RDX: 0000000000000fff RSI: 00007f12692115a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000d61260 R09: 0000000000000000
R10: 6b205d3134313735 R11: 0000000000000293 R12: 000000000065e420
R13: 00007f12679dd9c0 R14: 00007f126aa82040 R15: 0000000000000003
CPU: 1 PID: 6094 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #145
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
rcu: (detected by 0, t=10612 jiffies, g=35105, q=17)
Call Trace:
rcu: All QSes seen, last rcu_preempt kthread activity 10612 (4294982921-4294972309), jiffies_till_next_fqs=1, root ->qsmask 0x0
rsyslogd R running task 13744 5978 1 0x80000008
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
Call Trace:
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
sched_show_task.cold.84+0x2b6/0x30a kernel/sched/core.c:5293
__alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
print_other_cpu_stall.cold.66+0x7dd/0x8bb kernel/rcu/tree.c:1286
check_cpu_stall kernel/rcu/tree.c:1415 [inline]
rcu_pending kernel/rcu/tree.c:2961 [inline]
rcu_check_callbacks+0xfd7/0x13f0 kernel/rcu/tree.c:2506
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
nlmsg_new include/net/netlink.h:654 [inline]
__br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
update_process_times+0x2d/0x70 kernel/time/timer.c:1636
tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
__run_hrtimer kernel/time/hrtimer.c:1398 [inline]
__hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460
br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292
br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1034 [inline]
smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1059
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:slab_alloc_node mm/slab.c:3329 [inline]
RIP: 0010:kmem_cache_alloc_node+0x247/0x730 mm/slab.c:3642
Code: 3f 7e 0f 85 32 ff ff ff e8 05 1c 3e ff e9 28 ff ff ff e8 6c 51 c3 ff 48 83 3d 84 9a 8f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b7
RSP: 0000:ffff8801dae07450 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10037d4d938
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801dae074c0 R08: ffff8801bea6c9c0 R09: 0000000000000002
R10: 0000000000000000 R11: ffff8801bea6c080 R12: ffff8801d9beec00
R13: ffff8801d9beec00 R14: 0000000000000000 R15: 0000000000000286
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
alloc_skb include/linux/skbuff.h:997 [inline]
ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3836
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:lock_is_held_type+0x18b/0x210 kernel/locking/lockdep.c:3884
Code: ff df 41 c7 84 24 7c 08 00 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 63 48 83 3d cc 1f f1 07 00 74 30 48 89 df 57 9d <0f> 1f 44 00 00 48 83 c4 08 44 89 e8 5b 41 5c 41 5d 5d c3 48 83 c4
RSP: 0000:ffff8801bacfdfe0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: dffffc0000000000 RBX: 0000000000000286 RCX: ffffffff81b01bb4
RDX: 1ffffffff12a3f76 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801bacfe000 R08: ffff8801baeea080 R09: ffffed003b5e5b67
R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffff8801baeea080
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffffffffff
lock_is_held include/linux/lockdep.h:339 [inline]
list_lru_from_memcg_idx mm/list_lru.c:55 [inline]
list_lru_count_one+0x2fb/0x450 mm/list_lru.c:194
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
list_lru_shrink_count include/linux/list_lru.h:122 [inline]
super_cache_count+0x153/0x2e0 fs/super.c:144
do_shrink_slab+0x1b1/0xd30 mm/vmscan.c:465
shrink_slab+0x389/0x8c0 mm/vmscan.c:706
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
shrink_node+0x431/0x16b0 mm/vmscan.c:2758
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
shrink_zones mm/vmscan.c:2987 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3049
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:lock_is_held_type+0x18b/0x210 kernel/locking/lockdep.c:3884
Code: ff df 41 c7 84 24 7c 08 00 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 63 48 83 3d cc 1f f1 07 00 74 30 48 89 df 57 9d <0f> 1f 44 00 00 48 83 c4 08 44 89 e8 5b 41 5c 41 5d 5d c3 48 83 c4
RSP: 0000:ffff8801ae1ae5a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: dffffc0000000000 RBX: 0000000000000286 RCX: 0000000000000000
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3264
RDX: 1ffffffff12a3f76 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801ae1ae5c0 R08: ffff8801bea6c080 R09: ffffed003b5c5b67
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: ffff8801bea6c080
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffffffffffff
lock_is_held include/linux/lockdep.h:339 [inline]
