[ 0.000000][ T0] Linux version 5.7.0-rc1-syzkaller (syzkaller@syzkaller) (gcc version 9.0.0 20181231 (experimental) (GCC), GNU ld (GNU Binutils for Debian) 2.28) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 security=selinux lsm=lockdown,yama,safesetid,integrity,selinux,tomoyo ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 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 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 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] Centaur CentaurHauls [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x020: 'AVX-512 opmask' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x040: 'AVX-512 Hi256' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x080: 'AVX-512 ZMM_Hi256' [ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000][ T0] x86/fpu: xstate_offset[5]: 1088, xstate_sizes[5]: 64 [ 0.000000][ T0] x86/fpu: xstate_offset[6]: 1152, xstate_sizes[6]: 512 [ 0.000000][ T0] x86/fpu: xstate_offset[7]: 1664, xstate_sizes[7]: 1024 [ 0.000000][ T0] x86/fpu: Enabled xstate features 0xe7, context size is 2688 bytes, using 'standard' format. [ 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 0x0000000000100000-0x000000007ffdcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000007ffdd000-0x000000007fffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000b0000000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled [ 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] SMBIOS 2.8 present. [ 0.000000][ T0] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000037][ T0] kvm-clock: cpu 0, msr bbc5001, primary cpu clock [ 0.000037][ T0] kvm-clock: using sched offset of 23349816704 cycles [ 0.014300][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.054042][ T0] tsc: Detected 2000.196 MHz processor [ 0.086593][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.106715][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.139071][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.172371][ T0] check: Scanning 1 areas for low memory corruption [ 0.207444][ T0] ACPI: Early table checksum verification disabled [ 0.232395][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.251091][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.271532][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.298534][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.321326][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.335729][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.365047][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.392185][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.436378][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.474654][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.521077][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.578379][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.605507][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.631150][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.648921][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.674948][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.696011][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.711574][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 0.727396][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 0.741977][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.765809][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 0.793103][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 0.817595][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 0.842670][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 0.877749][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.903394][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.942674][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.982369][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 1.172184][ T0] Zone ranges: [ 1.184694][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.207070][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 1.227158][ T0] Normal empty [ 1.241001][ T0] Device empty [ 1.253961][ T0] Movable zone start for each node [ 1.271976][ T0] Early memory node ranges [ 1.285434][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.310238][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 1.330927][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.352540][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 1.352564][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 1.411553][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 4.408793][ T0] kasan: KernelAddressSanitizer initialized [ 4.437581][ T0] ACPI: PM-Timer IO Port: 0x608 [ 4.452631][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 4.471041][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 4.487084][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 4.507433][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 4.526314][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 4.547067][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 4.571386][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 