rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=4054/1/0x4000000000000000 softirq=17761/17762 fqs=89
rcu: 	(detected by 1, t=10502 jiffies, g=12253, q=1645 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6956 Comm: syz.2.295 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:__lock_acquire+0x139d/0x3c40 kernel/locking/lockdep.c:5222
Code: 00 00 00 85 f6 0f 84 63 f6 ff ff e9 4b f6 ff ff 31 d2 4c 89 fe 4c 89 ef e8 e0 da ff ff 85 c0 0f 85 14 ff ff ff e9 ea fb ff ff <49> 8d 7f d8 e8 8a 47 ff ff 48 8d 78 40 48 89 c5 48 b8 00 00 00 00
RSP: 0018:ffffc90000007ab0 EFLAGS: 00000006
RAX: 0000000000000003 RBX: 0000000000000000 RCX: ffffffff816aae22
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000029849a6b
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff2dca198
R10: ffffffff96e50cc7 R11: 0000000000000006 R12: ffffed10058c1a6b
R13: ffff88802c60c880 R14: 0000000000000002 R15: ffff88802c60d450
FS:  00007f93563536c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ff0eff8 CR3: 0000000036a08000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
 debug_object_activate+0x149/0x4a0 lib/debugobjects.c:818
 debug_hrtimer_activate kernel/time/hrtimer.c:428 [inline]
 debug_activate kernel/time/hrtimer.c:469 [inline]
 enqueue_hrtimer+0x25/0x3c0 kernel/time/hrtimer.c:1076
 __run_hrtimer kernel/time/hrtimer.c:1756 [inline]
 __hrtimer_run_queues+0x903/0xae0 kernel/time/hrtimer.c:1803
 hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1865
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:unwind_done arch/x86/include/asm/unwind.h:50 [inline]
RIP: 0010:unwind_get_return_address+0x12/0xa0 arch/x86/kernel/unwind_orc.c:366
Code: 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 48 89 fa 55 <48> c1 ea 03 53 48 89 fb 0f b6 04 02 84 c0 74 04 3c 03 7e 59 8b 03
RSP: 0018:ffffc9000359e6b8 EFLAGS: 00000202
RAX: dffffc0000000000 RBX: ffffc9000359e6c8 RCX: 0000000000000000
RDX: ffffc9000359e6c8 RSI: ffffc9000359edf0 RDI: ffffc9000359e6c8
RBP: ffffc9000359e758 R08: ffffc9000359e6fc R09: ffffffff91053006
R10: ffffc9000359e6c8 R11: 0000000000012e2a R12: ffffffff8179abf0
R13: ffffc9000359e788 R14: 0000000000000000 R15: ffff88802c60c880
 arch_stack_walk+0xa7/0x100 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:257 [inline]
 __do_kmalloc_node mm/slub.c:4264 [inline]
 __kmalloc_node_track_caller_noprof+0x20f/0x430 mm/slub.c:4283
 kstrdup+0x3c/0x70 mm/util.c:64
 kstrdup_const+0x63/0x80 mm/util.c:87
 __kernfs_new_node+0x9c/0x890 fs/kernfs/dir.c:620
 kernfs_new_node+0x186/0x240 fs/kernfs/dir.c:700
 __kernfs_create_file+0x53/0x350 fs/kernfs/file.c:1034
 sysfs_add_file_mode_ns+0x1ff/0x3b0 fs/sysfs/file.c:307
 create_files fs/sysfs/group.c:76 [inline]
 internal_create_group+0x565/0xe50 fs/sysfs/group.c:180
 internal_create_groups+0x9d/0x150 fs/sysfs/group.c:220
 setup_gid_attrs drivers/infiniband/core/sysfs.c:1173 [inline]
 ib_setup_port_attrs+0x40b/0x5d0 drivers/infiniband/core/sysfs.c:1450
 add_one_compat_dev+0x4c5/0x720 drivers/infiniband/core/device.c:975
 add_compat_devs drivers/infiniband/core/device.c:1033 [inline]
 enable_device_and_get+0x338/0x3f0 drivers/infiniband/core/device.c:1344
 ib_register_device drivers/infiniband/core/device.c:1449 [inline]
 ib_register_device+0x880/0xdf0 drivers/infiniband/core/device.c:1395
 rxe_register_device+0x2fc/0x3d0 drivers/infiniband/sw/rxe/rxe_verbs.c:1524
 rxe_net_add+0xb4/0x110 drivers/infiniband/sw/rxe/rxe_net.c:542
 rxe_newlink+0x6f/0x190 drivers/infiniband/sw/rxe/rxe.c:197
