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INFO: rcu detected stall in call_timer_fn

Status: closed as dup on 2019/01/02 16:26
Subsystems: bpf net
[Documentation on labels]
Reported-by: syzbot+6703acd038e364329b7d@syzkaller.appspotmail.com
First crash: 2034d, last: 2021d
▶ ▼ Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
INFO: rcu detected stall in ndisc_alloc_skb net 1 2022d 1941d
▶ ▼ Similar bugs (7)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: rcu detected stall in call_timer_fn (2) 16 1267d 1541d 0/1 auto-closed as invalid on 2021/03/04 12:30
linux-4.14 INFO: rcu detected stall in call_timer_fn (2) 1 1330d 1330d 0/1 auto-closed as invalid on 2020/12/31 22:00
upstream INFO: rcu detected stall in call_timer_fn (2) kernel C done error 47 827d 1683d 0/26 closed as invalid on 2022/02/08 10:46
linux-4.19 INFO: rcu detected stall in call_timer_fn 1 1681d 1681d 0/1 auto-closed as invalid on 2020/01/15 18:43
linux-4.14 INFO: rcu detected stall in call_timer_fn 5 1454d 1574d 0/1 auto-closed as invalid on 2020/08/29 09:07
upstream INFO: rcu detected stall in call_timer_fn (4) mm 1 84d 84d 0/26 auto-obsoleted due to no activity on 2024/03/31 10:44
upstream INFO: rcu detected stall in call_timer_fn (3) kernel 3 566d 581d 0/26 auto-obsoleted due to no activity on 2023/01/12 18:45

Sample crash report:
R13: 000000c4274cc300 R14: 0000000000000001 R15: 0000000000000000
CPU: 0 PID: 12129 Comm: syz-executor1 Not tainted 4.19.0-rc5+ #61
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
rcu: 	0-...!: (63 ticks this GP) idle=ec2/1/0x4000000000000002 softirq=76059/76059 fqs=0 
rcu: 	(detected by 1, t=10502 jiffies, g=101581, q=1)
Sending NMI from CPU 1 to CPUs 0:
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
NMI backtrace for cpu 0
CPU: 0 PID: 12129 Comm: syz-executor1 Not tainted 4.19.0-rc5+ #61
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x15/0x20 kernel/kcov.c:174
Code: 00 48 89 e5 48 8b 4d 08 e8 c8 fe ff ff 5d c3 66 0f 1f 44 00 00 55 40 0f b6 d6 40 0f b6 f7 bf 01 00 00 00 48 89 e5 48 8b 4d 08 <e8> a6 fe ff ff 5d c3 0f 1f 40 00 55 0f b7 d6 0f b7 f7 bf 03 00 00
RSP: 0000:ffff8801dae061b8 EFLAGS: 00000086
RAX: dffffc0000000000 RBX: ffff8801dae062b9 RCX: ffffffff87ac29b7
RDX: 0000000000000031 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff8801dae061b8 R08: ffff8801d742a580 R09: ffffed003b5c0c58
R10: ffffed003b5c0c58 R11: ffff8801dae062c0 R12: ffffffff8ae9bb54
R13: ffffffffffffffed R14: 0000000000000031 R15: ffff8801dae062ba
FS:  00007fb27ba2a700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdbf1face40 CR3: 00000001c8890000 CR4: 00000000001406f0
DR0: 0000000020000340 DR1: 00000000200001c0 DR2: 0000000020000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 string+0x197/0x2d0 lib/vsprintf.c:605
 symbol_string+0x174/0x210 lib/vsprintf.c:700
 __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+0x91/0x8c0 mm/slab.c:2677
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
 pointer+0x6f4/0x990 lib/vsprintf.c:1879
 ____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
 vsnprintf+0x639/0x1b60 lib/vsprintf.c:2297
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 vscnprintf+0x2d/0x80 lib/vsprintf.c:2396
 vprintk_store+0x43/0x510 kernel/printk/printk.c:1847
 vprintk_emit+0x1c1/0x930 kernel/printk/printk.c:1905
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963
 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398
 alloc_skb include/linux/skbuff.h:995 [inline]
 new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67
 printk+0xa7/0xcf kernel/printk/printk.c:1996
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1374
 printk_stack_address arch/x86/kernel/dumpstack.c:71 [inline]
 show_trace_log_lvl+0x23a/0x28c arch/x86/kernel/dumpstack.c:258
 show_stack+0x38/0x3a arch/x86/kernel/dumpstack.c:293
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 __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+0x91/0x8c0 mm/slab.c:2677
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 ____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
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:995 [inline]
 new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1374
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline]
RIP: 0010:slab_alloc mm/slab.c:3385 [inline]
RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
Code: 7e 0f 85 cf fe ff ff e8 36 c1 3e ff e9 c5 fe ff ff e8 8d 04 c3 ff 48 83 3d 6d 35 70 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 9a 9e