4.595886][ T0] Using ACPI (MADT) for SMP configuration information [ 4.621310][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 4.639245][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 4.661855][ T0] KVM setup pv remote TLB flush [ 4.682937][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 4.709918][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 4.732971][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 4.755599][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 4.777653][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 4.797774][ T0] Booting paravirtualized kernel on KVM [ 4.816439][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 4.985065][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 5.097526][ T0] percpu: Embedded 67 pages/cpu s233672 r8192 d32568 u1048576 [ 5.136064][ T0] KVM setup async PF for cpu 0 [ 5.162563][ T0] kvm-stealtime: cpu 0, msr 2ce22a40 [ 5.186159][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 5.232554][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 5.269206][ T0] Policy zone: DMA32 [ 5.286817][ T0] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 security=selinux lsm=lockdown,yama,safesetid,integrity,selinux,tomoyo ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 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 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 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 [ 5.694935][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 6.418364][ T0] Memory: 1505660K/2096620K available (114695K kernel code, 17108K rwdata, 21364K rodata, 2768K init, 24996K bss, 590960K reserved, 0K cma-reserved) [ 6.577255][ T0] Running RCU self tests [ 6.593066][ T0] rcu: Preemptible hierarchical RCU implementation. [ 6.614826][ T0] rcu: RCU lockdep checking is enabled. [ 6.632153][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 6.652568][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 6.677501][ T0] Tasks RCU enabled. [ 6.692623][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 6.720953][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 6.799604][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 6.864529][ T0] random: get_random_bytes called from start_kernel+0x516/0x89c with crng_init=0 [ 7.101486][ T0] Console: colour VGA+ 80x25 [ 7.152549][ T0] printk: console [ttyS0] enabled [ 7.152549][ T0] printk: console [ttyS0] enabled [ 7.187500][ T0] printk: bootconsole [earlyser0] disabled [ 7.187500][ T0] printk: bootconsole [earlyser0] disabled [ 7.224653][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 7.269661][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 7.288955][ T0] ... MAX_LOCK_DEPTH: 48 [ 7.301944][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 7.322422][ T0] ... CLASSHASH_SIZE: 4096 [ 7.346722][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 7.377002][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 7.421098][ T0] ... CHAINHASH_SIZE: 32768 [ 7.465042][ T0] memory used by lock dependency info: 6301 kB [ 7.505811][ T0] memory used for stack traces: 4224 kB [ 7.541385][ T0] per task-struct memory footprint: 1920 bytes [ 7.582894][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 7.642370][ T0] ACPI: Core revision 20200326 [ 7.725466][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 7.940508][ T0] APIC: Switch to symmetric I/O mode setup [ 8.049980][ T0] x2apic enabled [ 8.098638][ T0] Switched APIC routing to physical x2apic. [ 8.137254][ T0] KVM setup pv IPIs [ 8.355981][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 8.426916][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4e75f6d2, max_idle_ns: 440795251066 ns [ 8.542925][ T0] Calibrating delay loop (skipped) preset value.. 4000.39 BogoMIPS (lpj=20001960) [ 8.553329][ T0] pid_max: default: 32768 minimum: 301 [ 8.605059][ T0] LSM: Security Framework initializing [ 8.612873][ T0] LSM: security= is ignored because it is superseded by lsm= [ 8.634214][ T0] Yama: becoming mindful. [ 8.655048][ T0] SELinux: Initializing. [ 8.675354][ T0] TOMOYO Linux initialized [ 8.744051][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 8.781624][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 8.792190][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 8.801628][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 9.156207][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 9.195376][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 9.211214][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 9.236022][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 9.242291][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 9.243573][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 9.264706][ T0] TAA: Mitigation: Clear CPU buffers [ 9.271216][ T0] MDS: Mitigation: Clear CPU buffers [ 9.493559][ T0] Freeing SMP alternatives memory: 96K [ 10.000183][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 10.100453][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 10.136784][ T1] rcu: Hierarchical SRCU implementation. [ 10.184755][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 10.227597][ T1] smp: Bringing up secondary CPUs ... [ 10.272856][ T1] x86: Booting SMP configuration: [ 10.281389][ T1] .... node #0, CPUs: #1 [ 1.495577][ T0] kvm-clock: cpu 1, msr bbc5041, secondary cpu clock [ 10.380066][ T15] KVM setup async PF for cpu 1 [ 10.381191][ T15] kvm-stealtime: cpu 1, msr 2cf22a40 [ 10.422500][ 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. [ 10.432810][ 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. [ 10.465882][ T1] #2 [ 1.495577][ T0] kvm-clock: cpu 2, msr bbc5081, secondary cpu clock [ 10.583012][ T20] KVM setup async PF for cpu 2 [ 10.591191][ T20] kvm-stealtime: cpu 2, msr 2d022a40 [ 10.690703][ T1] #3 [ 1.495577][ T0] kvm-clock: cpu 3, msr bbc50c1, secondary cpu clock [ 10.797467][ T25] KVM setup async PF for cpu 3 [ 10.801191][ T25] kvm-stealtime: cpu 3, msr 2d122a40 [ 10.863468][ T1] smp: Brought up 2 nodes, 4 CPUs [ 10.871583][ T1] smpboot: Max logical packages: 2 [ 10.881585][ T1] smpboot: Total of 4 processors activated (16001.56 BogoMIPS) [ 10.971708][ T1] devtmpfs: initialized [ 11.006608][ T1] x86/mm: Memory block size: 128MB [ 11.149952][ T33] kworker/u17:0 (33) used greatest stack depth: 27512 bytes left [ 118.911191][ T1] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 3-... } 10780 jiffies s: 29 root: 0x8/. [ 118.951588][ T1] rcu: blocking rcu_node structures: [ 118.972469][ T1] Task dump for CPU 3: [ 118.991830][ T1] swapper/0 R running task 28176 1 0 0x80004000 [ 119.011457][ T1] Call Trace: [ 119.021191][ T1] sched_show_task.cold+0x2e2/0x343 [ 119.031191][ T1] ? can_nice.part.0+0x10/0x10 [ 119.041290][ T1] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 119.061353][ T1] rcu_exp_wait_wake.cold+0x4d2/0x7ce [ 119.071339][ T1] ? cpumask_test_cpu.constprop.0+0x40/0x40 [ 119.091357][ T1] ? sync_rcu_exp_select_cpus+0x33c/0x720 [ 119.111329][ T1] synchronize_rcu_expedited+0x51b/0x620 [ 119.141442][ T1] ? sync_rcu_exp_select_cpus+0x720/0x720 [ 119.161406][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 119.181522][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 119.221587][ T1] ? initcall_blacklisted+0x124/0x190 [ 119.241378][ T1] ? __bpf_trace_initcall_finish+0x30/0x30 [ 119.271425][ T1] ? __alloc_pages_nodemask+0x5f4/0x810 [ 119.293097][ T1] ? irq_alloc_matrix+0x191/0x191 [ 119.321481][ T1] ? synchronize_rcu.part.0+0x7c/0xf0 [ 119.341386][ T1] ? synchronize_rcu_expedited+0x620/0x620 [ 119.371388][ T1] ? irq_alloc_matrix+0x191/0x191 [ 119.391384][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 119.411328][ T1] ? alloc_pages_current+0x107/0x200 [ 119.431410][ T1] ? irq_alloc_matrix+0x191/0x191 [ 119.451406][ T1] rcu_set_runtime_mode+0xa/0x5a [ 119.471838][ T1] do_one_initcall+0x10a/0x7d0 [ 119.501515][ T1] ? perf_trace_initcall_level+0x420/0x420 [ 119.521369][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 119.541456][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 119.571362][ T1] ? kernel_init_freeable+0x3a5/0x5ae [ 119.591432][ T1] kernel_init_freeable+0x501/0x5ae [ 119.611733][ T1] ? rest_init+0x365/0x365 [ 119.631434][ T1] kernel_init+0xd/0x1bb [ 119.651434][ T1] ret_from_fork+0x24/0x30 [ 436.344319][ T1] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 3-... } 42524 jiffies s: 29 root: 0x8/. [ 436.421960][ T1] rcu: blocking rcu_node structures: [ 436.471652][ T1] Task dump for CPU 3: [ 436.501592][ T1] swapper/0 R running task 28176 1 0 0x80004000 [ 436.562273][ T1] Call Trace: [ 436.594106][ T1] sched_show_task.cold+0x2e2/0x343 [ 436.632065][ T1] ? can_nice.part.0+0x10/0x10 [ 436.661730][ T1] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 436.701973][ T1] rcu_exp_wait_wake.cold+0x4d2/0x7ce [ 436.762570][ T1] ? cpumask_test_cpu.constprop.0+0x40/0x40 [ 436.821604][ T1] ? sync_rcu_exp_select_cpus+0x33c/0x720 [ 436.851555][ T1] synchronize_rcu_expedited+0x51b/0x620 [ 436.881648][ T1] ? sync_rcu_exp_select_cpus+0x720/0x720 [ 436.921589][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 436.951500][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 436.991594][ T1] ? initcall_blacklisted+0x124/0x190 [ 437.031484][ T1] ? __bpf_trace_initcall_finish+0x30/0x30 [ 437.071629][ T1] ? __alloc_pages_nodemask+0x5f4/0x810 [ 437.102388][ T1] ? irq_alloc_matrix+0x191/0x191 [ 437.121367][ T1] ? synchronize_rcu.part.0+0x7c/0xf0 [ 437.161446][ T1] ? synchronize_rcu_expedited+0x620/0x620 [ 437.201558][ T1] ? irq_alloc_matrix+0x191/0x191 [ 437.241451][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 437.261422][ T1] ? alloc_pages_current+0x107/0x200 [ 437.291354][ T1] ? irq_alloc_matrix+0x191/0x191 [ 437.301336][ T1] rcu_set_runtime_mode+0xa/0x5a [ 437.321899][ T1] do_one_initcall+0x10a/0x7d0 [ 437.341373][ T1] ? perf_trace_initcall_level+0x420/0x420 [ 437.361485][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 437.381294][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 437.401412][ T1] ? kernel_init_freeable+0x3a5/0x5ae [ 437.421347][ T1] kernel_init_freeable+0x501/0x5ae [ 437.441917][ T1] ? rest_init+0x365/0x365 [ 437.461555][ T1] kernel_init+0xd/0x1bb [ 437.471526][ T1] ret_from_fork+0x24/0x30