WARNING in __alloc_workqueue input: Power Button as /devices/platform/LNXPWRBN:00/input/input0 ACPI: button: Power Button [PWRF] input: Sleep Button as /devices/platform/LNXSLPBN:00/input/input1 ACPI: button: Sleep Button [SLPF] ioatdma: Intel(R) QuickData Technology Driver 5.00 ACPI: \_SB_.LNKC: Enabled at IRQ 11 virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver ACPI: \_SB_.LNKD: Enabled at IRQ 10 virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver ACPI: \_SB_.LNKB: Enabled at IRQ 10 virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver N_HDLC line discipline registered with maxframe=4096 Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled 00:02: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A 00:03: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A 00:04: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A 00:05: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A Non-volatile memory driver v1.3 usbcore: registered new interface driver xillyusb ACPI: bus type drm_connector registered [drm] Initialized vgem 1.0.0 for vgem on minor 0 [drm] Initialized vkms 1.0.0 for vkms on minor 1 Console: switching to colour frame buffer device 128x48 faux_driver vkms: [drm] fb0: vkmsdrmfb frame buffer device usbcore: registered new interface driver udl usbcore: registered new interface driver gm12u320 usbcore: registered new interface driver gud brd: module loaded loop: module loaded zram: Added device: zram0 null_blk: disk nullb0 created null_blk: module loaded Guest personality initialized and is inactive VMCI host device registered (name=vmci, major=10, minor=267) Initialized host personality usbcore: registered new interface driver rtsx_usb usbcore: registered new interface driver viperboard usbcore: registered new interface driver dln2 usbcore: registered new interface driver pn533_usb nfcsim 0.2 initialized usbcore: registered new interface driver port100 usbcore: registered new interface driver nfcmrvl Loading iSCSI transport class v2.0-870. virtio_scsi virtio0: 1/0/0 default/read/poll queues scsi host0: Virtio SCSI HBA blk-mq: reduced tag depth to 10240 st: Version 20160209, fixed bufsize 32768, s/g segs 256 ------------[ cut here ]------------ workqueue: nvme_tcp_wq is using neither WQ_PERCPU or WQ_UNBOUND. Setting WQ_PERCPU. WARNING: kernel/workqueue.c:5856 at __alloc_workqueue+0x1d02/0x2070 kernel/workqueue.c:5855, CPU#1: swapper/0/1 Modules linked in: CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:__alloc_workqueue+0x1d07/0x2070 kernel/workqueue.c:5855 Code: e9 36 f9 ff ff e8 a9 a3 37 00 e9 05 fb ff ff e8 9f a3 37 00 e9 92 fb ff ff e8 95 a3 37 00 48 8d 3d 8e 1b 02 0e 48 8b 74 24 20 <67> 48 0f b9 3a 81 cd 00 01 00 00 e9 88 e5 ff ff e8 74 a3 37 00 48 RSP: 0000:ffffc900000677a8 EFLAGS: 00010293 RAX: ffffffff818ddabb RBX: 0000000000000000 RCX: ffff88801cec5d00 RDX: 0000000000000000 RSI: ffff888027d90168 RDI: ffffffff8f8ff650 RBP: 0000000000000058 R08: ffff88801cec5d00 R09: 0000000000000002 R10: 0000000000000100 R11: 0000000000000102 R12: dffffc0000000000 R13: ffff888027d90000 R14: ffffc900000678c0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125fcd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000000ddb8000 CR4: 00000000003526f0 Call Trace: alloc_workqueue_va kernel/workqueue.c:5950 [inline] alloc_workqueue_noprof+0xe3/0x210 kernel/workqueue.c:5966 nvme_tcp_init_module+0x27/0x100 drivers/nvme/host/tcp.c:3050 do_one_initcall+0x250/0x870 init/main.c:1347 do_initcall_level+0x104/0x190 init/main.c:1409 do_initcalls+0x59/0xa0 init/main.c:1425 kernel_init_freeable+0x2a6/0x3e0 init/main.c:1658 kernel_init+0x1d/0x1d0 init/main.c:1548 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---------------- Code disassembly (best guess): 0: e9 36 f9 ff ff jmp 0xfffff93b 5: e8 a9 a3 37 00 call 0x37a3b3 a: e9 05 fb ff ff jmp 0xfffffb14 f: e8 9f a3 37 00 call 0x37a3b3 14: e9 92 fb ff ff jmp 0xfffffbab 19: e8 95 a3 37 00 call 0x37a3b3 1e: 48 8d 3d 8e 1b 02 0e lea 0xe021b8e(%rip),%rdi # 0xe021bb3 25: 48 8b 74 24 20 mov 0x20(%rsp),%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 81 cd 00 01 00 00 or $0x100,%ebp 35: e9 88 e5 ff ff jmp 0xffffe5c2 3a: e8 74 a3 37 00 call 0x37a3b3 3f: 48 rex.W failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "root@10.128.10.11" "pwd"]: exit status 255 ssh: connect to host 10.128.10.11 port 22: Connection timed out Pseudo-terminal will not be allocated because stdin is not a terminal. Warning: Permanently added '[us-central1-ssh-serialport.googleapis.com]:9600' (ECDSA) to the list of known hosts. SeaBIOS (version 1.8.2-google) Total RAM Size = 0x0000000200000000 = 8192 MiB CPUs found: 2 Max CPUs supported: 2 SeaBIOS (version 1.8.2-google) Machine UUID dfc5a731-b05d-2e78-daf2-616cdfb761a4 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f25d0: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Sending Seabios boot VM event. Booting from Hard Disk 0... [ 0.000000][ T0] Linux version syzkaller (syzkaller@syzkaller) (Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8) #0 SMP PREEMPT_RT now [ 0.000000][ T0] Command line: BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] x86/CPU: Model not found in latest microcode list [ 0.000000][ T0] BIOS-provided physical RAM map: [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] System RAM [ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] device reserved [ 0.000000][ T0] BIOS-e820: [gap 0x00000000000a0000-0x00000000000effff] [ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] device reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] System RAM [ 0.000000][ T0] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] device reserved [ 0.000000][ T0] BIOS-e820: [gap 0x00000000c0000000-0x00000000fffbbfff] [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] device reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000023fffffff] System RAM [ 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] Hash pointers mode set to never. [ 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] DMI: SMBIOS 2.4 present. [ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 0.000000][ T0] DMI: Memory slots populated: 1/1 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000004][ T0] kvm-clock: using sched offset of 4793415467 cycles [ 0.000011][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000031][ T0] tsc: Detected 2199.998 MHz processor [ 0.003981][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.004029][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs [ 0.004040][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.004099][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.009024][ T0] found SMP MP-table at [mem 0x000f2890-0x000f289f] [ 0.009049][ T0] Using GB pages for direct mapping [ 0.012727][ T0] ACPI: Early table checksum verification disabled [ 0.012751][ T0] ACPI: RSDP 0x00000000000F2610 000014 (v00 Google) [ 0.012768][ T0] ACPI: RSDT 0x00000000BFFFFFB0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.012790][ T0] ACPI: FACP 0x00000000BFFFF370 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.012816][ T0] ACPI: DSDT 0x00000000BFFFD900 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.012835][ T0] ACPI: FACS 0x00000000BFFFD8C0 000040 [ 0.012849][ T0] ACPI: FACS 0x00000000BFFFD8C0 000040 [ 0.012863][ T0] ACPI: SRAT 0x00000000BFFFFEA0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.012882][ T0] ACPI: APIC 0x00000000BFFFFDF0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.012901][ T0] ACPI: SSDT 0x00000000BFFFF470 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.012924][ T0] ACPI: WAET 0x00000000BFFFFE70 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.012941][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff370-0xbffff463] [ 0.012948][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd900-0xbffff363] [ 0.012955][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd8c0-0xbfffd8ff] [ 0.012962][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd8c0-0xbfffd8ff] [ 0.012968][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffea0-0xbfffff67] [ 0.012974][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdf0-0xbffffe65] [ 0.012981][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff470-0xbffffdef] [ 0.012987][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe70-0xbffffe97] [ 0.013120][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.013130][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.013138][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.013148][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00001000-0xbfffffff] [ 0.013160][ T0] NUMA: Node 0 [mem 0x00001000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00001000-0x23fffffff] [ 0.013182][ T0] Faking node 0 at [mem 0x0000000000001000-0x0000000140000fff] (5120MB) [ 0.013190][ T0] Faking node 1 at [mem 0x0000000140001000-0x000000023fffffff] (4095MB) [ 0.013284][ T0] NODE_DATA(0) allocated [mem 0x13fffac80-0x140000fff] [ 0.014035][ T0] NODE_DATA(1) allocated [mem 0x23fff6c80-0x23fffcfff] [ 0.295456][ T0] KernelAddressSanitizer initialized (generic) [ 0.296227][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.296263][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.296401][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.296415][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.296424][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.296434][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.296442][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.296461][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.296476][ T0] CPU topo: Max. logical packages: 1 [ 0.296481][ T0] CPU topo: Max. logical nodes: 1 [ 0.296485][ T0] CPU topo: Num. nodes per package: 1 [ 0.296493][ T0] CPU topo: Max. logical dies: 1 [ 0.296497][ T0] CPU topo: Max. dies per package: 1 [ 0.296507][ T0] CPU topo: Max. threads per core: 2 [ 0.296512][ T0] CPU topo: Num. cores per package: 1 [ 0.296516][ T0] CPU topo: Num. threads per package: 2 [ 0.296520][ T0] CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs [ 0.296623][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.296633][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff] [ 0.296642][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xffffffff] [ 0.296664][ T0] [gap 0xc0000000-0xfffbbfff] available for PCI devices [ 0.296670][ T0] Booting paravirtualized kernel on KVM [ 0.296681][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.425589][ T0] Zone ranges: [ 0.425599][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.425611][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.425619][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.425627][ T0] Device empty [ 0.425632][ T0] Movable zone start for each node [ 0.425635][ T0] Early memory node ranges [ 0.425638][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.425645][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.425653][ T0] node 0: [mem 0x0000000100000000-0x0000000140000fff] [ 0.425659][ T0] node 1: [mem 0x0000000140001000-0x000000023fffffff] [ 