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INFO: rcu detected stall in ext4_filemap_fault

Status: auto-closed as invalid on 2020/05/18 19:50
Reported-by: syzbot+e3f105362fafe8d06738@syzkaller.appspotmail.com
First crash: 1709d, last: 1558d
▶ ▼ Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: rcu detected stall in ext4_filemap_fault (3) 2 715d 745d 0/1 auto-obsoleted due to no activity on 2022/09/09 17:56
linux-4.19 INFO: rcu detected stall in ext4_filemap_fault (2) 1 1370d 1370d 0/1 auto-closed as invalid on 2020/11/23 02:32
android-49 INFO: rcu detected stall in ext4_filemap_fault C 1 1689d 1689d 0/3 public: reported C repro on 2019/09/11 03:52
upstream INFO: rcu detected stall in ext4_filemap_fault mm 109 1880d 2051d 0/26 closed as dup on 2019/01/02 16:36
android-414 INFO: rcu detected stall in ext4_filemap_fault 1 1949d 1843d 0/1 auto-closed as invalid on 2019/06/22 22:11
linux-4.14 INFO: rcu detected stall in ext4_filemap_fault 1 1612d 1612d 0/1 auto-closed as invalid on 2020/03/25 22:24
upstream INFO: rcu detected stall in ext4_filemap_fault (2) cgroups 1 1655d 1654d 0/26 auto-closed as invalid on 2020/01/13 18:23
android-414 INFO: rcu detected stall in ext4_filemap_fault (2) 2 1608d 1653d 0/1 auto-closed as invalid on 2020/03/30 02:23

Sample crash report:
 run_ksoftirqd kernel/softirq.c:653 [inline]
 run_ksoftirqd+0x8e/0x110 kernel/softirq.c:645
 smpboot_thread_fn+0x6a3/0xa30 kernel/smpboot.c:164
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
CPU: 0 PID: 8141 Comm: syz-fuzzer Not tainted 4.19.97-syzkaller #0
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
rcu: 	0-...!: (1 GPs behind) idle=b5a/1/0x4000000000000002 softirq=428869/428870 fqs=7 
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
rcu: 	(detected by 1, t=10590 jiffies, g=460593, q=0)
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
Sending NMI from CPU 1 to CPUs 0:
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc+0x1f3/0x700 mm/slab.c:3557
NMI backtrace for cpu 0
CPU: 0 PID: 8141 Comm: syz-fuzzer Not tainted 4.19.97-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:number+0x55e/0xc70 lib/vsprintf.c:476
Code: b9 00 00 00 00 00 fc ff df 48 c1 e8 03 83 e2 07 0f b6 04 08 38 d0 7f 08 84 c0 0f 85 e6 06 00 00 41 c6 04 24 20 e8 62 1b 1a fa <83> eb 01 31 ff 49 83 c4 01 89 de e8 d2 1c 1a fa 83 fb ff 75 ab 8b
RSP: 0000:ffff8880ae806f48 EFLAGS: 00000006
RAX: ffff88808d522180 RBX: 0000000000000000 RCX: ffffffff8750fa08
RDX: 0000000000000100 RSI: ffffffff8750fa5e RDI: 0000000000000005
RBP: ffff8880ae807070 R08: ffff88808d522180 R09: fffffbfff11f1711
R10: fffffbfff11f1710 R11: ffffffff88f8b883 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
FS:  000000c42013a090(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000045b129 CR3: 0000000097f62000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 vsnprintf+0x26b/0x19a0 lib/vsprintf.c:2359
 snprintf+0xbb/0xf0 lib/vsprintf.c:2426
 print_time kernel/printk/printk.c:1234 [inline]
 print_prefix+0x284/0x3f0 kernel/printk/printk.c:1259
 msg_print_text+0x83/0x1c0 kernel/printk/printk.c:1282
 console_unlock+0x3a5/0x10d0 kernel/printk/printk.c:2403
 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1937
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979
 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
 printk+0xba/0xed kernel/printk/printk.c:2012
 printk_stack_address arch/x86/kernel/dumpstack.c:71 [inline]
 show_trace_log_lvl+0x23a/0x28c arch/x86/kernel/dumpstack.c:258
 show_stack+0x39/0x3b arch/x86/kernel/dumpstack.c:293
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc+0x1f3/0x700 mm/slab.c:3557
 __build_skb+0x3e/0x310 net/core/skbuff.c:281
 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:426
 netdev_alloc_skb include/linux/skbuff.h:2663 [inline]
 dev_alloc_skb include/linux/skbuff.h:2676 [inline]
 send_hsr_supervision_frame+0x110/0xfc0 net/hsr/hsr_device.c:265
 hsr_announce+0x12f/0x3b0 net/hsr/hsr_device.c:350
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x180/0x1d0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:console_unlock+0xf3c/0x10d0 kernel/printk/printk.c:2433
Code: fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 cb 00 00 00 48 83 3d 5d 2d 9d 07 00 0f 84 b6 00 00 00 e8 4a e7 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 15 f9 ff ff 48 8b 7d b0 e8 b1 7f 4d 00 e9 9b f3
RSP: 0000:ffff88809438f278 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff88808d522180 RBX: 0000000000000200 RCX: 1ffff11011aa4553
RDX: 0000000000000000 RSI: ffffffff81552e76 RDI: 0000000000000293
RBP: ffff88809438f300 R08: ffff88808d522180 R09: ffff88808d522a98
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8469e970 R14: 0000000000000056 R15: ffffffff896624b0
 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1937
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979
 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
 printk+0xba/0xed kernel/printk/printk.c:2012
 dump_unreclaimable_slab.cold+0xde/0xef mm/slab_common.c:1371
 dump_header+0x44b/0xa55 mm/oom_kill.c:447
 oom_kill_process.cold+0x10/0x6ef mm/oom_kill.c:954
 out_of_memory mm/oom_kill.c:1130 [inline]
 out_of_memory+0x362/0x1330 mm/oom_kill.c:1062
 __alloc_pages_may_oom mm/page_alloc.c:3551 [inline]
 __alloc_pages_slowpath+0x20b5/0x2870 mm/page_alloc.c:4253
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2197
 alloc_pages include/linux/gfp.h:532 [inline]
 __page_cache_alloc mm/filemap.c:969 [inline]
 __page_cache_alloc+0x2bd/0x450 mm/filemap.c:954
 page_cache_read mm/filemap.c:2408 [inline]
 filemap_fault+0xfeb/0x1f00 mm/filemap.c:2592
 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6353
 __do_fault+0x111/0x480 mm/memory.c:3269
 do_read_fault mm/memory.c:3681 [inline]
 do_fault mm/memory.c:3810 [inline]
 handle_pte_fault mm/memory.c:4041 [inline]
 __handle_mm_fault+0x2d78/0x3f80 mm/memory.c:4165
 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202
 __do_page_fault+0x62a/0xe90 arch/x86/mm/fault.c:1390
 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1465
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1204
RIP: 0033:0x45b153
Code: Bad RIP value.
