WARNING in trace_event_raw_init
CPU topo: Max. threads per core: 2
CPU topo: Num. cores per package: 1
CPU topo: Num. threads per package: 2
CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs
PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff]
PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xffffffff]
[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 70 pages/cpu s245960 r8192 d32568 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=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 panic_on_warn
Unknown kernel command line parameters "spec_store_bypass_disable=prctl nbds_max=32 BOOT_IMAGE=/boot/bzImage", will be passed to user space.
random: crng init done
printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes
software IO TLB: area num 2.
Fallback order for Node 0: 0 1
Fallback order for Node 1: 1 0
Built 2 zonelists, mobility grouping on. Total pages: 2097051
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)
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 21222 pages
Node 0, zone Normal: page owner found early allocated 0 pages
Node 1, zone Normal: page owner found early allocated 19843 pages
Kernel/User page tables isolation: enabled
Dynamic Preempt: full
Running RCU self tests
Running RCU synchronous self tests
rcu: Preemptible hierarchical RCU implementation.
rcu: RCU lockdep checking is enabled.
rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.
rcu: RCU callback double-/use-after-free debug is enabled.
rcu: RCU debug extended QS entry/exit.
All grace periods are expedited (rcu_expedited).
Trampoline variant of Tasks RCU enabled.
Tracing variant of Tasks RCU enabled.
rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
Running RCU synchronous self tests
RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2.
RCU Tasks Trace: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at kernel/trace/trace_events.c:596 test_event_printk kernel/trace/trace_events.c:596 [inline]
WARNING: CPU: 0 PID: 0 at kernel/trace/trace_events.c:596 trace_event_raw_init+0xbda/0x1170 kernel/trace/trace_events.c:616
Modules linked in:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.15.0-rc3-next-20250422-syzkaller-g2c9c612abeb3 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:test_event_printk kernel/trace/trace_events.c:596 [inline]
RIP: 0010:trace_event_raw_init+0xbda/0x1170 kernel/trace/trace_events.c:616
Code: 89 d8 48 83 c4 48 5b 41 5c 41 5d 41 5e 41 5f 5d e9 1b 1e 64 0a 80 3d 0e 26 7e 0e 01 0f 85 7e 03 00 00 e8 79 50 f7 ff eb d5 90 <0f> 0b 90 4c 89 f6 48 83 e6 01 31 ff e8 45 55 f7 ff 4c 89 f3 49 83
RSP: 0000:ffffffff8ea07e30 EFLAGS: 00010002
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8ea965c0
RDX: 0000000000000000 RSI: 0000000000000020 RDI: 0000000000000000
RBP: 0000000000000020 R08: ffffffff81cbc889 R09: ffffffff8ebf6886
R10: ffffffff8ebf6886 R11: ffffffff8ebf6886 R12: 0000000000000005
R13: ffffffff8ebf67e0 R14: 0000000000000020 R15: 0000000000000028
FS: 0000000000000000(0000) GS:ffff888124f9f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88823ffff000 CR3: 000000000eb38000 CR4: 00000000000000b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
event_init kernel/trace/trace_events.c:3111 [inline]
event_trace_enable+0x1f3/0x3a0 kernel/trace/trace_events.c:4455
trace_event_init+0x13/0x20 kernel/trace/trace_events.c:4548
trace_init+0xf/0x40 kernel/trace/trace.c:11070
start_kernel+0x206/0x510 init/main.c:994
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:304
x86_64_start_kernel+0x66/0x70 arch/x86/kernel/head64.c:285
common_startup_64+0x13e/0x147
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@10.128.0.85" "pwd"]: exit status 255
ssh: connect to host 10.128.0.85 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 bc75221c-bda7-2114-023c-35d84fbe4d56
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 0x000f27f0: 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 6.15.0-rc3-next-20250422-syzkaller-g2c9c612abeb3 (syzkaller@syzkaller) (Debian clang version 15.0.6, Debian LLD 15.0.6) #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]serialport: Connected to syzkaller.us-central1-c.ci-upstream-linux-next-kasan-gce-root-test-job-parallel-0 port 1 (session ID: 7f9986a2d9954491ef316c9c37a5b39dcd4e4ca96c3e5f34ab31b8ebb265fda3, active connections: 1).
