WARNING in enable_work
------------[ cut here ]------------
workqueue: work disable count underflowed
WARNING: CPU: 2 PID: 22 at kernel/workqueue.c:4317 work_offqd_enable kernel/workqueue.c:4317 [inline]
WARNING: CPU: 2 PID: 22 at kernel/workqueue.c:4317 enable_work+0x2fa/0x340 kernel/workqueue.c:4488
Modules linked in:
CPU: 2 UID: 0 PID: 22 Comm: cpuhp/2 Not tainted 6.13.0-rc6-syzkaller-g9d89551994a4-dirty #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:work_offqd_enable kernel/workqueue.c:4317 [inline]
RIP: 0010:enable_work+0x2fa/0x340 kernel/workqueue.c:4488
Code: 89 ee e8 49 d6 36 00 45 84 ed 0f 85 28 fe ff ff e8 9b db 36 00 c6 05 f2 9f e4 0e 01 90 48 c7 c7 00 da 6b 8b e8 57 12 f7 ff 90 <0f> 0b 90 90 e9 05 fe ff ff 48 89 ef e8 e5 7f 99 00 e9 a9 fe ff ff
RSP: 0000:ffffc9000060fca0 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff815a5139
RDX: ffff88801d6dc880 RSI: ffffffff815a5146 RDI: 0000000000000001
RBP: ffff88806a838660 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000002 R12: 1ffff920000c1f95
R13: 0000000000000000 R14: 00000000000000c5 R15: ffffffff81dbfd90
FS: 0000000000000000(0000) GS:ffff88806a800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000df7e000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
vmstat_cpu_online+0x83/0xf0 mm/vmstat.c:2151
cpuhp_invoke_callback+0x3d0/0xa10 kernel/cpu.c:194
cpuhp_thread_fun+0x480/0x6f0 kernel/cpu.c:1102
smpboot_thread_fn+0x661/0xa30 kernel/smpboot.c:164
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
failed to run ["ssh" "-p" "54151" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "root@localhost" "pwd"]: exit status 255
Connection timed out during banner exchange
Connection to 127.0.0.1 port 54151 timed out
ftruncate: Invalid argument
qemu-system-x86_64: warning: hub 0 is not connected to host network
[ 0.000000][ T0] Linux version 6.13.0-rc6-syzkaller-g9d89551994a4-dirty (syzkaller@syzkaller) (gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #0 SMP PREEMPT_DYNAMIC now
[ 0.000000][ T0] Command line: root=/dev/sda console=ttyS0 root=/dev/sda1
[ 0.000000][ T0] KERNEL supported cpus:
[ 0.000000][ T0] Intel GenuineIntel
[ 0.000000][ T0] AMD AuthenticAMD
[ 0.000000][ T0] BIOS-provided physical RAM map:
[ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x000000007ffdcfff] usable
[ 0.000000][ T0] BIOS-e820: [mem 0x000000007ffdd000-0x000000007fffffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000b0000000-0x00000000bfffffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000017fffffff] usable
[ 0.000000][ T0] printk: legacy bootconsole [earlyser0] enabled
[ 0.000000][ T0] ERROR: earlyprintk= earlyser already used
[ 0.000000][ T0] ERROR: earlyprintk= earlyser already used
[ 0.000000][ T0] **********************************************************
[ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** This system shows unhashed kernel memory addresses **
[ 0.000000][ T0] ** via the console, logs, and other interfaces. This **
[ 0.000000][ T0] ** might reduce the security of your system. **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** If you see this message and you are not debugging **
[ 0.000000][ T0] ** the kernel, report this immediately to your system **
[ 0.000000][ T0] ** administrator! **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000][ T0] **********************************************************
[ 0.000000][ T0] Malformed early option 'vsyscall'
[ 0.000000][ T0] nopcid: PCID feature disabled
[ 0.000000][ T0] NX (Execute Disable) protection: active
[ 0.000000][ T0] APIC: Static calls initialized
[ 0.000000][ T0] SMBIOS 2.8 present.
