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@10.128.1.3" "pwd"]: exit status 255 ssh: connect to host 10.128.1.3 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-linux-next-kasan-gce-root-test-0 port 1 (session ID: f25c9ff929bcb3ef4efecb214784ee4a1e849475031c764b859ea671624d05a4, 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 99cf6481-913a-f8b3-88a8-0e052a788a13 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 [ 0.000006][ T0] kvm-clock: using sched offset of 5040523813 cycles [ 0.000014][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000036][ T0] tsc: Detected 2200.154 MHz processor [ 0.003945][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.003999][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs [ 0.004012][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.004077][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.008814][ T0] found SMP MP-table at [mem 0x000f2890-0x000f289f] [ 0.008840][ T0] Using GB pages for direct mapping [ 0.012526][ T0] ACPI: Early table checksum verification disabled [ 0.012549][ T0] ACPI: RSDP 0x00000000000F2610 000014 (v00 Google) [ 0.012566][ T0] ACPI: RSDT 0x00000000BFFFFFB0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.012588][ T0] ACPI: FACP 0x00000000BFFFF370 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.012613][ T0] ACPI: DSDT 0x00000000BFFFD900 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.012631][ T0] ACPI: FACS 0x00000000BFFFD8C0 000040 [ 0.012645][ T0] ACPI: FACS 0x00000000BFFFD8C0 000040 [ 0.012659][ T0] ACPI: SRAT 0x00000000BFFFFEA0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.012678][ T0] ACPI: APIC 0x00000000BFFFFDF0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.012696][ T0] ACPI: SSDT 0x00000000BFFFF470 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.012714][ T0] ACPI: WAET 0x00000000BFFFFE70 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.012730][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff370-0xbffff463] [ 0.012738][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd900-0xbffff363] [ 0.012745][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd8c0-0xbfffd8ff] [ 0.012752][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd8c0-0xbfffd8ff] [ 0.012759][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffea0-0xbfffff67] [ 0.012766][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdf0-0xbffffe65] [ 0.012773][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff470-0xbffffdef] [ 0.012780][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe70-0xbffffe97] [ 0.012908][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.012918][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.012927][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.012938][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00001000-0xbfffffff] [ 0.012951][ T0] NUMA: Node 0 [mem 0x00001000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00001000-0x23fffffff] [ 0.012974][ T0] Faking node 0 at [mem 0x0000000000001000-0x0000000140000fff] (5120MB) [ 0.012983][ T0] Faking node 1 at [mem 0x0000000140001000-0x000000023fffffff] (4095MB) [ 0.013067][ T0] NODE_DATA(0) allocated [mem 0x13fffac80-0x140000fff] [ 0.013813][ T0] NODE_DATA(1) allocated [mem 0x23fff6c80-0x23fffcfff] [ 0.295196][ T0] KernelAddressSanitizer initialized (generic) [ 0.295755][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.295789][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.295894][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.295909][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.295919][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.295927][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.295935][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.295955][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.295966][ T0] CPU topo: Max. logical packages: 1 [ 0.295971][ T0] CPU topo: Max. logical nodes: 1 [ 0.295975][ T0] CPU topo: Num. nodes per package: 1 [ 0.295984][ T0] CPU topo: Max. logical dies: 1 [ 0.295988][ T0] CPU topo: Max. dies per package: 1 [ 0.296002][ T0] CPU topo: Max. threads per core: 2 [ 0.296007][ T0] CPU topo: Num. cores per package: 1 [ 0.296011][ T0] CPU topo: Num. threads per package: 2 [ 0.296015][ T0] CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs [ 0.296190][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.296200][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff] [ 0.296209][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xffffffff] [ 0.296232][ T0] [gap 