syzbot


INFO: rcu detected stall in __alloc_pages_nodemask

Status: auto-closed as invalid on 2020/02/18 15:37
Reported-by: syzbot+cc16ca82d6215f5362aa@syzkaller.appspotmail.com
First crash: 1696d, last: 1696d

Sample crash report:
[ 9441]     0  9441    18145     8745      25       4        0          1000 syz-executor.2
[ 9453]     0  9453    18178     8746      26       4        0          1000 syz-executor.1
[ 9467]     0  9467    34530     8753      27       4        0          1000 syz-executor.2
[ 9472]     0  9472    34530     8730      28       4        0          1000 syz-executor.1
[ 9514]     0  9514    34629     8737      30       4        0          1000 syz-executor.0
INFO: rcu_preempt detected stalls on CPUs/tasks:
	Tasks blocked on level-0 rcu_node (CPUs 0-1): P10747
	(detected by 1, t=10502 jiffies, g=137807, c=137806, q=21209)
syz-executor.3  R  running task    27344 10747  11509 0x0000000c
Call Trace:
 <IRQ>
 sched_show_task kernel/sched/core.c:5236 [inline]
 sched_show_task.cold+0x342/0x3c0 kernel/sched/core.c:5211
 rcu_print_detail_task_stall_rnp+0xbf/0xf8 kernel/rcu/tree_plugin.h:568
 rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:581 [inline]
 print_other_cpu_stall kernel/rcu/tree.c:1488 [inline]
 check_cpu_stall kernel/rcu/tree.c:1616 [inline]
 __rcu_pending kernel/rcu/tree.c:3390 [inline]
 rcu_pending kernel/rcu/tree.c:3452 [inline]
 rcu_check_callbacks.cold+0x7c2/0xdb2 kernel/rcu/tree.c:2792
 update_process_times+0x24/0x60 kernel/time/timer.c:1590
 tick_sched_handle.isra.0+0x73/0x150 kernel/time/tick-sched.c:161
 tick_sched_timer+0x7e/0x170 kernel/time/tick-sched.c:1321
 __run_hrtimer kernel/time/hrtimer.c:1259 [inline]
 __hrtimer_run_queues+0x28b/0xc40 kernel/time/hrtimer.c:1323
 hrtimer_interrupt+0x1bd/0x490 kernel/time/hrtimer.c:1357
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline]
 smp_apic_timer_interrupt+0x147/0x650 arch/x86/kernel/apic/apic.c:1100
 apic_timer_interrupt+0x8c/0xa0 arch/x86/entry/entry_64.S:792
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:console_unlock+0x76a/0xc70 kernel/printk/printk.c:2399
RSP: 0018:ffff8881928cf750 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffff1100de83cde
RDX: 0000000000000000 RSI: ffff88806f41e6d0 RDI: 0000000000000297
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8a3aa300
R13: ffffffff8cfd8160 R14: dffffc0000000000 R15: 000000000000006b
 vprintk_emit+0x128/0x330 kernel/printk/printk.c:1917
 vprintk_func+0x58/0x152 kernel/printk/printk_safe.c:401
 printk+0xba/0xed kernel/printk/printk.c:1990
 dump_tasks mm/oom_kill.c:396 [inline]
 dump_header+0x7ab/0x848 mm/oom_kill.c:428
 oom_kill_process.cold+0x10/0xde6 mm/oom_kill.c:861
 out_of_memory mm/oom_kill.c:1084 [inline]
 out_of_memory+0x2d2/0xab0 mm/oom_kill.c:1023
 __alloc_pages_may_oom mm/page_alloc.c:3415 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4112 [inline]
 __alloc_pages_nodemask+0x1988/0x2370 mm/page_alloc.c:4277
 __alloc_pages include/linux/gfp.h:461 [inline]
 __alloc_pages_node include/linux/gfp.h:474 [inline]
 alloc_pages_node include/linux/gfp.h:488 [inline]
 alloc_zeroed_user_highpage_movable include/linux/highmem.h:184 [inline]
 do_anonymous_page mm/memory.c:3133 [inline]
 handle_pte_fault mm/memory.c:3987 [inline]
 __handle_mm_fault+0x1116/0x2700 mm/memory.c:4113
 handle_mm_fault+0x2f1/0x6da mm/memory.c:4150
 __do_page_fault+0x477/0xbb0 arch/x86/mm/fault.c:1420
 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1122
RIP: 8e11f700:0x1
RSP: 20000:00007ffd5d2e6160 EFLAGS: 7ffd5d2e6250
syz-executor.3  R  running task    27344 10747  11509 0x0000000c
Call Trace:
 <IRQ>
 sched_show_task kernel/sched/core.c:5236 [inline]
 sched_show_task.cold+0x342/0x3c0 kernel/sched/core.c:5211
 rcu_print_detail_task_stall_rnp+0xbf/0xf8 kernel/rcu/tree_plugin.h:568
 rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:583 [inline]