[ 0.000000][ T0] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 0.000000][ T0] DMI: Memory slots populated: 1/1
[ 0.000000][ T0] Hypervisor detected: KVM
[ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00
[ 0.000005][ T0] kvm-clock: using sched offset of 1848360400 cycles
[ 0.003491][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[ 0.013890][ T0] tsc: Detected 2600.024 MHz processor
[ 0.025196][ T0] last_pfn = 0x180000 max_arch_pfn = 0x400000000
[ 0.029161][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs
[ 0.034472][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT
[ 0.039286][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000
[ 0.050014][ T0] found SMP MP-table at [mem 0x000f53c0-0x000f53cf]
[ 0.053849][ T0] Using GB pages for direct mapping
[ 0.059867][ T0] ACPI: Early table checksum verification disabled
[ 0.063667][ T0] ACPI: RSDP 0x00000000000F5190 000014 (v00 BOCHS )
[ 0.067543][ T0] ACPI: RSDT 0x000000007FFE2925 000048 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.072995][ T0] ACPI: FACP 0x000000007FFE1B2C 0000F4 (v03 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.078536][ T0] ACPI: DSDT 0x000000007FFDF040 002AEC (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.083984][ T0] ACPI: FACS 0x000000007FFDF000 000040
[ 0.087154][ T0] ACPI: APIC 0x000000007FFE1C20 0000B0 (v03 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.092625][ T0] ACPI: HPET 0x000000007FFE1CD0 000038 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.098068][ T0] ACPI: SRAT 0x000000007FFE1D08 000178 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.103538][ T0] ACPI: MCFG 0x000000007FFE1E80 00003C (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.109036][ T0] ACPI: DMAR 0x000000007FFE1EBC 0000C0 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.114485][ T0] ACPI: SSDT 0x000000007FFE1F7C 0008A1 (v01 BOCHS NVDIMM 00000001 BXPC 00000001)
[ 0.119916][ T0] ACPI: NFIT 0x000000007FFE281D 0000E0 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.125471][ T0] ACPI: WAET 0x000000007FFE28FD 000028 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.130961][ T0] ACPI: Reserving FACP table memory at [mem 0x7ffe1b2c-0x7ffe1c1f]
[ 0.135542][ T0] ACPI: Reserving DSDT table memory at [mem 0x7ffdf040-0x7ffe1b2b]
[ 0.140097][ T0] ACPI: Reserving FACS table memory at [mem 0x7ffdf000-0x7ffdf03f]
[ 0.144670][ T0] ACPI: Reserving APIC table memory at [mem 0x7ffe1c20-0x7ffe1ccf]
[ 0.149215][ T0] ACPI: Reserving HPET table memory at [mem 0x7ffe1cd0-0x7ffe1d07]
[ 0.153794][ T0] ACPI: Reserving SRAT table memory at [mem 0x7ffe1d08-0x7ffe1e7f]
[ 0.158394][ T0] ACPI: Reserving MCFG table memory at [mem 0x7ffe1e80-0x7ffe1ebb]
[ 0.162948][ T0] ACPI: Reserving DMAR table memory at [mem 0x7ffe1ebc-0x7ffe1f7b]
[ 0.167504][ T0] ACPI: Reserving SSDT table memory at [mem 0x7ffe1f7c-0x7ffe281c]
[ 0.172063][ T0] ACPI: Reserving NFIT table memory at [mem 0x7ffe281d-0x7ffe28fc]
[ 0.176595][ T0] ACPI: Reserving WAET table memory at [mem 0x7ffe28fd-0x7ffe2924]
[ 0.181540][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff]
[ 0.185517][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x7fffffff]
[ 0.189498][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x17fffffff]
[ 0.193567][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x180000000-0x183ffffff] non-volatile
[ 0.198313][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x180000000-0x57fffffff] hotplug