RSP: 002b:000000c420039ea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000381cf821 RCX: 000000000045b153
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001dee2a0
RBP: 000000c420039ee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420039ed8 R11: 0000000000000206 R12: 0000029c09c28884
R13: 0000000000000001 R14: 000000c432a9e480 R15: 0000000000000001
rcu: rcu_preempt kthread starved for 9080 jiffies! g460593 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R  running task    29104    10      2 0x80000000
Call Trace:
 __build_skb+0x3e/0x310 net/core/skbuff.c:281
 context_switch kernel/sched/core.c:2826 [inline]
 __schedule+0x866/0x1dc0 kernel/sched/core.c:3515
 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:426
 netdev_alloc_skb include/linux/skbuff.h:2663 [inline]
 dev_alloc_skb include/linux/skbuff.h:2676 [inline]
 send_hsr_supervision_frame+0x110/0xfc0 net/hsr/hsr_device.c:265
 hsr_announce+0x12f/0x3b0 net/hsr/hsr_device.c:350
 schedule+0x92/0x1c0 kernel/sched/core.c:3559
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 schedule_timeout+0x4db/0xfc0 kernel/time/timer.c:1806
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 rcu_gp_kthread+0xd5c/0x2190 kernel/rcu/tree.c:2202
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x180/0x1d0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
 kthread+0x354/0x420 kernel/kthread.c:246
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
 </IRQ>
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:console_unlock+0xf3c/0x10d0 kernel/printk/printk.c:2433
aoe: skb alloc failure
Code: fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 cb 00 00 00 48 83 3d 5d 2d 9d 07 00 0f 84 b6 00 00 00 e8 4a e7 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 15 f9 ff ff 48 8b 7d b0 e8 b1 7f 4d 00 e9 9b f3
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
RSP: 0000:ffff88809438f278 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
ksoftirqd/1 cpuset=/ mems_allowed=0-1
RAX: ffff88808d522180 RBX: 0000000000000200 RCX: 1ffff11011aa4553
RDX: 0000000000000000 RSI: ffffffff81552e76 RDI: 0000000000000293
RBP: ffff88809438f300 R08: ffff88808d522180 R09: ffff88808d522a98
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8469e970 R14: 0000000000000056 R15: ffffffff896624b0
 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1937
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979
 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
 printk+0xba/0xed kernel/printk/printk.c:2012
 dump_unreclaimable_slab.cold+0xde/0xef mm/slab_common.c:1371
 dump_header+0x44b/0xa55 mm/oom_kill.c:447
 oom_kill_process.cold+0x10/0x6ef mm/oom_kill.c:954
 out_of_memory mm/oom_kill.c:1130 [inline]
 out_of_memory+0x362/0x1330 mm/oom_kill.c:1062
 __alloc_pages_may_oom mm/page_alloc.c:3551 [inline]
 __alloc_pages_slowpath+0x20b5/0x2870 mm/page_alloc.c:4253
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2197
 alloc_pages include/linux/gfp.h:532 [inline]
 __page_cache_alloc mm/filemap.c:969 [inline]
 __page_cache_alloc+0x2bd/0x450 mm/filemap.c:954
 page_cache_read mm/filemap.c:2408 [inline]
 filemap_fault+0xfeb/0x1f00 mm/filemap.c:2592
 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6353
 __do_fault+0x111/0x480 mm/memory.c:3269
 do_read_fault mm/memory.c:3681 [inline]
 do_fault mm/memory.c:3810 [inline]
 handle_pte_fault mm/memory.c:4041 [inline]
 __handle_mm_fault+0x2d78/0x3f80 mm/memory.c:4165
 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202
 __do_page_fault+0x62a/0xe90 arch/x86/mm/fault.c:1390
 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1465
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1204
RIP: 0033:0x45b153
Code: Bad RIP value.
RSP: 002b:000000c420039ea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000381cf821 RCX: 000000000045b153
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001dee2a0
RBP: 000000c420039ee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420039ed8 R11: 0000000000000206 R12: 0000029c09c28884
R13: 0000000000000001 R14: 000000c432a9e480 R15: 0000000000000001
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.97-syzkaller #0
Mem-Info:
active_anon:210648 inactive_anon:209 isolated_anon:0
 active_file:40 inactive_file:0 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:13971 slab_unreclaimable:1287598
 mapped:52226 shmem:254 pagetables:3160 bounce:0
 free:10875 free_pcp:232 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
Node 0 active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208904kB dirty:0kB writeback:0kB shmem:1016kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 294912kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Node 1 active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
Node 0 DMA free:10256kB min:220kB low:272kB high:324kB 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
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
lowmem_reserve[]: 0 2545 2546 2546 2546
Node 0 DMA32 free:13324kB min:36168kB low:45208kB high:54248kB active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2609804kB mlocked:0kB kernel_stack:10208kB pagetables:12640kB bounce:0kB free_pcp:516kB local_pcp:388kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:0kB min:12kB low:12kB high:12kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:1140kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
Node 1 Normal free:19920kB min:53704kB low:67128kB high:80552kB active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870168kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:412kB local_pcp:164kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10256kB
Node 0 DMA32: 1891*4kB (UME) 312*8kB (ME) 14*16kB (UM) 29*32kB (M) 5*64kB (M) 4*128kB (UM) 1*256kB (M) 2*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 13324kB
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
Node 1 Normal: 4*4kB (UE) 2*8kB (ME) 3*16kB (ME) 2*32kB (UE) 3*64kB (UME) 3*128kB (UME) 1*256kB (M) 3*512kB (ME) 3*1024kB (UM) 1*2048kB (U) 3*4096kB (M) = 19920kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
282 total pagecache pages
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
0 pages in swap cache
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
Swap cache stats: add 0, delete 0, find 0/0
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3647
Free swap  = 0kB
Total swap = 0kB
 __alloc_skb+0xd5/0x5f0 net/core/skbuff.c:193
1965979 pages RAM
0 pages HighMem/MovableOnly
341724 pages reserved
0 pages cma reserved
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.585 msecs
 alloc_skb include/linux/skbuff.h:995 [inline]
 new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x1b5/0x640 drivers/block/aoe/aoecmd.c:1374
syz-fuzzer cpuset=/ mems_allowed=0-1
 discover_timer+0x4e/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 run_ksoftirqd kernel/softirq.c:653 [inline]
 run_ksoftirqd+0x8e/0x110 kernel/softirq.c:645
 smpboot_thread_fn+0x6a3/0xa30 kernel/smpboot.c:164
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
CPU: 0 PID: 8141 Comm: syz-fuzzer Not tainted 4.19.97-syzkaller #0
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+0x197/0x210 lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/1 cpuset=/ mems_allowed=0-1
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc+0x1f3/0x700 mm/slab.c:3557