 print_other_cpu_stall kernel/rcu/tree.c:1488 [inline]
 check_cpu_stall kernel/rcu/tree.c:1616 [inline]
 __rcu_pending kernel/rcu/tree.c:3390 [inline]
 rcu_pending kernel/rcu/tree.c:3452 [inline]
 rcu_check_callbacks.cold+0x81a/0xdb2 kernel/rcu/tree.c:2792
 update_process_times+0x24/0x60 kernel/time/timer.c:1590
 tick_sched_handle.isra.0+0x73/0x150 kernel/time/tick-sched.c:161
 tick_sched_timer+0x7e/0x170 kernel/time/tick-sched.c:1321
 __run_hrtimer kernel/time/hrtimer.c:1259 [inline]
 __hrtimer_run_queues+0x28b/0xc40 kernel/time/hrtimer.c:1323
 hrtimer_interrupt+0x1bd/0x490 kernel/time/hrtimer.c:1357
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline]
 smp_apic_timer_interrupt+0x147/0x650 arch/x86/kernel/apic/apic.c:1100
 apic_timer_interrupt+0x8c/0xa0 arch/x86/entry/entry_64.S:792
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:console_unlock+0x76a/0xc70 kernel/printk/printk.c:2399
RSP: 0018:ffff8881928cf750 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffff1100de83cde
RDX: 0000000000000000 RSI: ffff88806f41e6d0 RDI: 0000000000000297
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8a3aa300
R13: ffffffff8cfd8160 R14: dffffc0000000000 R15: 000000000000006b
 vprintk_emit+0x128/0x330 kernel/printk/printk.c:1917
 vprintk_func+0x58/0x152 kernel/printk/printk_safe.c:401
 printk+0xba/0xed kernel/printk/printk.c:1990
 dump_tasks mm/oom_kill.c:396 [inline]
 dump_header+0x7ab/0x848 mm/oom_kill.c:428
 oom_kill_process.cold+0x10/0xde6 mm/oom_kill.c:861
 out_of_memory mm/oom_kill.c:1084 [inline]
 out_of_memory+0x2d2/0xab0 mm/oom_kill.c:1023
 __alloc_pages_may_oom mm/page_alloc.c:3415 [inline]
 __alloc_pages_slowpath mm/page_alloc.c:4112 [inline]
 __alloc_pages_nodemask+0x1988/0x2370 mm/page_alloc.c:4277
 __alloc_pages include/linux/gfp.h:461 [inline]
 __alloc_pages_node include/linux/gfp.h:474 [inline]
 alloc_pages_node include/linux/gfp.h:488 [inline]
 alloc_zeroed_user_highpage_movable include/linux/highmem.h:184 [inline]
 do_anonymous_page mm/memory.c:3133 [inline]
 handle_pte_fault mm/memory.c:3987 [inline]
 __handle_mm_fault+0x1116/0x2700 mm/memory.c:4113
 handle_mm_fault+0x2f1/0x6da mm/memory.c:4150
 __do_page_fault+0x477/0xbb0 arch/x86/mm/fault.c:1420
 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1122
RIP: 8e11f700:0x1
RSP: 20000:00007ffd5d2e6160 EFLAGS: 7ffd5d2e6250
[ 9550]     0  9550    18211     8779      25       4        0          1000 syz-executor.2
[ 9576]     0  9576    34563     8785      28       4        0          1000 syz-executor.2
[ 9622]     0  9622    34662     8762      30       4        0          1000 syz-executor.0
[ 9630]     0  9630    34563     8754      28       4        0          1000 syz-executor.1
[ 9650]     0  9650    34563     8755      27       4        0          1000 syz-executor.2
[ 9684]     0  9684    34563     8754      28       4        0          1000 syz-executor.1
[ 9692]     0  9692    35561    10038      32       4        0          1000 syz-executor.0
[ 9722]     0  9722    34563     8763      28       4        0          1000 syz-executor.2
[ 9764]     0  9764    18244     8751      28       4        0          1000 syz-executor.0
[ 9771]     0  9771    18244     8751      28       4        0          1000 syz-executor.0
[ 9780]     0  9780    34563     8763      28       4        0          1000 syz-executor.2
[ 9797]     0  9797    34662    10040      32       4        0          1000 syz-executor.0
[ 9812]     0  9812    34563     8754      28       4        0          1000 syz-executor.1
[ 9823]     0  9823    34563     8785      28       4        0          1000 syz-executor.2
[ 9840]     0  9840    34662    10040      32       4        0          1000 syz-executor.0
[ 9849]     0  9849    34629    10039      32       4        0          1000 syz-executor.0
[ 9879]     0  9879    34563     8755      27       4        0          1000 syz-executor.2