[ 0.202784][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0x7fffffff] -> [mem 0x00001000-0x7fffffff]
[ 0.209266][ T0] NUMA: Node 0 [mem 0x00001000-0x7fffffff] + [mem 0x100000000-0x17fffffff] -> [mem 0x00001000-0x17fffffff]
[ 0.215869][ T0] Faking node 0 at [mem 0x0000000000001000-0x00000000ffffffff] (4095MB)
[ 0.220648][ T0] Faking node 1 at [mem 0x0000000100000000-0x000000017fffffff] (2048MB)
[ 0.225751][ T0] NODE_DATA(0) allocated [mem 0x7ffd7540-0x7ffdcfff]
[ 0.229588][ T0] NODE_DATA(1) allocated [mem 0x17fff7540-0x17fffcfff]
[ 0.249626][ T0] Zone ranges:
[ 0.251583][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.255626][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff]
[ 0.259662][ T0] Normal [mem 0x0000000100000000-0x000000017fffffff]
[ 0.263752][ T0] Device empty
[ 0.265867][ T0] Movable zone start for each node
[ 0.268818][ T0] Early memory node ranges
[ 0.271383][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff]
[ 0.275516][ T0] node 0: [mem 0x0000000000100000-0x000000007ffdcfff]
[ 0.279681][ T0] node 1: [mem 0x0000000100000000-0x000000017fffffff]
[ 0.283784][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000007ffdcfff]
[ 0.288337][ T0] Initmem setup node 1 [mem 0x0000000100000000-0x000000017fffffff]
[ 0.292922][ T0] On node 0, zone DMA: 1 pages in unavailable ranges
[ 0.296966][ T0] On node 0, zone DMA: 97 pages in unavailable ranges
[ 0.343126][ T0] On node 1, zone Normal: 35 pages in unavailable ranges
[ 0.503986][ T0] kasan: KernelAddressSanitizer initialized
[ 0.512281][ T0] ACPI: PM-Timer IO Port: 0x608
[ 0.515154][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.519301][ T0] IOAPIC[0]: apic_id 0, version 32, address 0xfec00000, GSI 0-23
[ 0.523800][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.528014][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.532377][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.536687][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.541099][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.545521][ T0] ACPI: Using ACPI (MADT) for SMP configuration information
[ 0.549735][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[ 0.553176][ T0] TSC deadline timer available
[ 0.555906][ T0] CPU topo: Max. logical packages: 2
[ 0.559028][ T0] CPU topo: Max. logical dies: 2
[ 0.562165][ T0] CPU topo: Max. dies per package: 1
[ 0.565293][ T0] CPU topo: Max. threads per core: 2
[ 0.568426][ T0] CPU topo: Num. cores per package: 2
[ 0.571683][ T0] CPU topo: Num. threads per package: 4
[ 0.575001][ T0] CPU topo: Allowing 4 present CPUs plus 4 hotplug CPUs
[ 0.579095][ T0] kvm-guest: APIC: eoi() replaced with kvm_guest_apic_eoi_write()
[ 0.583699][ T0] kvm-guest: KVM setup pv remote TLB flush
[ 0.587058][ T0] kvm-guest: setup PV sched yield
[ 0.589970][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.594866][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[ 0.599722][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff]
[ 0.604593][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff]
[ 0.609453][ T0] PM: hibernation: Registered nosave memory: [mem 0x7ffdd000-0x7fffffff]
[ 0.614302][ T0] PM: hibernation: Registered nosave memory: [mem 0x80000000-0xafffffff]
[ 0.619146][ T0] PM: hibernation: Registered nosave memory: [mem 0xb0000000-0xbfffffff]
[ 0.623998][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfed1bfff]
[ 0.628858][ T0] PM: hibernation: Registered nosave memory: [mem 0xfed1c000-0xfed1ffff]
