rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P15985/1:b..l P6322/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=172681, q=293 ncpus=2)
task:kworker/u8:16   state:R  running task     stack:19984 pid:6322  tgid:6322  ppid:2      flags:0x00004000
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0x1800/0x4a60 kernel/sched/core.c:6529
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:843 [inline]
RIP: 0010:batadv_iv_ogm_schedule+0xa0d/0x10a0 net/batman-adv/bat_iv_ogm.c:868
Code: 30 48 c1 e8 03 48 89 44 24 60 49 c7 c7 00 be 33 95 49 8d 5e 78 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 48 89 df e8 f9 9c 7e f6 48 8b 1b 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc900043ff9c0 EFLAGS: 00000246
RAX: 1ffff11009fb690f RBX: ffff88804fdb4878 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000001
RBP: ffffc900043ffaf8 R08: ffffffff8b7c34ac R09: 1ffff1100c333404
R10: dffffc0000000000 R11: ffffed100c333405 R12: ffff888023f43078
R13: ffff888023f43000 R14: ffff88804fdb4800 R15: ffffffff9533be00
 batadv_iv_send_outstanding_bat_ogm_packet+0x6fe/0x810 net/batman-adv/bat_iv_ogm.c:1712
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
task:udevd           state:R  running task     stack:24816 pid:15985 tgid:15985 ppid:4673   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0x1800/0x4a60 kernel/sched/core.c:6529
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5763
Code: 2b 00 74 08 4c 89 f7 e8 0a 01 8b 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc90002dcf200 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920005b9e4c RCX: 505001ba2b6e3800
RDX: dffffc0000000000 RSI: ffffffff8c0ae6e0 RDI: ffffffff8c606fc0
RBP: ffffc90002dcf348 R08: ffffffff93734847 R09: 1ffffffff26e6908
R10: dffffc0000000000 R11: fffffbfff26e6909 R12: 1ffff920005b9e48
R13: dffffc0000000000 R14: ffffc90002dcf260 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
 rcu_read_lock include/linux/rcupdate.h:838 [inline]
 filemap_get_entry+0x144/0x3b0 mm/filemap.c:1837
 shmem_get_partial_folio+0xa0/0x320 mm/shmem.c:958
 shmem_undo_range+0xbf7/0x1df0 mm/shmem.c:1052
 shmem_truncate_range mm/shmem.c:1132 [inline]
 shmem_evict_inode+0x29b/0xa80 mm/shmem.c:1260
 evict+0x534/0x950 fs/inode.c:704
 __dentry_kill+0x20d/0x630 fs/dcache.c:610
 dput+0x19f/0x2b0 fs/dcache.c:852
 do_renameat2+0xda1/0x13f0 fs/namei.c:5125
 __do_sys_rename fs/namei.c:5170 [inline]
 __se_sys_rename fs/namei.c:5168 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:5168
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f252ee9a93b
RSP: 002b:00007ffef71de788 EFLAGS: 00000206 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f252ee9a93b
RDX: 00005607381b4684 RSI: 00007ffef71de7a8 RDI: 00007ffef71deba8
RBP: 00005602583c7e10 R08: 0000000000000006 R09: 1a3b7402ffc47073
R10: 000000000000010f R11: 0000000000000206 R12: 00005602583c4120
R13: 00007ffef71de7a8 R14: 00007ffef71deba8 R15: 0000560240340ec8
 </TASK>