 __build_skb+0x3e/0x310 net/core/skbuff.c:281
 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:426
 netdev_alloc_skb include/linux/skbuff.h:2663 [inline]
 dev_alloc_skb include/linux/skbuff.h:2676 [inline]
 send_hsr_supervision_frame+0x110/0xfc0 net/hsr/hsr_device.c:265
 hsr_announce+0x12f/0x3b0 net/hsr/hsr_device.c:350
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x180/0x1d0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:console_unlock+0xf3c/0x10d0 kernel/printk/printk.c:2433
Code: fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 cb 00 00 00 48 83 3d 5d 2d 9d 07 00 0f 84 b6 00 00 00 e8 4a e7 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 15 f9 ff ff 48 8b 7d b0 e8 b1 7f 4d 00 e9 9b f3
RSP: 0000:ffff88809438f278 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff88808d522180 RBX: 0000000000000200 RCX: 1ffff11011aa4553
RDX: 0000000000000000 RSI: ffffffff81552e76 RDI: 0000000000000293
RBP: ffff88809438f300 R08: ffff88808d522180 R09: ffff88808d522a98
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8469e970 R14: 0000000000000056 R15: ffffffff896624b0
 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1937
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979
 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
 printk+0xba/0xed kernel/printk/printk.c:2012
 dump_unreclaimable_slab.cold+0xde/0xef mm/slab_common.c:1371
 dump_header+0x44b/0xa55 mm/oom_kill.c:447
 oom_kill_process.cold+0x10/0x6ef mm/oom_kill.c:954
 out_of_memory mm/oom_kill.c:1130 [inline]
 out_of_memory+0x362/0x1330 mm/oom_kill.c:1062
 __alloc_pages_may_oom mm/page_alloc.c:3551 [inline]
 __alloc_pages_slowpath+0x20b5/0x2870 mm/page_alloc.c:4253
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2197
 alloc_pages include/linux/gfp.h:532 [inline]
 __page_cache_alloc mm/filemap.c:969 [inline]
 __page_cache_alloc+0x2bd/0x450 mm/filemap.c:954
 page_cache_read mm/filemap.c:2408 [inline]
 filemap_fault+0xfeb/0x1f00 mm/filemap.c:2592
 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6353
 __do_fault+0x111/0x480 mm/memory.c:3269
 do_read_fault mm/memory.c:3681 [inline]
 do_fault mm/memory.c:3810 [inline]
 handle_pte_fault mm/memory.c:4041 [inline]
 __handle_mm_fault+0x2d78/0x3f80 mm/memory.c:4165
 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202
 __do_page_fault+0x62a/0xe90 arch/x86/mm/fault.c:1390
 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1465
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1204
RIP: 0033:0x45b153
Code: Bad RIP value.
RSP: 002b:000000c420039ea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000381cf821 RCX: 000000000045b153
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001dee2a0
RBP: 000000c420039ee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420039ed8 R11: 0000000000000206 R12: 0000029c09c28884
R13: 0000000000000001 R14: 000000c432a9e480 R15: 0000000000000001
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.97-syzkaller #0
Mem-Info:
active_anon:210648 inactive_anon:209 isolated_anon:0
 active_file:40 inactive_file:0 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:13971 slab_unreclaimable:1287598
 mapped:52226 shmem:254 pagetables:3160 bounce:0
 free:10875 free_pcp:232 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208904kB dirty:0kB writeback:0kB shmem:1016kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 294912kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 1 active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
Node 0 DMA free:10256kB min:220kB low:272kB high:324kB 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
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
lowmem_reserve[]: 0 2545 2546 2546 2546
Node 0 DMA32 free:13324kB min:36168kB low:45208kB high:54248kB active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2609804kB mlocked:0kB kernel_stack:10208kB pagetables:12640kB bounce:0kB free_pcp:516kB local_pcp:388kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:0kB min:12kB low:12kB high:12kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:1140kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
Node 1 Normal free:19920kB min:53704kB low:67128kB high:80552kB active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870168kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:412kB local_pcp:164kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10256kB
Node 0 DMA32: 1891*4kB (UME) 312*8kB (ME) 14*16kB (UM) 29*32kB (M) 5*64kB (M) 4*128kB (UM) 1*256kB (M) 2*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 13324kB
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
Node 1 Normal: 4*4kB (UE) 2*8kB (ME) 3*16kB (ME) 2*32kB (UE) 3*64kB (UME) 3*128kB (UME) 1*256kB (M) 3*512kB (ME) 3*1024kB (UM) 1*2048kB (U) 3*4096kB (M) = 19920kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
282 total pagecache pages
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
0 pages in swap cache
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3647
Swap cache stats: add 0, delete 0, find 0/0
 __alloc_skb+0xd5/0x5f0 net/core/skbuff.c:193
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
341724 pages reserved
0 pages cma reserved
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 alloc_skb include/linux/skbuff.h:995 [inline]
 new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67
syz-fuzzer cpuset=/ mems_allowed=0-1
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x1b5/0x640 drivers/block/aoe/aoecmd.c:1374
 discover_timer+0x4e/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 run_ksoftirqd kernel/softirq.c:653 [inline]
 run_ksoftirqd+0x8e/0x110 kernel/softirq.c:645
 smpboot_thread_fn+0x6a3/0xa30 kernel/smpboot.c:164
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
CPU: 0 PID: 8141 Comm: syz-fuzzer Not tainted 4.19.97-syzkaller #0
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+0x197/0x210 lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/1 cpuset=/ mems_allowed=0-1
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc+0x1f3/0x700 mm/slab.c:3557
 __build_skb+0x3e/0x310 net/core/skbuff.c:281
 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:426
 netdev_alloc_skb include/linux/skbuff.h:2663 [inline]
 dev_alloc_skb include/linux/skbuff.h:2676 [inline]
 send_hsr_supervision_frame+0x110/0xfc0 net/hsr/hsr_device.c:265
 hsr_announce+0x12f/0x3b0 net/hsr/hsr_device.c:350
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x180/0x1d0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:console_unlock+0xf3c/0x10d0 kernel/printk/printk.c:2433
Code: fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 cb 00 00 00 48 83 3d 5d 2d 9d 07 00 0f 84 b6 00 00 00 e8 4a e7 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 15 f9 ff ff 48 8b 7d b0 e8 b1 7f 4d 00 e9 9b f3
RSP: 0000:ffff88809438f278 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff88808d522180 RBX: 0000000000000200 RCX: 1ffff11011aa4553
RDX: 0000000000000000 RSI: ffffffff81552e76 RDI: 0000000000000293
RBP: ffff88809438f300 R08: ffff88808d522180 R09: ffff88808d522a98
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8469e970 R14: 0000000000000056 R15: ffffffff896624b0
 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1937
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979
 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
 printk+0xba/0xed kernel/printk/printk.c:2012