[ 0.633716][ T0] PM: hibernation: Registered nosave memory: [mem 0xfed20000-0xfeffbfff]
[ 0.638604][ T0] PM: hibernation: Registered nosave memory: [mem 0xfeffc000-0xfeffffff]
[ 0.643479][ T0] PM: hibernation: Registered nosave memory: [mem 0xff000000-0xfffbffff]
[ 0.648370][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffc0000-0xffffffff]
[ 0.653232][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices
[ 0.657231][ T0] Booting paravirtualized kernel on KVM
[ 0.660413][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.718926][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:8 nr_node_ids:2
[ 0.726125][ T0] percpu: Embedded 74 pages/cpu s264968 r8192 d29944 u1048576
[ 0.730756][ T0] kvm-guest: PV spinlocks enabled
[ 0.733655][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.738460][ T0] Kernel command line: earlyprintk=serial net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 binder.debug_mask=0 rcupdate.rcu_expedited=1 rcupdate.rcu_cpu_stall_cputime=1 no_hash_pointers page_owner=on sysctl.vm.nr_hugepages=4 sysctl.vm.nr_overcommit_hugepages=4 secretmem.enable=1 sysctl.max_rcu_stall_to_panic=1 msr.allow_writes=off coredump_filter=0xffff root=/dev/sda console=ttyS0 vsyscall=native numa=fake=2 kvm-intel.nested=1 spec_store_bypass_disable=prctl nopcid vivid.n_devs=64 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=32 rose.rose_ndevs=32 smp.csd_lock_timeout=100000 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 dummy_hcd.num=32 max_loop=32 nbds_max=32 panic_on_warn
[ 0.742162][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl nbds_max=32", will be passed to user space.
[ 0.803279][ T0] random: crng init done
[ 0.805698][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes
[ 0.810991][ T0] Fallback order for Node 0: 0 1
[ 0.811005][ T0] Fallback order for Node 1: 1 0
[ 0.811018][ T0] Built 2 zonelists, mobility grouping on. Total pages: 1048443
[ 0.820351][ T0] Policy zone: Normal
[ 0.823022][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off
[ 0.827048][ T0] stackdepot: allocating hash table via alloc_large_system_hash
[ 0.831135][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear)
[ 0.840167][ T0] software IO TLB: area num 8.
[ 1.186149][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=2
[ 1.241566][ T0] allocated 83886080 bytes of page_ext
[ 1.244557][ T0] Node 0, zone DMA: page owner found early allocated 0 pages
[ 1.259479][ T0] Node 0, zone DMA32: page owner found early allocated 10355 pages
[ 1.270278][ T0] Node 1, zone Normal: page owner found early allocated 10243 pages
[ 1.275525][ T0] Dynamic Preempt: full
[ 1.278907][ T0] Running RCU self tests
[ 1.281195][ T0] Running RCU synchronous self tests
[ 1.284047][ T0] rcu: Preemptible hierarchical RCU implementation.
[ 1.287596][ T0] rcu: RCU lockdep checking is enabled.
[ 1.290603][ T0] rcu: RCU callback double-/use-after-free debug is enabled.
[ 1.294614][ T0] rcu: RCU debug extended QS entry/exit.
[ 1.297675][ T0] All grace periods are expedited (rcu_expedited).
[ 1.301230][ T0] Trampoline variant of Tasks RCU enabled.
[ 1.304355][ T0] Tracing variant of Tasks RCU enabled.
[ 1.307361][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 1.311998][ T0] Running RCU synchronous self tests
[ 1.314858][ T0] RCU Tasks: Setting shift to 3 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=8.
[ 1.320011][ T0] RCU Tasks Trace: Setting shift to 3 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=8.