[ 9883]     0  9883    34563     8754      28       4        0          1000 syz-executor.1
[ 9929]     0  9929    34629     8760      30       4        0          1000 syz-executor.0
[ 9946]     0  9946    34563     8754      28       4        0          1000 syz-executor.1
[10020]     0 10020    34563     8763      28       4        0          1000 syz-executor.2
[10074]     0 10074    34629     8738      30       4        0          1000 syz-executor.0
[10085]     0 10085    34563     8785      28       4        0          1000 syz-executor.2
[10144]     0 10144    34563     8733      27       4        0          1000 syz-executor.2
[10157]     0 10157    34563     8754      28       4        0          1000 syz-executor.1
[10195]     0 10195    18145     8745      25       4        0          1000 syz-executor.2
[10204]     0 10204    34563     8732      28       4        0          1000 syz-executor.1
[10216]     0 10216    34563     8733      27       4        0          1000 syz-executor.2
[10260]     0 10260    34563     8732      28       4        0          1000 syz-executor.1
[10312]     0 10312    34563     8732      28       4        0          1000 syz-executor.1
[10321]     0 10321    34662    10019      30       4        0          1000 syz-executor.2
[10330]     0 10330    34629     8737      30       4        0          1000 syz-executor.0
[10365]     0 10365    34629     8737      30       4        0          1000 syz-executor.0
[10381]     0 10381    34662    10041      30       4        0          1000 syz-executor.2
[10394]     0 10394    34695     8742      30       4        0          1000 syz-executor.0
[10412]     0 10412    34563     8732      28       4        0          1000 syz-executor.1
[10474]     0 10474    34662     8740      30       4        0          1000 syz-executor.0
[10498]     0 10498    18145     8744      26       4        0          1000 syz-executor.1
[10550]     0 10550    34662    10042      30       4        0          1000 syz-executor.2
[10666]     0 10666    18145     8745      27       4        0          1000 syz-executor.0
[10675]     0 10675    34629    10046      30       4        0          1000 syz-executor.2
[10716]     0 10716    34629     8738      30       4        0          1000 syz-executor.0
[10726]     0 10726    34596     8736      28       4        0          1000 SEG6
[10740]     0 10740    34563     8754      28       4        0          1000 syz-executor.1
[10751]     0 10751    34629     8738      30       4        0          1000 syz-executor.0
[10765]     0 10765    34596     8736      28       4        0          1000 syz-executor.2
[10795]     0 10795    34662     8739      30       4        0          1000 syz-executor.0
[10803]     0 10803    34563     8754      28       4        0          1000 syz-executor.1
[10808]     0 10808    34695    10021      30       4        0          1000 syz-executor.2
[10843]     0 10843    34695    10021      30       4        0          1000 syz-executor.2
[10874]     0 10874    34695    10043      30       4        0          1000 syz-executor.2
[10931]     0 10931    18178     8748      26       4        0          1000 syz-executor.2
[10959]     0 10959    34563     8754      28       4        0          1000 syz-executor.1
[10974]     0 10974    34629     8737      28       4        0          1000 syz-executor.2
[11068]     0 11068    34563     8732      28       4        0          1000 syz-executor.1
[11091]     0 11091    34695    10021      30       4        0          1000 syz-executor.2
[11130]     0 11130    34563     8732      28       4        0          1000 syz-executor.1
[11157]     0 11157    18145     8745      27       4        0          1000 syz-executor.0
[11228]     0 11228    34662     8739      30       4        0          1000 syz-executor.0
[11246]     0 11246    34662     8763      28       4        0          1000 syz-executor.2
