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@10.128.1.120" "pwd"]: exit status 255 ssh: connect to host 10.128.1.120 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. serialport: Connected to syzkaller.us-central1-c.ci-upstream-rust-kasan-gce-test-2 port 1 (session ID: fc8841862900a79c77b5c4bb7c8ca33bce2dce0c25229460cabb311afa5c62c4, active connections: 1). 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 e4aec99c-ac45-e3c3-a2eb-4bf9fa2cef5b 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 [ 0.000005][ T0] kvm-clock: using sched offset of 5267506978 cycles [ 0.000014][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000035][ T0] tsc: Detected 2199.998 MHz processor [ 0.003842][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.003893][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs [ 0.003905][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.003969][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.008794][ T0] found SMP MP-table at [mem 0x000f2890-0x000f289f] [ 0.008826][ T0] Using GB pages for direct mapping [ 0.012544][ T0] ACPI: Early table checksum verification disabled [ 0.012575][ T0] ACPI: RSDP 0x00000000000F2610 000014 (v00 Google) [ 0.012593][ T0] ACPI: RSDT 0x00000000BFFFFFB0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.012616][ T0] ACPI: FACP 0x00000000BFFFF370 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.012641][ T0] ACPI: DSDT 0x00000000BFFFD900 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.012659][ T0] ACPI: FACS 0x00000000BFFFD8C0 000040 [ 0.012673][ T0] ACPI: FACS 0x00000000BFFFD8C0 000040 [ 0.012686][ T0] ACPI: SRAT 0x00000000BFFFFEA0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.012704][ T0] ACPI: APIC 0x00000000BFFFFDF0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.012722][ T0] ACPI: SSDT 0x00000000BFFFF470 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.012740][ T0] ACPI: WAET 0x00000000BFFFFE70 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.012755][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff370-0xbffff463] [ 0.012763][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd900-0xbffff363] [ 0.012770][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd8c0-0xbfffd8ff] [ 0.012777][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd8c0-0xbfffd8ff] [ 0.012784][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffea0-0xbfffff67] [ 0.012791][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdf0-0xbffffe65] [ 0.012798][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff470-0xbffffdef] [ 0.012805][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe70-0xbffffe97] [ 0.012932][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.012943][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.012951][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.012962][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00001000-0xbfffffff] [ 0.012975][ T0] NUMA: Node 0 [mem 0x00001000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00001000-0x23fffffff] [ 0.012997][ T0] Faking node 0 at [mem 0x0000000000001000-0x0000000140000fff] (5120MB) [ 0.013006][ T0] Faking node 1 at [mem 0x0000000140001000-0x000000023fffffff] (4095MB) [ 0.013086][ T0] NODE_DATA(0) allocated [mem 0x13fffac80-0x140000fff] [ 0.013845][ T0] NODE_DATA(1) allocated [mem 0x23fff6c80-0x23fffcfff] [ 0.306794][ T0] KernelAddressSanitizer initialized (generic) [ 0.307283][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.307316][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.307421][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.307436][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.307446][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.307454][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.307462][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.307481][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.307492][ T0] CPU topo: Max. logical packages: 1 [ 0.307497][ T0] CPU topo: Max. logical nodes: 1 [ 0.307501][ T0] CPU topo: Num. nodes per package: 1 [ 0.307510][ T0] CPU topo: Max. logical dies: 1 [ 0.307514][ T0] CPU topo: Max. dies per package: 1 [ 0.307527][ T0] CPU topo: Max. threads per core: 2 [ 0.307532][ T0] CPU topo: Num. cores per package: 1 [ 0.307536][ T0] CPU topo: Num. threads per package: 2 [ 0.307540][ T0] CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs [ 0.307715][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.307725][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff] [ 