[ 1.413544][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16
[ 1.417998][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[ 1.422501][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88816da00000-0xffff88816dc00000
[ 1.452776][ T0] Console: colour VGA+ 80x25
[ 1.455468][ T0] printk: legacy console [ttyS0] enabled
[ 1.455468][ T0] printk: legacy console [ttyS0] enabled
[ 1.461552][ T0] printk: legacy bootconsole [earlyser0] disabled
[ 1.461552][ T0] printk: legacy bootconsole [earlyser0] disabled
[ 1.468502][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 1.473211][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 1.475923][ T0] ... MAX_LOCK_DEPTH: 48
[ 1.478695][ T0] ... MAX_LOCKDEP_KEYS: 8192
[ 1.481553][ T0] ... CLASSHASH_SIZE: 4096
[ 1.484403][ T0] ... MAX_LOCKDEP_ENTRIES: 1048576
[ 1.487406][ T0] ... MAX_LOCKDEP_CHAINS: 1048576
[ 1.490409][ T0] ... CHAINHASH_SIZE: 524288
[ 1.493349][ T0] memory used by lock dependency info: 106625 kB
[ 1.496847][ T0] memory used for stack traces: 8320 kB
[ 1.499919][ T0] per task-struct memory footprint: 1920 bytes
[ 1.503473][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl
[ 1.510107][ T0] ACPI: Core revision 20240827
[ 1.513638][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns
[ 1.519704][ T0] APIC: Switch to symmetric I/O mode setup
[ 1.522913][ T0] DMAR: Host address width 39
[ 1.525474][ T0] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
[ 1.528986][ T0] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap d2008c22260206 ecap f00f5e
[ 1.534044][ T0] DMAR: ATSR flags: 0x1
[ 1.536335][ T0] DMAR-IR: IOAPIC id 0 under DRHD base 0xfed90000 IOMMU 0
[ 1.540418][ T0] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping.
[ 1.548667][ T0] DMAR-IR: Enabled IRQ remapping in x2apic mode
[ 1.552114][ T0] x2apic enabled
[ 1.554491][ T0] APIC: Switched APIC routing to: cluster x2apic
[ 1.557962][ T0] kvm-guest: APIC: send_IPI_mask() replaced with kvm_send_ipi_mask()
[ 1.562568][ T0] kvm-guest: APIC: send_IPI_mask_allbutself() replaced with kvm_send_ipi_mask_allbutself()
[ 1.567982][ T0] kvm-guest: setup PV IPIs
[ 1.581704][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 1.585771][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x257a52d4118, max_idle_ns: 440795307231 ns
[ 1.592018][ T0] Calibrating delay loop (skipped) preset value.. 5200.04 BogoMIPS (lpj=26000240)
[ 1.598053][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated
[ 1.602772][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 1.606122][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
[ 1.612067][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization
[ 1.617214][ T0] Spectre V2 : WARNING: Unprivileged eBPF is enabled with eIBRS on, data leaks possible via Spectre v2 BHB attacks!
[ 1.622026][ T0] Spectre V2 : Spectre BHI mitigation: SW BHB clearing on syscall and VM exit
[ 1.626659][ T0] Spectre V2 : Mitigation: Enhanced / Automatic IBRS
[ 1.632013][ T0] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch
[ 1.636821][ T0] Spectre V2 : Spectre v2 / PBRSB-eIBRS: Retire a single CALL on VMEXIT
[ 1.641224][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier
[ 1.642068][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl
[ 1.647090][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[ 1.652014][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[ 1.655416][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[ 1.662016][ T0] x86/fpu: Supporting XSAVE feature 0x020: 'AVX-512 opmask'
[ 1.665506][ T0] x86/fpu: Supporting XSAVE feature 0x040: 'AVX-512 Hi256'
[ 1.668910][ T0] x86/fpu: Supporting XSAVE feature 0x080: 'AVX-512 ZMM_Hi256'
[ 1.672015][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
[ 1.675340][ T0] x86/fpu: xstate_offset[5]: 832, xstate_sizes[5]: 64
[ 1.678673][ T0] x86/fpu: xstate_offset[6]: 896, xstate_sizes[6]: 512
[ 1.682014][ T0] x86/fpu: xstate_offset[7]: 1408, xstate_sizes[7]: 1024
[ 1.685374][ T0] x86/fpu: Enabled xstate features 0xe7, context size is 2432 bytes, using 'compacted' format.