0.425738][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x0000000140000fff] [ 0.425757][ T0] Initmem setup node 1 [mem 0x0000000140001000-0x000000023fffffff] [ 0.425817][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.426093][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.495501][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.565936][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2 [ 0.566598][ T0] percpu: Embedded 72 pages/cpu s254408 r8192 d32312 u1048576 [ 0.566765][ T0] kvm-guest: PV spinlocks enabled [ 0.566776][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.566795][ 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 \ [ 0.566826][ T0] Kernel command line: comedi.comedi_num_legacy_minors=4 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.571263][ T0] Unknown kernel command line parameters "nbds_max=32", will be passed to user space. [ 0.571334][ T0] random: crng init done [ 0.571338][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes [ 0.571545][ T0] software IO TLB: area num 2. [ 0.597958][ T0] Fallback order for Node 0: 0 1 [ 0.597980][ T0] Fallback order for Node 1: 1 0 [ 0.597995][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2097051 [ 0.598003][ T0] Policy zone: Normal [ 0.598651][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off [ 0.598660][ T0] stackdepot: allocating hash table via alloc_large_system_hash [ 0.598670][ T0] sserialport: Connected to syzkaller.us-central1-c.ci-upstream-linux-next-kasan-gce-root-test-job-1 port 1 (session ID: 13c6d9fb52c8db0f0cf763ad91145ac086ccf872c370c4d4096b2700c0dba0d5, active connections: 1). tackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear) [ 0.603089][ T0] stackdepot: allocating space for 8192 stack pools via memblock [ 1.238341][ T0] ********************************************************** [ 1.238351][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.238356][ T0] ** ** [ 1.238359][ T0] ** This system shows unhashed kernel memory addresses ** [ 1.238363][ T0] ** via the console, logs, and other interfaces. This ** [ 1.238366][ T0] ** might reduce the security of your system. ** [ 1.238370][ T0] ** ** [ 1.238373][ T0] ** If you see this message and you are not debugging ** [ 1.238377][ T0] ** the kernel, report this immediately to your system ** [ 1.238380][ T0] ** administrator! ** [ 1.238384][ T0] ** ** [ 1.238388][ T0] ** Use hash_pointers=always to force this mode off ** [ 1.238391][ T0] ** ** [ 1.238395][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.238398][ T0] ********************************************************** [ 1.241894][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.367996][ T0] allocated 167772160 bytes of page_ext [ 1.368036][ T0] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.382223][ T0] Node 0, zone DMA32: page owner found early allocated 21120 pages [ 1.386584][ T0] Node 0, zone Normal: page owner found early allocated 131 pages [ 1.398063][ T0] Node 1, zone Normal: page owner found early allocated 19848 pages [ 1.398548][ T0] Kernel/User page tables isolation: enabled [ 1.400769][ T0] Dynamic Preempt: full [ 1.401954][ T0] Running RCU self tests [ 1.401959][ T0] Running RCU synchronous self tests [ 1.401963][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.401967][ T0] rcu: RCU lockdep checking is enabled. [ 1.401970][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.401976][ T0] rcu: RCU priority boosting: priority 1 delay 500 ms. [ 1.401983][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.401987][ T0] rcu: RCU_SOFTIRQ processing moved to rcuc kthreads. [ 1.401990][ T0] rcu: RCU debug extended QS entry/exit. [ 1.401994][ T0] No expedited grace period (rcu_normal_after_boot). [ 1.401997][ T0] Trampoline variant of Tasks RCU enabled. [ 1.402001][ T0] Tracing variant of Tasks RCU enabled. [ 1.402004][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.402009][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.402181][ T0] Running RCU synchronous self tests [ 1.402215][ T0] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2. [ 1.562591][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.563743][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.564529][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823be00000-0xffff88823c000000 [ 1.566569][ T0] Console: colour VGA+ 80x25 [ 1.980337][ T0] printk: legacy console [ttyS0] enabled [ 1.980347][ T0] printk: legacy bootconsole [earlyser0] disabled [ 1.980426][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.980431][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.980435][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.980439][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.980443][ T0] ... CLASSHASH_SIZE: 4096 [ 1.980447][ T0] ... MAX_LOCKDEP_ENTRIES: 1048576 [ 1.980452][ T0] ... MAX_LOCKDEP_CHAINS: 1048576 [ 1.980456][ T0] ... CHAINHASH_SIZE: 524288 [ 1.980460][ T0] memory used by lock dependency info: 106625 kB [ 1.980464][ T0] memory used for stack traces: 8320 kB [ 1.980468][ T0] per task-struct memory footprint: 1920 bytes [ 1.980801][ T0] ACPI: Core revision 20260408 [ 1.982337][ T0] APIC: Switch to symmetric I/O mode setup [ 1.983111][ T0] x2apic enabled [ 1.987292][ T0] APIC: Switched APIC routing to: physical x2apic [ 1.995321][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.998147][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns [ 1.998198][ T0] Calibrating delay loop (skipped) preset value.. 