0.307734][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xffffffff] [ 0.307756][ T0] [gap 0xc0000000-0xfffbbfff] available for PCI devices [ 0.307763][ T0] Booting paravirtualized kernel on KVM [ 0.307775][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.436351][ T0] Zone ranges: [ 0.436368][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.436384][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.436392][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.436401][ T0] Device empty [ 0.436406][ T0] Movable zone start for each node [ 0.436409][ T0] Early memory node ranges [ 0.436412][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.436420][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.436428][ T0] node 0: [mem 0x0000000100000000-0x0000000140000fff] [ 0.436435][ T0] node 1: [mem 0x0000000140001000-0x000000023fffffff] [ 0.436444][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x0000000140000fff] [ 0.436462][ T0] Initmem setup node 1 [mem 0x0000000140001000-0x000000023fffffff] [ 0.436508][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.436850][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.506817][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.577037][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2 [ 0.577720][ T0] percpu: Embedded 72 pages/cpu s254408 r8192 d32312 u1048576 [ 0.577893][ T0] kvm-guest: PV spinlocks enabled [ 0.577904][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.577925][ 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 \ [ 0.577955][ T0] Kernel command line: comedi.comedi_num_legacy_minors=4 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.582364][ T0] Unknown kernel command line parameters "nbds_max=32", will be passed to user space. [ 0.582437][ T0] random: crng init done [ 0.582441][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes [ 0.582643][ T0] software IO TLB: area num 2. [ 0.609822][ T0] Fallback order for Node 0: 0 1 [ 0.609844][ T0] Fallback order for Node 1: 1 0 [ 0.609859][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2097051 [ 0.609867][ T0] Policy zone: Normal [ 0.610512][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off [ 0.610522][ T0] stackdepot: allocating hash table via alloc_large_system_hash [ 0.610533][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear) [ 0.615022][ T0] stackdepot: allocating space for 8192 stack pools via memblock [ 1.305132][ T0] ********************************************************** [ 1.305143][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.305147][ T0] ** ** [ 1.305151][ T0] ** This system shows unhashed kernel memory addresses ** [ 1.305155][ T0] ** via the console, logs, and other interfaces. This ** [ 1.305159][ T0] ** might reduce the security of your system. ** [ 1.305163][ T0] ** ** [ 1.305166][ T0] ** If you see this message and you are not debugging ** [ 1.305170][ T0] ** the kernel, report this immediately to your system ** [ 1.305174][ T0] ** administrator! ** [ 1.305178][ T0] ** ** [ 1.305182][ T0] ** Use hash_pointers=always to force this mode off ** [ 1.305186][ T0] ** ** [ 1.305190][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.305193][ T0] ********************************************************** [ 1.308535][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.434546][ T0] allocated 167772160 bytes of page_ext [ 1.434587][ T0] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.448503][ T0] Node 0, zone DMA32: page owner found early allocated 21120 pages [ 1.453184][ T0] Node 0, zone Normal: page owner found early allocated 131 pages [ 1.464199][ T0] Node 1, zone Normal: page owner found early allocated 19848 pages [ 1.464670][ T0] Kernel/User page tables isolation: enabled [ 1.466877][ T0] Dynamic Preempt: full [ 1.468349][ T0] Running RCU self tests [ 1.468354][ T0] Running RCU synchronous self tests [ 1.468359][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.468363][ T0] rcu: RCU lockdep checking is enabled. [ 1.468366][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.468373][ T0] rcu: RCU priority boosting: priority 1 delay 500 ms. [ 1.468379][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.468384][ T0] rcu: RCU_SOFTIRQ processing moved to rcuc kthreads. [ 1.468388][ T0] rcu: RCU debug extended QS entry/exit. [ 1.468391][ T0] No expedited grace period (rcu_normal_after_boot). [ 1.468395][ T0] Trampoline variant of Tasks RCU enabled. [ 1.468398][ T0] Tracing variant of Tasks RCU enabled. [ 1.468402][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.468408][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.468575][ T0] Running RCU synchronous self tests [ 1.468608][ T0] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2. [ 1.639756][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.640884][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.641672][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823be00000-0xffff88823c000000 [ 1.643272][ T0] Console: colour VGA+ 80x25 [ 1.843203][ T0] printk: legacy console [ttyS0] enabled [ 1.843213][ T0] printk: legacy bootconsole [earlyser0] disabled [ 1.843296][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.843302][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.843306][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.843311][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.843316][ T0] ... CLASSHASH_SIZE: 4096 [ 1.843320][ T0] ... MAX_LOCKDEP_ENTRIES: 1048576 [ 1.843324][ T0] ... MAX_LOCKDEP_CHAINS: 1048576 [ 1.843329][ T0] ... CHAINHASH_SIZE: 524288 [ 1.843333][ T0] memory used by lock dependency info: 106625 kB [ 1.843338][ T0] memory used for stack traces: 8320 kB [ 1.843342][ T0] per task-struct memory footprint: 1920 bytes [ 1.843659][ T0] ACPI: Core revision 20260408 [ 1.845063][ T0] APIC: Switch to symmetric I/O mode setup [ 1.845570][ T0] x2apic enabled [ 1.849037][ T0] APIC: Switched APIC routing to: physical x2apic [ 1.856669][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.857194][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns [ 1.857260][ T0] Calibrating delay loop (skipped) preset value.. 4399.99 BogoMIPS (lpj=21999980) [ 1.858001][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.858007][ T0] Last level dTLB entries: 4KB 64, 2MB 32, 4MB 32, 1GB 4 [ 1.858068][ T0] mitigations: Enabled attack vectors: user_kernel, user_user, guest_host, guest_guest, SMT mitigations: auto [ 1.858086][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.858092][ T0] Spectre V2 : Mitigation: IBRS [ 1.858096][ T0] RETBleed: Mitigation: IBRS [ 1.858100][ T0] ITS: Mitigation: Aligned branch/return thunks [ 1.858104][ T0] Spectre V2 : User space: Mitigation: STIBP via prctl [ 1.858108][ T0] MDS: Mitigation: Clear CPU buffers [ 1.858112][ T0] TAA: Mitigation: Clear CPU buffers [ 1.858116][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.858121][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.858128][ T0] Spectre V2 : Spectre v2 / SpectreRSB: Filling RSB on context switch and VMEXIT [ 1.858144][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.858183][ T0] active return thunk: its_return_thunk [ 1.858198][ T0] Spectre V2 : Spectre BHI mitigation: SW BHB clearing on syscall and VM exit [ 1.858252][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 1.858258][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 1.858263][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 1.858269][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 1.858276][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 2.113532][ T0] pid_max: default: 32768 minimum: 301 [ 2.115113][ T0] landlock: Up and running. [ 2.115119][ T0] Yama: becoming mindful. [ 2.115485][ T0] TOMOYO Linux initialized [ 2.116655][ T0] AppArmor: AppArmor initialized [ 2.119047][ T0] LSM support for eBPF active [ 2.125868][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc hugepage) [ 2.128794][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage) [ 2.129195][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.129365][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.131673][ T0] VFS: Finished mounting rootfs on nullfs [ 2.136420][ T0] Running RCU synchronous self tests [ 2.136433][ T0] Running RCU synchronous self tests [ 2.257775][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 2.262208][ T1] Performance Events: unsupported CPU family 6 model 79 no PMU driver, software events only. [ 2.262334][ T1] signal: max sigframe size: 1776 [ 2.267319][ T1] rcu: Hierarchical SRCU implementation. [ 2.267326][ T1] rcu: Max phase no-delay instances is 1000. [ 2.307348][ T1] Timer migration: 1 hierarchy levels; 8 children per group; 0 crossnode level [ 2.391847][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.392876][ T1] smp: Bringing up secondary CPUs ... [ 2.396339][ T1] smpboot: x86: Booting SMP configuration: [ 2.396346][ T1] .... node #0, CPUs: #1 [ 2.401428][ 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. [ 2.401428][ 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. [ 2.401428][ 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. [ 2.401428][ T1] smp: Brought up 2 nodes, 