RSP: 0000:ffff8801bae47748 EFLAGS: 00000286
 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffc9000426e000
RDX: 0000000000000004 RSI: ffffffff8184c1d4 RDI: 0000000000000286
RBP: ffff8801bae477b0 R08: ffff8801d742a580 R09: fffffbfff12811f4
R10: ffff8801bae46390 R11: ffffffff89408fa3 R12: 0000000000000000
R13: ffff8801d9be7c80 R14: ffff8801d9be7c80 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_d9cbba4354f274cf+0x325/0x1000
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline]
RIP: 0010:slab_alloc mm/slab.c:3385 [inline]
RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552
Code: 7e 0f 85 cf fe ff ff e8 36 c1 3e ff e9 c5 fe ff ff e8 8d 04 c3 ff 48 83 3d 6d 35 70 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 9a 9e
RSP: 0000:ffff8801bae47748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffc9000426e000
RDX: 0000000000000004 RSI: ffffffff8184c1d4 RDI: 0000000000000286
RBP: ffff8801bae477b0 R08: ffff8801d742a580 R09: fffffbfff12811f4
R10: ffff8801bae46390 R11: ffffffff89408fa3 R12: 0000000000000000
R13: ffff8801d9be7c80 R14: ffff8801d9be7c80 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280

Lost 50 message(s)!
rcu: rcu_preempt kthread starved for 10502 jiffies! g101581 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R
  running task    
22784    10      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2825 [inline]
 __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473
 schedule+0xfe/0x460 kernel/sched/core.c:3517
warn_alloc_show_mem: 1 callbacks suppressed
Mem-Info:
active_anon:43661 inactive_anon:1532 isolated_anon:0
 active_file:16 inactive_file:17 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9668 slab_unreclaimable:1479122
 mapped:40962 shmem:1539 pagetables:573 bounce:0
 free:13657 free_pcp:168 free_cma:0
Node 0 active_anon:174644kB inactive_anon:6128kB active_file:64kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:6156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 159744kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
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
lowmem_reserve[]:
 0 2819
 6323 6323
 rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194
Node 0 DMA32 free:25128kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0
 0
 3503
 3503
Node 0 Normal free:13592kB min:37352kB low:46688kB high:56024kB active_anon:174644kB inactive_anon:6128kB active_file:64kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5312kB pagetables:2292kB bounce:0kB free_pcp:672kB local_pcp:260kB 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: 
4*4kB 
(M) 
1*8kB (U) 3*16kB 
(UM) 
3*32kB (UM) 
4*64kB 
(M) 
3*128kB 
(M) 
3*256kB 
(M) 
4*512kB 
(UM) 
3*1024kB 
(UM) 
3*2048kB 
(M) 
3*4096kB 
(M) 
= 25128kB
Node 0 Normal: 
992*4kB 
(UME) 
425*8kB (UME) 
169*16kB (ME) 
86*32kB (UME) 12*64kB 
(UM) 0*128kB 0*256kB 
0*512kB 
0*1024kB 
0*2048kB 
0*4096kB 
= 13592kB
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
1572 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
 kthread+0x35a/0x420 kernel/kthread.c:246
342307 pages reserved
0 pages cma reserved
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.644 msecs
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
aoe: skb alloc failure
syz-executor1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor1 cpuset=
syz-fuzzer cpuset=
syz1 mems_allowed=0
/ mems_allowed=0
CPU: 0 PID: 12129 Comm: syz-executor1 Not tainted 4.19.0-rc5+ #61
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 __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+0x91/0x8c0 mm/slab.c:2677
 fallback_alloc+0x203/0x2e0 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:995 [inline]
 new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1374
 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24
 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+0x30b/0xad8 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline]
RIP: 0010:slab_alloc mm/slab.c:3385 [inline]
RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552
Code: 7e 0f 85 cf fe ff ff e8 36 c1 3e ff e9 c5 fe ff ff e8 8d 04 c3 ff 48 83 3d 6d 35 70 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 9a 9e
RSP: 0000:ffff8801bae47748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffc9000426e000
RDX: 0000000000000004 RSI: ffffffff8184c1d4 RDI: 0000000000000286
RBP: ffff8801bae477b0 R08: ffff8801d742a580 R09: fffffbfff12811f4
