INFO: task syz.3.2006:13365 blocked in I/O wait for more than 143 seconds.
Tainted: G L syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.2006 state:D stack:25600 pid:13365 tgid:13363 ppid:5735 task_flags:0x400040 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5504 [inline]
__schedule+0x125c/0x6730 kernel/sched/core.c:7228
__schedule_loop kernel/sched/core.c:7307 [inline]
schedule+0xdd/0x390 kernel/sched/core.c:7322
io_schedule+0x8a/0xf0 kernel/sched/core.c:8150
folio_wait_bit_common+0x414/0xa70 mm/filemap.c:1324
folio_lock include/linux/pagemap.h:1159 [inline]
migrate_folio_unmap mm/migrate.c:1250 [inline]
migrate_pages_batch+0x7a1/0x45c0 mm/migrate.c:1907
migrate_pages_sync+0x4db/0x880 mm/migrate.c:2051
migrate_pages+0x1a83/0x2850 mm/migrate.c:2133
compact_zone+0x243c/0x4420 mm/compaction.c:2669
compact_node+0x17f/0x2c0 mm/compaction.c:2938
compact_nodes mm/compaction.c:2960 [inline]
sysctl_compaction_handler mm/compaction.c:3011 [inline]
sysctl_compaction_handler+0x141/0x210 mm/compaction.c:2998
proc_sys_call_handler+0x47f/0x5a0 fs/proc/proc_sysctl.c:600
iter_file_splice_write+0x830/0x10b0 fs/splice.c:736
do_splice_from fs/splice.c:936 [inline]
direct_splice_actor+0x192/0x690 fs/splice.c:1159
splice_direct_to_actor+0x345/0xa30 fs/splice.c:1103
do_splice_direct_actor fs/splice.c:1202 [inline]
do_splice_direct+0x174/0x240 fs/splice.c:1228
do_sendfile+0xadc/0xe20 fs/read_write.c:1371
__do_sys_sendfile64 fs/read_write.c:1426 [inline]
__se_sys_sendfile64 fs/read_write.c:1418 [inline]
__x64_sys_sendfile64+0x154/0x220 fs/read_write.c:1418
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff41d99ce59
RSP: 002b:00007ff41e8dd028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007ff41dc16090 RCX: 00007ff41d99ce59
RDX: 00002000000000c0 RSI: 0000000000000008 RDI: 0000000000000009
RBP: 00007ff41da32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000000a R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff41dc16128 R14: 00007ff41dc16090 R15: 00007ffde84ce398
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 43 Comm: khungtaskd Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
nmi_cpu_backtrace.cold+0x12d/0x151 lib/nmi_backtrace.c:122
nmi_trigger_cpumask_backtrace+0x21c/0x2a0 lib/nmi_backtrace.c:65
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
__sys_info lib/sys_info.c:157 [inline]
sys_info+0x141/0x190 lib/sys_info.c:165
check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
watchdog+0xcb1/0x1030 kernel/hung_task.c:561
kthread+0x370/0x450 kernel/kthread.c:436
ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 0 to CPUs 1-3:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 7953 Comm: kworker/u33:49 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__sanitizer_cov_trace_pc+0x2a/0x70 kernel/kcov.c:235
Code: f3 0f 1e fa 65 8b 05 05 91 09 12 48 8b 34 24 65 48 8b 15 e1 90 09 12 a9 00 01 ff 00 74 1b f6 c4 01 74 07 a9 00 00 ff 00 74 05 51 92 94 09 8b 82 24 17 00 00 85 c0 74 f1 8b 82 f8 16 00 00 83
RSP: 0018:ffffc9000d5bf8a0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 000ffffffffff000 RCX: ffffffff825efbf6
RDX: ffff88803fe90000 RSI: ffffffff825efc1a RDI: ffff88803fe90000
RBP: 000000000aaaaaaa R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88801b8d0cc0
R13: ffff88801b8d8550 R14: ffff888000000000 R15: 000000001b8d9067
FS: 0000000000000000(0000) GS:ffff8880d63ef000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff15d8f2ff8 CR3: 000000000e592000 CR4: 0000000000352ef0
DR0: ffffffffffffffff DR1: 00000000000001f7 DR2: 00000000ffffffff
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
pud_pgtable arch/x86/include/asm/pgtable.h:1049 [inline]
pmd_offset include/linux/pgtable.h:127 [inline]
pmd_alloc include/linux/mm.h:3602 [inline]
walk_to_pmd+0x2aa/0x4c0 mm/memory.c:2285
get_locked_pte+0x25/0xc0 mm/memory.c:2296
__text_poke+0x250/0xae0 arch/x86/kernel/alternative.c:2587
smp_text_poke_batch_finish+0x6b5/0xc60 arch/x86/kernel/alternative.c:3061
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
jump_label_update+0x37a/0x550 kernel/jump_label.c:910
static_key_enable_cpuslocked+0x1bc/0x270 kernel/jump_label.c:210
static_key_enable+0x1a/0x20 kernel/jump_label.c:223
toggle_allocation_gate mm/kfence/core.c:911 [inline]
toggle_allocation_gate+0xfe/0x2d0 mm/kfence/core.c:903
process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
process_scheduled_works kernel/workqueue.c:3405 [inline]
worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
kthread+0x370/0x450 kernel/kthread.c:436
ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
NMI backtrace for cpu 2
CPU: 2 UID: 0 PID: 110 Comm: kswapd0 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:asm_sysvec_apic_timer_interrupt+0x0/0x20 arch/x86/include/asm/idtentry.h:674
Code: 16 b1 9a 0a e9 81 06 00 00 90 f3 0f 1e fa 0f 01 ca fc 6a ff e8 31 05 00 00 48 89 c4 48 89 e7 e8 26 b0 9a 0a e9 61 06 00 00 90 0f 1e fa 0f 01 ca fc 6a ff e8 11 05 00 00 48 89 c4 48 89 e7 e8
RSP: 0018:ffffc90000fb6d58 EFLAGS: 00000046
RAX: 0000000080000201 RBX: ffffffff8f3ada49 RCX: ffffffff850a9eca
RDX: ffff888023a88000 RSI: ffffffff850a9ed8 RDI: ffff888023a88000
RBP: 0000000000000012 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000010 R11: ffff88805cef0042 R12: ffffffff8f3ada4d
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000010
FS: 0000000000000000(0000) GS:ffff8880d64ef000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fca046f6fa8 CR3: 000000000e592000 CR4: 0000000000352ef0
Call Trace:
RIP: 0010:check_kcov_mode kernel/kcov.c:185 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x39/0x70 kernel/kcov.c:217
Code: 65 48 8b 15 e1 90 09 12 a9 00 01 ff 00 74 1b f6 c4 01 74 07 a9 00 00 ff 00 74 05 e9 51 92 94 09 8b 82 24 17 00 00 85 c0 74 f1 <8b> 82 f8 16 00 00 83 f8 02 75 e6 48 8b 8a 00 17 00 00 8b 92 fc 16
RSP: 0018:ffffc90000fb6d88 EFLAGS: 00000246
check_template lib/842/842_compress.c:390 [inline]
process_next lib/842/842_compress.c:456 [inline]
sw842_compress+0x1a48/0x4450 lib/842/842_compress.c:545
crypto_scomp_decompress include/crypto/internal/scompress.h:80 [inline]
scomp_acomp_comp_decomp+0x732/0xc40 crypto/scompress.c:252
crypto_acomp_compress+0x14c/0x540 crypto/acompress.c:285
zswap_compress mm/zswap.c:874 [inline]
zswap_store_page mm/zswap.c:1410 [inline]
zswap_store+0xe8d/0x2e70 mm/zswap.c:1521
swap_writeout+0xde3/0x1db0 mm/page_io.c:285
writeout mm/vmscan.c:630 [inline]
pageout mm/vmscan.c:677 [inline]
shrink_folio_list+0x51c5/0x60a0 mm/vmscan.c:1402
evict_folios+0x327/0x1960 mm/vmscan.c:4840
try_to_shrink_lruvec+0x249/0x6b0 mm/vmscan.c:4988
shrink_one+0x307/0x850 mm/vmscan.c:5029
shrink_many mm/vmscan.c:5092 [inline]
lru_gen_shrink_node mm/vmscan.c:5170 [inline]
shrink_node+0x2721/0x3e90 mm/vmscan.c:6159
kswapd_shrink_node mm/vmscan.c:7013 [inline]
balance_pgdat+0xb20/0x1f00 mm/vmscan.c:7191
kswapd+0x556/0xb50 mm/vmscan.c:7467
kthread+0x370/0x450 kernel/kthread.c:436
ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
NMI backtrace for cpu 3
CPU: 3 UID: 0 PID: 19688 Comm: syz.3.3739 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:memset_orig+0x3e/0xb0 arch/x86/lib/memset_64.S:72
Code: c1 41 89 f9 41 83 e1 07 75 74 48 89 d1 48 c1 e9 06 74 39 66 0f 1f 84 00 00 00 00 00 48 ff c9 48 89 07 48 89 47 08 48 89 47 10 <48> 89 47 18 48 89 47 20 48 89 47 28 48 89 47 30 48 89 47 38 48 8d
RSP: 0018:ffffc90004447840 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffffc90041a1c000 RCX: 0000000000327c78
RDX: 0000000020002000 RSI: 0000000000000000 RDI: fffff5201b9539c0
RBP: 0000000100010000 R08: 0000000000000006 R09: 0000000000000000
R10: fffff52008343800 R11: dffffc0000000000 R12: 0000000000000000
R13: 0000000100010000 R14: 0000000000000001 R15: 0000000000000000
FS: 00007f3c868736c0(0000) GS:ffff8880d65ef000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2d47f4 CR3: 000000003ee1d000 CR4: 0000000000352ef0
Call Trace:
kasan_unpoison+0x27/0x60 mm/kasan/shadow.c:178
__kasan_unpoison_vmalloc+0x22/0x30 mm/kasan/shadow.c:637
kasan_unpoison_vmalloc include/linux/kasan.h:622 [inline]
__get_vm_area_node+0x298/0x330 mm/vmalloc.c:3241
get_vm_area+0x73/0xa0 mm/vmalloc.c:3268
arena_map_alloc+0x2a0/0x8e0 kernel/bpf/arena.c:292
map_create_alloc kernel/bpf/syscall.c:1523 [inline]
map_create+0x874/0x3120 kernel/bpf/syscall.c:1640
__sys_bpf+0x2a6e/0x4e80 kernel/bpf/syscall.c:6395
__do_sys_bpf kernel/bpf/syscall.c:6537 [inline]
__se_sys_bpf kernel/bpf/syscall.c:6534 [inline]
__x64_sys_bpf+0xce/0x140 kernel/bpf/syscall.c:6534
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3c8599ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3c86873028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f3c85c15fa0 RCX: 00007f3c8599ce59
RDX: 0000000000000048 RSI: 0000200000003940 RDI: 0000000000000000
RBP: 00007f3c85a32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3c85c16038 R14: 00007f3c85c15fa0 R15: 00007ffe8c2e55d8