4399.99 BogoMIPS (lpj=21999980) [ 1.998862][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.998868][ T0] Last level dTLB entries: 4KB 64, 2MB 32, 4MB 32, 1GB 4 [ 1.998928][ T0] mitigations: Enabled attack vectors: user_kernel, user_user, guest_host, guest_guest, SMT mitigations: auto [ 1.998946][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.998953][ T0] Spectre V2 : Mitigation: IBRS [ 1.998957][ T0] RETBleed: Mitigation: IBRS [ 1.998960][ T0] ITS: Mitigation: Aligned branch/return thunks [ 1.998965][ T0] Spectre V2 : User space: Mitigation: STIBP via prctl [ 1.998969][ T0] MDS: Mitigation: Clear CPU buffers [ 1.998973][ T0] TAA: Mitigation: Clear CPU buffers [ 1.998977][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.998982][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.998989][ T0] Spectre V2 : Spectre v2 / SpectreRSB: Filling RSB on context switch and VMEXIT [ 1.999011][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.999066][ T0] active return thunk: its_return_thunk [ 1.999089][ T0] Spectre V2 : Spectre BHI mitigation: SW BHB clearing on syscall and VM exit [ 1.999154][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 1.999163][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 1.999171][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 1.999180][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 1.999192][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 2.397644][ T0] pid_max: default: 32768 minimum: 301 [ 2.399816][ T0] landlock: Up and running. [ 2.399824][ T0] Yama: becoming mindful. [ 2.400358][ T0] TOMOYO Linux initialized [ 2.401933][ T0] AppArmor: AppArmor initialized [ 2.405166][ T0] LSM support for eBPF active [ 2.413287][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc hugepage) [ 2.416802][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage) [ 2.417332][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.417570][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.421081][ T0] VFS: Finished mounting rootfs on nullfs [ 2.427187][ T0] Running RCU synchronous self tests [ 2.427199][ T0] Running RCU synchronous self tests [ 2.548874][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 2.554569][ T1] Performance Events: unsupported CPU family 6 model 79 no PMU driver, software events only. [ 2.554737][ T1] signal: max sigframe size: 1776 [ 2.560021][ T1] rcu: Hierarchical SRCU implementation. [ 2.560030][ T1] rcu: Max phase no-delay instances is 1000. [ 2.588304][ T1] Timer migration: 1 hierarchy levels; 8 children per group; 0 crossnode level [ 2.814982][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.821163][ T1] smp: Bringing up secondary CPUs ... [ 2.834721][ T1] smpboot: x86: Booting SMP configuration: [ 2.834732][ T1] .... node #0, CPUs: #1 [ 2.842219][ T1] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. [ 2.842236][ T1] TAA CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/tsx_async_abort.html for more details. [ 2.842250][ T1] MMIO Stale Data CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/processor_mmio_stale_data.html for more details. [ 2.842384][ T1] smp: Brought up 2 nodes, 2 CPUs [ 2.842399][ T1] smpboot: Total of 2 processors activated (8799.99 BogoMIPS) [ 2.842818][ T1] Memory: 6466528K/8388204K available (167292K kernel code, 29639K rwdata, 39792K rodata, 25476K init, 129268K bss, 1733792K reserved, 0K cma-reserved) [ 2.851275][ T1] devtmpfs: initialized [ 2.869614][ T1] x86/mm: Memory block size: 128MB [ 2.972993][ T1] Running RCU synchronous self tests [ 2.973060][ T1] Running RCU synchronous self tests [ 2.973380][ T1] Running RCU Tasks wait API self tests [ 2.973380][ T1] Running RCU Tasks Trace wait API self tests [ 2.981187][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.981187][ T1] posixtimers hash table entries: 1024 (order: 6, 139264 bytes, vmalloc) [ 2.982504][ T1] futex hash table entries: 256 (49152 bytes on 2 NUMA nodes, total 96 KiB, linear). [ 2.996727][ T1] xor: automatically using best checksumming function avx [ 2.996727][ T1] PM: RTC time: 08:55:30, date: 2026-06-05 [ 3.018702][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 3.029256][ T10] Callback from call_rcu_tasks_trace() invoked. [ 3.033150][ T1] audit: initializing netlink subsys (disabled) [ 3.040615][ T38] audit: type=2000 audit(1780649730.083:1): state=initialized audit_enabled=0 res=1 [ 3.044773][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 3.054015][ T1] cpuidle: using governor menu [ 3.054015][ T1] NET: Registered PF_QIPCRTR protocol family [ 3.060381][ T1] Freeing SMP alternatives memory: 128K [ 3.064563][ T1] dca service started, version 1.12.1 [ 3.064880][ T1] PCI: Using configuration type 1 for base access [ 3.118469][ T1] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages [ 3.118488][ T1] HugeTLB: 16380 KiB vmemmap can be freed for a 1.00 GiB page [ 3.118505][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 3.118517][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 3.165117][ T1] raid6: using avx2x2 recovery algorithm [ 3.165133][ T1] raid6: skipped pq benchmark and selected avx2x4 [ 3.176021][ T1] ACPI: Added _OSI(Module Device) [ 3.176040][ T1] ACPI: Added _OSI(Processor Device) [ 3.176052][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 3.432421][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 3.472947][ T1] ACPI: \_SB_: platform _OSC: OS support mask [000e7eee] [ 3.512717][ T1] ACPI: Interpreter enabled [ 3.513793][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 3.513876][ T1] ACPI: Using IOAPIC for interrupt routing [ 