rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6441/2:b.el
rcu: 	(detected by 1, t=10502 jiffies, g=12417, q=3636 ncpus=2)
task:syz.1.128       state:R  running task     stack:24992 pid:6441  tgid:6434  ppid:5836   flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1850/0x4c30 kernel/sched/core.c:6756
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078
 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:arch_static_branch arch/x86/include/asm/jump_label.h:36 [inline]
RIP: 0010:trace_mm_filemap_map_pages include/trace/events/filemap.h:105 [inline]
RIP: 0010:filemap_map_pages+0x1512/0x1900 mm/filemap.c:3690
Code: be 6f 03 00 00 48 c7 c2 c0 ab 13 8c e8 37 22 a2 ff 48 c7 c7 e0 7a 93 8e 4c 89 fe e8 78 e2 a1 ff e8 e3 fc ac ff 0f 1f 44 00 00 <e8> 59 80 c6 ff 65 8b 1d 2e e2 2a 7e bf 07 00 00 00 89 de e8 86 84
RSP: 0018:ffffc9001dd271c0 EFLAGS: 00000283
RAX: 0000000000000002 RBX: 0000000000000001 RCX: ffffc9001dd27103
RDX: 0000000000000003 RSI: ffffffff8c0aaa40 RDI: ffffffff8c5fb020
RBP: ffffc9001dd273d0 R08: ffffffff90197df7 R09: 1ffffffff2032fbe
R10: dffffc0000000000 R11: fffffbfff2032fbf R12: 0000000000000000
R13: 0000000000000007 R14: ffff88802888b6b0 R15: ffffffff81d8e0f1
 do_fault_around mm/memory.c:5280 [inline]
 do_read_fault mm/memory.c:5313 [inline]
 do_fault mm/memory.c:5456 [inline]
 do_pte_missing mm/memory.c:3979 [inline]
 handle_pte_fault+0x388a/0x5ed0 mm/memory.c:5801
 __handle_mm_fault mm/memory.c:5944 [inline]
 handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6112
 faultin_page mm/gup.c:1196 [inline]
 __get_user_pages+0x1c82/0x49e0 mm/gup.c:1494
 populate_vma_page_range+0x264/0x330 mm/gup.c:1932
 __mm_populate+0x27a/0x460 mm/gup.c:2035
 mm_populate include/linux/mm.h:3396 [inline]
 vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:585
 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: 0033:0x7fee64d85d29
RSP: 002b:00007fee65af9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fee64f75fa0 RCX: 00007fee64d85d29
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007fee64e01aa8 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fee64f75fa0 R15: 00007ffdb68766b8
 </TASK>