0xc0000000-0xfffbbfff] available for PCI devices [ 0.296239][ T0] Booting paravirtualized kernel on KVM [ 0.296250][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.425074][ T0] Zone ranges: [ 0.425085][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.425098][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.425106][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.425115][ T0] Device empty [ 0.425120][ T0] Movable zone start for each node [ 0.425123][ T0] Early memory node ranges [ 0.425126][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.425134][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.425142][ T0] node 0: [mem 0x0000000100000000-0x0000000140000fff] [ 0.425149][ T0] node 1: [mem 0x0000000140001000-0x000000023fffffff] [ 0.425159][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x0000000140000fff] [ 0.425178][ T0] Initmem setup node 1 [mem 0x0000000140001000-0x000000023fffffff] [ 0.425227][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.425508][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.497160][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.569090][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2 [ 0.569753][ T0] percpu: Embedded 71 pages/cpu s253896 r8192 d28728 u1048576 [ 0.569926][ T0] kvm-guest: PV spinlocks enabled [ 0.569937][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.569957][ 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 \ [ 0.569988][ T0] Kernel command line: comedi.comedi_num_legacy_minors=4 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.574613][ T0] Unknown kernel command line parameters "nbds_max=32", will be passed to user space. [ 0.574688][ T0] random: crng init done [ 0.574693][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes [ 0.574892][ T0] software IO TLB: area num 2. [ 0.600566][ T0] Fallback order for Node 0: 0 1 [ 0.600588][ T0] Fallback order for Node 1: 1 0 [ 0.600603][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2097051 [ 0.600611][ T0] Policy zone: Normal [ 0.601233][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off [ 0.601243][ T0] stackdepot: allocating hash table via alloc_large_system_hash [ 0.601255][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear) [ 0.605493][ T0] stackdepot: allocating space for 8192 stack pools via memblock [ 1.212722][ T0] ********************************************************** [ 1.212733][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.212738][ T0] ** ** [ 1.212742][ T0] ** This system shows unhashed kernel memory addresses ** [ 1.212746][ T0] ** via the console, logs, and other interfaces. This ** [ 1.212750][ T0] ** might reduce the security of your system. ** [ 1.212754][ T0] ** ** [ 1.212758][ T0] ** If you see this message and you are not debugging ** [ 1.212762][ T0] ** the kernel, report this immediately to your system ** [ 1.212766][ T0] ** administrator! ** [ 1.212770][ T0] ** ** [ 1.212774][ T0] ** Use hash_pointers=always to force this mode off ** [ 1.212778][ T0] ** ** [ 1.212782][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.212786][ T0] ********************************************************** [ 1.216213][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.340546][ T0] allocated 167772160 bytes of page_ext [ 1.340588][ T0] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.355373][ T0] Node 0, zone DMA32: page owner found early allocated 21120 pages [ 1.360228][ T0] Node 0, zone Normal: page owner found early allocated 131 pages [ 1.371860][ T0] Node 1, zone Normal: page owner found early allocated 19848 pages [ 1.372376][ T0] Kernel/User page tables isolation: enabled [ 1.374601][ T0] Dynamic Preempt: full [ 1.375796][ T0] Running RCU self tests [ 1.375801][ T0] Running RCU synchronous self tests [ 1.375806][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.375811][ T0] rcu: RCU lockdep checking is enabled. [ 1.375814][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.375821][ T0] rcu: RCU priority boosting: priority 1 delay 500 ms. [ 1.375827][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.375831][ T0] rcu: RCU_SOFTIRQ processing moved to rcuc kthreads. [ 1.375835][ T0] rcu: RCU debug extended QS entry/exit. [ 1.375839][ T0] No expedited grace period (rcu_normal_after_boot). [ 1.375843][ T0] Trampoline variant of Tasks RCU enabled. [ 1.375846][ T0] Tracing variant of Tasks RCU enabled. [ 1.375850][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.375856][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.376043][ T0] Running RCU synchronous