3.514622][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.514637][ T1] PCI: Ignoring E820 reservations for host bridge windows [ 3.535559][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.909400][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.909537][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 3.909562][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 3.910017][ T1] acpi PNP0A03:00: _OSC: platform retains control of PCIe features (AE_ERROR) [ 3.910837][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended configuration space under this bridge [ 3.961198][ T1] PCI host bridge to bus 0000:00 [ 3.961218][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 3.961718][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.961762][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.961803][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.961845][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 3.961902][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.962678][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 conventional PCI endpoint [ 3.988463][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 conventional PCI endpoint [ 4.008283][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 conventional PCI endpoint [ 4.013371][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.029672][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 conventional PCI endpoint [ 4.034148][ T1] pci 0000:00:03.0: BAR 0 [io 0xc000-0xc03f] [ 4.034200][ T1] pci 0000:00:03.0: BAR 1 [mem 0xfe800000-0xfe80007f] [ 4.053419][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 conventional PCI endpoint [ 4.061994][ T1] pci 0000:00:04.0: BAR 0 [io 0xc040-0xc07f] [ 4.062043][ T1] pci 0000:00:04.0: BAR 1 [mem 0xfe801000-0xfe80107f] [ 4.078329][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 conventional PCI endpoint [ 4.086742][ T1] pci 0000:00:05.0: BAR 0 [mem 0xfe000000-0xfe7fffff] [ 4.087793][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 4.108926][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 conventional PCI endpoint [ 4.113062][ T1] pci 0000:00:06.0: BAR 0 [io 0xc080-0xc09f] [ 4.128783][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 conventional PCI endpoint [ 4.132811][ T1] pci 0000:00:07.0: BAR 0 [io 0xc0a0-0xc0bf] [ 4.132871][ T1] pci 0000:00:07.0: BAR 1 [mem 0xfe802000-0xfe80203f] [ 4.210055][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 4.223379][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 4.236769][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 4.251357][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 4.256639][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 4.299859][ T1] iommu: Default domain type: Translated [ 4.299859][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 4.316168][ T1] SCSI subsystem initialized [ 4.322790][ T1] ACPI: bus type USB registered [ 4.324367][ T1] usbcore: registered new interface driver usbfs [ 4.325133][ T1] usbcore: registered new interface driver hub [ 4.325621][ T1] usbcore: registered new device driver usb [ 4.339934][ T1] mc: Linux media interface: v0.10 [ 4.340465][ T1] videodev: Linux video capture interface: v2.00 [ 4.342124][ T1] pps_core: LinuxPPS API ver. 1 registered [ 4.342136][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.342338][ T1] PTP clock support registered [ 4.360058][ T1] EDAC MC: Ver: 3.0.0 [ 4.376201][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 4.415806][ T1] Bluetooth: Core ver 2.22 [ 4.415806][ T1] NET: Registered PF_BLUETOOTH protocol family [ 4.415806][ T1] Bluetooth: HCI device and connection manager initialized [ 4.415806][ T1] Bluetooth: HCI socket layer initialized [ 4.415806][ T1] Bluetooth: L2CAP socket layer initialized [ 4.415806][ T1] Bluetooth: SCO socket layer initialized [ 4.415806][ T1] NET: Registered PF_ATMPVC protocol family [ 4.415806][ T1] NET: Registered PF_ATMSVC protocol family [ 4.415806][ T1] NetLabel: Initializing [ 4.415806][ T1] NetLabel: domain hash size = 128 [ 4.415806][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 4.416370][ T1] NetLabel: unlabeled traffic allowed by default [ 4.448925][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 4.449637][ T1] NET: Registered PF_NFC protocol family [ 4.449844][ T1] mctp: management component transport protocol core [ 4.449856][ T1] NET: Registered PF_MCTP protocol family [ 4.450659][ T1] PCI: Using ACPI for IRQ routing [ 4.451118][ T1] e820: register RAM buffer resource [mem 0x0009fc00-0x0009ffff] [ 4.451229][ T1] e820: register RAM buffer resource [mem 0xbfffd000-0xbfffffff] [ 4.452885][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 4.452904][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 4.452918][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 4.452960][ T1] vgaarb: loaded [ 4.498988][ T1] clocksource: Switched to clocksource kvm-clock [ 4.512098][ T1] VFS: Disk quotas dquot_6.6.0 [ 4.512357][ T1] VFS: Dquot-cache hash table entries: 512 (4096 bytes) [ 4.536691][ T1] netfs: FS-Cache loaded [ 4.539361][ T1] CacheFiles: Loaded [ 4.541134][ T1] TOMOYO: 2.6.0 [ 4.541144][ T1] Mandatory Access Control activated. [ 4.558141][ T1] AppArmor: AppArmor Filesystem Enabled [ 4.559650][ T1] pnp: PnP ACPI init [ 4.610089][ T1] pnp: PnP ACPI: found 6 devices [ 4.734310][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.742178][ T1] NET: Registered PF_INET protocol family [ 4.747765][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 4.767662][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 