 nldev_newlink+0x38e/0x660 drivers/infiniband/core/nldev.c:1795
 rdma_nl_rcv_msg+0x388/0x6e0 drivers/infiniband/core/netlink.c:195
 rdma_nl_rcv_skb.constprop.0.isra.0+0x2e6/0x450 drivers/infiniband/core/netlink.c:239
 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
 netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1347
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg net/socket.c:726 [inline]
 ____sys_sendmsg+0xaaf/0xc90 net/socket.c:2581
 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2635
 __sys_sendmsg+0x16e/0x220 net/socket.c:2667
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f935557e819
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:00007f9356353038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f9355735fa0 RCX: 00007f935557e819
RDX: 0000000000000810 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 00007f93555f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9355735fa0 R15: 00007ffd60db09a8
 </TASK>
rcu: rcu_preempt kthread starved for 10321 jiffies! g12253 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:28488 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0xe5a/0x5ae0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6848
 schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2247
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 7026 Comm: syz.0.316 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x458/0x1300 kernel/smp.c:884
Code: 0c 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 7a 11 0c 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 a4 0c 00 00 8b 43 08 31
RSP: 0018:ffffc90003f2f5b0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b8646ca0 RCX: ffffffff8181cf8c
RDX: ffff88805e3b2440 RSI: ffffffff8181cf66 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000005 R12: ffffed10170c8d95
R13: 0000000000000001 R14: ffff8880b8646ca8 R15: ffff8880b8740180
FS:  00007fa88ba2c6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa88ba2bf98 CR3: 0000000034a28000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1051
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2085 [inline]
 text_poke_bp_batch+0x22b/0x760 arch/x86/kernel/alternative.c:2295
 text_poke_bp+0xa3/0xd0 arch/x86/kernel/alternative.c:2522
 __static_call_transform+0x34d/0x770 arch/x86/kernel/static_call.c:111
 arch_static_call_transform+0x5d/0xb0 arch/x86/kernel/static_call.c:163
 __static_call_update+0xee/0x660 kernel/static_call_inline.c:147
 tracepoint_update_call kernel/tracepoint.c:317 [inline]
 tracepoint_add_func+0xa14/0xe50 kernel/tracepoint.c:358
 tracepoint_probe_register_prio_may_exist+0xbd/0x110 kernel/tracepoint.c:482
 tracepoint_probe_register_may_exist include/linux/tracepoint.h:51 [inline]
 bpf_probe_register+0x189/0x200 kernel/trace/bpf_trace.c:2384
 bpf_raw_tp_link_attach+0x245/0x540 kernel/bpf/syscall.c:3849
 bpf_raw_tracepoint_open kernel/bpf/syscall.c:3880 [inline]
 __sys_bpf+0x3a4/0x49a0 kernel/bpf/syscall.c:5695
 __do_sys_bpf kernel/bpf/syscall.c:5760 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5758 [inline]
 __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5758
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa88ab7e819
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:00007fa88ba2c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fa88ad36080 RCX: 00007fa88ab7e819
RDX: 0000000000000010 RSI: 00000000200007c0 RDI: 0000000000000011
RBP: 00007fa88abf175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa88ad36080 R15: 00007ffecb9c1f68
 </TASK>