[11369]     0 11369    34695    10018      30       4        0          1000 syz-executor.2
[11401]     0 11401    34662     8761      30       4        0          1000 syz-executor.0
[11430]     0 11430    34629     8760      28       4        0          1000 syz-executor.2
[11454]     0 11454    34563     8731      28       4        0          1000 syz-executor.1
[11475]     0 11475    34629    10038      32       4        0          1000 syz-executor.0
[11482]     0 11482    34629     8760      28       4        0          1000 syz-executor.2
[11516]     0 11516    34563     8731      28       4        0          1000 syz-executor.1
[11558]     0 11558    34530     8782      30       4        0          1000 syz-executor.0
[11577]     0 11577    34563     8731      28       4        0          1000 syz-executor.1
[11612]     0 11612    34563     8756      30       4        0          1000 syz-executor.0
[11638]     0 11638    34563     8754      28       4        0          1000 syz-executor.1
[11760]     0 11760    34563     8732      28       4        0          1000 syz-executor.1
[11777]     0 11777    34629     8761      28       4        0          1000 syz-executor.2
[11818]     0 11818    34629     8761      28       4        0          1000 syz-executor.2
[11926]     0 11926    34662     8762      28       4        0          1000 syz-executor.2
[12002]     0 12002    34662     8763      28       4        0          1000 syz-executor.2
[12071]     0 12071    34629     8739      28       4        0          1000 syz-executor.2
[12105]     0 12105    34563     8754      28       4        0          1000 syz-executor.1
[12153]     0 12153    34629     8761      28       4        0          1000 syz-executor.2
[12180]     0 12180    34563     8732      28       4        0          1000 syz-executor.1
[12211]     0 12211    34629     8761      28       4        0          1000 syz-executor.2
[12307]     0 12307    34629     8761      28       4        0          1000 syz-executor.2
[12330]     0 12330    34563     8754      28       4        0          1000 syz-executor.1
[12398]     0 12398    18178     8748      26       4        0          1000 syz-executor.2
[12427]     0 12427    34563     8753      28       4        0          1000 syz-executor.1
[12449]     0 12449    34629     8738      28       4        0          1000 syz-executor.2
[12497]     0 12497    34563     8753      28       4        0          1000 syz-executor.1
[12516]     0 12516    34596     8758      29       5        0          1000 syz-executor.2
[12599]     0 12599    34629     8738      28       4        0          1000 syz-executor.2
[12751]     0 12751    34563     8732      28       4        0          1000 syz-executor.1
[12788]     0 12788    34662    10019      30       4        0          1000 syz-executor.2
[12887]     0 12887    34563     8754      28       4        0          1000 syz-executor.1
[12930]     0 12930    34695     8765      28       4        0          1000 syz-executor.2
[12957]     0 12957    34563     8754      28       4        0          1000 syz-executor.1
[13021]     0 13021    18145     8746      26       4        0          1000 syz-executor.2
[13046]     0 13046    34563     8754      28       4        0          1000 syz-executor.1
[13125]     0 13125    34563     8754      28       4        0          1000 syz-executor.1
[13129]     0 13129    34662     8762      28       4        0          1000 syz-executor.2
[13319]     0 13319    34563     8753      28       4        0          1000 syz-executor.1
[13331]     0 13331    34662     8762      28       4        0          1000 syz-executor.2
[13403]     0 13403    34563     8753      28       4        0          1000 syz-executor.1
[13530]     0 13530    34563     8754      28       4        0          1000 syz-executor.1