 dump_unreclaimable_slab.cold+0xde/0xef mm/slab_common.c:1371
 dump_header+0x44b/0xa55 mm/oom_kill.c:447
 oom_kill_process.cold+0x10/0x6ef mm/oom_kill.c:954
 out_of_memory mm/oom_kill.c:1130 [inline]
 out_of_memory+0x362/0x1330 mm/oom_kill.c:1062
 __alloc_pages_may_oom mm/page_alloc.c:3551 [inline]
 __alloc_pages_slowpath+0x20b5/0x2870 mm/page_alloc.c:4253
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2197
 alloc_pages include/linux/gfp.h:532 [inline]
 __page_cache_alloc mm/filemap.c:969 [inline]
 __page_cache_alloc+0x2bd/0x450 mm/filemap.c:954
 page_cache_read mm/filemap.c:2408 [inline]
 filemap_fault+0xfeb/0x1f00 mm/filemap.c:2592
 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6353
 __do_fault+0x111/0x480 mm/memory.c:3269
 do_read_fault mm/memory.c:3681 [inline]
 do_fault mm/memory.c:3810 [inline]
 handle_pte_fault mm/memory.c:4041 [inline]
 __handle_mm_fault+0x2d78/0x3f80 mm/memory.c:4165
 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202
 __do_page_fault+0x62a/0xe90 arch/x86/mm/fault.c:1390
 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1465
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1204
RIP: 0033:0x45b153
Code: Bad RIP value.
RSP: 002b:000000c420039ea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000381cf821 RCX: 000000000045b153
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001dee2a0
RBP: 000000c420039ee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420039ed8 R11: 0000000000000206 R12: 0000029c09c28884
R13: 0000000000000001 R14: 000000c432a9e480 R15: 0000000000000001
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.97-syzkaller #0
Mem-Info:
active_anon:210648 inactive_anon:209 isolated_anon:0
 active_file:40 inactive_file:0 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:13971 slab_unreclaimable:1287598
 mapped:52226 shmem:254 pagetables:3160 bounce:0
 free:10875 free_pcp:232 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208904kB dirty:0kB writeback:0kB shmem:1016kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 294912kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Node 1 active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 DMA free:10256kB min:220kB low:272kB high:324kB 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+0x197/0x210 lib/dump_stack.c:118
lowmem_reserve[]: 0 2545 2546 2546 2546
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
Node 0 DMA32 free:13324kB min:36168kB low:45208kB high:54248kB active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2609804kB mlocked:0kB kernel_stack:10208kB pagetables:12640kB bounce:0kB free_pcp:516kB local_pcp:388kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:0kB min:12kB low:12kB high:12kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:1140kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:19920kB min:53704kB low:67128kB high:80552kB active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870168kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:412kB local_pcp:164kB free_cma:0kB
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10256kB
Node 0 DMA32: 1891*4kB (UME) 312*8kB (ME) 14*16kB (UM) 29*32kB (M) 5*64kB (M) 4*128kB (UM) 1*256kB (M) 2*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 13324kB
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
Node 1 Normal: 4*4kB (UE) 2*8kB (ME) 3*16kB (ME) 2*32kB (UE) 3*64kB (UME) 3*128kB (UME) 1*256kB (M) 3*512kB (ME) 3*1024kB (UM) 1*2048kB (U) 3*4096kB (M) = 19920kB
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
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
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
282 total pagecache pages
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
0 pages in swap cache
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3647
Total swap = 0kB
1965979 pages RAM
 __alloc_skb+0xd5/0x5f0 net/core/skbuff.c:193
0 pages HighMem/MovableOnly
341724 pages reserved
0 pages cma reserved
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 alloc_skb include/linux/skbuff.h:995 [inline]
 new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67
syz-fuzzer cpuset=/ mems_allowed=0-1
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x1b5/0x640 drivers/block/aoe/aoecmd.c:1374
 discover_timer+0x4e/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 run_ksoftirqd kernel/softirq.c:653 [inline]
 run_ksoftirqd+0x8e/0x110 kernel/softirq.c:645
 smpboot_thread_fn+0x6a3/0xa30 kernel/smpboot.c:164
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
CPU: 0 PID: 8141 Comm: syz-fuzzer Not tainted 4.19.97-syzkaller #0
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+0x197/0x210 lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/1 cpuset=/ mems_allowed=0-1
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc+0x1f3/0x700 mm/slab.c:3557
 __build_skb+0x3e/0x310 net/core/skbuff.c:281
 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:426
 netdev_alloc_skb include/linux/skbuff.h:2663 [inline]
 dev_alloc_skb include/linux/skbuff.h:2676 [inline]
 send_hsr_supervision_frame+0x110/0xfc0 net/hsr/hsr_device.c:265
 hsr_announce+0x12f/0x3b0 net/hsr/hsr_device.c:350
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x180/0x1d0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:console_unlock+0xf3c/0x10d0 kernel/printk/printk.c:2433
Code: fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 cb 00 00 00 48 83 3d 5d 2d 9d 07 00 0f 84 b6 00 00 00 e8 4a e7 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 15 f9 ff ff 48 8b 7d b0 e8 b1 7f 4d 00 e9 9b f3
RSP: 0000:ffff88809438f278 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff88808d522180 RBX: 0000000000000200 RCX: 1ffff11011aa4553
RDX: 0000000000000000 RSI: ffffffff81552e76 RDI: 0000000000000293
RBP: ffff88809438f300 R08: ffff88808d522180 R09: ffff88808d522a98
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8469e970 R14: 0000000000000056 R15: ffffffff896624b0
 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1937
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979
 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
 printk+0xba/0xed kernel/printk/printk.c:2012
 dump_unreclaimable_slab.cold+0xde/0xef mm/slab_common.c:1371
 dump_header+0x44b/0xa55 mm/oom_kill.c:447
 oom_kill_process.cold+0x10/0x6ef mm/oom_kill.c:954
 out_of_memory mm/oom_kill.c:1130 [inline]
 out_of_memory+0x362/0x1330 mm/oom_kill.c:1062
 __alloc_pages_may_oom mm/page_alloc.c:3551 [inline]
 __alloc_pages_slowpath+0x20b5/0x2870 mm/page_alloc.c:4253
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2197
 alloc_pages include/linux/gfp.h:532 [inline]
 __page_cache_alloc mm/filemap.c:969 [inline]
 __page_cache_alloc+0x2bd/0x450 mm/filemap.c:954
 page_cache_read mm/filemap.c:2408 [inline]
 filemap_fault+0xfeb/0x1f00 mm/filemap.c:2592
 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6353
 __do_fault+0x111/0x480 mm/memory.c:3269
 do_read_fault mm/memory.c:3681 [inline]
 do_fault mm/memory.c:3810 [inline]
 handle_pte_fault mm/memory.c:4041 [inline]
 __handle_mm_fault+0x2d78/0x3f80 mm/memory.c:4165
 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202
 __do_page_fault+0x62a/0xe90 arch/x86/mm/fault.c:1390
 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1465
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1204
RIP: 0033:0x45b153
Code: Bad RIP value.