2 CPUs [ 2.401428][ T1] smpboot: Total of 2 processors activated (8799.99 BogoMIPS) [ 2.401428][ T1] Memory: 6461572K/8388204K available (167944K kernel code, 29753K rwdata, 41264K rodata, 25552K init, 129268K bss, 1738748K reserved, 0K cma-reserved) [ 2.409670][ T1] devtmpfs: initialized [ 2.413622][ T1] x86/mm: Memory block size: 128MB [ 2.482733][ T1] Running RCU synchronous self tests [ 2.482790][ T1] Running RCU synchronous self tests [ 2.482960][ T1] Running RCU Tasks wait API self tests [ 2.482960][ T1] Running RCU Tasks Trace wait API self tests [ 2.489610][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.489610][ T1] posixtimers hash table entries: 1024 (order: 6, 139264 bytes, vmalloc) [ 2.489610][ T1] futex hash table entries: 256 (49152 bytes on 2 NUMA nodes, total 96 KiB, linear). [ 2.491579][ T1] xor: automatically using best checksumming function avx [ 2.500955][ T1] PM: RTC time: 17:24:17, date: 2026-06-04 [ 2.512222][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 2.521418][ T1] audit: initializing netlink subsys (disabled) [ 2.521646][ T38] audit: type=2000 audit(1780593857.240:1): state=initialized audit_enabled=0 res=1 [ 2.522016][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.522333][ T1] cpuidle: using governor menu [ 2.532463][ T1] NET: Registered PF_QIPCRTR protocol family [ 2.537501][ T10] Callback from call_rcu_tasks_trace() invoked. [ 2.537696][ T1] Freeing SMP alternatives memory: 128K [ 2.542213][ T1] dca service started, version 1.12.1 [ 2.542484][ T1] PCI: Using configuration type 1 for base access [ 2.577496][ T1] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages [ 2.577512][ T1] HugeTLB: 16380 KiB vmemmap can be freed for a 1.00 GiB page [ 2.577525][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 2.577534][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 2.617467][ T1] raid6: using avx2x2 recovery algorithm [ 2.617481][ T1] raid6: skipped pq benchmark and selected avx2x4 [ 2.622034][ T1] ACPI: Added _OSI(Module Device) [ 2.622048][ T1] ACPI: Added _OSI(Processor Device) [ 2.622056][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.850478][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 2.901995][ T1] ACPI: \_SB_: platform _OSC: OS support mask [000e7eee] [ 2.934752][ T1] ACPI: Interpreter enabled [ 2.935640][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 2.935711][ T1] ACPI: Using IOAPIC for interrupt routing [ 2.936351][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 2.936363][ T1] PCI: Ignoring E820 reservations for host bridge windows [ 2.943005][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.279344][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.279474][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 3.279492][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 3.279887][ T1] acpi PNP0A03:00: _OSC: platform retains control of PCIe features (AE_ERROR) [ 3.280653][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended configuration space under this bridge [ 3.308614][ T1] PCI host bridge to bus 0000:00 [ 3.308631][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 3.309085][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.309122][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.309156][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.309190][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 3.309231][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.309861][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 conventional PCI endpoint [ 3.314421][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 conventional PCI endpoint [ 3.333399][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 conventional PCI endpoint [ 3.337845][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 3.345657][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 conventional PCI endpoint [ 3.349382][ T1] pci 0000:00:03.0: BAR 0 [io 0xc000-0xc03f] [ 3.349422][ T1] pci 0000:00:03.0: BAR 1 [mem 0xfe800000-0xfe80007f] [ 3.358904][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 conventional PCI endpoint [ 3.362833][ T1] pci 0000:00:04.0: BAR 0 [io 0xc040-0xc07f] [ 3.362872][ T1] pci 0000:00:04.0: BAR 1 [mem 0xfe801000-0xfe80107f] [ 3.371389][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 conventional PCI endpoint [ 3.389989][ T1] pci 0000:00:05.0: BAR 0 [mem 0xfe000000-0xfe7fffff] [ 3.390791][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 3.399415][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 conventional PCI endpoint [ 3.403239][ T1] pci 0000:00:06.0: BAR 0 [io 0xc080-0xc09f] [ 3.411196][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 conventional PCI endpoint [ 3.415084][ T1] pci 0000:00:07.0: BAR 0 [io 0xc0a0-0xc0bf] [ 3.415118][ T1] pci 0000:00:07.0: BAR 1 [mem 0xfe802000-0xfe80203f] [ 3.476291][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 3.484256][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 3.494122][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 3.503983][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 3.509379][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 3.540181][ T1] iommu: Default domain type: Translated [ 3.540195][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 3.552423][ T1] SCSI subsystem initialized [ 3.556272][ T1] ACPI: bus type USB registered [ 3.558057][ T1] usbcore: registered new interface driver usbfs [ 3.558686][ T1] usbcore: registered new interface driver hub [ 3.559366][ T1] usbcore: registered new device driver usb [ 3.562838][ T1] mc: Linux media interface: v0.10 [ 3.563220][ T1] videodev: Linux video capture interface: v2.00 [ 3.564656][ T1] pps_core: LinuxPPS API ver. 1 registered [ 3.564664][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 3.564822][ T1] PTP clock support registered [ 3.577756][ T1] EDAC MC: Ver: 3.0.0 [ 3.592709][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 3.611434][ T1] Bluetooth: Core ver 2.22 [ 3.611755][ T1] NET: Registered PF_BLUETOOTH protocol family [ 3.611763][ T1] Bluetooth: HCI device and connection manager initialized [ 3.611894][ T1] Bluetooth: HCI socket layer initialized [ 3.611935][ T1] Bluetooth: L2CAP socket layer initialized [ 3.612112][ T1] Bluetooth: SCO socket layer initialized [ 3.612267][ T1] NET: Registered PF_ATMPVC protocol family [ 3.612278][ T1] NET: Registered PF_ATMSVC protocol family [ 3.612911][ T1] NetLabel: Initializing [ 3.612917][ T1] NetLabel: domain hash size = 128 [ 3.612931][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 3.613700][ T1] NetLabel: unlabeled traffic allowed by default [ 3.635103][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 3.635782][ T1] NET: Registered PF_NFC protocol family [ 3.636038][ T1] mctp: management component transport protocol core [ 3.636048][ T1] NET: Registered PF_MCTP protocol family [ 3.636972][ T1] PCI: Using ACPI for IRQ routing [ 3.643053][ T1] e820: register RAM buffer resource [mem 0x0009fc00-0x0009ffff] [ 3.643179][ T1] e820: register RAM buffer resource [mem 0xbfffd000-0xbfffffff] [ 3.645163][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 3.645179][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 3.645190][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 3.645226][ T1] vgaarb: loaded [ 3.661088][ T1] clocksource: Switched to clocksource kvm-clock [ 3.668383][ T1] VFS: Disk quotas dquot_6.6.0 [ 3.668890][ T1] VFS: Dquot-cache hash table entries: 512 (4096 bytes) [ 3.687362][ T1] netfs: FS-Cache loaded [ 3.690473][ T1] CacheFiles: Loaded [ 3.692139][ T1] TOMOYO: 2.6.0 [ 3.692151][ T1] Mandatory Access Control activated. [ 3.704154][ T1] AppArmor: AppArmor Filesystem Enabled [ 3.705320][ T1] pnp: PnP ACPI init [ 3.749141][ T1] pnp: PnP ACPI: found 6 devices [ 3.864539][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 3.869799][ T1] NET: Registered PF_INET protocol family [ 3.872231][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 3.888965][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 8, 557056 bytes, vmalloc) [ 3.889870][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, vmalloc) [ 3.890868][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 3.916541][ T1] TCP bind hash table entries: 65536 (order: 13, 17825792 bytes, vmalloc hugepage) [ 3.932250][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 3.935992][ T1] MPTCP token hash table entries: 8192 (order: 9, 1245184 bytes, vmalloc) [ 3.942617][ T1] UDP hash table entries: 4096 (order: 9, 1835008 bytes, vmalloc) [ 3.945728][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 3.954329][ T1] RPC: Registered named UNIX socket transport module. [ 3.954346][ T1] RPC: Registered udp transport module. [ 3.954355][ T1] RPC: Registered tcp transport module. [ 3.954364][ T1] RPC: Registered tcp-with-tls transport module. [ 3.954373][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 3.975388][ T1] NET: Registered PF_XDP protocol family [ 3.975707][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 3.975729][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 3.975744][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 