R10: ffff8801bae46390 R11: ffffffff89408fa3 R12: 0000000000000000
R13: ffff8801d9be7c80 R14: ffff8801d9be7c80 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_d9cbba4354f274cf+0x325/0x1000
CPU: 1 PID: 5828 Comm: syz-fuzzer Not tainted 4.19.0-rc5+ #61
aoe: skb alloc failure
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
syz-executor1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor1 cpuset=
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
syz1
 mems_allowed=0
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 __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+0x91/0x8c0 mm/slab.c:2677
 fallback_alloc+0x203/0x2e0 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:995 [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:3819
 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+0x30b/0xad8 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline]
RIP: 0010:console_unlock+0xfdf/0x1160 kernel/printk/printk.c:2409
Code: c1 e8 03 42 80 3c 20 00 0f 85 d1 00 00 00 48 83 3d 5d 74 cd 07 00 0f 84 bc 00 00 00 e8 ca 37 1a 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 cc f9 ff ff 48 8b bd c8 fe ff ff e8 1b 97 5d 00
RSP: 0000:ffff8801d7d654c8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801d7d6e640 RBX: 0000000000000200 RCX: ffffffff8184c1ba
RDX: 0000000000000000 RSI: ffffffff81647db6 RDI: 0000000000000293
RBP: ffff8801d7d65630 R08: ffff8801d7d6e640 R09: fffffbfff12720b0
R10: fffffbfff12720b0 R11: ffffffff89390583 R12: dffffc0000000000
R13: ffffffff8487f1f0 R14: dffffc0000000000 R15: ffffffff899424f0
 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1922
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963
 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398
 printk+0xa7/0xcf kernel/printk/printk.c:1996
 show_migration_types mm/page_alloc.c:4841 [inline]
 show_free_areas.cold.120+0x1f34/0x215d mm/page_alloc.c:5031
 show_mem+0x34/0x17b lib/show_mem.c:18
 dump_header+0x2f1/0xf72 mm/oom_kill.c:445
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946
 page_cache_read mm/filemap.c:2385 [inline]
 filemap_fault+0x1594/0x25f0 mm/filemap.c:2569
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259
 __do_fault+0x100/0x6b0 mm/memory.c:3240
 do_read_fault mm/memory.c:3652 [inline]
 do_fault mm/memory.c:3752 [inline]
 handle_pte_fault mm/memory.c:3983 [inline]
 __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107
 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144
 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c4200236a0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 000000003b98ab82 RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd980
RBP: 000000c4200236e8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c4200236d8 R11: 0000000000000206 R12: 0000000000000001
R13: 000000c4274cc300 R14: 0000000000000001 R15: 0000000000000000
CPU: 0 PID: 12129 Comm: syz-executor1 Not tainted 4.19.0-rc5+ #61
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
/
 mems_allowed=0
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 __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+0x91/0x8c0 mm/slab.c:2677
 fallback_alloc+0x203/0x2e0 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:995 [inline]
 new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1374
 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24
 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+0x30b/0xad8 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline]
RIP: 0010:slab_alloc mm/slab.c:3385 [inline]
RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552
Code: 7e 0f 85 cf fe ff ff e8 36 c1 3e ff e9 c5 fe ff ff e8 8d 04 c3 ff 48 83 3d 6d 35 70 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 9a 9e
RSP: 0000:ffff8801bae47748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffc9000426e000
RDX: 0000000000000004 RSI: ffffffff8184c1d4 RDI: 0000000000000286
RBP: ffff8801bae477b0 R08: ffff8801d742a580 R09: fffffbfff12811f4
R10: ffff8801bae46390 R11: ffffffff89408fa3 R12: 0000000000000000
R13: ffff8801d9be7c80 R14: ffff8801d9be7c80 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_d9cbba4354f274cf+0x325/0x1000
warn_alloc_show_mem: 2 callbacks suppressed
CPU: 1 PID: 5828 Comm: syz-fuzzer Not tainted 4.19.0-rc5+ #61
Mem-Info:
active_anon:43661 inactive_anon:1532 isolated_anon:0
 active_file:16 inactive_file:17 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9668 slab_unreclaimable:1479122