8, 557056 bytes, vmalloc) [ 4.768803][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, vmalloc) [ 4.769981][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 4.803902][ T1] TCP bind hash table entries: 65536 (order: 13, 17825792 bytes, vmalloc hugepage) [ 4.825818][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 4.829875][ T1] MPTCP token hash table entries: 8192 (order: 9, 1245184 bytes, vmalloc) [ 4.833628][ T1] UDP hash table entries: 4096 (order: 9, 1835008 bytes, vmalloc) [ 4.848303][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 4.859131][ T1] RPC: Registered named UNIX socket transport module. [ 4.859152][ T1] RPC: Registered udp transport module. [ 4.859165][ T1] RPC: Registered tcp transport module. [ 4.859176][ T1] RPC: Registered tcp-with-tls transport module. [ 4.859194][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 4.866870][ T1] NET: Registered PF_XDP protocol family [ 4.870552][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 4.870630][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 4.870690][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 4.872354][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 4.888794][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.890096][ T1] PCI: CLS 0 bytes, default 64 [ 4.891638][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.891659][ T1] software IO TLB: mapped [mem 0x00000000b4600000-0x00000000b8600000] (64MB) [ 4.906980][ T1] ACPI: bus type thunderbolt registered [ 4.931871][ T69] kworker/u8:4 (69) used greatest stack depth: 26152 bytes left [ 4.935810][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 5.029234][ T1] kvm_amd: CPU 1 isn't AMD or Hygon [ 5.029270][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns [ 5.030544][ T1] clocksource: Switched to clocksource tsc [ 5.085213][ T88] kworker/u8:3 (88) used greatest stack depth: 25864 bytes left [ 5.093631][ T1] Initialise system trusted keyrings [ 5.101262][ T1] workingset: timestamp_bits=40 (anon: 35) max_order=21 bucket_order=0 (anon: 0) [ 5.126991][ T1] DLM installed [ 5.139461][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 5.170637][ T1] NFS: Registering the id_resolver key type [ 5.170976][ T1] Key type id_resolver registered [ 5.170992][ T1] Key type id_legacy registered [ 5.171357][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 5.171588][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 5.190756][ T1] smbdirect: subsystem loading... [ 5.206952][ T1] smbdirect: subsystem loaded [ 5.226607][ T1] Key type cifs.spnego registered [ 5.226979][ T1] Key type cifs.idmap registered [ 5.233184][ T1] ntfs3: Enabled Linux POSIX ACLs support [ 5.233192][ T1] ntfs3: Read-only LZX/Xpress compression included [ 5.233545][ T1] efs: 1.0a - http://aeschi.ch.eu.org/efs/ [ 5.233717][ T1] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 5.251366][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 5.251683][ T1] QNX4 filesystem 0.2.3 registered. [ 5.251781][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 5.254182][ T1] fuse: init (API version 7.45) [ 5.272362][ T1] orangefs_debugfs_init: called with debug mask: :none: :0: [ 5.278839][ T1] orangefs_init: module version upstream loaded [ 5.279817][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 5.310934][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 5.326282][ T1] 9p: Installing v9fs 9p2000 file system support [ 5.328658][ T1] NILFS version 2 loaded [ 5.328668][ T1] befs: version: 0.9.3 [ 5.329750][ T1] ocfs2: Registered cluster interface o2cb [ 5.333826][ T1] ocfs2: Registered cluster interface user [ 5.340951][ T133] kworker/u8:3 (133) used greatest stack depth: 25480 bytes left [ 5.351372][ T1] OCFS2 User DLM kernel interface loaded [ 5.403622][ T1] gfs2: GFS2 installed [ 5.445090][ T1] ceph: loaded (mds proto 32) [ 5.460996][ T1] NET: Registered PF_ALG protocol family [ 5.461415][ T1] async_tx: api initialized (async) [ 5.461460][ T1] Key type asymmetric registered [ 5.461521][ T1] Asymmetric key parser 'x509' registered [ 5.461532][ T1] Asymmetric key parser 'pkcs8' registered [ 5.461543][ T1] Key type pkcs7_test registered [ 5.463712][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 239) [ 5.484379][ T1] io scheduler mq-deadline registered [ 5.484394][ T1] io scheduler kyber registered [ 5.491153][ T1] io scheduler bfq registered [ 5.533656][ T1] input: Power Button as /devices/platform/LNXPWRBN:00/input/input0 [ 5.545286][ T1] ACPI: button: Power Button [PWRF] [ 5.548343][ T1] input: Sleep Button as /devices/platform/LNXSLPBN:00/input/input1 [ 5.550528][ T1] ACPI: button: Sleep Button [SLPF] [ 5.597174][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 5.660868][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 5.661039][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 5.738705][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 5.738857][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 5.801060][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 5.801223][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 5.841434][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 6.938050][ T1] N_HDLC line discipline registered with maxframe=4096 [ 6.941470][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 6.962468][ T1] 00:02: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 6.993925][ T1] 00:03: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 7.026365][ T1] 00:04: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 7.054721][ T1] 