[13533]     0 13533    34596     8758      28       4        0          1000 syz-executor.2
[13602]     0 13602    34563     8754      28       4        0          1000 syz-executor.1
[13615]     0 13615    34596     8758      28       4        0          1000 syz-executor.2
[13705]     0 13705    34629     8738      28       4        0          1000 syz-executor.2
[13726]     0 13726    34563     8754      28       4        0          1000 syz-executor.1
[13817]     0 13817    34563     8754      28       4        0          1000 syz-executor.1
[13904]     0 13904    34563     8732      28       4        0          1000 syz-executor.1
[14305]     0 14305    18178     8746      26       4        0          1000 syz-executor.1
[14484]     0 14484    34596     8765      28       4        0          1000 syz-executor.2
[14655]     0 14655    34563     8732      28       4        0          1000 syz-executor.1
[14676]     0 14676    34662     8740      28       4        0          1000 syz-executor.2
[14780]     0 14780    34563     8754      28       4        0          1000 syz-executor.1
[14805]     0 14805    34629    10017      30       4        0          1000 syz-executor.2
[14987]     0 14987    18145     8744      26       4        0          1000 syz-executor.1
[15019]     0 15019    34563     8754      28       4        0          1000 syz-executor.1
[15106]     0 15106    34563     8731      28       4        0          1000 syz-executor.1
[15122]     0 15122    34629     8738      28       4        0          1000 syz-executor.2
[15251]     0 15251    34563     8731      28       4        0          1000 syz-executor.1
[15303]     0 15303    34563     8732      28       4        0          1000 syz-executor.1
[15330]     0 15330    34629     8738      28       4        0          1000 syz-executor.2
[15378]     0 15378    34629     8738      28       4        0          1000 syz-executor.2
[15414]     0 15414    34563     8732      28       4        0          1000 syz-executor.1
[15434]     0 15434    34662     8763      28       4        0          1000 syz-executor.2
[15519]     0 15519    34563     8732      28       4        0          1000 syz-executor.1
[15614]     0 15614    34563     8732      28       4        0          1000 syz-executor.1
[15673]     0 15673    34629     8739      28       4        0          1000 syz-executor.2
[15708]     0 15708    34563     8732      28       4        0          1000 syz-executor.1
[15785]     0 15785    34563     8734      28       4        0          1000 syz-executor.2
[15821]     0 15821    34629    10014      30       4        0          1000 syz-executor.2
[15829]     0 15829    34563     8732      28       4        0          1000 syz-executor.1
[15898]     0 15898    34629    10014      30       4        0          1000 syz-executor.2
[15930]     0 15930    34563     8732      28       4        0          1000 syz-executor.1
[15946]     0 15946    18145     8714      25       3        0          1000 syz-executor.2
[16012]     0 16012    34662    10009      29       3        0          1000 syz-executor.2
[16039]     0 16039    34563     8732      28       4        0          1000 syz-executor.1
[16127]     0 16127    34695    10044      30       4        0          1000 syz-executor.2
[16135]     0 16135    34563     8754      28       4        0          1000 syz-executor.1
[16283]     0 16283    34563     8761      29       4        0          1000 syz-executor.0
[16344]     0 16344    34695    10021      30       4        0          1000 syz-executor.2
[16446]     0 16446    34563     8754      28       4        0          1000 syz-executor.1
[16478]     0 16478    34563     8761      29       4        0          1000 syz-executor.0
[16499]     0 16499    34596     8737      28       4        0          1000 syz-executor.2
