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INFO: rcu detected stall in sys_move_pages (3)

Status: auto-obsoleted due to no activity on 2025/05/22 21:59
Subsystems: mm
[Documentation on labels]
First crash: 136d, last: 136d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 INFO: rcu detected stall in sys_move_pages 2 381d 381d 0/3 auto-obsoleted due to no activity on 2024/09/30 09:17
upstream INFO: rcu detected stall in sys_move_pages (2) mm 6 338d 389d 0/29 auto-obsoleted due to no activity on 2024/11/02 15:42
upstream INFO: rcu detected stall in sys_move_pages mm 4 1337d 1352d 0/29 auto-closed as invalid on 2022/02/07 20:19

Sample crash report:
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P7198/1:b..l
rcu: 	(detected by 1, t=10503 jiffies, g=23173, q=442 ncpus=2)
task:syz.1.334       state:R  running task     stack:25680 pid:7198  tgid:7195  ppid:5830   task_flags:0x400040 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5378 [inline]
 __schedule+0xf43/0x5890 kernel/sched/core.c:6765
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7087
 irqentry_exit+0x36/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire.part.0+0x155/0x380 kernel/locking/lockdep.c:5816
Code: b8 ff ff ff ff 65 0f c1 05 f0 db 6b 7e 83 f8 01 0f 85 d0 01 00 00 9c 58 f6 c4 02 0f 85 e5 01 00 00 48 85 ed 0f 85 b6 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7
RSP: 0018:ffffc9000bb4f900 EFLAGS: 00000206
RAX: 0000000000000046 RBX: 1ffff92001769f21 RCX: 000000008c33b5bb
RDX: 0000000000000001 RSI: ffffffff8b6cefa0 RDI: ffffffff8bd345c0
RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff2dd7998
R10: ffffffff96ebccc7 R11: 0000000000000001 R12: 0000000000000000
R13: ffffffff8e1bcc80 R14: 0000000000000000 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 mtree_load+0xfa/0xa40 lib/maple_tree.c:6279
 vma_lookup include/linux/mm.h:3452 [inline]
 do_pages_stat_array mm/migrate.c:2433 [inline]
 do_pages_stat+0x48f/0x800 mm/migrate.c:2501
 kernel_move_pages+0x107d/0x1560 mm/migrate.c:2582
 __do_sys_move_pages mm/migrate.c:2593 [inline]
 __se_sys_move_pages mm/migrate.c:2588 [inline]
 __x64_sys_move_pages+0xe0/0x1c0 mm/migrate.c:2588
 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: 0033:0x7f2b9018d169
RSP: 002b:00007f2b91012038 EFLAGS: 00000246 ORIG_RAX: 0000000000000117
RAX: ffffffffffffffda RBX: 00007f2b903a6080 RCX: 00007f2b9018d169
RDX: 0000000000000000 RSI: 0002000000000003 RDI: 0000000000000001
RBP: 00007f2b9020e2a0 R08: 0000000000000000 R09: 8000400000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f2b903a6080 R15: 00007ffc406f7768
 </TASK>
net_ratelimit: 23334 callbacks suppressed
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
net_ratelimit: 24648 callbacks suppressed
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/21 21:59 upstream a3daad821514 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto INFO: rcu detected stall in sys_move_pages
* Struck through repros no longer work on HEAD.