00:05: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 7.110704][ T1] Non-volatile memory driver v1.3 [ 7.153337][ T1] usbcore: registered new interface driver xillyusb [ 7.167582][ T1] ACPI: bus type drm_connector registered [ 7.180512][ T1] [drm] Initialized vgem 1.0.0 for vgem on minor 0 [ 7.206672][ T1] [drm] Initialized vkms 1.0.0 for vkms on minor 1 [ 7.368821][ T1] Console: switching to colour frame buffer device 128x48 [ 7.431631][ T1] faux_driver vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 7.434824][ T1] usbcore: registered new interface driver udl [ 7.452416][ T1] usbcore: registered new interface driver gm12u320 [ 7.453341][ T1] usbcore: registered new interface driver gud [ 7.678016][ T1] brd: module loaded [ 8.236862][ T1] loop: module loaded [ 8.652397][ T1] zram: Added device: zram0 [ 8.686534][ T1] null_blk: disk nullb0 created [ 8.686553][ T1] null_blk: module loaded [ 8.694125][ T1] Guest personality initialized and is inactive [ 8.703586][ T1] VMCI host device registered (name=vmci, major=10, minor=267) [ 8.703606][ T1] Initialized host personality [ 8.710668][ T1] usbcore: registered new interface driver rtsx_usb [ 8.721833][ T1] usbcore: registered new interface driver viperboard [ 8.724106][ T1] usbcore: registered new interface driver dln2 [ 8.732328][ T1] usbcore: registered new interface driver pn533_usb [ 8.753669][ T1] nfcsim 0.2 initialized [ 8.756938][ T1] usbcore: registered new interface driver port100 [ 8.757759][ T1] usbcore: registered new interface driver nfcmrvl [ 8.781610][ T1] Loading iSCSI transport class v2.0-870. [ 8.809250][ T1] virtio_scsi virtio0: 1/0/0 default/read/poll queues [ 8.839803][ T1] scsi host0: Virtio SCSI HBA [ 8.840622][ T1] blk-mq: reduced tag depth to 10240 [ 9.123523][ T1] st: Version 20160209, fixed bufsize 32768, s/g segs 256 [ 9.148001][ T148] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 9.152096][ T1] ------------[ cut here ]------------ [ 9.152110][ T1] workqueue: nvme_tcp_wq is using neither WQ_PERCPU or WQ_UNBOUND. Setting WQ_PERCPU. [ 9.152131][ T1] WARNING: kernel/workqueue.c:5856 at __alloc_workqueue+0x1d02/0x2070, CPU#1: swapper/0/1 [ 9.152176][ T1] Modules linked in: [ 9.152219][ T1] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 9.152243][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 9.152262][ T1] RIP: 0010:__alloc_workqueue+0x1d07/0x2070 [ 9.152291][ T1] Code: e9 36 f9 ff ff e8 a9 a3 37 00 e9 05 fb ff ff e8 9f a3 37 00 e9 92 fb ff ff e8 95 a3 37 00 48 8d 3d 8e 1b 02 0e 48 8b 74 24 20 <67> 48 0f b9 3a 81 cd 00 01 00 00 e9 88 e5 ff ff e8 74 a3 37 00 48 [ 9.152309][ T1] RSP: 0000:ffffc900000677a8 EFLAGS: 00010293 [ 9.152327][ T1] RAX: ffffffff818ddabb RBX: 0000000000000000 RCX: ffff88801cec5d00 [ 9.152343][ T1] RDX: 0000000000000000 RSI: ffff888027d90168 RDI: ffffffff8f8ff650 [ 9.152364][ T1] RBP: 0000000000000058 R08: ffff88801cec5d00 R09: 0000000000000002 [ 9.152378][ T1] R10: 0000000000000100 R11: 0000000000000102 R12: dffffc0000000000 [ 9.152393][ T1] R13: ffff888027d90000 R14: ffffc900000678c0 R15: 0000000000000000 [ 9.152409][ T1] FS: 0000000000000000(0000) GS:ffff888125fcd000(0000) knlGS:0000000000000000 [ 9.152434][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.152447][ T1] CR2: 0000000000000000 CR3: 000000000ddb8000 CR4: 00000000003526f0 [ 9.152461][ T1] Call Trace: [ 9.152474][ T1] [ 9.152485][ T1] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 9.152512][ T1] ? rt_mutex_slowunlock+0x4a7/0x8b0 [ 9.152541][ T1] ? reacquire_held_locks+0x104/0x190 [ 9.152560][ T1] ? rt_spin_lock+0x1e0/0x400 [ 9.152595][ T1] alloc_workqueue_noprof+0xe3/0x210 [ 9.152627][ T1] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 9.152654][ T1] ? add_device_randomness+0xc1/0x100 [ 9.152682][ T1] ? __pfx_add_device_randomness+0x10/0x10 [ 9.152719][ T1] ? __pfx_nvme_fc_init_module+0x10/0x10 [ 9.152749][ T1] ? __pfx_nvme_tcp_init_module+0x10/0x10 [ 9.152780][ T1] nvme_tcp_init_module+0x27/0x100 [ 9.152813][ T1] do_one_initcall+0x250/0x870 [ 9.152842][ T1] ? __pfx_nvme_tcp_init_module+0x10/0x10 [ 9.152874][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 9.152902][ T1] ? ktime_get+0x1f5/0x220 [ 9.152933][ T1] ? clockevents_program_event+0x491/0x630 [ 9.152959][ T1] ? __pfx___schedule+0x10/0x10 [ 9.152995][ T1] ? irqentry_exit+0x218/0x8c0 [ 9.153021][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 9.153046][ T1] ? irqentry_exit+0x218/0x8c0 [ 9.153083][ T1] ? parameq+0xc0/0x170 [ 9.153114][ T1] ? __sanitizer_cov_trace_const_cmp1+0x8/0xa0 [ 9.153144][ T1] ? parameq+0x14d/0x170 [ 9.153180][ T1] ? irqentry_exit+0x218/0x8c0 [ 9.153205][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 9.153229][ T1] ? irqentry_exit+0x218/0x8c0 [ 9.153252][ T1] ? trace_irq_disable+0x3b/0x140 [ 9.153298][ T1] ? __pfx_init_grace+0x10/0x10 [ 9.153324][ T1] do_initcall_level+0x104/0x190 [ 9.153347][ T1] ? kernel_init+0x1d/0x1d0 [ 9.153380][ T1] do_initcalls+0x59/0xa0 [ 9.153402][ T1] kernel_init_freeable+0x2a6/0x3e0 [ 9.153426][ T1] ? __pfx_kernel_init+0x10/0x10 [ 9.153459][ T1] kernel_init+0x1d/0x1d0 [ 9.153488][ T1] ? __pfx_kernel_init+0x10/0x10 [ 9.153517][ T1] ret_from_fork+0x514/0xb70 [ 9.153549][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 9.153578][ T1] ? __switch_to+0xc79/0x1410 [ 9.153605][ T1] ? __pfx_kernel_init+0x10/0x10 [ 9.153639][ T1] ret_from_fork_asm+0x1a/0x30 [ 9.153687][ T1] [ 9.153714][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 9.153730][ T1] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 9.153753][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 