[ 4443] 0 4443 18246 10146 29 4 0 1000 syz-executor.1
[ 4468] 0 4468 18246 11795 32 4 0 1000 syz-executor.3
[ 4479] 0 4479 18246 10047 29 4 0 1000 syz-executor.1
[ 4532] 0 4532 18279 10228 29 4 0 1000 syz-executor.3
[ 4559] 0 4559 18279 11212 31 4 0 1000 syz-executor.1
INFO: rcu_preempt detected stalls on CPUs/tasks:
Tasks blocked on level-0 rcu_node (CPUs 0-1): P5008
(detected by 1, t=10502 jiffies, g=37629, c=37628, q=4)
syz-executor.3 R running task 26224 5008 5001 0x00000000
Call Trace:
sched_show_task kernel/sched/core.c:5237 [inline]
sched_show_task.cold+0x342/0x3c0 kernel/sched/core.c:5212
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
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:console_unlock+0x76a/0xc70 kernel/printk/printk.c:2405
RSP: 0000:ffff888130b3f640 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffff11038c9c11e
RDX: 0000000000000000 RSI: ffff8881c64e08d0 RDI: 0000000000000297
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffba1ab7f0
R13: ffffffffbcdda1e0 R14: dffffc0000000000 R15: 000000000000006b
vprintk_emit+0x128/0x330 kernel/printk/printk.c:1923
vprintk_func+0x58/0x152 kernel/printk/printk_safe.c:401
printk+0xba/0xed kernel/printk/printk.c:1996
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:484 [inline]
__alloc_pages_node include/linux/gfp.h:497 [inline]
alloc_pages_node include/linux/gfp.h:511 [inline]
__page_cache_alloc include/linux/pagemap.h:226 [inline]
pagecache_get_page+0x246/0x7e0 mm/filemap.c:1517
filemap_fault+0x8da/0x18a0 mm/filemap.c:2518
ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6233
__do_fault+0x100/0x380 mm/memory.c:3223
do_read_fault mm/memory.c:3633 [inline]
do_fault mm/memory.c:3759 [inline]
handle_pte_fault mm/memory.c:3989 [inline]
__handle_mm_fault+0x9bf/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: 4c0d71:0x4d3d88
RSP: 0005:000000000075c118 EFLAGS: 7fa6b85c56d4
syz-executor.3 R running task 26224 5008 5001 0x00000000
Call Trace:
sched_show_task kernel/sched/core.c:5237 [inline]
sched_show_task.cold+0x342/0x3c0 kernel/sched/core.c:5212
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
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:console_unlock+0x76a/0xc70 kernel/printk/printk.c:2405
RSP: 0000:ffff888130b3f640 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffff11038c9c11e
RDX: 0000000000000000 RSI: ffff8881c64e08d0 RDI: 0000000000000297
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffba1ab7f0
R13: ffffffffbcdda1e0 R14: dffffc0000000000 R15: 000000000000006b
vprintk_emit+0x128/0x330 kernel/printk/printk.c:1923
vprintk_func+0x58/0x152 kernel/printk/printk_safe.c:401
printk+0xba/0xed kernel/printk/printk.c:1996
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:484 [inline]
__alloc_pages_node include/linux/gfp.h:497 [inline]
alloc_pages_node include/linux/gfp.h:511 [inline]
__page_cache_alloc include/linux/pagemap.h:226 [inline]
pagecache_get_page+0x246/0x7e0 mm/filemap.c:1517
filemap_fault+0x8da/0x18a0 mm/filemap.c:2518
ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6233
__do_fault+0x100/0x380 mm/memory.c:3223
do_read_fault mm/memory.c:3633 [inline]
do_fault mm/memory.c:3759 [inline]
handle_pte_fault mm/memory.c:3989 [inline]
__handle_mm_fault+0x9bf/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: 4c0d71:0x4d3d88
RSP: 0005:000000000075c118 EFLAGS: 7fa6b85c56d4
[ 4560] 0 4560 18279 10952 30 4 0 1000 syz-executor.2
[ 4633] 0 4633 18246 12844 34 4 0 1000 syz-executor.1
[ 4688] 0 4688 18279 12844 33 4 0 1000 syz-executor.2
[ 4703] 0 4703 18246 11370 31 4 0 1000 syz-executor.4
[ 4720] 0 4720 18246 12329 33 4 0 1000 syz-executor.1
[ 4890] 0 4890 3649 42 13 3 0 0 getty
[ 4891] 0 4891 3649 42 14 3 0 0 getty
[ 4892] 0 4892 3649 41 13 3 0 0 getty
[ 4893] 0 4893 3649 43 13 3 0 0 getty
[ 4894] 0 4894 3649 42 13 3 0 0 getty
[ 4895] 0 4895 3649 40 12 3 0 0 getty
[ 4955] 0 4955 18312 10327 30 4 0 1000 syz-executor.3
[ 4967] 0 4967 18279 9999 28 4 0 1000 syz-executor.0
[ 4966] 0 4966 18279 9536 28 4 0 1000 syz-executor.1
[ 4968] 0 4968 18279 11378 32 4 0 1000 syz-executor.3
[ 4969] 0 4969 18279 8998 26 4 0 1000 syz-executor.5
[ 4970] 0 4970 18279 10480 29 4 0 1000 syz-executor.2
[ 4972] 0 4972 18246 9548 27 4 0 1000 syz-executor.4
[ 4981] 0 4981 95 1 2 2 0 0 modprobe
[ 4982] 0 4982 55 1 1 1 0 0 modprobe
[ 4984] 0 4984 95 1 2 2 0 0 modprobe
[ 5008] 0 5008 18279 11378 32 4 0 1000 syz-executor.3
[ 5010] 0 5010 18279 8998 26 4 0 1000 syz-executor.5
Out of memory: Kill process 8959 (syz-executor.3) score 1007 or sacrifice child
Killed process 8959 (syz-executor.3) total-vm:72984kB, anon-rss:16560kB, file-rss:34816kB, shmem-rss:0kB
audit: type=1400 audit(2000002429.030:110996): avc: denied { map } for pid=4984 comm="modprobe" path="/etc/ld.so.cache" dev="sda1" ino=2503 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000002429.120:110997): avc: denied { map } for pid=4982 comm="modprobe" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000002429.120:110998): avc: denied { map } for pid=4982 comm="modprobe" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: audit_backlog=65 > audit_backlog_limit=64
audit: audit_backlog=65 > audit_backlog_limit=64
audit: audit_backlog=65 > audit_backlog_limit=64
audit: audit_backlog=65 > audit_backlog_limit=64
audit: audit_lost=4738 audit_rate_limit=0 audit_backlog_limit=64
audit: audit_lost=4739 audit_rate_limit=0 audit_backlog_limit=64
audit: audit_backlog=65 > audit_backlog_limit=64