3.975759][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 3.985380][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 3.985728][ T1] PCI: CLS 0 bytes, default 64 [ 3.986266][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 3.986280][ T1] software IO TLB: mapped [mem 0x00000000b4600000-0x00000000b8600000] (64MB) [ 3.995365][ T1] ACPI: bus type thunderbolt registered [ 4.005427][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 4.012409][ T69] kworker/u8:2 (69) used greatest stack depth: 27264 bytes left [ 4.046711][ T1] kvm_amd: CPU 1 isn't AMD or Hygon [ 4.046741][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns [ 4.047447][ T1] clocksource: Switched to clocksource tsc [ 4.050273][ T73] kworker/u8:5 (73) used greatest stack depth: 27008 bytes left [ 4.100614][ T89] kworker/u8:5 (89) used greatest stack depth: 26616 bytes left [ 4.113325][ T1] Initialise system trusted keyrings [ 4.116155][ T1] workingset: timestamp_bits=40 (anon: 35) max_order=21 bucket_order=0 (anon: 0) [ 4.128178][ T98] kworker/u8:5 (98) used greatest stack depth: 26328 bytes left [ 4.135110][ T1] DLM installed [ 4.146124][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 4.162624][ T1] NFS: Registering the id_resolver key type [ 4.162784][ T1] Key type id_resolver registered [ 4.162796][ T1] Key type id_legacy registered [ 4.163071][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 4.163264][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 4.180005][ T1] smbdirect: subsystem loading... [ 4.194479][ T1] smbdirect: subsystem loaded [ 4.250617][ T1] Key type cifs.spnego registered [ 4.251065][ T1] Key type cifs.idmap registered [ 4.255741][ T1] ntfs3: Enabled Linux POSIX ACLs support [ 4.255752][ T1] ntfs3: Read-only LZX/Xpress compression included [ 4.256273][ T1] efs: 1.0a - http://aeschi.ch.eu.org/efs/ [ 4.256757][ T1] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 4.259508][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 4.259769][ T1] QNX4 filesystem 0.2.3 registered. [ 4.259882][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 4.272039][ T1] fuse: init (API version 7.45) [ 4.279767][ T1] orangefs_debugfs_init: called with debug mask: :none: :0: [ 4.282320][ T1] orangefs_init: module version upstream loaded [ 4.283671][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 4.303790][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 4.324062][ T1] 9p: Installing v9fs 9p2000 file system support [ 4.325331][ T1] NILFS version 2 loaded [ 4.325343][ T1] befs: version: 0.9.3 [ 4.327104][ T1] ocfs2: Registered cluster interface o2cb [ 4.330908][ T1] ocfs2: Registered cluster interface user [ 4.332107][ T1] OCFS2 User DLM kernel interface loaded [ 4.379604][ T1] gfs2: GFS2 installed [ 4.401438][ T1] ceph: loaded (mds proto 32) [ 4.416190][ T1] NET: Registered PF_ALG protocol family [ 4.417080][ T1] async_tx: api initialized (async) [ 4.417141][ T1] Key type asymmetric registered [ 4.417213][ T1] Asymmetric key parser 'x509' registered [ 4.417226][ T1] Asymmetric key parser 'pkcs8' registered [ 4.417238][ T1] Key type pkcs7_test registered [ 4.418132][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 239) [ 4.420022][ T1] io scheduler mq-deadline registered [ 4.420037][ T1] io scheduler kyber registered [ 4.420577][ T1] io scheduler bfq registered [ 4.443773][ T1] input: Power Button as /devices/platform/LNXPWRBN:00/input/input0 [ 4.445961][ T1] ACPI: button: Power Button [PWRF] [ 4.448801][ T1] input: Sleep Button as /devices/platform/LNXSLPBN:00/input/input1 [ 4.451045][ T1] ACPI: button: Sleep Button [SLPF] [ 4.489450][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 4.534211][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 4.534390][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.583649][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 4.583813][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.632721][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 4.632865][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 4.672994][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 4.727670][ T226] kworker/u8:9 (226) used greatest stack depth: 25704 bytes left [ 5.677568][ T1] N_HDLC line discipline registered with maxframe=4096 [ 5.679110][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 5.697199][ T1] 00:02: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 5.724676][ T1] 00:03: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 5.750794][ T1] 00:04: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 