9.153765][ T1] Call Trace: [ 9.153773][ T1] [ 9.153781][ T1] vpanic+0x56c/0xa60 [ 9.153813][ T1] ? __pfx__printk+0x10/0x10 [ 9.153835][ T1] ? __pfx_vpanic+0x10/0x10 [ 9.153864][ T1] ? is_bpf_text_address+0x292/0x2b0 [ 9.153898][ T1] ? is_bpf_text_address+0x26/0x2b0 [ 9.153939][ T1] panic+0xc5/0xd0 [ 9.153970][ T1] ? __pfx_panic+0x10/0x10 [ 9.154008][ T1] ? ret_from_fork_asm+0x1a/0x30 [ 9.154045][ T1] __warn+0x315/0x4c0 [ 9.154075][ T1] ? __alloc_workqueue+0x1d02/0x2070 [ 9.154105][ T1] ? __alloc_workqueue+0x1d02/0x2070 [ 9.154134][ T1] __report_bug+0x339/0x540 [ 9.154159][ T1] ? do_initcalls+0x59/0xa0 [ 9.154178][ T1] ? kernel_init_freeable+0x2a6/0x3e0 [ 9.154199][ T1] ? kernel_init+0x1d/0x1d0 [ 9.154234][ T1] ? __alloc_workqueue+0x1d02/0x2070 [ 9.154264][ T1] ? __pfx___report_bug+0x10/0x10 [ 9.154311][ T1] report_bug_entry+0x19a/0x290 [ 9.154339][ T1] ? __alloc_workqueue+0x1d07/0x2070 [ 9.154366][ T1] ? __alloc_workqueue+0x1d0c/0x2070 [ 9.154392][ T1] handle_bug+0xce/0x200 [ 9.154426][ T1] exc_invalid_op+0x1a/0x50 [ 9.154436][ T1] asm_exc_invalid_op+0x1a/0x20 [ 9.154436][ T1] RIP: 0010:__alloc_workqueue+0x1d07/0x2070 [ 9.154436][ T1] Code: e9 36 f9 ff ff e8 a9 a3 37 00 e9 05 fb ff ff e8 9f a3 37 00 e9 92 fb ff ff e8 95 a3 37 00 48 8d 3d 8e 1b 02 0e 48 8b 74 24 20 <67> 48 0f b9 3a 81 cd 00 01 00 00 e9 88 e5 ff ff e8 74 a3 37 00 48 [ 9.154436][ T1] RSP: 0000:ffffc900000677a8 EFLAGS: 00010293 [ 9.154436][ T1] RAX: ffffffff818ddabb RBX: 0000000000000000 RCX: ffff88801cec5d00 [ 9.154436][ T1] RDX: 0000000000000000 RSI: ffff888027d90168 RDI: ffffffff8f8ff650 [ 9.154436][ T1] RBP: 0000000000000058 R08: ffff88801cec5d00 R09: 0000000000000002 [ 9.154436][ T1] R10: 0000000000000100 R11: 0000000000000102 R12: dffffc0000000000 [ 9.154436][ T1] R13: ffff888027d90000 R14: ffffc900000678c0 R15: 0000000000000000 [ 9.154436][ T1] ? __alloc_workqueue+0x1cfb/0x2070 [ 9.154436][ T1] ? __alloc_workqueue+0x1cfb/0x2070 [ 9.154436][ T1] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 9.154436][ T1] ? rt_mutex_slowunlock+0x4a7/0x8b0 [ 9.154436][ T1] ? reacquire_held_locks+0x104/0x190 [ 9.154436][ T1] ? rt_spin_lock+0x1e0/0x400 [ 9.154436][ T1] alloc_workqueue_noprof+0xe3/0x210 [ 9.154436][ T1] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 9.154436][ T1] ? add_device_randomness+0xc1/0x100 [ 9.154436][ T1] ? __pfx_add_device_randomness+0x10/0x10 [ 9.154436][ T1] ? __pfx_nvme_fc_init_module+0x10/0x10 [ 9.154436][ T1] ? __pfx_nvme_tcp_init_module+0x10/0x10 [ 9.154436][ T1] nvme_tcp_init_module+0x27/0x100 [ 9.154436][ T1] do_one_initcall+0x250/0x870 [ 9.154436][ T1] ? __pfx_nvme_tcp_init_module+0x10/0x10 [ 9.154436][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 9.154436][ T1] ? ktime_get+0x1f5/0x220 [ 9.154436][ T1] ? clockevents_program_event+0x491/0x630 [ 9.154436][ T1] ? __pfx___schedule+0x10/0x10 [ 9.154436][ T1] ? irqentry_exit+0x218/0x8c0 [ 9.154436][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 9.154436][ T1] ? irqentry_exit+0x218/0x8c0 [ 9.154436][ T1] ? parameq+0xc0/0x170 [ 9.154436][ T1] ? __sanitizer_cov_trace_const_cmp1+0x8/0xa0 [ 9.154436][ T1] ? parameq+0x14d/0x170 [ 9.154436][ T1] ? irqentry_exit+0x218/0x8c0 [ 9.154436][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 9.154436][ T1] ? irqentry_exit+0x218/0x8c0 [ 9.154436][ T1] ? trace_irq_disable+0x3b/0x140 [ 9.154436][ T1] ? __pfx_init_grace+0x10/0x10 [ 9.154436][ T1] do_initcall_level+0x104/0x190 [ 9.154436][ T1] ? kernel_init+0x1d/0x1d0 [ 9.154436][ T1] do_initcalls+0x59/0xa0 [ 9.154436][ T1] kernel_init_freeable+0x2a6/0x3e0 [ 9.154436][ T1] ? __pfx_kernel_init+0x10/0x10 [ 9.154436][ T1] kernel_init+0x1d/0x1d0 [ 9.154436][ T1] ? __pfx_kernel_init+0x10/0x10 [ 9.154436][ T1] ret_from_fork+0x514/0xb70 [ 9.154436][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 9.154436][ T1] ? __switch_to+0xc79/0x1410 [ 9.154436][ T1] ? __pfx_kernel_init+0x10/0x10 [ 9.154436][ T1] ret_from_fork_asm+0x1a/0x30 [ 9.154436][ T1] [ 9.154436][ T1] Kernel Offset: disabled syzkaller build log: go env (err=) AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' CXX='g++' GCCGO='gccgo' GO111MODULE='auto' GOAMD64='v1' GOARCH='amd64' GOAUTH='netrc' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOCACHEPROG='' GODEBUG='' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFIPS140='off' GOFLAGS='' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build2776439891=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod' 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' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.26.0' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at c0460fcde70 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}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=c0460fcde7051a8d07612ec2a17718d3c3019bb0 -X github.com/google/syzkaller/prog.gitRevisionDate=20251022-142038" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=c0460fcde7051a8d07612ec2a17718d3c3019bb0 -X github.com/google/syzkaller/prog.gitRevisionDate=20251022-142038" ./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 touch .descriptions GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=c0460fcde7051a8d07612ec2a17718d3c3019bb0 -X github.com/google/syzkaller/prog.gitRevisionDate=20251022-142038" -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 -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"c0460fcde7051a8d07612ec2a17718d3c3019bb0\" /usr/bin/ld: /tmp/ccuU2fcQ.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking ./tools/check-syzos.sh 2>/dev/null