 mapped:40962 shmem:1539 pagetables:573 bounce:0
 free:13657 free_pcp:168 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:174644kB inactive_anon:6128kB active_file:64kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:6156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 159744kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 
 <IRQ>
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+0x1c4/0x2b4 lib/dump_stack.c:113
lowmem_reserve[]:
 0 2819
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 6323
 6323
Node 0 
DMA32 free:25128kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
lowmem_reserve[]:
 0
 0
 3503
 3503
Node 0 
Normal free:13592kB min:37352kB low:46688kB high:56024kB active_anon:174644kB inactive_anon:6128kB active_file:64kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5312kB pagetables:2292kB bounce:0kB free_pcp:672kB local_pcp:260kB 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 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
(U) 
0*512kB 
1*1024kB 
(U) 
1*2048kB 
(M) 
 __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+0x91/0x8c0 mm/slab.c:2677
3*4096kB 
(M) 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
= 15908kB
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
Node 0 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
DMA32: 
4*4kB 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
(M) 
1*8kB 
(U) 
3*16kB 
(UM) 
3*32kB 
(UM) 
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
4*64kB 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
(M) 
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3819
3*128kB 
(M) 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
3*256kB 
(M) 4*512kB 
(UM) 
3*1024kB 
(UM) 
3*2048kB 
(M) 
3*4096kB 
(M) 
= 25128kB
Node 0 
Normal: 
992*4kB 
(UME) 
425*8kB 
(UME) 
169*16kB 
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
(ME) 
86*32kB 
(UME) 
12*64kB 
(UM) 
0*128kB 
0*256kB 
0*512kB 
0*1024kB 
0*2048kB 
0*4096kB 
= 13592kB
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
1572 total pagecache pages
 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1695
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
 __do_softirq+0x30b/0xad8 kernel/softirq.c:292
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
342307 pages reserved
0 pages cma reserved
aoe: skb alloc failure
syz-executor1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-executor1 cpuset=
syz1
 mems_allowed=0
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline]
RIP: 0010:console_unlock+0xfdf/0x1160 kernel/printk/printk.c:2409
Code: c1 e8 03 42 80 3c 20 00 0f 85 d1 00 00 00 48 83 3d 5d 74 cd 07 00 0f 84 bc 00 00 00 e8 ca 37 1a 00 48 8b bd b0 fe ff ff 57 9d <0f> 1f 44 00 00 e9 cc f9 ff ff 48 8b bd c8 fe ff ff e8 1b 97 5d 00
RSP: 0000:ffff8801d7d654c8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8801d7d6e640 RBX: 0000000000000200 RCX: ffffffff8184c1ba
RDX: 0000000000000000 RSI: ffffffff81647db6 RDI: 0000000000000293
RBP: ffff8801d7d65630 R08: ffff8801d7d6e640 R09: fffffbfff12720b0
R10: fffffbfff12720b0 R11: ffffffff89390583 R12: dffffc0000000000
R13: ffffffff8487f1f0 R14: dffffc0000000000 R15: ffffffff899424f0
 vprintk_emit+0x33d/0x930 kernel/printk/printk.c:1922
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963
 vprintk_func+0x7e/0x181 kernel/printk/printk_safe.c:398
 printk+0xa7/0xcf kernel/printk/printk.c:1996
 show_migration_types mm/page_alloc.c:4841 [inline]
 show_free_areas.cold.120+0x1f34/0x215d mm/page_alloc.c:5031
 show_mem+0x34/0x17b lib/show_mem.c:18
 dump_header+0x2f1/0xf72 mm/oom_kill.c:445
 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953
 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120
 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline]
 __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093
 alloc_pages include/linux/gfp.h:509 [inline]
 __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946
 page_cache_read mm/filemap.c:2385 [inline]
 filemap_fault+0x1594/0x25f0 mm/filemap.c:2569
 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259
 __do_fault+0x100/0x6b0 mm/memory.c:3240
 do_read_fault mm/memory.c:3652 [inline]
 do_fault mm/memory.c:3752 [inline]
 handle_pte_fault mm/memory.c:3983 [inline]
 __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107
 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144
 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161
RIP: 0033:0x45ddf3
Code: Bad RIP value.