self tests [ 1.376080][ T0] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2. [ 1.553158][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.554276][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.555065][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823be00000-0xffff88823c000000 [ 1.556585][ T0] Console: colour VGA+ 80x25 [ 1.737761][ T0] printk: legacy console [ttyS0] enabled [ 1.737774][ T0] printk: legacy bootconsole [earlyser0] disabled [ 1.737854][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.737860][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.737867][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.737872][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.737877][ T0] ... CLASSHASH_SIZE: 4096 [ 1.737881][ T0] ... MAX_LOCKDEP_ENTRIES: 1048576 [ 1.737886][ T0] ... MAX_LOCKDEP_CHAINS: 1048576 [ 1.737890][ T0] ... CHAINHASH_SIZE: 524288 [ 1.737894][ T0] memory used by lock dependency info: 106625 kB [ 1.737899][ T0] memory used for stack traces: 8320 kB [ 1.737904][ T0] per task-struct memory footprint: 1920 bytes [ 1.738257][ T0] ACPI: Core revision 20260408 [ 1.739668][ T0] APIC: Switch to symmetric I/O mode setup [ 1.740213][ T0] x2apic enabled [ 1.747282][ T0] APIC: Switched APIC routing to: physical x2apic [ 1.753795][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.754969][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb6c45b8f7, max_idle_ns: 440795205637 ns [ 1.755022][ T0] Calibrating delay loop (skipped) preset value.. 4400.30 BogoMIPS (lpj=22001540) [ 1.755714][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.755720][ T0] Last level dTLB entries: 4KB 64, 2MB 32, 4MB 32, 1GB 4 [ 1.755777][ T0] mitigations: Enabled attack vectors: user_kernel, user_user, guest_host, guest_guest, SMT mitigations: auto [ 1.755795][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.755802][ T0] Spectre V2 : Mitigation: IBRS [ 1.755806][ T0] RETBleed: Mitigation: IBRS [ 1.755810][ T0] ITS: Mitigation: Aligned branch/return thunks [ 1.755814][ T0] Spectre V2 : User space: Mitigation: STIBP via prctl [ 1.755818][ T0] MDS: Mitigation: Clear CPU buffers [ 1.755822][ T0] TAA: Mitigation: Clear CPU buffers [ 1.755826][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.755831][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.755839][ T0] Spectre V2 : Spectre v2 / SpectreRSB: Filling RSB on context switch and VMEXIT [ 1.755854][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.755892][ T0] active return thunk: its_return_thunk [ 1.755907][ T0] Spectre V2 : Spectre BHI mitigation: SW BHB clearing on syscall and VM exit [ 1.755993][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 1.756000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 1.756005][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 1.756011][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 1.756018][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 2.017295][ T0] pid_max: default: 32768 minimum: 301 [ 2.018943][ T0] landlock: Up and running. [ 2.018949][ T0] Yama: becoming mindful. [ 2.019355][ T0] TOMOYO Linux initialized [ 2.020531][ T0] AppArmor: AppArmor initialized [ 2.022909][ T0] LSM support for eBPF active [ 2.029163][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc hugepage) [ 2.031944][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage) [ 2.032325][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.032506][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.035228][ T0] VFS: Finished mounting rootfs on nullfs [ 2.039769][ T0] Running RCU synchronous self tests [ 2.039779][ T0] Running RCU synchronous self tests [ 2.161024][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 2.165010][ T1] Performance Events: unsupported CPU family 6 model 79 no PMU driver, software events only. [ 2.165010][ T1] signal: max sigframe size: 1776 [ 2.175098][ T1] rcu: Hierarchical SRCU implementation. [ 2.175107][ T1] rcu: Max phase no-delay instances is 1000. [ 2.235126][ T1] Timer migration: 1 hierarchy levels; 8 children per group; 0 crossnode level [ 2.306761][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.307768][ T1] smp: Bringing up secondary CPUs ... [ 2.319386][ T1] smpboot: x86: Booting SMP configuration: [ 2.319395][ T1] .... node #0, CPUs: #1 [ 2.319770][ 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. [ 2.319770][ 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. [ 2.319770][ 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. [ 2.319770][ T1] smp: Brought up 2 nodes, 2 CPUs [ 2.319770][ T1] smpboot: Total of 2 processors activated (8800.61 BogoMIPS) [ 2.319770][ T1] Memory: 6466520K/8388204K available (167208K kernel code, 29637K rwdata, 39784K rodata, 25492K init, 129268K bss, 1733800K reserved, 0K cma-reserved) [ 2.330370][ T1] devtmpfs: initialized [ 2.334356][ T1] x86/mm: Memory block size: 128MB [ 2.407481][ T1] Running RCU synchronous self tests [ 2.407541][ T1] Running RCU synchronous self tests [ 2.407766][ T1] Running RCU Tasks wait API self tests [ 2.407766][ T1] Running RCU Tasks Trace wait API self tests [ 2.407766][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.407766][ T1] posixtimers hash table entries: 1024 (order: 6, 139264 bytes, vmalloc) [ 2.407766][ T1] futex hash table entries: 256 (49152 bytes on 2 NUMA nodes, total 96 KiB, linear). [ 2.409836][ T1] xor: automatically using best checksumming function avx [ 2.418566][ T1] PM: RTC time: 17:51:18, date: 2026-06-01 [ 2.435056][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 2.439279][ T1] audit: initializing netlink subsys (disabled) [ 2.445424][ T38] audit: type=2000 audit(1780336277.999:1): state=initialized audit_enabled=0 res=1 [ 2.450056][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.450425][ T1] cpuidle: using governor menu [ 2.450425][ T1] NET: Registered PF_QIPCRTR protocol family [ 2.458671][ T1] Freeing SMP alternatives memory: 128K [ 2.460491][ T10] Callback from call_rcu_tasks_trace() invoked. [ 2.462041][ T1] dca service started, version 1.12.1 [ 2.462288][ T1] PCI: Using configuration type 1 for base access [ 2.486597][ T1] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages [ 2.486612][ T1] HugeTLB: 16380 KiB vmemmap can be freed for a 1.00 GiB page [ 2.486626][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 2.486635][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 2.545921][ T1] raid6: using avx2x2 recovery algorithm [ 2.545935][ T1] raid6: skipped pq benchmark and selected avx2x4 [ 2.550708][ T1] ACPI: Added _OSI(Module Device) [ 2.550721][ T1] ACPI: Added _OSI(Processor Device) [ 2.550730][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.790917][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 2.828853][ T1] ACPI: \_SB_: platform _OSC: OS support mask [000e7eee] [ 2.864123][ T1] ACPI: Interpreter enabled [ 2.865225][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 2.865296][ T1] ACPI: Using IOAPIC for interrupt routing [ 2.865936][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 2.865947][ T1] PCI: Ignoring E820 reservations for host bridge windows [ 2.872847][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.222168][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.222300][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 3.222320][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 3.222857][ T1] acpi PNP0A03:00: _OSC: platform retains control of PCIe features (AE_ERROR) [ 3.223665][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended configuration space under this bridge [ 3.252791][ T1] PCI host bridge to bus 0000:00 [ 3.252807][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 3.253410][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.253449][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.253485][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.253522][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 3.253566][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.254250][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 conventional PCI endpoint [ 3.258988][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 conventional PCI endpoint [ 3.268601][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 conventional PCI endpoint [ 3.273125][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 3.281201][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 conventional PCI endpoint [ 3.285241][ T1] pci 0000:00:03.0: BAR 0 [io 0xc000-0xc03f] [ 3.285278][ T1] pci 0000:00:03.0: BAR 1 [mem 0xfe800000-0xfe80007f] [ 3.293449][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 conventional PCI endpoint [ 3.307042][ T1] pci 0000:00:04.0: BAR 0 [io 0xc040-0xc07f] [ 3.307070][ T1] pci 0000:00:04.0: BAR 1 [mem 0xfe801000-0xfe80107f] [ 3.312036][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 conventional PCI endpoint [ 3.326924][ T1] pci 0000:00:05.0: BAR 0 [mem 0xfe000000-0xfe7fffff] [ 3.327623][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 3.335363][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 conventional PCI endpoint [ 3.338690][ T1] pci 0000:00:06.0: BAR 0 [io 0xc080-0xc09f] [ 3.346468][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 conventional PCI endpoint [ 3.349884][ T1] pci 0000:00:07.0: BAR 0 [io 0xc0a0-0xc0bf] [ 3.349920][ T1] pci 0000:00:07.0: BAR 1 [mem 0xfe802000-0xfe80203f] [ 3.412699][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 3.422447][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 3.431924][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 3.441242][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 3.445997][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 3.477349][ T1] iommu: Default domain type: Translated [ 3.477364][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 3.488921][ T1] SCSI subsystem initialized [ 3.498655][ T1] ACPI: bus type USB registered [ 3.500240][ T1] usbcore: registered new interface driver usbfs [ 3.500240][ T1] usbcore: registered new interface driver hub [ 3.500240][ T1] usbcore: registered new device driver usb [ 3.503291][ T1] mc: Linux media interface: v0.10 [ 3.503792][ T1] videodev: Linux video capture interface: v2.00 [ 3.514206][ T1] pps_core: LinuxPPS API ver. 1 registered [ 3.514218][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 3.514577][ T1] PTP clock support registered [ 3.535523][ T1] EDAC MC: Ver: 3.0.0 [ 3.551467][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 3.587088][ T1] Bluetooth: Core ver 2.22 [ 3.587548][ T1] NET: Registered PF_BLUETOOTH protocol family [ 3.587558][ T1] Bluetooth: HCI device and connection manager initialized [ 3.587690][ T1] Bluetooth: HCI socket layer initialized [ 3.587729][ T1] Bluetooth: L2CAP socket layer initialized [ 3.587919][ T1] Bluetooth: SCO socket layer initialized [ 3.588083][ T1] NET: Registered PF_ATMPVC protocol family [ 3.588093][ T1] NET: Registered PF_ATMSVC protocol family [ 3.588699][ T1] NetLabel: Initializing [ 3.588705][ T1] NetLabel: domain hash size = 128 [ 3.588714][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 3.589525][ T1] NetLabel: unlabeled traffic allowed by default [ 3.596979][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 3.597639][ T1] NET: Registered PF_NFC protocol family [ 3.597799][ T1] mctp: management component transport protocol core [ 3.597816][ T1] NET: Registered PF_MCTP protocol family [ 3.625052][ T1] PCI: Using ACPI for IRQ routing [ 3.625052][ T1] e820: register RAM buffer resource [mem 0x0009fc00-0x0009ffff] [ 3.625052][ T1] e820: register RAM buffer resource [mem 0xbfffd000-0xbfffffff] [ 3.636341][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 3.636341][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 3.636341][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 3.636341][ T1] vgaarb: loaded [ 3.647831][ T1] clocksource: Switched to clocksource kvm-clock [ 3.657625][ T1] VFS: Disk quotas dquot_6.6.0 [ 3.658200][ T1] VFS: Dquot-cache hash table entries: 512 (4096 bytes) [ 3.671417][ T1] netfs: FS-Cache loaded [ 3.674406][ T1] CacheFiles: Loaded [ 3.676185][ T1] TOMOYO: 2.6.0 [ 3.676193][ T1] Mandatory Access Control activated. [ 3.690620][ T1] AppArmor: AppArmor Filesystem Enabled [ 3.693499][ T1] pnp: PnP ACPI init [ 3.737945][ T1] pnp: PnP ACPI: found 6 devices [ 3.862133][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 3.864672][ T1] NET: Registered PF_INET protocol family [ 3.867288][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 3.889412][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 8, 557056 bytes, vmalloc) [ 3.890355][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, vmalloc) [ 3.896528][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 3.920454][ T1] TCP bind hash table entries: 65536 (order: 13, 17825792 bytes, vmalloc hugepage) [ 3.937051][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 3.940637][ T1] MPTCP token hash table entries: 8192 (order: 9, 1245184 bytes, vmalloc) [ 3.949185][ T1] UDP hash table entries: 4096 (order: 9, 1835008 bytes, vmalloc) [ 3.955050][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 3.965068][ T1] RPC: Registered named UNIX socket transport module. [ 3.965084][ T1] RPC: Registered udp transport module. [ 3.965093][ T1] RPC: Registered tcp transport module. [ 3.965103][ T1] RPC: Registered tcp-with-tls transport module. [ 3.965112][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 3.970852][ T1] NET: Registered PF_XDP protocol family [ 3.971082][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 3.971103][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 3.971117][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 3.971132][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 3.981735][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 3.982067][ T1] PCI: CLS 0 bytes, default 64 [ 3.982569][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 3.982583][ T1] software IO TLB: mapped [mem 0x00000000b4600000-0x00000000b8600000] (64MB) [ 3.984156][ T1] ACPI: bus type thunderbolt registered [ 4.001157][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 4.020214][ T68] kworker/u8:2 (68) used greatest stack depth: 26152 bytes left [ 4.072716][ T1] kvm_amd: CPU 0 isn't AMD or Hygon [ 4.072747][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6c45b8f7, max_idle_ns: 440795205637 ns [ 4.073362][ T1] clocksource: Switched to clocksource tsc [ 4.129357][ T1] Initialise system trusted keyrings [ 4.135607][ T1] workingset: timestamp_bits=40 (anon: 35) max_order=21 bucket_order=0 (anon: 0) [ 4.146312][ T1] DLM installed [ 4.154281][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 4.166257][ T1] NFS: Registering the id_resolver key type [ 4.166422][ T1] Key type id_resolver registered [ 4.166434][ T1] Key type id_legacy registered [ 4.166866][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 4.167066][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 4.179763][ T1] smbdirect: subsystem loading... [ 4.194670][ T1] smbdirect: subsystem loaded [ 4.217602][ T1] Key type cifs.spnego registered [ 4.218071][ T1] Key type cifs.idmap registered [ 4.226838][ T1] ntfs3: Enabled Linux POSIX ACLs support [ 4.226850][ T1] ntfs3: Read-only LZX/Xpress compression included [ 4.227332][ T1] efs: 1.0a - http://aeschi.ch.eu.org/efs/ [ 4.227518][ T1] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 4.235855][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 4.236389][ T1] QNX4 filesystem 0.2.3 registered. [ 4.236528][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 4.238163][ T1] fuse: init (API version 7.45) [ 4.250164][ T1] orangefs_debugfs_init: called with debug mask: :none: :0: [ 4.254111][ T1] orangefs_init: module version upstream loaded [ 4.255779][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 4.275077][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 4.287402][ T1] 9p: Installing v9fs 9p2000 file system support [ 4.288568][ T1] NILFS version 2 loaded [ 4.288580][ T1] befs: version: 0.9.3 [ 4.290119][ T1] ocfs2: Registered cluster interface o2cb [ 4.295250][ T1] ocfs2: Registered cluster interface user [ 4.297086][ T1] OCFS2 User DLM kernel interface loaded [ 4.346223][ T1] gfs2: GFS2 installed [ 4.368343][ T1] ceph: loaded (mds proto 32) [ 4.379993][ T1] NET: Registered PF_ALG protocol family [ 4.380552][ T1] async_tx: api initialized (async) [ 4.380613][ T1] Key type asymmetric registered [ 4.380692][ T1] Asymmetric key parser 'x509' registered [ 4.381215][ T1] Asymmetric key parser 'pkcs8' registered [ 4.381233][ T1] Key type pkcs7_test registered [ 4.382312][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 239) [ 4.384355][ T1] io scheduler mq-deadline registered [ 4.384370][ T1] io scheduler kyber registered [ 4.385103][ T1] io scheduler bfq registered [ 4.410378][ T1] input: Power Button as /devices/platform/LNXPWRBN:00/input/input0 [ 4.413604][ T1] ACPI: button: Power Button [PWRF] [ 4.417943][ T1] input: Sleep Button as /devices/platform/LNXSLPBN:00/input/input1 [ 4.421388][ T1] ACPI: button: Sleep Button [SLPF] [ 4.434413][ T166] kworker/u8:6 (166) used greatest stack depth: 25672 bytes left [ 4.456676][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 4.505413][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 4.505588][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.551628][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 4.551796][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.597052][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 4.597184][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 4.629508][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 5.594450][ T1] N_HDLC line discipline registered with maxframe=4096 [ 5.596199][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 5.607644][ T1] 00:02: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 5.641316][ T1] 00:03: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 5.667167][ T1] 00:04: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 5.695301][ T1] 00:05: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 5.746033][ T1] Non-volatile memory driver v1.3 [ 5.791768][ T1] usbcore: registered new interface driver xillyusb [ 5.803224][ T1] ACPI: bus type drm_connector registered [ 5.814936][ T1] [drm] Initialized vgem 1.0.0 for vgem on minor 0 [ 5.836382][ T1] [drm] Initialized vkms 1.0.0 for vkms on minor 1 [ 5.989106][ T1] Console: switching to colour frame buffer device 128x48 [ 6.054242][ T1] faux_driver vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 6.055345][ T1] usbcore: registered new interface driver udl [ 6.065058][ T1] usbcore: registered new interface driver gm12u320 [ 6.066297][ T1] usbcore: registered new interface driver gud [ 6.273282][ T1] brd: module loaded [ 6.806678][ T1] loop: module loaded [ 7.203545][ T1] zram: Added device: zram0 [ 7.234905][ T1] null_blk: disk nullb0 created [ 7.234921][ T1] null_blk: module loaded [ 7.243311][ T1] Guest personality initialized and is inactive [ 7.244958][ T1] VMCI host device registered (name=vmci, major=10, minor=267) [ 7.244975][ T1] Initialized host personality [ 7.245743][ T1] usbcore: registered new interface driver rtsx_usb [ 7.253228][ T1] usbcore: registered new interface driver viperboard [ 7.256570][ T1] usbcore: registered new interface driver dln2 [ 7.259548][ T1] usbcore: registered new interface driver pn533_usb [ 7.276299][ T1] nfcsim 0.2 initialized [ 7.277076][ T1] usbcore: registered new interface driver port100 [ 7.278968][ T1] usbcore: registered new interface driver nfcmrvl [ 7.296413][ T1] Loading iSCSI transport class v2.0-870. [ 7.329504][ T1] virtio_scsi virtio0: 1/0/0 default/read/poll queues [ 7.357734][ T1] scsi host0: Virtio SCSI HBA [ 7.358305][ T1] blk-mq: reduced tag depth to 10240 [ 7.598746][ T1] st: Version 20160209, fixed bufsize 32768, s/g segs 256 [ 7.601369][ T1056] kworker/u8:5 (1056) used greatest stack depth: 24976 bytes left [ 7.617089][ T125] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 7.635592][ T1] ------------[ cut here ]------------ [ 7.635604][ T1] workqueue: nvme_tcp_wq is using neither WQ_PERCPU or WQ_UNBOUND. Setting WQ_PERCPU. [ 7.635618][ T1] WARNING: kernel/workqueue.c:5856 at __alloc_workqueue+0x1d02/0x2070, CPU#1: swapper/0/1 [ 7.635652][ T1] Modules linked in: [ 7.635686][ T1] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 7.635705][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 7.635718][ T1] RIP: 0010:__alloc_workqueue+0x1d07/0x2070 [ 7.635740][ T1] Code: e9 36 f9 ff ff e8 89 90 37 00 e9 05 fb ff ff e8 7f 90 37 00 e9 92 fb ff ff e8 75 90 37 00 48 8d 3d ce 33 02 0e 48 8b 74 24 20 <67> 48 0f b9 3a 81 cd 00 01 00 00 e9 88 e5 ff ff e8 54 90 37 00 48 [ 7.635754][ T1] RSP: 0000:ffffc900000677a8 EFLAGS: 00010293 [ 7.635768][ T1] RAX: ffffffff818dbc1b RBX: 0000000000000000 RCX: ffff88801cec5d00 [ 7.635781][ T1] RDX: 0000000000000000 RSI: ffff888027487568 RDI: ffffffff8f8feff0 [ 7.635793][ T1] RBP: 0000000000000058 R08: ffff88801cec5d00 R09: 0000000000000002 [ 7.635807][ T1] R10: 0000000000000100 R11: 0000000000000102 R12: dffffc0000000000 [ 7.635835][ T1] R13: ffff888027487400 R14: ffffc900000678c0 R15: 0000000000000000 [ 7.635847][ T1] FS: 0000000000000000(0000) GS:ffff888125fca000(0000) knlGS:0000000000000000 [ 7.635861][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.635872][ T1] CR2: 0000000000000000 CR3: 000000000ddb8000 CR4: 00000000003526f0 [ 7.635886][ T1] Call Trace: [ 7.635913][ T1] [ 7.635931][ T1] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 7.635959][ T1] ? rt_mutex_slowunlock+0x4a7/0x8b0 [ 7.635988][ T1] ? reacquire_held_locks+0x104/0x190 [ 7.636011][ T1] ? rt_spin_lock+0x1e0/0x400 [ 7.636038][ T1] alloc_workqueue_noprof+0xe3/0x210 [ 7.636064][ T1] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 7.636086][ T1] ? add_device_randomness+0xc1/0x100 [ 7.636107][ T1] ? __pfx_add_device_randomness+0x10/0x10 [ 7.636129][ T1] ? __pfx_nvme_fc_init_module+0x10/0x10 [ 7.636147][ T1] ? __pfx_nvme_tcp_init_module+0x10/0x10 [ 7.636165][ T1] nvme_tcp_init_module+0x27/0x100 [ 7.636186][ T1] do_one_initcall+0x250/0x870 [ 7.636208][ T1] ? __pfx_nvme_tcp_init_module+0x10/0x10 [ 7.636227][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 7.636256][ T1] ? __pfx___schedule+0x10/0x10 [ 7.636280][ T1] ? __pfx___schedule+0x10/0x10 [ 7.636314][ T1] ? irqentry_exit+0x218/0x8b0 [ 7.636331][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 7.636347][ T1] ? irqentry_exit+0x218/0x8b0 [ 7.636362][ T1] ? trace_irq_disable+0x3b/0x140 [ 7.636395][ T1] ? parameq+0xec/0x170 [ 7.636418][ T1] ? __sanitizer_cov_trace_cmp8+0x92/0xa0 [ 7.636439][ T1] ? parameq+0x14d/0x170 [ 7.636463][ T1] ? parse_args+0x9fc/0xb00 [ 7.636502][ T1] ? rcu_is_watching+0x15/0xb0 [ 7.636531][ T1] do_initcall_level+0x104/0x190 [ 7.636554][ T1] ? kernel_init+0x1d/0x1d0 [ 7.636574][ T1] do_initcalls+0x59/0xa0 [ 7.636596][ T1] kernel_init_freeable+0x2a6/0x3e0 [ 7.636617][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.636639][ T1] kernel_init+0x1d/0x1d0 [ 7.636657][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.636675][ T1] ret_from_fork+0x514/0xb70 [ 7.636708][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 7.636729][ T1] ? __switch_to+0xc79/0x1410 [ 7.636750][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.636771][ T1] ret_from_fork_asm+0x1a/0x30 [ 7.636807][ T1] [ 7.636822][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 7.636835][ T1] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 7.636854][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 7.636864][ T1] Call Trace: [ 7.636870][ T1] [ 7.636877][ T1] vpanic+0x56c/0xa60 [ 7.636900][ T1] ? __pfx__printk+0x10/0x10 [ 7.636917][ T1] ? __pfx_vpanic+0x10/0x10 [ 7.636938][ T1] ? is_bpf_text_address+0x292/0x2b0 [ 7.636962][ T1] ? is_bpf_text_address+0x26/0x2b0 [ 7.637000][ T1] panic+0xc5/0xd0 [ 7.637022][ T1] ? __pfx_panic+0x10/0x10 [ 7.637052][ T1] ? ret_from_fork_asm+0x1a/0x30 [ 7.637079][ T1] __warn+0x315/0x4c0 [ 7.637100][ T1] ? __alloc_workqueue+0x1d02/0x2070 [ 7.637122][ T1] ? __alloc_workqueue+0x1d02/0x2070 [ 7.637144][ T1] __report_bug+0x339/0x540 [ 7.637166][ T1] ? __alloc_workqueue+0x1d02/0x2070 [ 7.637186][ T1] ? __pfx___report_bug+0x10/0x10 [ 7.637213][ T1] report_bug_entry+0x19a/0x290 [ 7.637227][ T1] ? __alloc_workqueue+0x1d07/0x2070 [ 7.637240][ T1] ? __alloc_workqueue+0x1d0c/0x2070 [ 7.637256][ T1] handle_bug+0xce/0x200 [ 7.637275][ T1] exc_invalid_op+0x1a/0x50 [ 7.637293][ T1] asm_exc_invalid_op+0x1a/0x20 [ 7.637308][ T1] RIP: 0010:__alloc_workqueue+0x1d07/0x2070 [ 7.637328][ T1] Code: e9 36 f9 ff ff e8 89 90 37 00 e9 05 fb ff ff e8 7f 90 37 00 e9 92 fb ff ff e8 75 90 37 00 48 8d 3d ce 33 02 0e 48 8b 74 24 20 <67> 48 0f b9 3a 81 cd 00 01 00 00 e9 88 e5 ff ff e8 54 90 37 00 48 [ 7.637341][ T1] RSP: 0000:ffffc900000677a8 EFLAGS: 00010293 [ 7.637356][ T1] RAX: ffffffff818dbc1b RBX: 0000000000000000 RCX: ffff88801cec5d00 [ 7.637367][ T1] RDX: 0000000000000000 RSI: ffff888027487568 RDI: ffffffff8f8feff0 [ 7.637379][ T1] RBP: 0000000000000058 R08: ffff88801cec5d00 R09: 0000000000000002 [ 7.637389][ T1] R10: 0000000000000100 R11: 0000000000000102 R12: dffffc0000000000 [ 7.637397][ T1] R13: ffff888027487400 R14: ffffc900000678c0 R15: 0000000000000000 [ 7.637414][ T1] ? __alloc_workqueue+0x1cfb/0x2070 [ 7.637438][ T1] ? __alloc_workqueue+0x1cfb/0x2070 [ 7.637458][ T1] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 7.637483][ T1] ? rt_mutex_slowunlock+0x4a7/0x8b0 [ 7.637502][ T1] ? reacquire_held_locks+0x104/0x190 [ 7.637523][ T1] ? rt_spin_lock+0x1e0/0x400 [ 7.637553][ T1] alloc_workqueue_noprof+0xe3/0x210 [ 7.637576][ T1] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 7.637595][ T1] ? add_device_randomness+0xc1/0x100 [ 7.637614][ T1] ? __pfx_add_device_randomness+0x10/0x10 [ 7.637635][ T1] ? __pfx_nvme_fc_init_module+0x10/0x10 [ 7.637653][ T1] ? __pfx_nvme_tcp_init_module+0x10/0x10 [ 7.637672][ T1] nvme_tcp_init_module+0x27/0x100 [ 7.637691][ T1] do_one_initcall+0x250/0x870 [ 7.637713][ T1] ? __pfx_nvme_tcp_init_module+0x10/0x10 [ 7.637731][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 7.637759][ T1] ? __pfx___schedule+0x10/0x10 [ 7.637782][ T1] ? __pfx___schedule+0x10/0x10 [ 7.637814][ T1] ? irqentry_exit+0x218/0x8b0 [ 7.637830][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 7.637846][ T1] ? irqentry_exit+0x218/0x8b0 [ 7.637861][ T1] ? trace_irq_disable+0x3b/0x140 [ 7.637895][ T1] ? parameq+0xec/0x170 [ 7.637920][ T1] ? __sanitizer_cov_trace_cmp8+0x92/0xa0 [ 7.637941][ T1] ? parameq+0x14d/0x170 [ 7.637966][ T1] ? parse_args+0x9fc/0xb00 [ 7.638018][ T1] ? rcu_is_watching+0x15/0xb0 [ 7.638047][ T1] do_initcall_level+0x104/0x190 [ 7.638069][ T1] ? kernel_init+0x1d/0x1d0 [ 7.638089][ T1] do_initcalls+0x59/0xa0 [ 7.638112][ T1] kernel_init_freeable+0x2a6/0x3e0 [ 7.638134][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.638156][ T1] kernel_init+0x1d/0x1d0 [ 7.638175][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.638194][ T1] ret_from_fork+0x514/0xb70 [ 7.638219][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 7.638241][ T1] ? __switch_to+0xc79/0x1410 [ 7.638263][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.638285][ T1] ret_from_fork_asm+0x1a/0x30 [ 7.638323][ T1] [ 7.638651][ T1] Kernel Offset: disabled