[ 1.879449][ T0] Freeing SMP alternatives memory: 124K
[ 1.882022][ T0] pid_max: default: 32768 minimum: 301
[ 1.884916][ T0] LSM: initializing lsm=lockdown,capability,landlock,yama,safesetid,tomoyo,selinux,bpf,ima,evm
[ 1.890201][ T0] landlock: Up and running.
[ 1.892017][ T0] Yama: becoming mindful.
[ 1.894319][ T0] TOMOYO Linux initialized
[ 1.896440][ T0] SELinux: Initializing.
[ 1.900834][ T0] LSM support for eBPF active
[ 1.904266][ T0] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage)
[ 1.909837][ T0] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc hugepage)
[ 1.912180][ T0] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes, vmalloc)
[ 1.916220][ T0] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes, vmalloc)
[ 1.924405][ T0] Running RCU synchronous self tests
[ 1.926906][ T0] Running RCU synchronous self tests
[ 1.932624][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.60GHz (family: 0x6, model: 0x6a, stepping: 0x6)
[ 1.939802][ T1] Running RCU Tasks wait API self tests
[ 2.052170][ T1] Running RCU Tasks Trace wait API self tests
[ 2.055195][ T1] Performance Events: unsupported p6 CPU model 106 no PMU driver, software events only.
[ 2.059975][ T1] signal: max sigframe size: 3632
[ 2.062509][ T1] rcu: Hierarchical SRCU implementation.
[ 2.065211][ T1] rcu: Max phase no-delay instances is 1000.
[ 2.068674][ T1] Timer migration: 2 hierarchy levels; 8 children per group; 1 crossnode level
[ 2.072179][ T15] Callback from call_rcu_tasks_trace() invoked.
[ 2.078054][ T1] NMI watchdog: Perf NMI watchdog permanently disabled
[ 2.082536][ T1] smp: Bringing up secondary CPUs ...
[ 2.086533][ T1] smpboot: x86: Booting SMP configuration:
[ 2.089356][ T1] .... node #0, CPUs: #2
[ 2.092529][ T22] ------------[ cut here ]------------
[ 2.096008][ T22] workqueue: work disable count underflowed
[ 2.099729][ T22] WARNING: CPU: 2 PID: 22 at kernel/workqueue.c:4317 enable_work+0x2fa/0x340
[ 2.102006][ T22] Modules linked in:
[ 2.102006][ T22] CPU: 2 UID: 0 PID: 22 Comm: cpuhp/2 Not tainted 6.13.0-rc6-syzkaller-g9d89551994a4-dirty #0
[ 2.102006][ T22] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 2.102006][ T22] RIP: 0010:enable_work+0x2fa/0x340
[ 2.102006][ T22] Code: 89 ee e8 49 d6 36 00 45 84 ed 0f 85 28 fe ff ff e8 9b db 36 00 c6 05 f2 9f e4 0e 01 90 48 c7 c7 00 da 6b 8b e8 57 12 f7 ff 90 <0f> 0b 90 90 e9 05 fe ff ff 48 89 ef e8 e5 7f 99 00 e9 a9 fe ff ff
[ 2.102006][ T22] RSP: 0000:ffffc9000060fca0 EFLAGS: 00010082
[ 2.102006][ T22] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff815a5139
[ 2.102006][ T22] RDX: ffff88801d6dc880 RSI: ffffffff815a5146 RDI: 0000000000000001
[ 2.102006][ T22] RBP: ffff88806a838660 R08: 0000000000000001 R09: 0000000000000000
