INFO: rcu detected stall in sys_mmap (2)

Status: auto-obsoleted due to no activity on 2024/03/03 09:59
Subsystems: mm kasan
[Documentation on labels]
First crash: 1089d, last: 985d
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 INFO: rcu detected stall in sys_mmap 1 1 691d 691d 0/3 auto-obsoleted due to no activity on 2025/01/02 00:33
upstream INFO: rcu detected stall in sys_mmap (3) mm 1 syz, C error error 69 54m 628d 0/29 upstream: reported C repro on 2024/11/25 13:27
upstream INFO: rcu detected stall in sys_mmap mm 1 1 2447d 2447d 0/29 closed as invalid on 2019/12/04 14:04
linux-5.15 BUG: soft lockup in sys_mmap 1 1 356d 356d 0/3 auto-obsoleted due to no activity on 2025/12/03 05:34

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (3 ticks this GP) idle=f3e4/1/0x4000000000000000 softirq=31831/31831 fqs=4
rcu: 	(detected by 1, t=10506 jiffies, g=47217, q=199 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10712 Comm: syz-executor.1 Not tainted 6.6.0-rc4-syzkaller-00176-gb78b18fb8ee1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:trace_lock_acquire include/trace/events/lock.h:24 [inline]
RIP: 0010:lock_acquire+0xbf/0x510 kernel/locking/lockdep.c:5724
Code: 07 0f 87 d7 03 00 00 89 d5 be 08 00 00 00 48 89 e8 48 c1 e8 06 48 8d 3c c5 d0 ac cd 8e e8 c9 2d 74 00 48 0f a3 2d 71 1d 66 0d <0f> 82 9a 03 00 00 48 c7 c0 38 e2 cd 8e 48 ba 00 00 00 00 00 fc ff
RSP: 0018:ffffc90000007ca0 EFLAGS: 00000047
RAX: 0000000000000001 RBX: 1ffff92000000f96 RCX: ffffffff81678f57
RDX: fffffbfff1d9b59b RSI: 0000000000000008 RDI: ffffffff8ecdacd0
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff1d9b59a
R10: ffffffff8ecdacd7 R11: ffffc90000007ff8 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8cba7920 R15: 0000000000000000
FS:  00007efc3326b6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fe24000 CR3: 000000001c36b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
 rcu_read_lock include/linux/rcupdate.h:749 [inline]
 advance_sched+0x67c/0xc60 net/sched/sch_taprio.c:996
 __run_hrtimer kernel/time/hrtimer.c:1688 [inline]
 __hrtimer_run_queues+0x203/0xc10 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline]
 __sysvec_apic_timer_interrupt+0x105/0x3f0 arch/x86/kernel/apic/apic.c:1080
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1074
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:xas_next_offset lib/xarray.c:164 [inline]
RIP: 0010:xas_find+0x177/0x870 lib/xarray.c:1258
Code: 89 f7 4c 89 fe e8 b9 83 53 f7 4d 39 fe 74 16 e8 9f 88 53 f7 41 83 ec 01 41 83 e4 3f 41 8d 6c 24 01 40 88 6b 12 e8 89 88 53 f7 <4c> 89 ea 83 c5 01 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6
RSP: 0018:ffffc90004b97718 EFLAGS: 00000246
RAX: 0000000000040000 RBX: ffffc90004b97908 RCX: ffffc900038f1000
RDX: 0000000000040000 RSI: ffffffff8a333c87 RDI: 0000000000000006
RBP: 000000000000002f R08: 0000000000000006 R09: 000000000000002f
R10: 000000000000002f R11: dffffc0000000000 R12: 00000000000005ef
R13: ffffc90004b9791a R14: 000000000000002f R15: 000000000000002f
 xas_next_entry+0x267/0x3c0 include/linux/xarray.h:1704
 next_uptodate_folio+0x29/0x550 mm/filemap.c:3434
 filemap_map_pages+0x534/0x1330 mm/filemap.c:3607
 do_fault_around mm/memory.c:4525 [inline]
 do_read_fault mm/memory.c:4558 [inline]
 do_fault mm/memory.c:4705 [inline]
 do_pte_missing mm/memory.c:3669 [inline]
 handle_pte_fault mm/memory.c:4978 [inline]
 __handle_mm_fault+0x291c/0x3e10 mm/memory.c:5119
 handle_mm_fault+0x478/0xa00 mm/memory.c:5284
 faultin_page mm/gup.c:956 [inline]
 __get_user_pages+0x4b2/0x1480 mm/gup.c:1239
 populate_vma_page_range+0x2d4/0x410 mm/gup.c:1666
 __mm_populate+0x1d7/0x380 mm/gup.c:1775
 mm_populate include/linux/mm.h:3305 [inline]
 vm_mmap_pgoff+0x2cd/0x3b0 mm/util.c:551
 ksys_mmap_pgoff+0x7d/0x5b0 mm/mmap.c:1400
 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:93 [inline]
 __se_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
 __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:86
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7efc3247cae9
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:00007efc3326b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007efc3259bf80 RCX: 00007efc3247cae9
RDX: b635773f04ebbeeb RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007efc324c847a R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007efc3259bf80 R15: 00007ffe969ed1b8
 </TASK>
rcu: rcu_preempt kthread starved for 10490 jiffies! g47217 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:27920 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0xee1/0x5a10 kernel/sched/core.c:6695