rcu_read_lock_held+0xa9/0xc0 kernel/rcu/update.c:281
list_lru_from_memcg_idx mm/list_lru.c:55 [inline]
list_lru_count_one+0x31a/0x450 mm/list_lru.c:194
__perform_reclaim mm/page_alloc.c:3773 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3795 [inline]
__alloc_pages_slowpath+0xa14/0x2e10 mm/page_alloc.c:4196
list_lru_shrink_count include/linux/list_lru.h:122 [inline]
super_cache_count+0x153/0x2e0 fs/super.c:144
do_shrink_slab+0x1b1/0xd30 mm/vmscan.c:465
shrink_slab+0x389/0x8c0 mm/vmscan.c:706
shrink_node+0x431/0x16b0 mm/vmscan.c:2758
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
shrink_zones mm/vmscan.c:2987 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3049
alloc_pages include/linux/gfp.h:509 [inline]
__page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3264
page_cache_read mm/filemap.c:2312 [inline]
filemap_fault+0x1595/0x25f0 mm/filemap.c:2496
__perform_reclaim mm/page_alloc.c:3773 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3795 [inline]
__alloc_pages_slowpath+0xa14/0x2e10 mm/page_alloc.c:4196
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291
__do_fault+0x100/0x6b0 mm/memory.c:2996
do_read_fault mm/memory.c:3408 [inline]
do_fault mm/memory.c:3534 [inline]
handle_pte_fault mm/memory.c:3765 [inline]
__handle_mm_fault+0x3ea0/0x5be0 mm/memory.c:3889
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
__do_cache_alloc mm/slab.c:3356 [inline]
slab_alloc mm/slab.c:3384 [inline]
kmem_cache_alloc_trace+0x214/0x750 mm/slab.c:3618
kmalloc include/linux/slab.h:546 [inline]
syslog_print kernel/printk/printk.c:1301 [inline]
do_syslog+0xb9b/0x1690 kernel/printk/printk.c:1469
kmsg_read+0x8f/0xc0 fs/proc/kmsg.c:40
proc_reg_read+0x2a3/0x3d0 fs/proc/inode.c:231
handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
__vfs_read+0x117/0x9b0 fs/read_write.c:416
do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
__do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
vfs_read+0x17f/0x3c0 fs/read_write.c:452
ksys_read+0x101/0x260 fs/read_write.c:578
__do_sys_read fs/read_write.c:588 [inline]
__se_sys_read fs/read_write.c:586 [inline]
__x64_sys_read+0x73/0xb0 fs/read_write.c:586
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x45ddf3
Code: Bad RIP value.
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RSP: 002b:000000c42001fea0 EFLAGS: 00010206
RIP: 0033:0x7f126a43d1fd
RAX: ffffffffffffff92 RBX: 00000000162fa5d2 RCX: 000000000045ddf3
Code: Bad RIP value.
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fca40
RSP: 002b:00007f12679dce30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000206 R12: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000d75ce0 RCX: 00007f126a43d1fd
R13: 00000000000000ff R14: 00007f71ee19c000 R15: 0000000000000010
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
RDX: 0000000000000fff RSI: 00007f12692115a0 RDI: 0000000000000004
active_anon:60454 inactive_anon:2622 isolated_anon:0
active_file:13 inactive_file:12 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:9394 slab_unreclaimable:1443968
mapped:49154 shmem:2676 pagetables:649 bounce:0
free:13770 free_pcp:132 free_cma:0
RBP: 0000000000000000 R08: 0000000000d61260 R09: 0000000000000000
R10: 6b205d3134313735 R11: 0000000000000293 R12: 000000000065e420
Node 0 active_anon:241816kB inactive_anon:10488kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:10704kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 227328kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
R13: 00007f12679dd9c0 R14: 00007f126aa82040 R15: 0000000000000003
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
rcu: rcu_preempt kthread starved for 10612 jiffies! g35105 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
lowmem_reserve[]: 0 2818 6321 6321
rcu: RCU grace-period kthread stack dump:
Node 0 DMA32 free:25204kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
rcu_preempt R running task 22696 10 2 0x80000000
lowmem_reserve[]: 0 0 3503 3503
Call Trace:
Node 0 Normal free:13968kB min:37364kB low:46704kB high:56044kB active_anon:241816kB inactive_anon:10488kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6848kB pagetables:2596kB bounce:0kB free_pcp:280kB local_pcp:32kB free_cma:0kB
context_switch kernel/sched/core.c:2831 [inline]
__schedule+0x8cf/0x21d0 kernel/sched/core.c:3472
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 5*4kB (UM) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25204kB
Node 0 Normal: 692*4kB (MEH) 406*8kB (UMEH) 193*16kB (MEH) 86*32kB (MEH) 27*64kB (UMH) 1*128kB (U) 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13968kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
2701 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