[ 2.102006][ T22] R10: 0000000000000000 R11: 0000000000000002 R12: 1ffff920000c1f95
[ 2.102006][ T22] R13: 0000000000000000 R14: 00000000000000c5 R15: ffffffff81dbfd90
[ 2.102006][ T22] FS: 0000000000000000(0000) GS:ffff88806a800000(0000) knlGS:0000000000000000
[ 2.102006][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.102006][ T22] CR2: 0000000000000000 CR3: 000000000df7e000 CR4: 0000000000350ef0
[ 2.102006][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2.102006][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2.102006][ T22] Call Trace:
[ 2.102006][ T22]
[ 2.102006][ T22] ? __warn+0xea/0x3c0
[ 2.102006][ T22] ? enable_work+0x2fa/0x340
[ 2.102006][ T22] ? report_bug+0x3c0/0x580
[ 2.102006][ T22] ? handle_bug+0x54/0xa0
[ 2.102006][ T22] ? exc_invalid_op+0x17/0x50
[ 2.102006][ T22] ? asm_exc_invalid_op+0x1a/0x20
[ 2.102006][ T22] ? __pfx_vmstat_cpu_online+0x10/0x10
[ 2.102006][ T22] ? __warn_printk+0x199/0x350
[ 2.102006][ T22] ? __warn_printk+0x1a6/0x350
[ 2.102006][ T22] ? enable_work+0x2fa/0x340
[ 2.102006][ T22] ? __pfx_enable_work+0x10/0x10
[ 2.102006][ T22] vmstat_cpu_online+0x83/0xf0
[ 2.102006][ T22] cpuhp_invoke_callback+0x3d0/0xa10
[ 2.102006][ T22] ? __pfx_vmstat_cpu_online+0x10/0x10
[ 2.102006][ T22] ? lock_acquire.part.0+0x350/0x380
[ 2.102006][ T22] ? cpuhp_next_state+0x100/0x1c0
[ 2.102006][ T22] cpuhp_thread_fun+0x480/0x6f0
[ 2.102006][ T22] ? __pfx_cpuhp_thread_fun+0x10/0x10
[ 2.102006][ T22] ? __pfx_cpuhp_thread_fun+0x10/0x10
[ 2.102006][ T22] ? smpboot_thread_fn+0x59d/0xa30
[ 2.102006][ T22] smpboot_thread_fn+0x661/0xa30
[ 2.102006][ T22] ? __kthread_parkme+0x148/0x220
[ 2.102006][ T22] ? __pfx_smpboot_thread_fn+0x10/0x10
[ 2.102006][ T22] kthread+0x2c1/0x3a0
[ 2.102006][ T22] ? _raw_spin_unlock_irq+0x23/0x50
[ 2.102006][ T22] ? __pfx_kthread+0x10/0x10
[ 2.102006][ T22] ret_from_fork+0x45/0x80
[ 2.102006][ T22] ? __pfx_kthread+0x10/0x10
[ 2.102006][ T22] ret_from_fork_asm+0x1a/0x30
[ 2.102006][ T22]
[ 2.102006][ T22] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 2.102006][ T22] CPU: 2 UID: 0 PID: 22 Comm: cpuhp/2 Not tainted 6.13.0-rc6-syzkaller-g9d89551994a4-dirty #0
[ 2.102006][ T22] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 2.102006][ T22] Call Trace:
[ 2.102006][ T22]
[ 2.102006][ T22] dump_stack_lvl+0x3d/0x1f0
[ 2.102006][ T22] panic+0x71d/0x800
[ 2.102006][ T22] ? __pfx_panic+0x10/0x10
[ 2.102006][ T22] ? show_trace_log_lvl+0x29d/0x3d0
[ 2.102006][ T22] ? check_panic_on_warn+0x1f/0xb0
[ 2.102006][ T22] ? enable_work+0x2fa/0x340
[ 2.102006][ T22] check_panic_on_warn+0xab/0xb0
[ 2.102006][ T22] __warn+0xf6/0x3c0
[ 2.102006][ T22] ? enable_work+0x2fa/0x340
[ 2.102006][ T22] report_bug+0x3c0/0x580
[ 2.102006][ T22] handle_bug+0x54/0xa0
[ 2.102006][ T22] exc_invalid_op+0x17/0x50
