:390
Code: 48 c1 ea 03 80 3c 02 00 0f 85 a9 00 00 00 48 8b 35 eb 5f 34 04 48 89 ef 48 01 de e8 e0 70 de f9 e9 62 ff ff ff e8 16 b8 ee f9 <0f> 0b eb a9 48 89 cf e8 0a 1f 3c fa e9 3d fe ff ff e8 00 1f 3c fa
RSP: 0018:ffffc90000157bb8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffffffffffb7 RCX: 0000000000000100
RDX: ffff888011a7d880 RSI: ffffffff878c922a RDI: 0000000000000007
RBP: ffff8880690a7b50 R08: 0000000000000007 R09: 0000000000000000
R10: ffffffffffffffb7 R11: 00000000b1b78399 R12: dffffc0000000000
R13: 0000000000000007 R14: 0000000000000400 R15: ffff8880690a7b00
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f801f5b0000 CR3: 000000000bc8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1519 [inline]
 __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790
 __run_timers kernel/time/timer.c:1768 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
 __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571
 run_ksoftirqd kernel/softirq.c:934 [inline]
 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:926
 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>


Tested on:

commit:         55be6084 Merge tag 'timers-core-2022-10-05' of git://g..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=14d888aa880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=df75278aabf0681a
dashboard link: https://syzkaller.appspot.com/bug?extid=69904c3b4a09e8fa2e1b
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1503ca3c880000

Re: [syzbot] INFO: rcu detected stall in batadv_nc_worker (3)

[syzbot]

syzbot has bisected this issue to:

commit f8a4018c826fde6137425bbdbe524d5973feb173
Author: Mark Brown <broonie@kernel.org>
Date:   Thu Jun 2 13:53:04 2022 +0000

    ASoC: tas2770: Use modern ASoC DAI format terminology

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=164d4978880000
start commit:   55be6084c8e0 Merge tag 'timers-core-2022-10-05' of git://g..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=154d4978880000
console output: https://syzkaller.appspot.com/x/log.txt?x=114d4978880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=df75278aabf0681a
dashboard link: https://syzkaller.appspot.com/bug?extid=69904c3b4a09e8fa2e1b
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16e2e478880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=149ca17c880000

Reported-by: syzbot+69904c3b4a09e8fa2e1b@syzkaller.appspotmail.com
Fixes: f8a4018c826f ("ASoC: tas2770: Use modern ASoC DAI format terminology")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

Re: [syzbot] INFO: rcu detected stall in batadv_nc_worker (3)

[syzbot]

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
INFO: rcu detected stall in corrupted

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4084 } 2677 jiffies s: 2541 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):


Tested on:

commit:         55be6084 Merge tag 'timers-core-2022-10-05' of git://g..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=12c5ccb4880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=df75278aabf0681a
dashboard link: https://syzkaller.appspot.com/bug?extid=69904c3b4a09e8fa2e1b
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=131f08aa880000

Re: [syzbot] INFO: rcu detected stall in batadv_nc_worker (3)

[syzbot]

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
INFO: rcu detected stall in corrupted

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4079 } 2683 jiffies s: 2553 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):


Tested on:

commit:         55be6084 Merge tag 'timers-core-2022-10-05' of git://g..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=123f4ad6880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=df75278aabf0681a
dashboard link: https://syzkaller.appspot.com/bug?extid=69904c3b4a09e8fa2e1b
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=15e1f4e6880000

Re: [syzbot] INFO: rcu detected stall in batadv_nc_worker (3)

[syzbot]

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
INFO: rcu detected stall in corrupted

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4088 } 2636 jiffies s: 2445 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):


Tested on:

commit:         55be6084 Merge tag 'timers-core-2022-10-05' of git://g..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=12b0a464880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=df75278aabf0681a
dashboard link: https://syzkaller.appspot.com/bug?extid=69904c3b4a09e8fa2e1b
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=136f787c880000

Re: [syzbot] INFO: rcu detected stall in batadv_nc_worker (3)

[syzbot]

syzbot has found a reproducer for the following issue on:

HEAD commit:    55be6084c8e0 Merge tag 'timers-core-2022-10-05' of git://g..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1623ec72880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=df75278aabf0681a
dashboard link: https://syzkaller.appspot.com/bug?extid=69904c3b4a09e8fa2e1b
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16e2e478880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=149ca17c880000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/9d967e5d91fa/disk-55be6084.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/9a8cffcbc089/vmlinux-55be6084.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+69904c3b4a09e8fa2e1b@syzkaller.appspotmail.com

rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (1 GPs behind) idle=d61c/1/0x4000000000000000 softirq=5548/5551 fqs=5
	(t=10501 jiffies g=4985 q=1169 ncpus=2)
rcu: rcu_preempt kthread starved for 10488 jiffies! g4985 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:28728 pid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5178 [inline]
 __schedule+0xadf/0x5270 kernel/sched/core.c:6490
 schedule+0xda/0x1b0 kernel/sched/core.c:6566
 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1935
 rcu_gp_fqs_loop+0x190/0x910 kernel/rcu/tree.c:1658
 rcu_gp_kthread+0x236/0x360 kernel/rcu/tree.c:1857
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 47 Comm: kworker/u4:3 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Workqueue: bat_events batadv_nc_worker
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x7/0x60 kernel/kcov.c:200
Code: 4c 00 5d be 03 00 00 00 e9 d6 43 84 02 66 0f 1f 44 00 00 48 8b be a8 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 65 8b 05 f9 24 87 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 80 6f 02 00 a9
RSP: 0018:ffffc900001f0c48 EFLAGS: 00000286
RAX: 0000000000000101 RBX: ffff88806b299c90 RCX: ffffffff878c4a1d
RDX: ffff888017893b00 RSI: 0000000000000100 RDI: 0000000000000007
RBP: fffffff0a3da8872 R08: 0000000000000007 R09: 0000000000000000
R10: fffffff0a3da8872 R11: 000000000008c07d R12: fffffff0a3da8872
R13: ffff888018f5ab00 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000026ef0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 pie_calculate_probability+0x32b/0x7c0 net/sched/sch_pie.c:387
 fq_pie_timer+0x170/0x2a0 net/sched/sch_fq_pie.c:380
 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1519 [inline]
 __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790
 __run_timers kernel/time/timer.c:1768 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
 __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:rcu_preempt_read_exit kernel/rcu/tree_plugin.h:382 [inline]
RIP: 0010:__rcu_read_unlock+0x2d/0x570 kernel/rcu/tree_plugin.h:421
Code: 55 41 54 55 65 48 8b 2c 25 80 6f 02 00 53 48 8d bd 3c 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 24 02 00 00 65
RSP: 0018:ffffc90000b87c58 EFLAGS: 00000a07
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff891cd30e RDI: ffff888017893f3c
RBP: ffff888017893b00 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000345
 rcu_read_unlock include/linux/rcupdate.h:770 [inline]
 batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
 batadv_nc_worker+0x853/0xfa0 net/batman-adv/network-coding.c:719
 process_one_work+0x991/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.452 msecs
CPU: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:pie_calculate_probability+0x1a5/0x7c0 net/sched/sch_pie.c:354
Code: 20 48 b8 82 be e0 12 01 00 00 00 48 89 fa 48 c1 ea 03 4c 0f af e0 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 e4 05 00 00 <4c> 89 ea 4c 8b 7b 20 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80
RSP: 0018:ffffc90000157b40 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffff88806b81acc0 RCX: 0000000000000100
RDX: 1ffff1100d70359c RSI: ffffffff878c480f RDI: ffff88806b81ace0
RBP: 0000000225c17d04 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000008c07d R12: 00000015798ee228
R13: ffff888017498300 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffddaac90a8 CR3: 0000000011aec000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 fq_pie_timer+0x170/0x2a0 net/sched/sch_fq_pie.c:380
 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1519 [inline]
 __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790
 __run_timers kernel/time/timer.c:1768 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
 __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571
 run_ksoftirqd kernel/softirq.c:934 [inline]
 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:926
 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>