[16564]     0 16564    34596     8737      28       4        0          1000 syz-executor.2
[16729]     0 16729    34695    10021      30       4        0          1000 syz-executor.2
[16820]     0 16820    34563     8754      28       4        0          1000 syz-executor.1
[16825]     0 16825    34563     8763      28       4        0          1000 syz-executor.2
[17005]     0 17005    34563     8755      27       4        0          1000 syz-executor.2
[17034]     0 17034    34563     8732      28       4        0          1000 syz-executor.1
[17178]     0 17178    34629     8789      28       4        0          1000 syz-executor.2
[17305]     0 17305    34662     8821      28       4        0          1000 syz-executor.2
[17330]     0 17330    18145     8744      26       4        0          1000 syz-executor.1
[17380]     0 17380    34563     8754      28       4        0          1000 syz-executor.1
[17386]     0 17386    34662     8821      28       4        0          1000 syz-executor.2
[17551]     0 17551    18211     8748      26       4        0          1000 syz-executor.1
[17635]     0 17635    18178     8748      26       4        0          1000 syz-executor.2
[17676]     0 17676    34662    10074      30       4        0          1000 syz-executor.2
[17724]     0 17724    34563     8754      28       4        0          1000 syz-executor.1
[17990]     0 17990    34629     8797      28       4        0          1000 syz-executor.2
[18004]     0 18004    34563     8732      28       4        0          1000 syz-executor.1
[18121]     0 18121    34629     8819      28       4        0          1000 syz-executor.2
[18128]     0 18128    18145     8744      26       4        0          1000 syz-executor.1
[18284]     0 18284    34629     8797      28       4        0          1000 syz-executor.2
[18327]     0 18327    18145     8712      25       3        0          1000 syz-executor.1
[18458]     0 18458    18145     8712      25       3        0          1000 syz-executor.1
[18590]     0 18590    18178     8714      25       3        0          1000 syz-executor.1
[18592]     0 18592    34629     8767      28       4        0          1000 syz-executor.2
[18703]     0 18703    34629     8797      28       4        0          1000 syz-executor.2
[18714]     0 18714    34563     8732      28       4        0          1000 syz-executor.1
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[10747]     0 10747    18178     8555      27       4        0          1000 syz-executor.3
[10752]     0 10750    18178     8746      27       4        0          1000 syz-executor.5
[10775]     0 10775     5717      916      15       3        0         -1000 udevd
[10810]     0 10810    18178     8731      25       4        0          1000 syz-executor.2
[10824]     0 10812    18476     9074      28       4        0          1000 syz-executor.0
[10840]     0 10829    18377     9039      27       4        0          1000 syz-executor.1
[10876]     0 10876     3649      420      13       3        0             0 getty
[10877]     0 10877     3649      440      13       3        0             0 getty
[10879]     0 10879     3649      437      12       3        0             0 getty
[10880]     0 10880     3649      434      14       3        0             0 getty
[10881]     0 10881     3649      418      13       3        0             0 getty
[10883]     0 10883     3649      436      13       3        0             0 getty
Out of memory: Kill process 2855 (syz-executor.0) score 1007 or sacrifice child
Killed process 2855 (syz-executor.0) total-vm:72976kB, anon-rss:18616kB, file-rss:34688kB, shmem-rss:0kB
oom_reaper: reaped process 2855 (syz-executor.0), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/10/21 15:36 android-4.14 234de92896af b24d2b8a .config console log report ci-android-414-kasan-gce-root
* Struck through repros no longer work on HEAD.