schedule+0xfe/0x460 kernel/sched/core.c:3516
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342853 pages reserved
0 pages cma reserved
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
CPU: 1 PID: 6094 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #145
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
__alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
nlmsg_new include/net/netlink.h:654 [inline]
__br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
kthread+0x35a/0x440 kernel/kthread.c:246
br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
rsyslogd cpuset=/ mems_allowed=0
br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:lock_is_held_type+0x18b/0x210 kernel/locking/lockdep.c:3884
Code: ff df 41 c7 84 24 7c 08 00 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 63 48 83 3d cc 1f f1 07 00 74 30 48 89 df 57 9d <0f> 1f 44 00 00 48 83 c4 08 44 89 e8 5b 41 5c 41 5d 5d c3 48 83 c4
RSP: 0000:ffff8801bacfdfe0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: dffffc0000000000 RBX: 0000000000000286 RCX: ffffffff81b01bb4
RDX: 1ffffffff12a3f76 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801bacfe000 R08: ffff8801baeea080 R09: ffffed003b5e5b67
R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffff8801baeea080
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffffffffff
lock_is_held include/linux/lockdep.h:339 [inline]
list_lru_from_memcg_idx mm/list_lru.c:55 [inline]
list_lru_count_one+0x2fb/0x450 mm/list_lru.c:194
list_lru_shrink_count include/linux/list_lru.h:122 [inline]
super_cache_count+0x153/0x2e0 fs/super.c:144
do_shrink_slab+0x1b1/0xd30 mm/vmscan.c:465
shrink_slab+0x389/0x8c0 mm/vmscan.c:706
shrink_node+0x431/0x16b0 mm/vmscan.c:2758
shrink_zones mm/vmscan.c:2987 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3049
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3264
__perform_reclaim mm/page_alloc.c:3773 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3795 [inline]
__alloc_pages_slowpath+0xa14/0x2e10 mm/page_alloc.c:4196
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
alloc_pages include/linux/gfp.h:509 [inline]
__page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924
page_cache_read mm/filemap.c:2312 [inline]
filemap_fault+0x1595/0x25f0 mm/filemap.c:2496
ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291
__do_fault+0x100/0x6b0 mm/memory.c:2996
do_read_fault mm/memory.c:3408 [inline]
do_fault mm/memory.c:3534 [inline]
handle_pte_fault mm/memory.c:3765 [inline]
__handle_mm_fault+0x3ea0/0x5be0 mm/memory.c:3889
handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
__do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001fea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000162fa5d2 RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fca40
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000206 R12: 0000000000000001
R13: 00000000000000ff R14: 00007f71ee19c000 R15: 0000000000000010
Mem-Info:
CPU: 0 PID: 5978 Comm: rsyslogd Not tainted 4.20.0-rc1+ #145
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
active_anon:60454 inactive_anon:2622 isolated_anon:0
active_file:13 inactive_file:12 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:9394 slab_unreclaimable:1443968
mapped:49154 shmem:2676 pagetables:649 bounce:0
free:13770 free_pcp:132 free_cma:0
Call Trace:
Node 0 active_anon:241816kB inactive_anon:10488kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:10704kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 227328kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
lowmem_reserve[]: 0 2818 6321 6321
Node 0 DMA32 free:25204kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13968kB min:37364kB low:46704kB high:56044kB active_anon:241816kB inactive_anon:10488kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6848kB pagetables:2596kB bounce:0kB free_pcp:280kB local_pcp:32kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 5*4kB (UM) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25204kB
__alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
Node 0 Normal: 692*4kB (MEH) 406*8kB (UMEH) 193*16kB (MEH) 86*32kB (MEH) 27*64kB (UMH) 1*128kB (U) 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13968kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
2701 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342853 pages reserved
0 pages cma reserved
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
nlmsg_new include/net/netlink.h:654 [inline]
__br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292
br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:lock_is_held_type+0x18b/0x210 kernel/locking/lockdep.c:3884