RSP: 002b:000000c4200236a0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 000000003b98ab82 RCX: 000000000045ddf3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014cd980
RBP: 000000c4200236e8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c4200236d8 R11: 0000000000000206 R12: 0000000000000001
R13: 000000c4274cc300 R14: 0000000000000001 R15: 0000000000000000
CPU: 0 PID: 12129 Comm: syz-executor1 Not tainted 4.19.0-rc5+ #61
ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
syz-fuzzer cpuset=
/
 mems_allowed=0
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
 __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+0x91/0x8c0 mm/slab.c:2677
 fallback_alloc+0x203/0x2e0 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:995 [inline]
 new_skb+0x26/0x1c0 drivers/block/aoe/aoecmd.c:67
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x279/0x7f0 drivers/block/aoe/aoecmd.c:1374
 discover_timer+0x50/0x60 drivers/block/aoe/aoemain.c:24
 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+0x30b/0xad8 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x17f/0x1c0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1056
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:864
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline]
RIP: 0010:slab_alloc mm/slab.c:3385 [inline]
RIP: 0010:kmem_cache_alloc+0x297/0x730 mm/slab.c:3552
Code: 7e 0f 85 cf fe ff ff e8 36 c1 3e ff e9 c5 fe ff ff e8 8d 04 c3 ff 48 83 3d 6d 35 70 07 00 0f 84 3b 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 9a 9e
RSP: 0000:ffff8801bae47748 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000480020 RCX: ffffc9000426e000
RDX: 0000000000000004 RSI: ffffffff8184c1d4 RDI: 0000000000000286
RBP: ffff8801bae477b0 R08: ffff8801d742a580 R09: fffffbfff12811f4
R10: ffff8801bae46390 R11: ffffffff89408fa3 R12: 0000000000000000
R13: ffff8801d9be7c80 R14: ffff8801d9be7c80 R15: 0000000000480020
 skb_clone+0x1bb/0x500 net/core/skbuff.c:1280
 ____bpf_clone_redirect net/core/filter.c:2075 [inline]
 bpf_clone_redirect+0xb9/0x490 net/core/filter.c:2062
 bpf_prog_d9cbba4354f274cf+0x325/0x1000
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 5828 Comm: syz-fuzzer Not tainted 4.19.0-rc5+ #61
Mem-Info:
active_anon:43661 inactive_anon:1532 isolated_anon:0
 active_file:16 inactive_file:17 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:9668 slab_unreclaimable:1479122
 mapped:40962 shmem:1539 pagetables:573 bounce:0
 free:13657 free_pcp:168 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:174644kB inactive_anon:6128kB active_file:64kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:6156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 159744kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 
 <IRQ>
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+0x1c4/0x2b4 lib/dump_stack.c:113
lowmem_reserve[]:
 0
 warn_alloc.cold.119+0xb7/0x1bd mm/page_alloc.c:3426
 2819
 6323
 6323
Node 0 
 __alloc_pages_slowpath+0x2667/0x2d80 mm/page_alloc.c:4297
DMA32 free:25128kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]:
 0
 0 3503
 3503
Node 0 
Normal free:13592kB min:37352kB low:46688kB high:56024kB active_anon:174644kB inactive_anon:6128kB active_file:64kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5312kB pagetables:2292kB bounce:0kB free_pcp:672kB local_pcp:260kB 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) 
 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390
= 15908kB
Node 0 
DMA32: 
4*4kB 
(M) 
1*8kB 
 __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+0x91/0x8c0 mm/slab.c:2677
(U) 
3*16kB 
 fallback_alloc+0x203/0x2e0 mm/slab.c:3219
(UM) 
 ____cache_alloc_node+0x1c7/0x1e0 mm/slab.c:3287
3*32kB 
 slab_alloc_node mm/slab.c:3327 [inline]
 kmem_cache_alloc_node+0xe3/0x730 mm/slab.c:3642
(UM) 
4*64kB 
 __alloc_skb+0x119/0x770 net/core/skbuff.c:193
(M) 
3*128kB 
(M) 
3*256kB 
(M) 
4*512kB 
(UM) 
 alloc_skb include/linux/skbuff.h:995 [inline]
 ndisc_alloc_skb+0x144/0x340 net/ipv6/ndisc.c:403
3*1024kB 
 ndisc_send_rs+0x331/0x6e0 net/ipv6/ndisc.c:669
(UM) 
 addrconf_rs_timer+0x314/0x690 net/ipv6/addrconf.c:3819
3*2048kB 
(M) 
 call_timer_fn+0x272/0x920 kernel/time/timer.c:1326
3*4096kB 
(M) 
= 25128kB
Node 0 
Normal: 
992*4kB 
(UME) 
425*8kB 
(UME) 
169*16kB 
(ME) 
86*32kB 
(UME) 
12*64kB 
(UM) 0*128kB 
0*256kB 
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x7e5/0xc70 kernel/time/timer.c:1682
0*512kB 
0*1024kB 
0*2048kB 
0*4096kB 
= 13592kB
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
1572 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

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/09/29 14:54 bpf 4288ea006c73 41e4b329 .config console log report ci-upstream-bpf-kasan-gce
2018/10/13 06:54 bpf-next 1ae80cf31938 caf12900 .config console log report ci-upstream-bpf-next-kasan-gce
* Struck through repros no longer work on HEAD.