RSP: 002b:000000c420039ea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000381cf821 RCX: 000000000045b153
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001dee2a0
RBP: 000000c420039ee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420039ed8 R11: 0000000000000206 R12: 0000029c09c28884
R13: 0000000000000001 R14: 000000c432a9e480 R15: 0000000000000001
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.97-syzkaller #0
Mem-Info:
active_anon:210648 inactive_anon:209 isolated_anon:0
 active_file:40 inactive_file:0 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:13971 slab_unreclaimable:1287598
 mapped:52226 shmem:254 pagetables:3160 bounce:0
 free:10875 free_pcp:232 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
Node 0 active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208904kB dirty:0kB writeback:0kB shmem:1016kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 294912kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
Node 1 active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
Node 0 DMA free:10256kB min:220kB low:272kB high:324kB 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 2545 2546 2546 2546
Node 0 DMA32 free:13324kB min:36168kB low:45208kB high:54248kB active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2609804kB mlocked:0kB kernel_stack:10208kB pagetables:12640kB bounce:0kB free_pcp:516kB local_pcp:388kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:0kB min:12kB low:12kB high:12kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:1140kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:19920kB min:53704kB low:67128kB high:80552kB active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870168kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:412kB local_pcp:164kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10256kB
Node 0 DMA32: 1891*4kB (UME) 312*8kB (ME) 14*16kB (UM) 29*32kB (M) 5*64kB (M) 4*128kB (UM) 1*256kB (M) 2*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 13324kB
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
Node 1 Normal: 4*4kB (UE) 2*8kB (ME) 3*16kB (ME) 2*32kB (UE) 3*64kB (UME) 3*128kB (UME) 1*256kB (M) 3*512kB (ME) 3*1024kB (UM) 1*2048kB (U) 3*4096kB (M) = 19920kB
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
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
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
282 total pagecache pages
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
0 pages in swap cache
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3647
Swap cache stats: add 0, delete 0, find 0/0
 __alloc_skb+0xd5/0x5f0 net/core/skbuff.c:193
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
341724 pages reserved
0 pages cma reserved
 alloc_skb include/linux/skbuff.h:995 [inline]
 new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x1b5/0x640 drivers/block/aoe/aoecmd.c:1374
syz-fuzzer cpuset=/ mems_allowed=0-1
 discover_timer+0x4e/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 run_ksoftirqd kernel/softirq.c:653 [inline]
 run_ksoftirqd+0x8e/0x110 kernel/softirq.c:645
 smpboot_thread_fn+0x6a3/0xa30 kernel/smpboot.c:164
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
CPU: 0 PID: 8141 Comm: syz-fuzzer Not tainted 4.19.97-syzkaller #0
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+0x197/0x210 lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/1 cpuset=/ mems_allowed=0-1
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc+0x1f3/0x700 mm/slab.c:3557
 __build_skb+0x3e/0x310 net/core/skbuff.c:281
 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:426
 netdev_alloc_skb include/linux/skbuff.h:2663 [inline]
 dev_alloc_skb include/linux/skbuff.h:2676 [inline]
 send_hsr_supervision_frame+0x110/0xfc0 net/hsr/hsr_device.c:265
 hsr_announce+0x12f/0x3b0 net/hsr/hsr_device.c:350
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x180/0x1d0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:console_unlock+0xf3c/0x10d0 kernel/printk/printk.c:2433
Code: fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 cb 00 00 00 48 83 3d 5d 2d 9d 07 00 0f 84 b6 00 00 00 e8 4a e7 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 15 f9 ff ff 48 8b 7d b0 e8 b1 7f 4d 00 e9 9b f3
RSP: 0000:ffff88809438f278 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff88808d522180 RBX: 0000000000000200 RCX: 1ffff11011aa4553
RDX: 0000000000000000 RSI: ffffffff81552e76 RDI: 0000000000000293
RBP: ffff88809438f300 R08: ffff88808d522180 R09: ffff88808d522a98
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8469e970 R14: 0000000000000056 R15: ffffffff896624b0
 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1937
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979
 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
 printk+0xba/0xed kernel/printk/printk.c:2012
 dump_unreclaimable_slab.cold+0xde/0xef mm/slab_common.c:1371
 dump_header+0x44b/0xa55 mm/oom_kill.c:447
 oom_kill_process.cold+0x10/0x6ef mm/oom_kill.c:954
 out_of_memory mm/oom_kill.c:1130 [inline]
 out_of_memory+0x362/0x1330 mm/oom_kill.c:1062
 __alloc_pages_may_oom mm/page_alloc.c:3551 [inline]
 __alloc_pages_slowpath+0x20b5/0x2870 mm/page_alloc.c:4253
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2197
 alloc_pages include/linux/gfp.h:532 [inline]
 __page_cache_alloc mm/filemap.c:969 [inline]
 __page_cache_alloc+0x2bd/0x450 mm/filemap.c:954
 page_cache_read mm/filemap.c:2408 [inline]
 filemap_fault+0xfeb/0x1f00 mm/filemap.c:2592
 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6353
 __do_fault+0x111/0x480 mm/memory.c:3269
 do_read_fault mm/memory.c:3681 [inline]
 do_fault mm/memory.c:3810 [inline]
 handle_pte_fault mm/memory.c:4041 [inline]
 __handle_mm_fault+0x2d78/0x3f80 mm/memory.c:4165
 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202
 __do_page_fault+0x62a/0xe90 arch/x86/mm/fault.c:1390
 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1465
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1204
RIP: 0033:0x45b153
Code: Bad RIP value.