 schedule+0xe7/0x1b0 kernel/sched/core.c:6771
 schedule_timeout+0x157/0x2c0 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x1ec/0xa50 kernel/rcu/tree.c:1613
 rcu_gp_kthread+0x249/0x380 kernel/rcu/tree.c:1812
 kthread+0x33c/0x440 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 10730 Comm: syz-executor.4 Not tainted 6.6.0-rc4-syzkaller-00176-gb78b18fb8ee1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:lock_is_held_type+0x104/0x140 kernel/locking/lockdep.c:5829
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 57 a7 c3 75 83 f8 01 75 29 9c 58 f6 c4 02 75 3d 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 45 31 ed eb b9 0f 0b 48
RSP: 0018:ffffc900003f8c78 EFLAGS: 00000286
RAX: 0000000000000046 RBX: ffff888034b02c28 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8a8c9ea0 RDI: ffffffff8ae911e0
RBP: ffffffff8cba7920 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 3004320000020601 R12: ffff888034b020c0
R13: 0000000000000001 R14: 00000000ffffffff R15: 0000000000000004
FS:  00007fe8ae1db6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30324000 CR3: 000000003ecd6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __mac80211_hwsim_beacon_tx+0x46b/0x5e0 drivers/net/wireless/virtual/mac80211_hwsim.c:2215
 mac80211_hwsim_beacon_tx+0x41b/0x730 drivers/net/wireless/virtual/mac80211_hwsim.c:2264
 __iterate_interfaces+0x2d2/0x580 net/mac80211/util.c:766
 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:802
 mac80211_hwsim_beacon+0x101/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2290
 __run_hrtimer kernel/time/hrtimer.c:1688 [inline]
 __hrtimer_run_queues+0x203/0xc10 kernel/time/hrtimer.c:1752
 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1769
 __do_softirq+0x218/0x965 kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1074
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:csd_lock_wait kernel/smp.c:300 [inline]
RIP: 0010:smp_call_function_many_cond+0x4d6/0x1570 kernel/smp.c:844
Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 fc 4c 89 fd 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 4c 8b 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 3c 0e 00 00 8b 43 08 31
RSP: 0018:ffffc90004b67540 EFLAGS: 00000246
RAX: 0000000000040000 RBX: ffff8880b98414c0 RCX: ffffc9000a65a000
RDX: 0000000000040000 RSI: ffffffff817b39c4 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed1017308299
R13: 0000000000000001 R14: ffff8880b993d900 R15: ffff8880b98414c8
 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1012
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1993 [inline]
 text_poke_bp_batch+0x2ce/0x960 arch/x86/kernel/alternative.c:2203
 text_poke_bp+0xa3/0xd0 arch/x86/kernel/alternative.c:2430
 __static_call_transform.constprop.0+0x2fb/0x550 arch/x86/kernel/static_call.c:111
 arch_static_call_transform+0x5b/0xb0 arch/x86/kernel/static_call.c:163
 __static_call_update+0xee/0x650 kernel/static_call_inline.c:147
 tracepoint_update_call kernel/tracepoint.c:317 [inline]
 tracepoint_add_func+0xa0a/0xe40 kernel/tracepoint.c:358
 tracepoint_probe_register_prio_may_exist+0xbd/0x100 kernel/tracepoint.c:482
 tracepoint_probe_register_may_exist include/linux/tracepoint.h:52 [inline]
 __bpf_probe_register kernel/trace/bpf_trace.c:2371 [inline]
 bpf_probe_register+0x164/0x1d0 kernel/trace/bpf_trace.c:2377
 bpf_raw_tp_link_attach+0x2e5/0x610 kernel/bpf/syscall.c:3626
 bpf_raw_tracepoint_open kernel/bpf/syscall.c:3653 [inline]
 __sys_bpf+0x31a/0x4e60 kernel/bpf/syscall.c:5377
 __do_sys_bpf kernel/bpf/syscall.c:5439 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5437 [inline]
 __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5437
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe8ad47cae9
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:00007fe8ae1db0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fe8ad59bf80 RCX: 00007fe8ad47cae9
RDX: 0000000000000010 RSI: 0000000020000200 RDI: 0000000000000011
RBP: 00007fe8ad4c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fe8ad59bf80 R15: 00007ffed9797c88
 </TASK>

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/10/06 15:47 upstream b78b18fb8ee1 db17ad9f .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_mmap
2023/12/04 09:55 linux-next 629a3b49f3f9 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sys_mmap
2023/08/30 13:44 linux-next 56585460cc2e 84803932 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sys_mmap
2023/08/22 17:15 linux-next 28c736b0e92e b81ca3f6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sys_mmap
* Struck through repros no longer work on HEAD.