Code: ff df 41 c7 84 24 7c 08 00 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 63 48 83 3d cc 1f f1 07 00 74 30 48 89 df 57 9d <0f> 1f 44 00 00 48 83 c4 08 44 89 e8 5b 41 5c 41 5d 5d c3 48 83 c4
RSP: 0000:ffff8801ae1ae5a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: dffffc0000000000 RBX: 0000000000000286 RCX: 0000000000000000
RDX: 1ffffffff12a3f76 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801ae1ae5c0 R08: ffff8801bea6c080 R09: ffffed003b5c5b67
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: ffff8801bea6c080
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffffffffffff
lock_is_held include/linux/lockdep.h:339 [inline]
rcu_read_lock_held+0xa9/0xc0 kernel/rcu/update.c:281
list_lru_from_memcg_idx mm/list_lru.c:55 [inline]
list_lru_count_one+0x31a/0x450 mm/list_lru.c:194
list_lru_shrink_count include/linux/list_lru.h:122 [inline]
super_cache_count+0x153/0x2e0 fs/super.c:144
do_shrink_slab+0x1b1/0xd30 mm/vmscan.c:465
shrink_slab+0x389/0x8c0 mm/vmscan.c:706
shrink_node+0x431/0x16b0 mm/vmscan.c:2758
shrink_zones mm/vmscan.c:2987 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3049
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3264
__perform_reclaim mm/page_alloc.c:3773 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3795 [inline]
__alloc_pages_slowpath+0xa14/0x2e10 mm/page_alloc.c:4196
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
__do_cache_alloc mm/slab.c:3356 [inline]
slab_alloc mm/slab.c:3384 [inline]
kmem_cache_alloc_trace+0x214/0x750 mm/slab.c:3618
kmalloc include/linux/slab.h:546 [inline]
syslog_print kernel/printk/printk.c:1301 [inline]
do_syslog+0xb9b/0x1690 kernel/printk/printk.c:1469
kmsg_read+0x8f/0xc0 fs/proc/kmsg.c:40
proc_reg_read+0x2a3/0x3d0 fs/proc/inode.c:231
__vfs_read+0x117/0x9b0 fs/read_write.c:416
vfs_read+0x17f/0x3c0 fs/read_write.c:452
ksys_read+0x101/0x260 fs/read_write.c:578
__do_sys_read fs/read_write.c:588 [inline]
__se_sys_read fs/read_write.c:586 [inline]
__x64_sys_read+0x73/0xb0 fs/read_write.c:586
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f126a43d1fd
Code: Bad RIP value.
RSP: 002b:00007f12679dce30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000d75ce0 RCX: 00007f126a43d1fd
RDX: 0000000000000fff RSI: 00007f12692115a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000d61260 R09: 0000000000000000
R10: 6b205d3134313735 R11: 0000000000000293 R12: 000000000065e420
R13: 00007f12679dd9c0 R14: 00007f126aa82040 R15: 0000000000000003
CPU: 1 PID: 6094 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #145
rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
rsyslogd cpuset=/ mems_allowed=0
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
__alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
nlmsg_new include/net/netlink.h:654 [inline]
__br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292
br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:lock_is_held_type+0x18b/0x210 kernel/locking/lockdep.c:3884
Code: ff df 41 c7 84 24 7c 08 00 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 63 48 83 3d cc 1f f1 07 00 74 30 48 89 df 57 9d <0f> 1f 44 00 00 48 83 c4 08 44 89 e8 5b 41 5c 41 5d 5d c3 48 83 c4
RSP: 0000:ffff8801bacfdfe0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: dffffc0000000000 RBX: 0000000000000286 RCX: ffffffff81b01bb4
RDX: 1ffffffff12a3f76 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801bacfe000 R08: ffff8801baeea080 R09: ffffed003b5e5b67
R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffff8801baeea080
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffffffffff
lock_is_held include/linux/lockdep.h:339 [inline]
list_lru_from_memcg_idx mm/list_lru.c:55 [inline]
list_lru_count_one+0x2fb/0x450 mm/list_lru.c:194
list_lru_shrink_count include/linux/list_lru.h:122 [inline]
super_cache_count+0x153/0x2e0 fs/super.c:144
do_shrink_slab+0x1b1/0xd30 mm/vmscan.c:465
shrink_slab+0x389/0x8c0 mm/vmscan.c:706
shrink_node+0x431/0x16b0 mm/vmscan.c:2758
shrink_zones mm/vmscan.c:2987 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3049
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3264
__perform_reclaim mm/page_alloc.c:3773 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3795 [inline]
__alloc_pages_slowpath+0xa14/0x2e10 mm/page_alloc.c:4196
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
alloc_pages include/linux/gfp.h:509 [inline]
__page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924
page_cache_read mm/filemap.c:2312 [inline]
filemap_fault+0x1595/0x25f0 mm/filemap.c:2496
ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6291
__do_fault+0x100/0x6b0 mm/memory.c:2996
do_read_fault mm/memory.c:3408 [inline]
do_fault mm/memory.c:3534 [inline]
handle_pte_fault mm/memory.c:3765 [inline]
__handle_mm_fault+0x3ea0/0x5be0 mm/memory.c:3889
handle_mm_fault+0x54f/0xc70 mm/memory.c:3926
do_user_addr_fault arch/x86/mm/fault.c:1423 [inline]
__do_page_fault+0x5e8/0xe60 arch/x86/mm/fault.c:1489
do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1139
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c42001fea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000162fa5d2 RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fca40
RBP: 000000c42001fee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c42001fed8 R11: 0000000000000206 R12: 0000000000000001
R13: 00000000000000ff R14: 00007f71ee19c000 R15: 0000000000000010
CPU: 0 PID: 5978 Comm: rsyslogd Not tainted 4.20.0-rc1+ #145
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
active_anon:60454 inactive_anon:2622 isolated_anon:0
active_file:13 inactive_file:12 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
slab_reclaimable:9394 slab_unreclaimable:1443968
mapped:49154 shmem:2676 pagetables:649 bounce:0
free:13770 free_pcp:132 free_cma:0
Call Trace:
Node 0 active_anon:241816kB inactive_anon:10488kB active_file:52kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:10704kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 227328kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
lowmem_reserve[]: 0 2818 6321 6321
Node 0 DMA32 free:25204kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
lowmem_reserve[]: 0 0 3503 3503
Node 0 Normal free:13968kB min:37364kB low:46704kB high:56044kB active_anon:241816kB inactive_anon:10488kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6848kB pagetables:2596kB bounce:0kB free_pcp:280kB local_pcp:32kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 5*4kB (UM) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25204kB
__alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
Node 0 Normal: 692*4kB (MEH) 406*8kB (UMEH) 193*16kB (MEH) 86*32kB (MEH) 27*64kB (UMH) 1*128kB (U) 1*256kB (H) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13968kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
2701 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342853 pages reserved
0 pages cma reserved
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
nlmsg_new include/net/netlink.h:654 [inline]
__br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292
br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:lock_is_held_type+0x18b/0x210 kernel/locking/lockdep.c:3884
Code: ff df 41 c7 84 24 7c 08 00 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 63 48 83 3d cc 1f f1 07 00 74 30 48 89 df 57 9d <0f> 1f 44 00 00 48 83 c4 08 44 89 e8 5b 41 5c 41 5d 5d c3 48 83 c4
RSP: 0000:ffff8801ae1ae5a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: dffffc0000000000 RBX: 0000000000000286 RCX: 0000000000000000
RDX: 1ffffffff12a3f76 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801ae1ae5c0 R08: ffff8801bea6c080 R09: ffffed003b5c5b67
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: ffff8801bea6c080
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffffffffffff
lock_is_held include/linux/lockdep.h:339 [inline]
rcu_read_lock_held+0xa9/0xc0 kernel/rcu/update.c:281
list_lru_from_memcg_idx mm/list_lru.c:55 [inline]
list_lru_count_one+0x31a/0x450 mm/list_lru.c:194
list_lru_shrink_count include/linux/list_lru.h:122 [inline]
super_cache_count+0x153/0x2e0 fs/super.c:144
do_shrink_slab+0x1b1/0xd30 mm/vmscan.c:465
shrink_slab+0x389/0x8c0 mm/vmscan.c:706
shrink_node+0x431/0x16b0 mm/vmscan.c:2758
shrink_zones mm/vmscan.c:2987 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3049
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3264
__perform_reclaim mm/page_alloc.c:3773 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3795 [inline]
__alloc_pages_slowpath+0xa14/0x2e10 mm/page_alloc.c:4196
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
__do_cache_alloc mm/slab.c:3356 [inline]
slab_alloc mm/slab.c:3384 [inline]
kmem_cache_alloc_trace+0x214/0x750 mm/slab.c:3618
kmalloc include/linux/slab.h:546 [inline]
syslog_print kernel/printk/printk.c:1301 [inline]
do_syslog+0xb9b/0x1690 kernel/printk/printk.c:1469
kmsg_read+0x8f/0xc0 fs/proc/kmsg.c:40
proc_reg_read+0x2a3/0x3d0 fs/proc/inode.c:231
__vfs_read+0x117/0x9b0 fs/read_write.c:416
vfs_read+0x17f/0x3c0 fs/read_write.c:452
ksys_read+0x101/0x260 fs/read_write.c:578
__do_sys_read fs/read_write.c:588 [inline]
__se_sys_read fs/read_write.c:586 [inline]
__x64_sys_read+0x73/0xb0 fs/read_write.c:586
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f126a43d1fd
Code: Bad RIP value.