RSP: 002b:000000c420039ea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000381cf821 RCX: 000000000045b153
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001dee2a0
RBP: 000000c420039ee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420039ed8 R11: 0000000000000206 R12: 0000029c09c28884
R13: 0000000000000001 R14: 000000c432a9e480 R15: 0000000000000001
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.97-syzkaller #0
Mem-Info:
active_anon:210648 inactive_anon:209 isolated_anon:0
 active_file:40 inactive_file:0 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:13971 slab_unreclaimable:1287598
 mapped:52226 shmem:254 pagetables:3160 bounce:0
 free:10875 free_pcp:232 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
Node 0 active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208904kB dirty:0kB writeback:0kB shmem:1016kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 294912kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
Node 1 active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
Node 0 DMA free:10256kB min:220kB low:272kB high:324kB 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 2545 2546 2546 2546
Node 0 DMA32 free:13324kB min:36168kB low:45208kB high:54248kB active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2609804kB mlocked:0kB kernel_stack:10208kB pagetables:12640kB bounce:0kB free_pcp:516kB local_pcp:388kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:0kB min:12kB low:12kB high:12kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:1140kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:19920kB min:53704kB low:67128kB high:80552kB active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870168kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:412kB local_pcp:164kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10256kB
Node 0 DMA32: 1891*4kB (UME) 312*8kB (ME) 14*16kB (UM) 29*32kB (M) 5*64kB (M) 4*128kB (UM) 1*256kB (M) 2*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 13324kB
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
Node 1 Normal: 4*4kB (UE) 2*8kB (ME) 3*16kB (ME) 2*32kB (UE) 3*64kB (UME) 3*128kB (UME) 1*256kB (M) 3*512kB (ME) 3*1024kB (UM) 1*2048kB (U) 3*4096kB (M) = 19920kB
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
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
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
282 total pagecache pages
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
0 pages in swap cache
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3647
Swap cache stats: add 0, delete 0, find 0/0
 __alloc_skb+0xd5/0x5f0 net/core/skbuff.c:193
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
341724 pages reserved
0 pages cma reserved
 alloc_skb include/linux/skbuff.h:995 [inline]
 new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x1b5/0x640 drivers/block/aoe/aoecmd.c:1374
syz-fuzzer cpuset=/ mems_allowed=0-1
 discover_timer+0x4e/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 run_ksoftirqd kernel/softirq.c:653 [inline]
 run_ksoftirqd+0x8e/0x110 kernel/softirq.c:645
 smpboot_thread_fn+0x6a3/0xa30 kernel/smpboot.c:164
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
CPU: 0 PID: 8141 Comm: syz-fuzzer Not tainted 4.19.97-syzkaller #0
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+0x197/0x210 lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/1 cpuset=/ mems_allowed=0-1
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc+0x1f3/0x700 mm/slab.c:3557
 __build_skb+0x3e/0x310 net/core/skbuff.c:281
 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:426
 netdev_alloc_skb include/linux/skbuff.h:2663 [inline]
 dev_alloc_skb include/linux/skbuff.h:2676 [inline]
 send_hsr_supervision_frame+0x110/0xfc0 net/hsr/hsr_device.c:265
 hsr_announce+0x12f/0x3b0 net/hsr/hsr_device.c:350
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x180/0x1d0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:console_unlock+0xf3c/0x10d0 kernel/printk/printk.c:2433
Code: fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 cb 00 00 00 48 83 3d 5d 2d 9d 07 00 0f 84 b6 00 00 00 e8 4a e7 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 15 f9 ff ff 48 8b 7d b0 e8 b1 7f 4d 00 e9 9b f3
RSP: 0000:ffff88809438f278 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff88808d522180 RBX: 0000000000000200 RCX: 1ffff11011aa4553
RDX: 0000000000000000 RSI: ffffffff81552e76 RDI: 0000000000000293
RBP: ffff88809438f300 R08: ffff88808d522180 R09: ffff88808d522a98
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8469e970 R14: 0000000000000056 R15: ffffffff896624b0
 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1937
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979
 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
 printk+0xba/0xed kernel/printk/printk.c:2012
 dump_unreclaimable_slab.cold+0xde/0xef mm/slab_common.c:1371
 dump_header+0x44b/0xa55 mm/oom_kill.c:447
 oom_kill_process.cold+0x10/0x6ef mm/oom_kill.c:954
 out_of_memory mm/oom_kill.c:1130 [inline]
 out_of_memory+0x362/0x1330 mm/oom_kill.c:1062
 __alloc_pages_may_oom mm/page_alloc.c:3551 [inline]
 __alloc_pages_slowpath+0x20b5/0x2870 mm/page_alloc.c:4253
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2197
 alloc_pages include/linux/gfp.h:532 [inline]
 __page_cache_alloc mm/filemap.c:969 [inline]
 __page_cache_alloc+0x2bd/0x450 mm/filemap.c:954
 page_cache_read mm/filemap.c:2408 [inline]
 filemap_fault+0xfeb/0x1f00 mm/filemap.c:2592
 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6353
 __do_fault+0x111/0x480 mm/memory.c:3269
 do_read_fault mm/memory.c:3681 [inline]
 do_fault mm/memory.c:3810 [inline]
 handle_pte_fault mm/memory.c:4041 [inline]
 __handle_mm_fault+0x2d78/0x3f80 mm/memory.c:4165
 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202
 __do_page_fault+0x62a/0xe90 arch/x86/mm/fault.c:1390
 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1465
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1204
RIP: 0033:0x45b153
Code: Bad RIP value.