[ 2.102006][ T22] asm_exc_invalid_op+0x1a/0x20
[ 2.102006][ T22] RIP: 0010:enable_work+0x2fa/0x340
[ 2.102006][ T22] Code: 89 ee e8 49 d6 36 00 45 84 ed 0f 85 28 fe ff ff e8 9b db 36 00 c6 05 f2 9f e4 0e 01 90 48 c7 c7 00 da 6b 8b e8 57 12 f7 ff 90 <0f> 0b 90 90 e9 05 fe ff ff 48 89 ef e8 e5 7f 99 00 e9 a9 fe ff ff
[ 2.102006][ T22] RSP: 0000:ffffc9000060fca0 EFLAGS: 00010082
[ 2.102006][ T22] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff815a5139
[ 2.102006][ T22] RDX: ffff88801d6dc880 RSI: ffffffff815a5146 RDI: 0000000000000001
[ 2.102006][ T22] RBP: ffff88806a838660 R08: 0000000000000001 R09: 0000000000000000
[ 2.102006][ T22] R10: 0000000000000000 R11: 0000000000000002 R12: 1ffff920000c1f95
[ 2.102006][ T22] R13: 0000000000000000 R14: 00000000000000c5 R15: ffffffff81dbfd90
[ 2.102006][ T22] ? __pfx_vmstat_cpu_online+0x10/0x10
[ 2.102006][ T22] ? __warn_printk+0x199/0x350
[ 2.102006][ T22] ? __warn_printk+0x1a6/0x350
[ 2.102006][ T22] ? __pfx_enable_work+0x10/0x10
[ 2.102006][ T22] vmstat_cpu_online+0x83/0xf0
[ 2.102006][ T22] cpuhp_invoke_callback+0x3d0/0xa10
[ 2.102006][ T22] ? __pfx_vmstat_cpu_online+0x10/0x10
[ 2.102006][ T22] ? lock_acquire.part.0+0x350/0x380
[ 2.102006][ T22] ? cpuhp_next_state+0x100/0x1c0
[ 2.102006][ T22] cpuhp_thread_fun+0x480/0x6f0
[ 2.102006][ T22] ? __pfx_cpuhp_thread_fun+0x10/0x10
[ 2.102006][ T22] ? __pfx_cpuhp_thread_fun+0x10/0x10
[ 2.102006][ T22] ? smpboot_thread_fn+0x59d/0xa30
[ 2.102006][ T22] smpboot_thread_fn+0x661/0xa30
[ 2.102006][ T22] ? __kthread_parkme+0x148/0x220
[ 2.102006][ T22] ? __pfx_smpboot_thread_fn+0x10/0x10
[ 2.102006][ T22] kthread+0x2c1/0x3a0
[ 2.102006][ T22] ? _raw_spin_unlock_irq+0x23/0x50
[ 2.102006][ T22] ? __pfx_kthread+0x10/0x10
[ 2.102006][ T22] ret_from_fork+0x45/0x80
[ 2.102006][ T22] ? __pfx_kthread+0x10/0x10
[ 2.102006][ T22] ret_from_fork_asm+0x1a/0x30
[ 2.102006][ T22]
[ 2.102006][ T22] Rebooting in 86400 seconds..
syzkaller build log:
go env (err=)
GO111MODULE='auto'
GOARCH='amd64'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.22.7'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build3770409158=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at d3ccff6372
nothing to commit, working tree clean
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
go fmt ./sys/... >/dev/null
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=d3ccff6372e07c6aabd02b5da419aa6492b5f0ad -X 'github.com/google/syzkaller/prog.gitRevisionDate=20241226-091248'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_amd64
g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \
-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"d3ccff6372e07c6aabd02b5da419aa6492b5f0ad\"
/usr/bin/ld: /tmp/cc7jjcOI.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking