WARNING in wq_update_node_max_active Initmem setup node 0 [mem 0x0000000000001000-0x000000013fffffff] Initmem setup node 1 [mem 0x0000000140000000-0x000000023fffffff] On node 0, zone DMA: 1 pages in unavailable ranges On node 0, zone DMA: 97 pages in unavailable ranges On node 0, zone Normal: 3 pages in unavailable ranges kasan: KernelAddressSanitizer initialized ACPI: PM-Timer IO Port: 0xb008 ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) ACPI: Using ACPI (MADT) for SMP configuration information smpboot: Allowing 2 CPUs, 0 hotplug CPUs PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [mem 0xc0000000-0xfffbbfff] available for PCI devices Booting paravirtualized kernel on KVM clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2 percpu: Embedded 72 pages/cpu s256200 r8192 d30520 u1048576 kvm-guest: PV spinlocks enabled PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) 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=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 smp.csd_lock_timeout=100000 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 dummy_hcd.num=8 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space. random: crng init done Fallback order for Node 0: 0 1 Fallback order for Node 1: 1 0 Built 2 zonelists, mobility grouping on. Total pages: 2064125 Policy zone: Normal mem auto-init: stack:all(zero), heap alloc:on, heap free:off stackdepot: allocating hash table via alloc_large_system_hash stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear) software IO TLB: area num 2. Memory: 6760000K/8388204K available (163840K kernel code, 38693K rwdata, 36340K rodata, 25556K init, 33780K bss, 1627948K reserved, 0K cma-reserved) SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 allocated 167772160 bytes of page_ext Node 0, zone DMA: page owner found early allocated 0 pages Node 0, zone DMA32: page owner found early allocated 20599 pages Node 0, zone Normal: page owner found early allocated 0 pages Node 1, zone Normal: page owner found early allocated 20484 pages Kernel/User page tables isolation: enabled Dynamic Preempt: full ------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at include/linux/cpumask.h:143 cpu_max_bits_warn include/linux/cpumask.h:143 [inline] WARNING: CPU: 0 PID: 0 at include/linux/cpumask.h:143 cpumask_check include/linux/cpumask.h:150 [inline] WARNING: CPU: 0 PID: 0 at include/linux/cpumask.h:143 cpumask_test_cpu include/linux/cpumask.h:516 [inline] WARNING: CPU: 0 PID: 0 at include/linux/cpumask.h:143 wq_update_node_max_active+0x636/0x780 kernel/workqueue.c:1513 Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.8.0-rc2-next-20240131-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:cpu_max_bits_warn include/linux/cpumask.h:143 [inline] RIP: 0010:cpumask_check include/linux/cpumask.h:150 [inline] RIP: 0010:cpumask_test_cpu include/linux/cpumask.h:516 [inline] RIP: 0010:wq_update_node_max_active+0x636/0x780 kernel/workqueue.c:1513 Code: 47 64 09 31 ff 89 c3 89 c6 e8 46 65 34 00 85 db 0f 85 0d fb ff ff e8 59 6a 34 00 90 0f 0b 90 e9 ff fa ff ff e8 4b 6a 34 00 90 <0f> 0b 90 e9 1c fb ff ff 48 89 df e8 fa f8 8e 00 e9 48 fd ff ff 48 RSP: 0000:ffffffff8d407c08 EFLAGS: 00010093 RAX: 0000000000000000 RBX: 00000000ffffffff RCX: ffffffff8157f961 RDX: ffffffff8d495a40 RSI: ffffffff8157fe45 RDI: 0000000000000005 RBP: ffff888014c91da0 R08: 0000000000000005 R09: 0000000000000007 R10: 00000000ffffffff R11: 0000000000000001 R12: ffff888014c99000 R13: 0000000000000200 R14: ffff888014c91db0 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88823ffff000 CR3: 000000000d57a000 CR4: 00000000000000b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: apply_wqattrs_commit+0x430/0x590 kernel/workqueue.c:4844 apply_workqueue_attrs_locked+0xf3/0x160 kernel/workqueue.c:4871 apply_workqueue_attrs kernel/workqueue.c:4902 [inline] alloc_and_link_pwqs kernel/workqueue.c:5023 [inline] alloc_workqueue+0x1256/0x1a90 kernel/workqueue.c:5232 workqueue_init_early+0xcb4/0x1080 kernel/workqueue.c:7218 start_kernel+0x199/0x480 init/main.c:958 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:555 x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:536 secondary_startup_64_no_verify+0x170/0x17b failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "root@10.128.1.175" "pwd"]: exit status 255 ssh: connect to host 10.128.1.175 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' (RSA) 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 85c153cd-840f-ebac-6288-906c82bab796 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 0x000f2830: 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 6.8.0-rc2-next-20240131-syzkaller (syzkaller@syzkaller) (gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #0 SMP PREEMPT_DYNAMIC now [ 0.000000][ T0] Command line: 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] BIOS-provided physical RAM map: [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000023fffffff] usable [ 0.000000][ T0] printk: legacy bootconsole [earlyser0] enabled [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ********************************************************** [ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** This system shows unhashed kernel memory addresses ** [ 0.000000][ T0] ** via the console, logs, and other interfaces. This ** [ 0.000000][ T0] ** might reduce the security of your system. ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** If you see this message and you are not debugging ** [ 0.000000][ T0] ** the kernel, report this immediately to your system ** [ 0.000000][ T0] ** administrator! ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000][ T0] ********************************************************** [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] nopcid: PCID feature disabled [ 0.000000][ T0] NX (Execute Disable) protection: active [ 0.000000][ T0] APIC: Static calls initialized [ 0.000000][ T0] SMBIOS 2.4 present. [ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000007][ T0] kvm-clock: using sched offset of 4494189698 cycles [ 0.000870][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.004672][ T0] tsc: Detected 2200.230 MHz processor [ 0.012167][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.013369][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs [ 0.015024][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.016861][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.024433][ T0] found SMP MP-table at [mem 0x000f2af0-0x000f2aff] [ 0.026421][ T0] Using GB pages for direct mapping [ 0.031403][ T0] ACPI: Early table checksum verification disabled [ 0.032390][ T0] ACPI: RSDP 0x00000000000F2870 000014 (v00 Google) [ 0.033957][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.036422][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.038847][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.040421][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.042168][ T0] ACPI: FACS 0x00000000BFFFD880 000040 [ 0.043628][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.045936][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.047484][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.049105][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.050753][ T0serialport: Connected to syzkaller.us-central1-c.ci-upstream-linux-next-kasan-gce-root-test-job-0 port 1 (session ID: d2d2f34184b768cf2a49c36f0a633b20dfe7ba9307e1941e2e8cf57731377dc1, active connections: 1). ] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423] [ 0.051986][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323] [ 0.053138][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.054175][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf] [ 0.056165][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27] [ 0.057289][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25] [ 0.058755][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf] [ 0.059926][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57] [ 0.061868][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.062647][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.063616][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.064973][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.065862][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.066894][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.068503][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.070198][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000013fffffff] (5120MB) [ 0.071486][ T0] Faking node 1 at [mem 0x0000000140000000-0x000000023fffffff] (4096MB) [ 0.073195][ T0] NODE_DATA(0) allocated [mem 0x13fffa000-0x13fffffff] [ 0.074934][ T0] NODE_DATA(1) allocated [mem 0x23fff7000-0x23fffcfff] [ 0.142091][ T0] Zone ranges: [ 0.142714][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.143847][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.144880][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.145879][ T0] Device empty [ 0.146641][ T0] Movable zone start for each node [ 0.147375][ T0] Early memory node ranges [ 0.149068][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.150247][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.152054][ T0] node 0: [mem 0x0000000100000000-0x000000013fffffff] [ 0.153562][ T0] node 1: [mem 0x0000000140000000-0x000000023fffffff] [ 0.155009][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000013fffffff] [ 0.156911][ T0] Initmem setup node 1 [mem 0x0000000140000000-0x000000023fffffff] [ 0.158513][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.160407][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.235003][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.840613][ T0] kasan: KernelAddressSanitizer initialized [ 0.842327][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.843603][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.844604][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.845683][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.846670][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.847671][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.849098][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.851046][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.852286][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.853273][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.854762][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.856472][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.857864][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.859122][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.860854][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.862129][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.863376][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.864497][ T0] Booting paravirtualized kernel on KVM [ 0.865373][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.133895][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2 [ 1.136588][ T0] percpu: Embedded 72 pages/cpu s256200 r8192 d30520 u1048576 [ 1.138183][ T0] kvm-guest: PV spinlocks enabled [ 1.138873][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 1.140086][ 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=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 smp.csd_lock_timeout=100000 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 dummy_hcd.num=8 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 1.161847][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space. [ 1.164623][ T0] random: crng init done [ 1.165591][ T0] Fallback order for Node 0: 0 1 [ 1.165613][ T0] Fallback order for Node 1: 1 0 [ 1.165629][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2064125 [ 1.169218][ T0] Policy zone: Normal [ 1.171067][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off [ 1.172415][ T0] stackdepot: allocating hash table via alloc_large_system_hash [ 1.174386][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear) [ 1.184215][ T0] software IO TLB: area num 2. [ 2.504058][ T0] Memory: 6760000K/8388204K available (163840K kernel code, 38693K rwdata, 36340K rodata, 25556K init, 33780K bss, 1627948K reserved, 0K cma-reserved) [ 2.509620][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 2.698753][ T0] allocated 167772160 bytes of page_ext [ 2.700170][ T0] Node 0, zone DMA: page owner found early allocated 0 pages [ 2.720639][ T0] Node 0, zone DMA32: page owner found early allocated 20599 pages [ 2.736285][ T0] Node 0, zone Normal: page owner found early allocated 0 pages [ 2.751140][ T0] Node 1, zone Normal: page owner found early allocated 20484 pages [ 2.753392][ T0] Kernel/User page tables isolation: enabled [ 2.756347][ T0] Dynamic Preempt: full [ 2.758740][ T0] ------------[ cut here ]------------ [ 2.759915][ T0] WARNING: CPU: 0 PID: 0 at include/linux/cpumask.h:143 wq_update_node_max_active+0x636/0x780 [ 2.761834][ T0] Modules linked in: [ 2.762705][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.8.0-rc2-next-20240131-syzkaller #0 [ 2.763965][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 2.765956][ T0] RIP: 0010:wq_update_node_max_active+0x636/0x780 [ 2.767225][ T0] Code: 47 64 09 31 ff 89 c3 89 c6 e8 46 65 34 00 85 db 0f 85 0d fb ff ff e8 59 6a 34 00 90 0f 0b 90 e9 ff fa ff ff e8 4b 6a 34 00 90 <0f> 0b 90 e9 1c fb ff ff 48 89 df e8 fa f8 8e 00 e9 48 fd ff ff 48 [ 2.771091][ T0] RSP: 0000:ffffffff8d407c08 EFLAGS: 00010093 [ 2.772818][ T0] RAX: 0000000000000000 RBX: 00000000ffffffff RCX: ffffffff8157f961 [ 2.774878][ T0] RDX: ffffffff8d495a40 RSI: ffffffff8157fe45 RDI: 0000000000000005 [ 2.776111][ T0] RBP: ffff888014c91da0 R08: 0000000000000005 R09: 0000000000000007 [ 2.777174][ T0] R10: 00000000ffffffff R11: 0000000000000001 R12: ffff888014c99000 [ 2.778248][ T0] R13: 0000000000000200 R14: ffff888014c91db0 R15: 0000000000000002 [ 2.779399][ T0] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 2.781380][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.783151][ T0] CR2: ffff88823ffff000 CR3: 000000000d57a000 CR4: 00000000000000b0 [ 2.784204][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2.785251][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 2.787403][ T0] Call Trace: [ 2.787922][ T0] [ 2.788339][ T0] ? show_regs+0x8e/0xa0 [ 2.788956][ T0] ? __warn+0xe5/0x390 [ 2.790786][ T0] ? wq_update_node_max_active+0x636/0x780 [ 2.792259][ T0] ? report_bug+0x3c0/0x580 [ 2.793021][ T0] ? handle_bug+0x3d/0x70 [ 2.793694][ T0] ? exc_invalid_op+0x17/0x50 [ 2.794332][ T0] ? asm_exc_invalid_op+0x1a/0x20 [ 2.795217][ T0] ? wq_update_node_max_active+0x151/0x780 [ 2.796096][ T0] ? wq_update_node_max_active+0x635/0x780 [ 2.797090][ T0] ? wq_update_node_max_active+0x636/0x780 [ 2.798048][ T0] ? wq_update_node_max_active+0x635/0x780 [ 2.798836][ T0] ? link_pwq+0x18b/0x290 [ 2.799443][ T0] apply_wqattrs_commit+0x430/0x590 [ 2.800154][ T0] apply_workqueue_attrs_locked+0xf3/0x160 [ 2.800926][ T0] alloc_workqueue+0x1256/0x1a90 [ 2.801592][ T0] ? __pfx_alloc_workqueue+0x10/0x10 [ 2.802501][ T0] workqueue_init_early+0xcb4/0x1080 [ 2.805223][ T0] ? __pfx_workqueue_init_early+0x10/0x10 [ 2.807593][ T0] ? __cpuhp_setup_state+0x180/0x300 [ 2.808355][ T0] start_kernel+0x199/0x480 [ 2.809296][ T0] x86_64_start_reservations+0x18/0x30 [ 2.810217][ T0] x86_64_start_kernel+0xb2/0xc0 [ 2.811128][ T0] secondary_startup_64_no_verify+0x170/0x17b [ 2.812076][ T0] [ 2.812734][ T0] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 2.813717][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.8.0-rc2-next-20240131-syzkaller #0 [ 2.815204][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 2.816992][ T0] Call Trace: [ 2.817627][ T0] [ 2.818103][ T0] dump_stack_lvl+0xd9/0x1b0 [ 2.818752][ T0] panic+0x6ee/0x7a0 [ 2.819282][ T0] ? __pfx_panic+0x10/0x10 [ 2.819870][ T0] ? show_trace_log_lvl+0x363/0x500 [ 2.820682][ T0] ? check_panic_on_warn+0x1f/0xb0 [ 2.821451][ T0] ? wq_update_node_max_active+0x636/0x780 [ 2.822742][ T0] check_panic_on_warn+0xab/0xb0 [ 2.823473][ T0] __warn+0xf1/0x390 [ 2.824059][ T0] ? wq_update_node_max_active+0x636/0x780 [ 2.825168][ T0] report_bug+0x3c0/0x580 [ 2.825761][ T0] handle_bug+0x3d/0x70 [ 2.826628][ T0] exc_invalid_op+0x17/0x50 [ 2.827225][ T0] asm_exc_invalid_op+0x1a/0x20 [ 2.827947][ T0] RIP: 0010:wq_update_node_max_active+0x636/0x780 [ 2.828983][ T0] Code: 47 64 09 31 ff 89 c3 89 c6 e8 46 65 34 00 85 db 0f 85 0d fb ff ff e8 59 6a 34 00 90 0f 0b 90 e9 ff fa ff ff e8 4b 6a 34 00 90 <0f> 0b 90 e9 1c fb ff ff 48 89 df e8 fa f8 8e 00 e9 48 fd ff ff 48 [ 2.832103][ T0] RSP: 0000:ffffffff8d407c08 EFLAGS: 00010093 [ 2.832941][ T0] RAX: 0000000000000000 RBX: 00000000ffffffff RCX: ffffffff8157f961 [ 2.834375][ T0] RDX: ffffffff8d495a40 RSI: ffffffff8157fe45 RDI: 0000000000000005 [ 2.835799][ T0] RBP: ffff888014c91da0 R08: 0000000000000005 R09: 0000000000000007 [ 2.837602][ T0] R10: 00000000ffffffff R11: 0000000000000001 R12: ffff888014c99000 [ 2.839050][ T0] R13: 0000000000000200 R14: ffff888014c91db0 R15: 0000000000000002 [ 2.840234][ T0] ? wq_update_node_max_active+0x151/0x780 [ 2.841069][ T0] ? wq_update_node_max_active+0x635/0x780 [ 2.841903][ T0] ? wq_update_node_max_active+0x635/0x780 [ 2.842710][ T0] ? link_pwq+0x18b/0x290 [ 2.843309][ T0] apply_wqattrs_commit+0x430/0x590 [ 2.843993][ T0] apply_workqueue_attrs_locked+0xf3/0x160 [ 2.844759][ T0] alloc_workqueue+0x1256/0x1a90 [ 2.845781][ T0] ? __pfx_alloc_workqueue+0x10/0x10 [ 2.846693][ T0] workqueue_init_early+0xcb4/0x1080 [ 2.847469][ T0] ? __pfx_workqueue_init_early+0x10/0x10 [ 2.848295][ T0] ? __cpuhp_setup_state+0x180/0x300 [ 2.849170][ T0] start_kernel+0x199/0x480 [ 2.849862][ T0] x86_64_start_reservations+0x18/0x30 [ 2.850612][ T0] x86_64_start_kernel+0xb2/0xc0 [ 2.851293][ T0] secondary_startup_64_no_verify+0x170/0x17b [ 2.852431][ T0] [ 2.853064][ T0] Rebooting in 86400 seconds.. syzkaller build log: go env (err=) GO111MODULE='auto' GOARCH='amd64' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFLAGS='' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.21.4' GCCGO='gccgo' GOAMD64='v1' AR='ar' CC='gcc' CXX='g++' CGO_ENABLED='1' GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod' GOWORK='' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' PKG_CONFIG='pkg-config' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build405207642=/tmp/go-build -gno-record-gcc-switches' git status (err=) HEAD detached at 03d9c195d 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:32: run command via tools/syz-env for best compatibility, see: Makefile:33: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=03d9c195daed8fca30b642783f35657aa7e32209 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230825-085153'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=03d9c195daed8fca30b642783f35657aa7e32209 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230825-085153'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=03d9c195daed8fca30b642783f35657aa7e32209 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230825-085153'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress mkdir -p ./bin/linux_amd64 gcc -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 -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"03d9c195daed8fca30b642783f35657aa7e32209\"