rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P22598/1:b..l P22595/1:b..l
rcu: (detected by 0, t=10504 jiffies, g=84713, q=363 ncpus=2)
task:syz-executor.4 state:R running task stack:23280 pid:22595 tgid:22589 ppid:19667 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7068
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:5758
Code: 2b 00 74 08 4c 89 f7 e8 5a 2d 88 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:ffffc9000252e860 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920004a5d18 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcaca20 RDI: ffffffff8c1f8260
RBP: ffffc9000252e9a8 R08: ffffffff92f35507 R09: 1ffffffff25e6aa0
R10: dffffc0000000000 R11: fffffbfff25e6aa1 R12: 1ffff920004a5d14
R13: dffffc0000000000 R14: ffffc9000252e8c0 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
rcu_read_lock include/linux/rcupdate.h:781 [inline]
__pte_offset_map+0x9e/0x380 mm/pgtable-generic.c:285
pte_offset_map_nolock+0xad/0x1f0 mm/pgtable-generic.c:312
handle_pte_fault mm/memory.c:5286 [inline]
__handle_mm_fault+0xff4/0x7250 mm/memory.c:5441
handle_mm_fault+0x3c2/0x8a0 mm/memory.c:5606
faultin_page mm/gup.c:958 [inline]
__get_user_pages+0x727/0x1630 mm/gup.c:1257
__get_user_pages_locked mm/gup.c:1525 [inline]
__gup_longterm_locked+0x2095/0x2b30 mm/gup.c:2223
internal_get_user_pages_fast+0x2707/0x2e60 mm/gup.c:3227
pin_user_pages_fast+0xcc/0x160 mm/gup.c:3333
iov_iter_extract_user_pages lib/iov_iter.c:1583 [inline]
iov_iter_extract_pages+0x3db/0x720 lib/iov_iter.c:1646
extract_user_to_sg lib/scatterlist.c:1125 [inline]
extract_iter_to_sg+0x890/0x22b0 lib/scatterlist.c:1351
hash_sendmsg+0x513/0x1110 crypto/algif_hash.c:119
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
sock_write_iter+0x2dd/0x400 net/socket.c:1160
call_write_iter include/linux/fs.h:2110 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa84/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f983687dd69
RSP: 002b:00007f98375770c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f98369abf80 RCX: 00007f983687dd69
RDX: 00000000fffffdef RSI: 0000000020000040 RDI: 000000000000000b
RBP: 00007f98368ca49e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f98369abf80 R15: 00007ffc1aaf2448
task:syz-executor.3 state:R running task stack:24664 pid:22598 tgid:22598 ppid:21562 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7068
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:5758
Code: 2b 00 74 08 4c 89 f7 e8 5a 2d 88 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: 0000:ffffc9000303fbc0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000607f84 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcaca20 RDI: ffffffff8c1f8260
RBP: ffffc9000303fd08 R08: ffffffff92f3559f R09: 1ffffffff25e6ab3
R10: dffffc0000000000 R11: fffffbfff25e6ab4 R12: 1ffff92000607f80
R13: dffffc0000000000 R14: ffffc9000303fc20 R15: 0000000000000246
down_read_trylock+0x24f/0x3c0 kernel/locking/rwsem.c:1568
vma_start_read include/linux/mm.h:677 [inline]
lock_vma_under_rcu+0x2f9/0x730 mm/memory.c:5762
do_user_addr_fault arch/x86/mm/fault.c:1323 [inline]
handle_page_fault arch/x86/mm/fault.c:1474 [inline]
exc_page_fault+0x17b/0x8a0 arch/x86/mm/fault.c:1532
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fa13ec2c7e1
RSP: 002b:00007ffdb15c4e80 EFLAGS: 00010246
RAX: 0000000020000084 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000555577e74360
RBP: 00007ffdb15c4f78 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000004
R13: 00007fa13edabf8c R14: 00007fa13edabf80 R15: 0000000000000032
rcu: rcu_preempt kthread starved for 10502 jiffies! g84713 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:24952 pid:16 tgid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2582
rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:1663
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1862
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 22603 Comm: syz-executor.0 Not tainted 6.9.0-rc7-syzkaller-00132-g1164057b3c00 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline]
RIP: 0010:smp_call_function_many_cond+0x1894/0x2a00 kernel/smp.c:855
Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 15 db 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 c0 d6 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 a4 d6
RSP: 0018:ffffc900020cf3e0 EFLAGS: 00000246
RAX: ffffffff818a31dc RBX: 1ffff110172a8869 RCX: 0000000000040000
RDX: ffffc90014c96000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc900020cf5e0 R08: ffffffff818a31ab R09: 1ffffffff25e6aa0
R10: dffffc0000000000 R11: fffffbfff25e6aa1 R12: dffffc0000000000
R13: ffff8880b9544348 R14: ffff8880b943f7c0 R15: 0000000000000001
FS: 00007febe682e6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007febe5ade1b0 CR3: 000000005d8d2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2086 [inline]
text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2296
text_poke_bp+0xb0/0x100 arch/x86/kernel/alternative.c:2523
__static_call_transform+0x51a/0x810 arch/x86/kernel/static_call.c:111
arch_static_call_transform+0x141/0x380 arch/x86/kernel/static_call.c:163
__static_call_update+0xd8/0x5e0 kernel/static_call_inline.c:147
tracepoint_update_call kernel/tracepoint.c:317 [inline]
tracepoint_add_func+0x918/0x9e0 kernel/tracepoint.c:358
tracepoint_probe_register_prio_may_exist+0x122/0x190 kernel/tracepoint.c:482
bpf_raw_tp_link_attach+0x470/0x6d0 kernel/bpf/syscall.c:3865
bpf_raw_tracepoint_open+0x19d/0x210 kernel/bpf/syscall.c:3892
__sys_bpf+0x3c0/0x810 kernel/bpf/syscall.c:5702
__do_sys_bpf kernel/bpf/syscall.c:5767 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5765 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5765
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7febe5a7dd69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007febe682e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007febe5babf80 RCX: 00007febe5a7dd69
RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000011
RBP: 00007febe5aca49e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007febe5babf80 R15: 00007ffc5516c228