5.771443][ T1] 00:05: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 5.818165][ T1] Non-volatile memory driver v1.3 [ 5.857782][ T1] usbcore: registered new interface driver xillyusb [ 5.868609][ T1] ACPI: bus type drm_connector registered [ 5.879840][ T1] [drm] Initialized vgem 1.0.0 for vgem on minor 0 [ 5.900864][ T1] [drm] Initialized vkms 1.0.0 for vkms on minor 1 [ 6.051397][ T1] Console: switching to colour frame buffer device 128x48 [ 6.117063][ T1] faux_driver vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 6.118101][ T1] usbcore: registered new interface driver udl [ 6.125124][ T1] usbcore: registered new interface driver gm12u320 [ 6.125841][ T1] usbcore: registered new interface driver gud [ 6.321270][ T1] brd: module loaded [ 6.833038][ T1] loop: module loaded [ 7.223269][ T1] zram: Added device: zram0 [ 7.251582][ T1] null_blk: disk nullb0 created [ 7.251599][ T1] null_blk: module loaded [ 7.251621][ T1] rnull_mod: Rust null_blk loaded [ 7.256294][ T1] Guest personality initialized and is inactive [ 7.270349][ T1] VMCI host device registered (name=vmci, major=10, minor=267) [ 7.270366][ T1] Initialized host personality [ 7.271645][ T1] usbcore: registered new interface driver rtsx_usb [ 7.281992][ T1] usbcore: registered new interface driver viperboard [ 7.284353][ T1] usbcore: registered new interface driver dln2 [ 7.290056][ T1] usbcore: registered new interface driver pn533_usb [ 7.305926][ T1] nfcsim 0.2 initialized [ 7.309021][ T1] usbcore: registered new interface driver port100 [ 7.310247][ T1] usbcore: registered new interface driver nfcmrvl [ 7.330299][ T1] Loading iSCSI transport class v2.0-870. [ 7.361050][ T1] virtio_scsi virtio0: 1/0/0 default/read/poll queues [ 7.393489][ T1] scsi host0: Virtio SCSI HBA [ 7.394080][ T1] blk-mq: reduced tag depth to 10240 [ 7.624655][ T1] st: Version 20160209, fixed bufsize 32768, s/g segs 256 [ 7.645436][ T13] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 7.668395][ T1] ------------[ cut here ]------------ [ 7.668407][ T1] workqueue: nvme_tcp_wq is using neither WQ_PERCPU or WQ_UNBOUND. Setting WQ_PERCPU. [ 7.668424][ T1] WARNING: kernel/workqueue.c:5856 at __alloc_workqueue+0x1d02/0x2070, CPU#1: swapper/0/1 [ 7.668455][ T1] Modules linked in: [ 7.668487][ T1] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 7.668505][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 7.668517][ T1] RIP: 0010:__alloc_workqueue+0x1d07/0x2070 [ 7.668537][ 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 93 43 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 [ 7.668550][ T1] RSP: 0000:ffffc900000677a8 EFLAGS: 00010293 [ 7.668564][ T1] RAX: ffffffff818e2abb RBX: 0000000000000000 RCX: ffff88801d6c5d00 [ 7.668575][ T1] RDX: 0000000000000000 RSI: ffff88802808fd68 RDI: ffffffff8fd1be50 [ 7.668586][ T1] RBP: 0000000000000058 R08: ffff88801d6c5d00 R09: 0000000000000002 [ 7.668597][ T1] R10: 0000000000000100 R11: 0000000000000102 R12: dffffc0000000000 [ 7.668608][ T1] R13: ffff88802808fc00 R14: ffffc900000678c0 R15: 0000000000000000 [ 7.668618][ T1] FS: 0000000000000000(0000) GS:ffff888125b80000(0000) knlGS:0000000000000000 [ 7.668631][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.668642][ T1] CR2: 0000000000000000 CR3: 000000000e1b8000 CR4: 00000000003526f0 [ 7.668656][ T1] Call Trace: [ 7.668667][ T1] [ 7.668682][ T1] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 7.668702][ T1] ? rt_mutex_slowunlock+0x4a7/0x8b0 [ 7.668723][ T1] ? reacquire_held_locks+0x104/0x190 [ 7.668745][ T1] ? rt_spin_lock+0x1e0/0x400 [ 7.668773][ T1] alloc_workqueue_noprof+0xe3/0x210 [ 7.668797][ T1] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 7.668816][ T1] ? add_device_randomness+0xc1/0x100 [ 7.668833][ T1] ? __pfx_add_device_randomness+0x10/0x10 [ 7.668850][ T1] ? __pfx_nvme_fc_init_module+0x10/0x10 [ 7.668874][ T1] ? __pfx_nvme_tcp_init_module+0x10/0x10 [ 7.668897][ T1] nvme_tcp_init_module+0x27/0x100 [ 7.668922][ T1] do_one_initcall+0x250/0x870 [ 7.668942][ T1] ? __pfx_nvme_tcp_init_module+0x10/0x10 [ 7.668966][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 7.668995][ T1] ? __pfx___schedule+0x10/0x10 [ 7.669013][ T1] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 7.669038][ T1] ? irqentry_exit+0x218/0x8c0 [ 7.669057][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 7.669074][ T1] ? irqentry_exit+0x218/0x8c0 [ 7.669090][ T1] ? trace_irq_disable+0x3b/0x140 [ 7.669126][ T1] ? next_arg+0x498/0x5e0 [ 7.669146][ T1] ? parameq+0x14d/0x170 [ 7.669169][ T1] ? parse_args+0x9fc/0xb00 [ 7.669207][ T1] ? rcu_is_watching+0x15/0xb0 [ 7.669242][ T1] do_initcall_level+0x104/0x190 [ 7.669261][ T1] ? kernel_init+0x1d/0x1d0 [ 7.669282][ T1] do_initcalls+0x59/0xa0 [ 7.669302][ T1] kernel_init_freeable+0x2a6/0x3e0 [ 7.669322][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.669345][ T1] kernel_init+0x1d/0x1d0 [ 7.669364][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.669383][ T1] ret_from_fork+0x514/0xb70 [ 7.669406][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 7.669425][ T1] ? __switch_to+0xc79/0x1410 [ 7.669444][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.669467][ T1] ret_from_fork_asm+0x1a/0x30 [ 7.669501][ T1] [ 7.669514][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 7.669531][ T1] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 7.669548][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 7.669557][ T1] Call Trace: [ 7.669564][ T1] [ 7.669578][ T1] vpanic+0x56c/0xa60 [ 7.669602][ T1] ? __pfx__printk+0x10/0x10 [ 7.669619][ T1] ? __pfx_vpanic+0x10/0x10 [ 7.669639][ T1] ? is_bpf_text_address+0x292/0x2b0 [ 7.669660][ T1] ? is_bpf_text_address+0x26/0x2b0 [ 7.669689][ T1] panic+0xc5/0xd0 [ 7.669709][ T1] ? __pfx_panic+0x10/0x10 [ 7.669737][ T1] ? ret_from_fork_asm+0x1a/0x30 [ 7.669761][ T1] __warn+0x315/0x4c0 [ 7.669781][ T1] ? __alloc_workqueue+0x1d02/0x2070 [ 7.669800][ T1] ? __alloc_workqueue+0x1d02/0x2070 [ 7.669819][ T1] __report_bug+0x339/0x540 [ 7.669842][ T1] ? __alloc_workqueue+0x1d02/0x2070 [ 7.669859][ T1] ? __pfx___report_bug+0x10/0x10 [ 7.669883][ T1] ? __alloc_workqueue+0x1d0c/0x2070 [ 7.669899][ T1] ? __alloc_workqueue+0x1d07/0x2070 [ 7.669924][ T1] report_bug_entry+0x19a/0x290 [ 7.669942][ T1] ? __alloc_workqueue+0x1d07/0x2070 [ 7.669959][ T1] ? __alloc_workqueue+0x1d0c/0x2070 [ 7.669975][ T1] handle_bug+0xce/0x200 [ 7.669996][ T1] exc_invalid_op+0x1a/0x50 [ 7.670013][ T1] asm_exc_invalid_op+0x1a/0x20 [ 7.670030][ T1] RIP: 0010:__alloc_workqueue+0x1d07/0x2070 [ 7.670048][ 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 93 43 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 [ 7.670060][ T1] RSP: 0000:ffffc900000677a8 EFLAGS: 00010293 [ 7.670075][ T1] RAX: ffffffff818e2abb RBX: 0000000000000000 RCX: ffff88801d6c5d00 [ 7.670086][ T1] RDX: 0000000000000000 RSI: ffff88802808fd68 RDI: ffffffff8fd1be50 [ 7.670097][ T1] RBP: 0000000000000058 R08: ffff88801d6c5d00 R09: 0000000000000002 [ 7.670107][ T1] R10: 0000000000000100 R11: 0000000000000102 R12: dffffc0000000000 [ 7.670118][ T1] R13: ffff88802808fc00 R14: ffffc900000678c0 R15: 0000000000000000 [ 7.670135][ T1] ? __alloc_workqueue+0x1cfb/0x2070 [ 7.670159][ T1] ? __alloc_workqueue+0x1cfb/0x2070 [ 7.670177][ T1] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 7.670196][ T1] ? rt_mutex_slowunlock+0x4a7/0x8b0 [ 7.670216][ T1] ? reacquire_held_locks+0x104/0x190 [ 7.670244][ T1] ? rt_spin_lock+0x1e0/0x400 [ 7.670272][ T1] alloc_workqueue_noprof+0xe3/0x210 [ 7.670296][ T1] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 7.670316][ T1] ? add_device_randomness+0xc1/0x100 [ 7.670333][ T1] ? __pfx_add_device_randomness+0x10/0x10 [ 7.670350][ T1] ? __pfx_nvme_fc_init_module+0x10/0x10 [ 7.670374][ T1] ? __pfx_nvme_tcp_init_module+0x10/0x10 [ 7.670398][ T1] nvme_tcp_init_module+0x27/0x100 [ 7.670424][ T1] do_one_initcall+0x250/0x870 [ 7.670443][ T1] ? __pfx_nvme_tcp_init_module+0x10/0x10 [ 7.670467][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 7.670495][ T1] ? __pfx___schedule+0x10/0x10 [ 7.670513][ T1] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 7.670539][ T1] ? irqentry_exit+0x218/0x8c0 [ 7.670557][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 7.670574][ T1] ? irqentry_exit+0x218/0x8c0 [ 7.670590][ T1] ? trace_irq_disable+0x3b/0x140 [ 7.670625][ T1] ? next_arg+0x498/0x5e0 [ 7.670645][ T1] ? parameq+0x14d/0x170 [ 7.670668][ T1] ? parse_args+0x9fc/0xb00 [ 7.670706][ T1] ? rcu_is_watching+0x15/0xb0 [ 7.670731][ T1] do_initcall_level+0x104/0x190 [ 7.670751][ T1] ? kernel_init+0x1d/0x1d0 [ 7.670772][ T1] do_initcalls+0x59/0xa0 [ 7.670791][ T1] kernel_init_freeable+0x2a6/0x3e0 [ 7.670811][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.670834][ T1] kernel_init+0x1d/0x1d0 [ 7.670853][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.670873][ T1] ret_from_fork+0x514/0xb70 [ 7.670895][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 7.670914][ T1] ? __switch_to+0xc79/0x1410 [ 7.670932][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.670954][ T1] ret_from_fork_asm+0x1a/0x30 [ 7.670987][ T1] [ 7.671391][ T1] Kernel Offset: disabled