WARNING in drm_mode_config_validate nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... smbdirect: subsystem loading... smbdirect: subsystem loaded Key type cifs.spnego registered Key type cifs.idmap registered jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. romfs: ROMFS MTD (C) 2007 Red Hat, Inc. QNX4 filesystem 0.2.3 registered. qnx6: QNX6 filesystem 1.0.0 registered. fuse: init (API version 7.45) orangefs_debugfs_init: called with debug mask: :none: :0: orangefs_init: module version upstream loaded JFS: nTxBlock = 8192, nTxLock = 65536 SGI XFS with ACLs, security attributes, realtime, scrub, repair, quota, no debug enabled 9p: Installing v9fs 9p2000 file system support NILFS version 2 loaded befs: version: 0.9.3 ocfs2: Registered cluster interface o2cb ocfs2: Registered cluster interface user OCFS2 User DLM kernel interface loaded gfs2: GFS2 installed ceph: loaded (mds proto 32) cryptd: max_cpu_qlen set to 1000 NET: Registered PF_ALG protocol family async_tx: api initialized (async) Key type asymmetric registered Asymmetric key parser 'x509' registered Asymmetric key parser 'pkcs8' registered Key type pkcs7_test registered Block layer SCSI generic (bsg) driver version 0.4 loaded (major 240) io scheduler mq-deadline registered io scheduler kyber registered io scheduler bfq registered 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 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 ------------[ cut here ]------------ [PLANE:35:plane-0] pixel format with alpha exposed but blend mode not setup WARNING: drivers/gpu/drm/drm_mode_config.c:873 at validate_blend_mode_for_alpha_formats drivers/gpu/drm/drm_mode_config.c:872 [inline], CPU#0: swapper/0/1 WARNING: drivers/gpu/drm/drm_mode_config.c:873 at drm_mode_config_validate+0x1c6a/0x1e60 drivers/gpu/drm/drm_mode_config.c:938, CPU#0: swapper/0/1 Modules linked in: CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:validate_blend_mode_for_alpha_formats drivers/gpu/drm/drm_mode_config.c:872 [inline] RIP: 0010:drm_mode_config_validate+0x1cab/0x1e60 drivers/gpu/drm/drm_mode_config.c:938 Code: 0f 85 ae 00 00 00 4d 8d 77 10 8b 6d 00 4c 89 f0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 f7 e8 bd 24 bc fc 49 8b 16 4c 89 ef 89 ee <67> 48 0f b9 3a eb 05 e8 19 c0 50 fc 49 bd 00 00 00 00 00 fc ff df RSP: 0000:ffffc90000067830 EFLAGS: 00010246 RAX: 1ffff110049e4e08 RBX: dffffc0000000000 RCX: ffff88801ea4dd00 RDX: ffff888024c0bc00 RSI: 0000000000000023 RDI: ffffffff8fcd8640 RBP: 0000000000000023 R08: ffff88802324b54b R09: 1ffff110046496a9 R10: dffffc0000000000 R11: ffffed10046496aa R12: dffffc0000000000 R13: ffffffff8fcd8640 R14: ffff888024f27040 R15: ffff888024f27030 FS: 0000000000000000(0000) GS:ffff8881259c4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88823ffff000 CR3: 000000000e13c000 CR4: 00000000003526f0 Call Trace: drm_dev_register+0x7c/0xd70 drivers/gpu/drm/drm_drv.c:1077 vkms_create+0x40d/0x4f0 drivers/gpu/drm/vkms/vkms_drv.c:208 vkms_init+0x57/0x80 drivers/gpu/drm/vkms/vkms_drv.c:240 do_one_initcall+0x247/0x7e0 init/main.c:1353 do_initcall_level+0x10a/0x1a0 init/main.c:1415 do_initcalls+0x3e/0x70 init/main.c:1431 kernel_init_freeable+0x29d/0x3e0 init/main.c:1666 kernel_init+0x22/0x1d0 init/main.c:1556 ret_from_fork+0x510/0xb60 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---------------- Code disassembly (best guess): 0: 0f 85 ae 00 00 00 jne 0xb4 6: 4d 8d 77 10 lea 0x10(%r15),%r14 a: 8b 6d 00 mov 0x0(%rbp),%ebp d: 4c 89 f0 mov %r14,%rax 10: 48 c1 e8 03 shr $0x3,%rax 14: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) 18: 74 08 je 0x22 1a: 4c 89 f7 mov %r14,%rdi 1d: e8 bd 24 bc fc call 0xfcbc24df 22: 49 8b 16 mov (%r14),%rdx 25: 4c 89 ef mov %r13,%rdi 28: 89 ee mov %ebp,%esi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: eb 05 jmp 0x36 31: e8 19 c0 50 fc call 0xfc50c04f 36: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13 3d: fc ff df 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@10.128.1.121" "pwd"]: exit status 255 ssh: connect to host 10.128.1.121 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 bfe0d815-ba3a-4c21-20e0-96637e722d7d 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 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8) #0 SMP PREEMPT_DYNAMIC 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] Bserialport: Connected to syzkaller.us-central1-f.ci2-linux-5-15-kasan-test-job-parallel-0 port 1 (session ID: 3472820c11d7dfc90f373a0c1091f640d123aaefd4ec17af6331c148ae04d4b9, active connections: 1). IOS-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 07/24/2026 [ 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 [ 0.000007][ T0] kvm-clock: using sched offset of 10108853355 cycles [ 0.002426][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.011830][ T0] tsc: Detected 2199.998 MHz processor [ 0.019289][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.023288][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs [ 0.027917][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.031371][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.039424][ T0] found SMP MP-table at [mem 0x000f2890-0x000f289f] [ 0.043598][ T0] Using GB pages for direct mapping [ 0.049507][ T0] ACPI: Early table checksum verification disabled [ 0.052827][ T0] ACPI: RSDP 0x00000000000F2610 000014 (v00 Google) [ 0.056291][ T0] ACPI: RSDT 0x00000000BFFFFFB0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.061010][ T0] ACPI: FACP 0x00000000BFFFF3B0 000114 (v06 Google GOOGFACP 00000001 GOOG 00000001) [ 0.065492][ T0] ACPI: DSDT 0x00000000BFFFD5C0 001DED (v02 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.069696][ T0] ACPI: FACS 0x00000000BFFFD580 000040 [ 0.071722][ T0] ACPI: FACS 0x00000000BFFFD580 000040 [ 0.073497][ T0] ACPI: SRAT 0x00000000BFFFFEA0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.076894][ T0] ACPI: APIC 0x00000000BFFFFDF0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.080397][ T0] ACPI: SSDT 0x00000000BFFFF4D0 000914 (v02 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.085124][ T0] ACPI: WAET 0x00000000BFFFFE70 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.091529][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff3b0-0xbffff4c3] [ 0.095134][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd5c0-0xbffff3ac] [ 0.099083][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd580-0xbfffd5bf] [ 0.102762][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd580-0xbfffd5bf] [ 0.105723][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffea0-0xbfffff67] [ 0.108949][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdf0-0xbffffe65] [ 0.111784][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff4d0-0xbffffde3] [ 0.115378][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe70-0xbffffe97] [ 0.119619][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.122558][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.125247][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.128486][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00001000-0xbfffffff] [ 0.132869][ T0] NUMA: Node 0 [mem 0x00001000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00001000-0x23fffffff] [ 0.137997][ T0] Faking node 0 at [mem 0x0000000000001000-0x0000000140000fff] (5120MB) [ 0.142090][ T0] Faking node 1 at [mem 0x0000000140001000-0x000000023fffffff] (4095MB) [ 0.146093][ T0] NODE_DATA(0) allocated [mem 0x13fffb900-0x140000fff] [ 0.150416][ T0] NODE_DATA(1) allocated [mem 0x23fff7900-0x23fffcfff] [ 0.448564][ T0] KernelAddressSanitizer initialized (generic) [ 0.452718][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.454697][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.457025][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.460433][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.463211][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.465939][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.469434][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.473369][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.476463][ T0] CPU topo: Max. logical packages: 1 [ 0.479046][ T0] CPU topo: Max. logical nodes: 1 [ 0.481915][ T0] CPU topo: Num. nodes per package: 1 [ 0.484080][ T0] CPU topo: Max. logical dies: 1 [ 0.486135][ T0] CPU topo: Max. dies per package: 1 [ 0.488219][ T0] CPU topo: Max. threads per core: 2 [ 0.491525][ T0] CPU topo: Num. cores per package: 1 [ 0.494188][ T0] CPU topo: Num. threads per package: 2 [ 0.496568][ T0] CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs [ 0.499877][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.503243][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff] [ 0.506842][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xffffffff] [ 0.510416][ T0] [gap 0xc0000000-0xfffbbfff] available for PCI devices [ 0.513347][ T0] Booting paravirtualized kernel on KVM [ 0.515696][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.615546][ T0] Zone ranges: [ 0.617218][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.620914][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.624195][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.627668][ T0] Device empty [ 0.629531][ T0] Movable zone start for each node [ 0.631729][ T0] Early memory node ranges [ 0.633614][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.636654][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.640958][ T0] node 0: [mem 0x0000000100000000-0x0000000140000fff] [ 0.643995][ T0] node 1: [mem 0x0000000140001000-0x000000023fffffff] [ 0.647055][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x0000000140000fff] [ 0.651101][ T0] Initmem setup node 1 [mem 0x0000000140001000-0x000000023fffffff] [ 0.693509][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.699205][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.762460][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.822940][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2 [ 0.827313][ T0] percpu: Embedded 71 pages/cpu s251272 r8192 d31352 u1048576 [ 0.830895][ T0] kvm-guest: PV spinlocks enabled [ 0.833058][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.836369][ 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 \ [ 0.873943][ T0] Kernel command line: comedi.comedi_num_legacy_minors=4 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.882086][ T0] Unknown kernel command line parameters "nbds_max=32", will be passed to user space. [ 0.886668][ T0] random: crng init done [ 0.888746][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes [ 0.893283][ T0] software IO TLB: area num 2. [ 0.923507][ T0] Fallback order for Node 0: 0 1 [ 0.923538][ T0] Fallback order for Node 1: 1 0 [ 0.923551][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2097051 [ 0.930495][ T0] Policy zone: Normal [ 0.931942][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off [ 0.934795][ T0] stackdepot: allocating hash table via alloc_large_system_hash [ 0.939123][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear) [ 0.946824][ T0] stackdepot: allocating space for 8192 stack pools via memblock [ 1.621397][ T0] ********************************************************** [ 1.624788][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.627506][ T0] ** ** [ 1.630403][ T0] ** This system shows unhashed kernel memory addresses ** [ 1.633645][ T0] ** via the console, logs, and other interfaces. This ** [ 1.637177][ T0] ** might reduce the security of your system. ** [ 1.640214][ T0] ** ** [ 1.644357][ T0] ** If you see this message and you are not debugging ** [ 1.647146][ T0] ** the kernel, report this immediately to your system ** [ 1.650118][ T0] ** administrator! ** [ 1.652865][ T0] ** ** [ 1.655209][ T0] ** Use hash_pointers=always to force this mode off ** [ 1.657864][ T0] ** ** [ 1.661047][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.664426][ T0] ********************************************************** [ 1.669350][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.783769][ T0] allocated 150994944 bytes of page_ext [ 1.786085][ T0] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.800450][ T0] Node 0, zone DMA32: page owner found early allocated 19008 pages [ 1.807602][ T0] Node 0, zone Normal: page owner found early allocated 131 pages [ 1.820152][ T0] Node 1, zone Normal: page owner found early allocated 17863 pages [ 1.823247][ T0] Kernel/User page tables isolation: enabled [ 1.826931][ T0] Dynamic Preempt: full [ 1.829697][ T0] Running RCU self tests [ 1.831873][ T0] Running RCU synchronous self tests [ 1.836053][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.838550][ T0] rcu: RCU lockdep checking is enabled. [ 1.840139][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.842803][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.845835][ T0] rcu: RCU debug extended QS entry/exit. [ 1.847983][ T0] All grace periods are expedited (rcu_expedited). [ 1.850171][ T0] Trampoline variant of Tasks RCU enabled. [ 1.852528][ T0] Tracing variant of Tasks RCU enabled. [ 1.855073][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.858215][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.861927][ T0] Running RCU synchronous self tests [ 1.863750][ T0] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2. [ 2.049427][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 2.053716][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 2.056803][ T0] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.063226][ T0] Console: colour VGA+ 80x25 [ 2.065244][ T0] printk: legacy console [ttyS0] enabled [ 2.065244][ T0] printk: legacy console [ttyS0] enabled [ 2.069909][ T0] printk: legacy bootconsole [earlyser0] disabled [ 2.069909][ T0] printk: legacy bootconsole [earlyser0] disabled [ 2.075776][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 2.079370][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 2.081155][ T0] ... MAX_LOCK_DEPTH: 48 [ 2.083534][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 2.085981][ T0] ... CLASSHASH_SIZE: 4096 [ 2.088604][ T0] ... MAX_LOCKDEP_ENTRIES: 1048576 [ 2.091025][ T0] ... MAX_LOCKDEP_CHAINS: 1048576 [ 2.093885][ T0] ... CHAINHASH_SIZE: 524288 [ 2.096631][ T0] memory used by lock dependency info: 106625 kB [ 2.099553][ T0] memory used for stack traces: 8320 kB [ 2.102168][ T0] per task-struct memory footprint: 1920 bytes [ 2.105030][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 2.110927][ T0] ACPI: Core revision 20260408 [ 2.114366][ T0] APIC: Switch to symmetric I/O mode setup [ 2.117419][ T0] x2apic enabled [ 2.123464][ T0] APIC: Switched APIC routing to: physical x2apic [ 2.134954][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 2.138992][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns [ 2.144002][ T0] Calibrating delay loop (skipped) preset value.. 4399.99 BogoMIPS (lpj=21999980) [ 2.154694][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 2.157611][ T0] Last level dTLB entries: 4KB 64, 2MB 32, 4MB 32, 1GB 4 [ 2.164077][ T0] mitigations: Enabled attack vectors: user_kernel, user_user, guest_host, guest_guest, SMT mitigations: auto [ 2.169422][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 2.174004][ T0] Spectre V2 : Mitigation: IBRS [ 2.175982][ T0] RETBleed: Mitigation: IBRS [ 2.177870][ T0] ITS: Mitigation: Aligned branch/return thunks [ 2.180385][ T0] Spectre V2 : User space: Mitigation: STIBP via prctl [ 2.184004][ T0] MDS: Mitigation: Clear CPU buffers [ 2.186208][ T0] TAA: Mitigation: Clear CPU buffers [ 2.188577][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 2.191818][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 2.194007][ T0] Spectre V2 : Spectre v2 / SpectreRSB: Filling RSB on context switch and VMEXIT [ 2.198450][ T0] Spectre V2 : Enabling IBPB for BPF [ 2.200833][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 2.204057][ T0] active return thunk: its_return_thunk [ 2.206393][ T0] Spectre V2 : Spectre BHI mitigation: SW BHB clearing on syscall and VM exit [ 2.214079][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 2.218310][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 2.221846][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 2.224008][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 2.227264][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 2.639015][ T0] pid_max: default: 32768 minimum: 301 [ 2.642733][ T0] landlock: Up and running. [ 2.643999][ T0] Yama: becoming mindful. [ 2.645966][ T0] TOMOYO Linux initialized [ 2.648848][ T0] AppArmor: AppArmor initialized [ 2.652975][ T0] LSM support for eBPF active [ 2.660515][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc hugepage) [ 2.667015][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage) [ 2.674436][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.678877][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.686076][ T0] VFS: Finished mounting rootfs on nullfs [ 2.693581][ T0] Running RCU synchronous self tests [ 2.694008][ T0] Running RCU synchronous self tests [ 2.820250][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 2.823983][ T1] Performance Events: unsupported CPU family 6 model 79 no PMU driver, software events only. [ 2.824137][ T1] signal: max sigframe size: 1776 [ 2.827165][ T1] rcu: Hierarchical SRCU implementation. [ 2.829998][ T1] rcu: Max phase no-delay instances is 1000. [ 2.835271][ T1] Timer migration: 1 hierarchy levels; 8 children per group; 0 crossnode level [ 2.920984][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.925031][ T1] smp: Bringing up secondary CPUs ... [ 2.930202][ T1] smpboot: x86: Booting SMP configuration: [ 2.932685][ T1] .... node #0, CPUs: #1 [ 2.934993][ 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. [ 2.940484][ 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. [ 2.944011][ 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. [ 2.954376][ T1] smp: Brought up 2 nodes, 2 CPUs [ 2.956554][ T1] smpboot: Total of 2 processors activated (8799.99 BogoMIPS) [ 2.966055][ T1] Memory: 6488728K/8388204K available (171786K kernel code, 28943K rwdata, 39752K rodata, 26180K init, 119272K bss, 1725832K reserved, 0K cma-reserved) [ 2.975971][ T1] devtmpfs: initialized [ 2.978094][ T1] x86/mm: Memory block size: 128MB [ 3.047157][ T1] Running RCU synchronous self tests [ 3.049228][ T1] Running RCU synchronous self tests [ 3.054391][ T1] Running RCU Tasks wait API self tests [ 3.056699][ T1] Running RCU Tasks Trace wait API self tests [ 3.064441][ T1] posixtimers hash table entries: 1024 (order: 5, 73728 bytes, vmalloc) [ 3.068087][ T1] futex hash table entries: 256 (32768 bytes on 2 NUMA nodes, total 64 KiB, linear). [ 3.075105][ T1] xor: automatically using best checksumming function avx [ 3.083120][ T1] PM: RTC time: 00:35:41, date: 2026-08-23 [ 3.094018][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 3.101219][ T1] audit: initializing netlink subsys (disabled) [ 3.104387][ T30] audit: type=2000 audit(1787445341.642:1): state=initialized audit_enabled=0 res=1 [ 3.117998][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 3.118024][ T1] thermal_sys: Registered thermal governor 'user_space' [ 3.121325][ T10] Callback from call_rcu_tasks_trace() invoked. [ 3.124326][ T1] cpuidle: using governor menu [ 3.127443][ T1] NET: Registered PF_QIPCRTR protocol family [ 3.136731][ T1] dca service started, version 1.12.1 [ 3.139444][ T1] PCI: Using configuration type 1 for base access [ 3.157155][ T1] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages [ 3.161196][ T1] HugeTLB: 16380 KiB vmemmap can be freed for a 1.00 GiB page [ 3.164306][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 3.167444][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 3.218180][ T1] raid6: using avx2x2 recovery algorithm [ 3.221096][ T1] raid6: skipped pq benchmark and selected avx2x4 [ 3.228797][ T1] ACPI: Added _OSI(Module Device) [ 3.231645][ T1] ACPI: Added _OSI(Processor Device) [ 3.234021][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 3.478528][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 3.526132][ T1] ACPI: \_SB_: platform _OSC: OS support mask [000e7eee] [ 3.581526][ T1] ACPI: Interpreter enabled [ 3.584018][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 3.586554][ T1] ACPI: Using IOAPIC for interrupt routing [ 3.589560][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.594009][ T1] PCI: Ignoring E820 reservations for host bridge windows [ 3.609940][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 4.033459][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 4.034675][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended configuration space under this bridge [ 4.105851][ T1] PCI host bridge to bus 0000:00 [ 4.109187][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 4.113004][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0x0fff window] [ 4.114048][ T1] pci_bus 0000:00: root bus resource [io 0xc000-0xffff window] [ 4.118206][ T1] pci_bus 0000:00: root bus resource [io 0xa000-0xbfff window] [ 4.124085][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 4.127787][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 4.131518][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 4.134560][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 conventional PCI endpoint [ 4.145960][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 conventional PCI endpoint [ 4.160958][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 conventional PCI endpoint [ 4.170492][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.186036][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 conventional PCI endpoint [ 4.197571][ T1] pci 0000:00:03.0: BAR 0 [io 0xc000-0xc03f] [ 4.201078][ T1] pci 0000:00:03.0: BAR 1 [mem 0xfe800000-0xfe80007f] [ 4.211879][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 conventional PCI endpoint [ 4.224068][ T1] pci 0000:00:04.0: BAR 0 [io 0xc040-0xc07f] [ 4.227062][ T1] pci 0000:00:04.0: BAR 1 [mem 0xfe801000-0xfe80107f] [ 4.241101][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 conventional PCI endpoint [ 4.257406][ T1] pci 0000:00:05.0: BAR 0 [mem 0xfe000000-0xfe7fffff] [ 4.261291][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 4.274179][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 conventional PCI endpoint [ 4.284072][ T1] pci 0000:00:06.0: BAR 0 [io 0xc080-0xc09f] [ 4.297782][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 conventional PCI endpoint [ 4.308499][ T1] pci 0000:00:07.0: BAR 0 [io 0xc0a0-0xc0bf] [ 4.314053][ T1] pci 0000:00:07.0: BAR 1 [mem 0xfe802000-0xfe80203f] [ 4.381460][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 4.394368][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 4.407153][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 4.420160][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 4.430144][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 4.474227][ T1] iommu: Default domain type: Translated [ 4.476734][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 4.488713][ T1] SCSI subsystem initialized [ 4.494717][ T1] ACPI: bus type USB registered [ 4.498514][ T1] usbcore: registered new interface driver usbfs [ 4.501934][ T1] usbcore: registered new interface driver hub [ 4.504396][ T1] usbcore: registered new device driver usb [ 4.510708][ T1] mc: Linux media interface: v0.10 [ 4.514567][ T1] videodev: Linux video capture interface: v2.00 [ 4.518499][ T1] pps_core: LinuxPPS API ver. 1 registered [ 4.520975][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 4.524217][ T1] PTP clock support registered [ 4.534743][ T1] EDAC MC: Ver: 3.0.0 [ 4.546352][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 4.559993][ T1] Bluetooth: Core ver 2.22 [ 4.562225][ T1] NET: Registered PF_BLUETOOTH protocol family [ 4.564007][ T1] Bluetooth: HCI device and connection manager initialized [ 4.567255][ T1] Bluetooth: HCI socket layer initialized [ 4.569526][ T1] Bluetooth: L2CAP socket layer initialized [ 4.572754][ T1] Bluetooth: SCO socket layer initialized [ 4.574152][ T1] NET: Registered PF_ATMPVC protocol family [ 4.577069][ T1] NetLabel: Initializing [ 4.578956][ T1] NetLabel: domain hash size = 128 [ 4.581043][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 4.584724][ T1] NetLabel: unlabeled traffic allowed by default [ 4.594642][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 4.598070][ T1] NET: Registered PF_NFC protocol family [ 4.601391][ T1] PCI: Using ACPI for IRQ routing [ 4.604205][ T1] e820: register RAM buffer resource [mem 0x0009fc00-0x0009ffff] [ 4.607615][ T1] e820: register RAM buffer resource [mem 0xbfffd000-0xbfffffff] [ 4.612027][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 4.613983][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 4.613983][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 4.614032][ T1] vgaarb: loaded [ 4.629318][ T1] clocksource: Switched to clocksource kvm-clock [ 4.638191][ T1] VFS: Disk quotas dquot_6.6.0 [ 4.640487][ T1] VFS: Dquot-cache hash table entries: 512 (4096 bytes) [ 4.653975][ T1] netfs: FS-Cache loaded [ 4.658591][ T1] CacheFiles: Loaded [ 4.661337][ T1] TOMOYO: 2.6.0 [ 4.662844][ T1] Mandatory Access Control activated. [ 4.672298][ T1] AppArmor: AppArmor Filesystem Enabled [ 4.675691][ T1] pnp: PnP ACPI init [ 4.733788][ T1] pnp: PnP ACPI: found 6 devices [ 4.845398][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.852668][ T1] NET: Registered PF_INET protocol family [ 4.858333][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 4.883493][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 7, 294912 bytes, vmalloc) [ 4.889381][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, vmalloc) [ 4.894837][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 4.910098][ T1] TCP bind hash table entries: 65536 (order: 12, 9437184 bytes, vmalloc hugepage) [ 4.920783][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 4.927275][ T1] MPTCP token hash table entries: 8192 (order: 8, 720896 bytes, vmalloc) [ 4.933121][ T1] UDP hash table entries: 4096 (order: 8, 1048576 bytes, vmalloc) [ 4.939241][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 4.949961][ T1] RPC: Registered named UNIX socket transport module. [ 4.953080][ T1] RPC: Registered udp transport module. [ 4.955330][ T1] RPC: Registered tcp transport module. [ 4.957565][ T1] RPC: Registered tcp-with-tls transport module. [ 4.960151][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 4.977933][ T1] NET: Registered PF_XDP protocol family [ 4.980631][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 4.984432][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0x0fff window] [ 4.987515][ T1] pci_bus 0000:00: resource 6 [io 0xc000-0xffff window] [ 4.990598][ T1] pci_bus 0000:00: resource 7 [io 0xa000-0xbfff window] [ 4.994053][ T1] pci_bus 0000:00: resource 8 [mem 0x000a0000-0x000bffff window] [ 4.997276][ T1] pci_bus 0000:00: resource 9 [mem 0xc0000000-0xfebfefff window] [ 5.002436][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 5.005759][ T1] PCI: CLS 0 bytes, default 64 [ 5.010595][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 5.019001][ T1] software IO TLB: mapped [mem 0x00000000b4600000-0x00000000b8600000] (64MB) [ 5.028499][ T1] ACPI: bus type thunderbolt registered [ 5.036387][ T58] kworker/u8:3 (58) used greatest stack depth: 26648 bytes left [ 5.041799][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 5.077139][ T1] kvm_amd: CPU 1 isn't AMD or Hygon [ 5.080392][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns [ 5.085447][ T1] clocksource: Switched to clocksource tsc [ 5.139860][ T1] Initialise system trusted keyrings [ 5.145289][ T1] workingset: timestamp_bits=40 (anon: 35) max_order=21 bucket_order=0 (anon: 0) [ 5.163448][ T1] DLM installed [ 5.182365][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 5.196129][ T1] NFS: Registering the id_resolver key type [ 5.199993][ T1] Key type id_resolver registered [ 5.203040][ T1] Key type id_legacy registered [ 5.205469][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 5.209218][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 5.217498][ T1] smbdirect: subsystem loading... [ 5.230920][ T1] smbdirect: subsystem loaded [ 5.259154][ T1] Key type cifs.spnego registered [ 5.261657][ T1] Key type cifs.idmap registered [ 5.272748][ T1] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 5.279247][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 5.285613][ T1] QNX4 filesystem 0.2.3 registered. [ 5.291457][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 5.299091][ T1] fuse: init (API version 7.45) [ 5.311211][ T1] orangefs_debugfs_init: called with debug mask: :none: :0: [ 5.321062][ T1] orangefs_init: module version upstream loaded [ 5.329119][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 5.352204][ T1] SGI XFS with ACLs, security attributes, realtime, scrub, repair, quota, no debug enabled [ 5.373700][ T1] 9p: Installing v9fs 9p2000 file system support [ 5.381090][ T1] NILFS version 2 loaded [ 5.385462][ T1] befs: version: 0.9.3 [ 5.391542][ T1] ocfs2: Registered cluster interface o2cb [ 5.399393][ T1] ocfs2: Registered cluster interface user [ 5.407534][ T1] OCFS2 User DLM kernel interface loaded [ 5.444724][ T1] gfs2: GFS2 installed [ 5.469733][ T1] ceph: loaded (mds proto 32) [ 5.489177][ T1] cryptd: max_cpu_qlen set to 1000 [ 5.536286][ T1] NET: Registered PF_ALG protocol family [ 5.542450][ T1] async_tx: api initialized (async) [ 5.547808][ T1] Key type asymmetric registered [ 5.552992][ T1] Asymmetric key parser 'x509' registered [ 5.559134][ T1] Asymmetric key parser 'pkcs8' registered [ 5.564987][ T1] Key type pkcs7_test registered [ 5.571757][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 240) [ 5.583036][ T1] io scheduler mq-deadline registered [ 5.588536][ T1] io scheduler kyber registered [ 5.595040][ T1] io scheduler bfq registered [ 5.628410][ T1] input: Power Button as /devices/platform/LNXPWRBN:00/input/input0 [ 5.639984][ T1] ACPI: button: Power Button [PWRF] [ 5.650111][ T1] input: Sleep Button as /devices/platform/LNXSLPBN:00/input/input1 [ 5.663568][ T1] ACPI: button: Sleep Button [SLPF] [ 5.693071][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 5.742046][ T9] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 5.747947][ T9] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 5.794089][ T9] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 5.800038][ T9] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 5.846039][ T9] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 5.851964][ T9] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 5.890069][ T9] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 6.739342][ T1] N_HDLC line discipline registered with maxframe=4096 [ 6.748497][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 6.767731][ T1] 00:02: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 6.802275][ T1] 00:03: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 6.833579][ T1] 00:04: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 6.863920][ T1] 00:05: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 6.914953][ T1] Non-volatile memory driver v1.3 [ 6.957630][ T1] usbcore: registered new interface driver xillyusb [ 6.965948][ T1] ACPI: bus type drm_connector registered [ 6.986094][ T1] [drm] Initialized vgem 1.0.0 for vgem on minor 0 [ 7.000551][ T1] ------------[ cut here ]------------ [ 7.006704][ T1] [PLANE:35:plane-0] pixel format with alpha exposed but blend mode not setup [ 7.006739][ T1] WARNING: drivers/gpu/drm/drm_mode_config.c:873 at drm_mode_config_validate+0x1c6a/0x1e60, CPU#0: swapper/0/1 [ 7.028451][ T1] Modules linked in: [ 7.032469][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 7.041881][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 7.052529][ T1] RIP: 0010:drm_mode_config_validate+0x1cab/0x1e60 [ 7.059143][ T1] Code: 0f 85 ae 00 00 00 4d 8d 77 10 8b 6d 00 4c 89 f0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 f7 e8 bd 24 bc fc 49 8b 16 4c 89 ef 89 ee <67> 48 0f b9 3a eb 05 e8 19 c0 50 fc 49 bd 00 00 00 00 00 fc ff df [ 7.080426][ T1] RSP: 0000:ffffc90000067830 EFLAGS: 00010246 [ 7.087096][ T1] RAX: 1ffff110049e4e08 RBX: dffffc0000000000 RCX: ffff88801ea4dd00 [ 7.095276][ T1] RDX: ffff888024c0bc00 RSI: 0000000000000023 RDI: ffffffff8fcd8640 [ 7.103673][ T1] RBP: 0000000000000023 R08: ffff88802324b54b R09: 1ffff110046496a9 [ 7.112026][ T1] R10: dffffc0000000000 R11: ffffed10046496aa R12: dffffc0000000000 [ 7.120091][ T1] R13: ffffffff8fcd8640 R14: ffff888024f27040 R15: ffff888024f27030 [ 7.128514][ T1] FS: 0000000000000000(0000) GS:ffff8881259c4000(0000) knlGS:0000000000000000 [ 7.137739][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.144359][ T1] CR2: ffff88823ffff000 CR3: 000000000e13c000 CR4: 00000000003526f0 [ 7.152491][ T1] Call Trace: [ 7.155825][ T1] [ 7.158864][ T1] ? debugfs_create_file_full+0x3f/0x60 [ 7.164733][ T1] drm_dev_register+0x7c/0xd70 [ 7.169697][ T1] vkms_create+0x40d/0x4f0 [ 7.174266][ T1] vkms_init+0x57/0x80 [ 7.178527][ T1] ? __pfx_vkms_init+0x10/0x10 [ 7.183367][ T1] do_one_initcall+0x247/0x7e0 [ 7.188314][ T1] ? __pfx_vkms_init+0x10/0x10 [ 7.193496][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 7.199250][ T1] ? __pfx___schedule+0x10/0x10 [ 7.204251][ T1] ? __pfx___schedule+0x10/0x10 [ 7.209414][ T1] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 7.215652][ T1] ? stack_depot_save_flags+0x400/0x7e0 [ 7.221793][ T1] ? rcu_is_watching+0x16/0xb0 [ 7.227143][ T1] ? trace_irq_disable+0x3b/0x130 [ 7.232378][ T1] ? preempt_schedule_irq+0x64/0x90 [ 7.237851][ T1] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 7.244076][ T1] ? lockdep_hardirqs_on+0x7b/0x110 [ 7.249759][ T1] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 7.256517][ T1] ? next_arg+0x4a0/0x5e0 [ 7.260934][ T1] ? skip_spaces+0x8a/0xa0 [ 7.265549][ T1] ? parse_args+0xac5/0xbe0 [ 7.270324][ T1] ? __pfx_parse_args+0x10/0x10 [ 7.275579][ T1] ? rcu_is_watching+0x16/0xb0 [ 7.280436][ T1] do_initcall_level+0x10a/0x1a0 [ 7.285580][ T1] ? kernel_init+0x22/0x1d0 [ 7.290259][ T1] do_initcalls+0x3e/0x70 [ 7.294778][ T1] kernel_init_freeable+0x29d/0x3e0 [ 7.300355][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.305773][ T1] kernel_init+0x22/0x1d0 [ 7.310288][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.315632][ T1] ret_from_fork+0x510/0xb60 [ 7.320396][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 7.325579][ T1] ? __switch_to+0xc56/0x13f0 [ 7.330346][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.335327][ T1] ret_from_fork_asm+0x1a/0x30 [ 7.340317][ T1] [ 7.343389][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 7.350258][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 7.350258][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 7.350258][ T1] Call Trace: [ 7.350258][ T1] [ 7.350258][ T1] vpanic+0x56d/0xa60 [ 7.350258][ T1] ? __pfx__printk+0x10/0x10 [ 7.350258][ T1] ? __pfx_vpanic+0x10/0x10 [ 7.350258][ T1] ? is_bpf_text_address+0x292/0x2b0 [ 7.350258][ T1] ? is_bpf_text_address+0x26/0x2b0 [ 7.350258][ T1] panic+0xc5/0xd0 [ 7.350258][ T1] ? __pfx_panic+0x10/0x10 [ 7.350258][ T1] ? ret_from_fork_asm+0x1a/0x30 [ 7.350258][ T1] __warn+0x310/0x4c0 [ 7.350258][ T1] ? drm_mode_config_validate+0x1c6a/0x1e60 [ 7.350258][ T1] ? drm_mode_config_validate+0x1c6a/0x1e60 [ 7.350258][ T1] __report_bug+0x276/0x570 [ 7.350258][ T1] ? look_up_lock_class+0x57/0x110 [ 7.350258][ T1] ? drm_mode_config_validate+0x1c6a/0x1e60 [ 7.350258][ T1] ? __pfx___report_bug+0x10/0x10 [ 7.447395][ T1] ? __pfx_inode_set_ctime_to_ts+0x10/0x10 [ 7.447395][ T1] ? seqcount_lockdep_reader_access+0xeb/0x100 [ 7.447395][ T1] ? ktime_get_coarse_real_ts64_mg+0x1be/0x1e0 [ 7.447395][ T1] report_bug_entry+0x19b/0x290 [ 7.447395][ T1] ? drm_mode_config_validate+0x1cab/0x1e60 [ 7.447395][ T1] ? drm_mode_config_validate+0x1cb0/0x1e60 [ 7.447395][ T1] handle_bug+0x10c/0x230 [ 7.447395][ T1] exc_invalid_op+0x1a/0x50 [ 7.447395][ T1] asm_exc_invalid_op+0x1a/0x20 [ 7.447395][ T1] RIP: 0010:drm_mode_config_validate+0x1cab/0x1e60 [ 7.447395][ T1] Code: 0f 85 ae 00 00 00 4d 8d 77 10 8b 6d 00 4c 89 f0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 f7 e8 bd 24 bc fc 49 8b 16 4c 89 ef 89 ee <67> 48 0f b9 3a eb 05 e8 19 c0 50 fc 49 bd 00 00 00 00 00 fc ff df [ 7.447395][ T1] RSP: 0000:ffffc90000067830 EFLAGS: 00010246 [ 7.447395][ T1] RAX: 1ffff110049e4e08 RBX: dffffc0000000000 RCX: ffff88801ea4dd00 [ 7.447395][ T1] RDX: ffff888024c0bc00 RSI: 0000000000000023 RDI: ffffffff8fcd8640 [ 7.547505][ T1] RBP: 0000000000000023 R08: ffff88802324b54b R09: 1ffff110046496a9 [ 7.547505][ T1] R10: dffffc0000000000 R11: ffffed10046496aa R12: dffffc0000000000 [ 7.547505][ T1] R13: ffffffff8fcd8640 R14: ffff888024f27040 R15: ffff888024f27030 [ 7.547505][ T1] ? debugfs_create_file_full+0x3f/0x60 [ 7.547505][ T1] drm_dev_register+0x7c/0xd70 [ 7.547505][ T1] vkms_create+0x40d/0x4f0 [ 7.547505][ T1] vkms_init+0x57/0x80 [ 7.547505][ T1] ? __pfx_vkms_init+0x10/0x10 [ 7.547505][ T1] do_one_initcall+0x247/0x7e0 [ 7.547505][ T1] ? __pfx_vkms_init+0x10/0x10 [ 7.547505][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 7.547505][ T1] ? __pfx___schedule+0x10/0x10 [ 7.547505][ T1] ? __pfx___schedule+0x10/0x10 [ 7.547505][ T1] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 7.547505][ T1] ? stack_depot_save_flags+0x400/0x7e0 [ 7.547505][ T1] ? rcu_is_watching+0x16/0xb0 [ 7.547505][ T1] ? trace_irq_disable+0x3b/0x130 [ 7.647750][ T1] ? preempt_schedule_irq+0x64/0x90 [ 7.647750][ T1] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 7.647750][ T1] ? lockdep_hardirqs_on+0x7b/0x110 [ 7.647750][ T1] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 7.647750][ T1] ? next_arg+0x4a0/0x5e0 [ 7.647750][ T1] ? skip_spaces+0x8a/0xa0 [ 7.647750][ T1] ? parse_args+0xac5/0xbe0 [ 7.647750][ T1] ? __pfx_parse_args+0x10/0x10 [ 7.647750][ T1] ? rcu_is_watching+0x16/0xb0 [ 7.647750][ T1] do_initcall_level+0x10a/0x1a0 [ 7.647750][ T1] ? kernel_init+0x22/0x1d0 [ 7.647750][ T1] do_initcalls+0x3e/0x70 [ 7.647750][ T1] kernel_init_freeable+0x29d/0x3e0 [ 7.647750][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.647750][ T1] kernel_init+0x22/0x1d0 [ 7.647750][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.647750][ T1] ret_from_fork+0x510/0xb60 [ 7.647750][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 7.647750][ T1] ? __switch_to+0xc56/0x13f0 [ 7.747471][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.747471][ T1] ret_from_fork_asm+0x1a/0x30 [ 7.747471][ T1] [ 7.747471][ T1] Kernel Offset: disabled [ 7.747471][ T1] Rebooting in 86400 seconds.. 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-build3706553724=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs-2/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 1e72964b0 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=1e72964b0111319984575e60f266d1fa0a98abb5 -X github.com/google/syzkaller/prog.gitRevisionDate=20260817-123423" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=1e72964b0111319984575e60f266d1fa0a98abb5 -X github.com/google/syzkaller/prog.gitRevisionDate=20260817-123423" ./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=1e72964b0111319984575e60f266d1fa0a98abb5 -X github.com/google/syzkaller/prog.gitRevisionDate=20260817-123423" -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=\"1e72964b0111319984575e60f266d1fa0a98abb5\" /usr/bin/ld: /tmp/cc8ztf1P.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