RSP: 002b:00007f12679dce30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000d75ce0 RCX: 00007f126a43d1fd
RDX: 0000000000000fff RSI: 00007f12692115a0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000d61260 R09: 0000000000000000
R10: 6b205d3134313735 R11: 0000000000000293 R12: 000000000065e420
R13: 00007f12679dd9c0 R14: 00007f126aa82040 R15: 0000000000000003
CPU: 1 PID: 6094 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #145
rsyslogd: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
rsyslogd cpuset=/ mems_allowed=0
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x244/0x39d lib/dump_stack.c:113
warn_alloc.cold.116+0xb7/0x1bd mm/page_alloc.c:3423
__alloc_pages_slowpath+0x26e8/0x2e10 mm/page_alloc.c:4302
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
__alloc_pages include/linux/gfp.h:473 [inline]
__alloc_pages_node include/linux/gfp.h:486 [inline]
kmem_getpages mm/slab.c:1409 [inline]
cache_grow_begin+0xa5/0x8c0 mm/slab.c:2677
fallback_alloc+0x204/0x2e0 mm/slab.c:3219
____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
slab_alloc_node mm/slab.c:3327 [inline]
kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
__alloc_skb+0x119/0x770 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:997 [inline]
nlmsg_new include/net/netlink.h:654 [inline]
__br_mdb_notify+0x4ff/0x15d0 net/bridge/br_mdb.c:407
br_mdb_notify+0x310/0x410 net/bridge/br_mdb.c:440
br_multicast_del_pg+0x3df/0x790 net/bridge/br_multicast.c:292
br_multicast_port_group_expired+0x189/0x1e0 net/bridge/br_multicast.c:316
call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
expire_timers kernel/time/timer.c:1363 [inline]
__run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
__do_softirq+0x308/0xb7e kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x17f/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:804
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:761 [inline]
RIP: 0010:lock_is_held_type+0x18b/0x210 kernel/locking/lockdep.c:3884
Code: ff df 41 c7 84 24 7c 08 00 00 00 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 63 48 83 3d cc 1f f1 07 00 74 30 48 89 df 57 9d <0f> 1f 44 00 00 48 83 c4 08 44 89 e8 5b 41 5c 41 5d 5d c3 48 83 c4
RSP: 0000:ffff8801bacfdfe0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: dffffc0000000000 RBX: 0000000000000286 RCX: ffffffff81b01bb4
RDX: 1ffffffff12a3f76 RSI: 0000000000000000 RDI: 0000000000000286
RBP: ffff8801bacfe000 R08: ffff8801baeea080 R09: ffffed003b5e5b67
R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffff8801baeea080
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffffffffff
lock_is_held include/linux/lockdep.h:339 [inline]
list_lru_from_memcg_idx mm/list_lru.c:55 [inline]
list_lru_count_one+0x2fb/0x450 mm/list_lru.c:194
list_lru_shrink_count include/linux/list_lru.h:122 [inline]
super_cache_count+0x153/0x2e0 fs/super.c:144
do_shrink_slab+0x1b1/0xd30 mm/vmscan.c:465
shrink_slab+0x389/0x8c0 mm/vmscan.c:706
shrink_node+0x431/0x16b0 mm/vmscan.c:2758
shrink_zones mm/vmscan.c:2987 [inline]
do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3049
try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3264
__perform_reclaim mm/page_alloc.c:3773 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:3795 [inline]
__alloc_pages_slowpath+0xa14/0x2e10 mm/page_alloc.c:4196
__alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4395
alloc_pages_current+0x173/0x350 mm/mempolicy.c:2080
alloc_pages include/linux/gfp.h:509 [inline]
__page_cache_alloc+0x38c/0x5c0 mm/filemap.c:924