RSP: 002b:000000c420039ea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000381cf821 RCX: 000000000045b153
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001dee2a0
RBP: 000000c420039ee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420039ed8 R11: 0000000000000206 R12: 0000029c09c28884
R13: 0000000000000001 R14: 000000c432a9e480 R15: 0000000000000001
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.97-syzkaller #0
Mem-Info:
active_anon:210648 inactive_anon:209 isolated_anon:0
 active_file:40 inactive_file:0 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:13971 slab_unreclaimable:1287598
 mapped:52226 shmem:254 pagetables:3160 bounce:0
 free:10875 free_pcp:232 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Node 0 active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208904kB dirty:0kB writeback:0kB shmem:1016kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 294912kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 1 active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
Node 0 DMA free:10256kB min:220kB low:272kB high:324kB 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
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
lowmem_reserve[]: 0 2545 2546 2546 2546
Node 0 DMA32 free:13324kB min:36168kB low:45208kB high:54248kB active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2609804kB mlocked:0kB kernel_stack:10208kB pagetables:12640kB bounce:0kB free_pcp:516kB local_pcp:388kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
Node 0 Normal free:0kB min:12kB low:12kB high:12kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:1140kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
Node 1 Normal free:19920kB min:53704kB low:67128kB high:80552kB active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870168kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:412kB local_pcp:164kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10256kB
Node 0 DMA32: 1891*4kB (UME) 312*8kB (ME) 14*16kB (UM) 29*32kB (M) 5*64kB (M) 4*128kB (UM) 1*256kB (M) 2*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 13324kB
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
Node 1 Normal: 4*4kB (UE) 2*8kB (ME) 3*16kB (ME) 2*32kB (UE) 3*64kB (UME) 3*128kB (UME) 1*256kB (M) 3*512kB (ME) 3*1024kB (UM) 1*2048kB (U) 3*4096kB (M) = 19920kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
282 total pagecache pages
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
0 pages in swap cache
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3647
Swap cache stats: add 0, delete 0, find 0/0
 __alloc_skb+0xd5/0x5f0 net/core/skbuff.c:193
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
 alloc_skb include/linux/skbuff.h:995 [inline]
 new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67
341724 pages reserved
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x1b5/0x640 drivers/block/aoe/aoecmd.c:1374
0 pages cma reserved
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0-1
 discover_timer+0x4e/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 run_ksoftirqd kernel/softirq.c:653 [inline]
 run_ksoftirqd+0x8e/0x110 kernel/softirq.c:645
 smpboot_thread_fn+0x6a3/0xa30 kernel/smpboot.c:164
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
CPU: 0 PID: 8141 Comm: syz-fuzzer Not tainted 4.19.97-syzkaller #0
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+0x197/0x210 lib/dump_stack.c:118
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
ksoftirqd/1 cpuset=/ mems_allowed=0-1
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc+0x1f3/0x700 mm/slab.c:3557
 __build_skb+0x3e/0x310 net/core/skbuff.c:281
 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:426
 netdev_alloc_skb include/linux/skbuff.h:2663 [inline]
 dev_alloc_skb include/linux/skbuff.h:2676 [inline]
 send_hsr_supervision_frame+0x110/0xfc0 net/hsr/hsr_device.c:265
 hsr_announce+0x12f/0x3b0 net/hsr/hsr_device.c:350
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x180/0x1d0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:console_unlock+0xf3c/0x10d0 kernel/printk/printk.c:2433
Code: fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 cb 00 00 00 48 83 3d 5d 2d 9d 07 00 0f 84 b6 00 00 00 e8 4a e7 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 15 f9 ff ff 48 8b 7d b0 e8 b1 7f 4d 00 e9 9b f3
RSP: 0000:ffff88809438f278 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff88808d522180 RBX: 0000000000000200 RCX: 1ffff11011aa4553
RDX: 0000000000000000 RSI: ffffffff81552e76 RDI: 0000000000000293
RBP: ffff88809438f300 R08: ffff88808d522180 R09: ffff88808d522a98
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8469e970 R14: 0000000000000056 R15: ffffffff896624b0
 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1937
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979
 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
 printk+0xba/0xed kernel/printk/printk.c:2012
 dump_unreclaimable_slab.cold+0xde/0xef mm/slab_common.c:1371
 dump_header+0x44b/0xa55 mm/oom_kill.c:447
 oom_kill_process.cold+0x10/0x6ef mm/oom_kill.c:954
 out_of_memory mm/oom_kill.c:1130 [inline]
 out_of_memory+0x362/0x1330 mm/oom_kill.c:1062
 __alloc_pages_may_oom mm/page_alloc.c:3551 [inline]
 __alloc_pages_slowpath+0x20b5/0x2870 mm/page_alloc.c:4253
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2197
 alloc_pages include/linux/gfp.h:532 [inline]
 __page_cache_alloc mm/filemap.c:969 [inline]
 __page_cache_alloc+0x2bd/0x450 mm/filemap.c:954
 page_cache_read mm/filemap.c:2408 [inline]
 filemap_fault+0xfeb/0x1f00 mm/filemap.c:2592
 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6353
 __do_fault+0x111/0x480 mm/memory.c:3269
 do_read_fault mm/memory.c:3681 [inline]
 do_fault mm/memory.c:3810 [inline]
 handle_pte_fault mm/memory.c:4041 [inline]
 __handle_mm_fault+0x2d78/0x3f80 mm/memory.c:4165
 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202
 __do_page_fault+0x62a/0xe90 arch/x86/mm/fault.c:1390
 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1465
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1204
RIP: 0033:0x45b153
Code: Bad RIP value.
RSP: 002b:000000c420039ea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000381cf821 RCX: 000000000045b153
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001dee2a0
RBP: 000000c420039ee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420039ed8 R11: 0000000000000206 R12: 0000029c09c28884
R13: 0000000000000001 R14: 000000c432a9e480 R15: 0000000000000001
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.97-syzkaller #0
Mem-Info:
active_anon:210648 inactive_anon:209 isolated_anon:0
 active_file:40 inactive_file:0 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:13971 slab_unreclaimable:1287598
 mapped:52226 shmem:254 pagetables:3160 bounce:0
 free:10875 free_pcp:232 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
Node 0 active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:208904kB dirty:0kB writeback:0kB shmem:1016kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 294912kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
Node 1 active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Node 0 DMA free:10256kB min:220kB low:272kB high:324kB 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 2545 2546 2546 2546
Node 0 DMA32 free:13324kB min:36168kB low:45208kB high:54248kB active_anon:842592kB inactive_anon:836kB active_file:128kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2609804kB mlocked:0kB kernel_stack:10208kB pagetables:12640kB bounce:0kB free_pcp:516kB local_pcp:388kB free_cma:0kB
lowmem_reserve[]: 0 0 1 1 1
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
Node 0 Normal free:0kB min:12kB low:12kB high:12kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:1140kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 1 Normal free:19920kB min:53704kB low:67128kB high:80552kB active_anon:0kB inactive_anon:0kB active_file:32kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870168kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:412kB local_pcp:164kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10256kB
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
Node 0 DMA32: 1891*4kB (UME) 312*8kB (ME) 14*16kB (UM) 29*32kB (M) 5*64kB (M) 4*128kB (UM) 1*256kB (M) 2*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 13324kB
Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
Node 1 Normal: 4*4kB (UE) 2*8kB (ME) 3*16kB (ME) 2*32kB (UE) 3*64kB (UME) 3*128kB (UME) 1*256kB (M) 3*512kB (ME) 3*1024kB (UM) 1*2048kB (U) 3*4096kB (M) = 19920kB
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
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
 slab_alloc_node mm/slab.c:3332 [inline]
 kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3647
282 total pagecache pages
 __alloc_skb+0xd5/0x5f0 net/core/skbuff.c:193
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
1965979 pages RAM
 alloc_skb include/linux/skbuff.h:995 [inline]
 new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67
0 pages HighMem/MovableOnly
341724 pages reserved
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x1b5/0x640 drivers/block/aoe/aoecmd.c:1374
0 pages cma reserved
syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
syz-fuzzer cpuset=/ mems_allowed=0-1
 discover_timer+0x4e/0x60 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 run_ksoftirqd kernel/softirq.c:653 [inline]
 run_ksoftirqd+0x8e/0x110 kernel/softirq.c:645
 smpboot_thread_fn+0x6a3/0xa30 kernel/smpboot.c:164
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
CPU: 0 PID: 8141 Comm: syz-fuzzer Not tainted 4.19.97-syzkaller #0
aoe: skb alloc failure
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
ksoftirqd/1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
ksoftirqd/1 cpuset=/ mems_allowed=0-1
 warn_alloc.cold+0x7b/0x173 mm/page_alloc.c:3455
 __alloc_pages_slowpath+0x2214/0x2870 mm/page_alloc.c:4315
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 __alloc_pages include/linux/gfp.h:496 [inline]
 __alloc_pages_node include/linux/gfp.h:509 [inline]
 kmem_getpages mm/slab.c:1412 [inline]
 cache_grow_begin+0x91/0x8c0 mm/slab.c:2682
 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3224
 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3292
 __do_cache_alloc mm/slab.c:3361 [inline]
 slab_alloc mm/slab.c:3389 [inline]
 kmem_cache_alloc+0x1f3/0x700 mm/slab.c:3557
 __build_skb+0x3e/0x310 net/core/skbuff.c:281
 __netdev_alloc_skb+0x2ba/0x470 net/core/skbuff.c:426
 netdev_alloc_skb include/linux/skbuff.h:2663 [inline]
 dev_alloc_skb include/linux/skbuff.h:2676 [inline]
 send_hsr_supervision_frame+0x110/0xfc0 net/hsr/hsr_device.c:265
 hsr_announce+0x12f/0x3b0 net/hsr/hsr_device.c:350
 call_timer_fn+0x18d/0x720 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers kernel/time/timer.c:1684 [inline]
 __run_timers kernel/time/timer.c:1652 [inline]
 run_timer_softirq+0x64f/0x16a0 kernel/time/timer.c:1697
 __do_softirq+0x25c/0x921 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x180/0x1d0 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:console_unlock+0xf3c/0x10d0 kernel/printk/printk.c:2433
Code: fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 cb 00 00 00 48 83 3d 5d 2d 9d 07 00 0f 84 b6 00 00 00 e8 4a e7 15 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 15 f9 ff ff 48 8b 7d b0 e8 b1 7f 4d 00 e9 9b f3
RSP: 0000:ffff88809438f278 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff88808d522180 RBX: 0000000000000200 RCX: 1ffff11011aa4553
RDX: 0000000000000000 RSI: ffffffff81552e76 RDI: 0000000000000293
RBP: ffff88809438f300 R08: ffff88808d522180 R09: ffff88808d522a98
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8469e970 R14: 0000000000000056 R15: ffffffff896624b0
 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1937
 vprintk_default+0x28/0x30 kernel/printk/printk.c:1979
 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
 printk+0xba/0xed kernel/printk/printk.c:2012
 dump_unreclaimable_slab.cold+0xde/0xef mm/slab_common.c:1371
 dump_header+0x44b/0xa55 mm/oom_kill.c:447
 oom_kill_process.cold+0x10/0x6ef mm/oom_kill.c:954
 out_of_memory mm/oom_kill.c:1130 [inline]
 out_of_memory+0x362/0x1330 mm/oom_kill.c:1062
 __alloc_pages_may_oom mm/page_alloc.c:3551 [inline]
 __alloc_pages_slowpath+0x20b5/0x2870 mm/page_alloc.c:4253
 __alloc_pages_nodemask+0x617/0x750 mm/page_alloc.c:4417
 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2197
 alloc_pages include/linux/gfp.h:532 [inline]
 __page_cache_alloc mm/filemap.c:969 [inline]
 __page_cache_alloc+0x2bd/0x450 mm/filemap.c:954
 page_cache_read mm/filemap.c:2408 [inline]
 filemap_fault+0xfeb/0x1f00 mm/filemap.c:2592
 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6353
 __do_fault+0x111/0x480 mm/memory.c:3269
 do_read_fault mm/memory.c:3681 [inline]
 do_fault mm/memory.c:3810 [inline]
 handle_pte_fault mm/memory.c:4041 [inline]
 __handle_mm_fault+0x2d78/0x3f80 mm/memory.c:4165
 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202
 __do_page_fault+0x62a/0xe90 arch/x86/mm/fault.c:1390
 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1465
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1204
RIP: 0033:0x45b153
Code: Bad RIP value.
RSP: 002b:000000c420039ea0 EFLAGS: 00010206
RAX: ffffffffffffff92 RBX: 00000000381cf821 RCX: 000000000045b153
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001dee2a0
RBP: 000000c420039ee8 R08: 0000000000000000 R09: 0000000000000000
R10: 000000c420039ed8 R11: 0000000000000206 R12: 0000029c09c28884
R13: 0000000000000001 R14: 000000c432a9e480 R15: 0000000000000001
warn_alloc_show_mem: 1 callbacks suppressed
CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.97-syzkaller #0
Mem-Info:
active_anon:210648 inactive_anon:209 isolated_anon:0
 active_file:40 inactive_file:0 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:13971 slab_unreclaimable:1287598
 mapped:52226 shmem:254 pagetables:3160 bounce:0
 free:10875 free_pcp:232 free_cma:0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/01/19 19:49 linux-4.19.y dc4ba5be1bab 0342f8c7 .config console log report ci2-linux-4-19
2019/12/18 23:01 linux-4.19.y 7d120bf21c05 79b211f7 .config console log report ci2-linux-4-19
2019/08/25 23:48 linux-4.19.y def4c11b3131 d21c5d9d .config console log report ci2-linux-4-19
2019/08/22 17:55 linux-4.19.y a5aa80588fcd c6c81a0b .config console log report ci2-linux-4-19
* Struck through repros no longer work on HEAD.