** 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 02/12/2025
[ 0.000000][ T0] DMI: Memory slots populated: 1/1
[ 0.000000][ T0] Hypervisor detected: KVM
[ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00
[ 0.000008][ T0] kvm-clock: using sched offset of 5866396046 cycles
[ 0.001704][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[ 0.005835][ T0] tsc: Detected 2199.998 MHz processor
[ 0.012050][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000
[ 0.013822][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs
[ 0.015755][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT
[ 0.018519][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000
[ 0.026109][ T0] found SMP MP-table at [mem 0x000f2ab0-0x000f2abf]
[ 0.028483][ T0] Using GB pages for direct mapping
[ 0.032761][ T0] ACPI: Early table checksum verification disabled
[ 0.034792][ T0] ACPI: RSDP 0x00000000000F2830 000014 (v00 Google)
[ 0.036760][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001)
[ 0.039989][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001)
[ 0.043359][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001)
[ 0.046739][ T0] ACPI: FACS 0x00000000BFFFD880 000040
[ 0.048533][ T0] ACPI: FACS 0x00000000BFFFD880 000040
[ 0.049693][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001)
[ 0.051322][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001)
[ 0.054148][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001)
[ 0.055757][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001)
[ 0.057650][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423]
[ 0.059762][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323]
[ 0.061829][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf]
[ 0.064087][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf]
[ 0.066620][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27]
[ 0.069248][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25]
[ 0.071041][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf]
[ 0.074189][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57]
[ 0.076556][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff]
[ 0.080508][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff]
[ 0.083639][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff]
[ 0.087100][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00001000-0xbfffffff]
[ 0.091611][ T0] NUMA: Node 0 [mem 0x00001000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00001000-0x23fffffff]
[ 0.094799][ T0] Faking node 0 at [mem 0x0000000000001000-0x0000000140000fff] (5120MB)
[ 0.096099][ T0] Faking node 1 at [mem 0x0000000140001000-0x000000023fffffff] (4095MB)
[ 0.099281][ T0] NODE_DATA(0) allocated [mem 0x13fffb400-0x140000fff]
[ 0.102807][ T0] NODE_DATA(1) allocated [mem 0x23fff7400-0x23fffcfff]
[ 0.146754][ T0] Zone ranges:
[ 0.148220][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.152744][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff]
[ 0.155765][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff]
[ 0.159837][ T0] Device empty
[ 0.160724][ T0] Movable zone start for each node
[ 0.162164][ T0] Early memory node ranges
[ 0.165433][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff]
[ 0.168229][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff]
[ 0.170470][ T0] node 0: [mem 0x0000000100000000-0x0000000140000fff]
[ 0.171581][ T0] node 1: [mem 0x0000000140001000-0x000000023fffffff]
[ 0.172768][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x0000000140000fff]
[ 0.173890][ T0] Initmem setup node 1 [mem 0x0000000140001000-0x000000023fffffff]
[ 0.176556][ T0] On node 0, zone DMA: 1 pages in unavailable ranges
[ 0.179308][ T0] On node 0, zone DMA: 97 pages in unavailable ranges
[ 0.249648][ T0] On node 0, zone Normal: 3 pages in unavailable ranges
[ 0.692033][ T0] kasan: KernelAddressSanitizer initialized
[ 0.695864][ T0] ACPI: PM-Timer IO Port: 0xb008
[ 0.698845][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.701178][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[ 0.703757][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.708488][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.712566][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.714423][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.715551][ T0] ACPI: Using ACPI (MADT) for SMP configuration information
[ 0.717745][ T0] CPU topo: Max. logical packages: 1
[ 0.719382][ T0] CPU topo: Max. logical dies: 1
[ 0.723826][ T0] CPU topo: Max. dies per package: 1
[ 0.724935][ T0] CPU topo: Max. threads per core: 2
[ 0.728854][ T0] CPU topo: Num. cores per package: 1
[ 0.730933][ T0] CPU topo: Num. threads per package: 2
[ 0.732827][ T0] CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs
[ 0.737767][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.743610][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff]
[ 0.746547][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xffffffff]
[ 0.749844][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices
[ 0.752132][ T0] Booting paravirtualized kernel on KVM
[ 0.754274][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.859150][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2
[ 0.867875][ T0] percpu: Embedded 70 pages/cpu s245960 r8192 d32568 u1048576
[ 0.872589][ T0] kvm-guest: PV spinlocks enabled
[ 0.876259][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.880508][ 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 panic_on_warn
[ 0.884755][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl nbds_max=32 BOOT_IMAGE=/boot/bzImage", will be passed to user space.
[ 0.931225][ T0] random: crng init done
[ 0.932725][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes
[ 0.936423][ T0] software IO TLB: area num 2.
[ 0.970597][ T0] Fallback order for Node 0: 0 1
[ 0.970621][ T0] Fallback order for Node 1: 1 0
[ 0.970634][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2097051
[ 0.980627][ T0] Policy zone: Normal
[ 0.984985][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off
[ 0.986851][ T0] stackdepot: allocating hash table via alloc_large_system_hash
[ 0.988118][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear)
[ 1.978537][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2
[ 2.112396][ T0] allocated 167772160 bytes of page_ext
[ 2.113578][ T0] Node 0, zone DMA: page owner found early allocated 0 pages
[ 2.134655][ T0] Node 0, zone DMA32: page owner found early allocated 21222 pages
[ 2.148019][ T0] Node 0, zone Normal: page owner found early allocated 0 pages
[ 2.167338][ T0] Node 1, zone Normal: page owner found early allocated 19843 pages
[ 2.170620][ T0] Kernel/User page tables isolation: enabled
[ 2.173276][ T0] Dynamic Preempt: full
[ 2.176979][ T0] Running RCU self tests
[ 2.178360][ T0] Running RCU synchronous self tests
[ 2.179827][ T0] rcu: Preemptible hierarchical RCU implementation.
[ 2.183016][ T0] rcu: RCU lockdep checking is enabled.
[ 2.185442][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.
[ 2.187859][ T0] rcu: RCU callback double-/use-after-free debug is enabled.
[ 2.190597][ T0] rcu: RCU debug extended QS entry/exit.
[ 2.193036][ T0] All grace periods are expedited (rcu_expedited).
[ 2.195680][ T0] Trampoline variant of Tasks RCU enabled.
[ 2.199159][ T0] Tracing variant of Tasks RCU enabled.
[ 2.201461][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 2.204217][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[ 2.206769][ T0] Running RCU synchronous self tests
[ 2.208787][ T0] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2.
[ 2.214662][ T0] RCU Tasks Trace: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2.
[ 2.218696][ T0] ------------[ cut here ]------------
[ 2.220199][ T0] WARNING: CPU: 0 PID: 0 at kernel/trace/trace_events.c:596 trace_event_raw_init+0xbda/0x1170
[ 2.221837][ T0] Modules linked in:
[ 2.222408][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.15.0-rc3-next-20250422-syzkaller-g2c9c612abeb3 #0 PREEMPT(full)
[ 2.224851][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 2.226897][ T0] RIP: 0010:trace_event_raw_init+0xbda/0x1170
[ 2.228422][ T0] Code: 89 d8 48 83 c4 48 5b 41 5c 41 5d 41 5e 41 5f 5d e9 1b 1e 64 0a 80 3d 0e 26 7e 0e 01 0f 85 7e 03 00 00 e8 79 50 f7 ff eb d5 90 <0f> 0b 90 4c 89 f6 48 83 e6 01 31 ff e8 45 55 f7 ff 4c 89 f3 49 83
[ 2.235317][ T0] RSP: 0000:ffffffff8ea07e30 EFLAGS: 00010002
[ 2.237943][ T0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8ea965c0
[ 2.239813][ T0] RDX: 0000000000000000 RSI: 0000000000000020 RDI: 0000000000000000
[ 2.241916][ T0] RBP: 0000000000000020 R08: ffffffff81cbc889 R09: ffffffff8ebf6886
[ 2.245504][ T0] R10: ffffffff8ebf6886 R11: ffffffff8ebf6886 R12: 0000000000000005
[ 2.249246][ T0] R13: ffffffff8ebf67e0 R14: 0000000000000020 R15: 0000000000000028
[ 2.251628][ T0] FS: 0000000000000000(0000) GS:ffff888124f9f000(0000) knlGS:0000000000000000
[ 2.255023][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.257457][ T0] CR2: ffff88823ffff000 CR3: 000000000eb38000 CR4: 00000000000000b0
[ 2.260646][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2.264860][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2.267705][ T0] Call Trace:
[ 2.270000][ T0]
[ 2.270999][ T0] event_trace_enable+0x1f3/0x3a0
[ 2.272347][ T0] trace_event_init+0x13/0x20
[ 2.274598][ T0] trace_init+0xf/0x40
[ 2.276185][ T0] start_kernel+0x206/0x510
[ 2.277859][ T0] x86_64_start_reservations+0x2a/0x30
[ 2.280193][ T0] x86_64_start_kernel+0x66/0x70
[ 2.281345][ T0] common_startup_64+0x13e/0x147
[ 2.282987][ T0]
[ 2.284315][ T0] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 2.287344][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.15.0-rc3-next-20250422-syzkaller-g2c9c612abeb3 #0 PREEMPT(full)
[ 2.290884][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 2.293789][ T0] Call Trace:
[ 2.294978][ T0]
[ 2.296217][ T0] dump_stack_lvl+0x241/0x360
[ 2.297615][ T0] ? __pfx_dump_stack_lvl+0x10/0x10
[ 2.299413][ T0] ? __pfx__printk+0x10/0x10
[ 2.300908][ T0] ? vscnprintf+0x5d/0x90
[ 2.302203][ T0] panic+0x349/0x880
[ 2.303790][ T0] ? __warn+0x174/0x4d0
[ 2.305465][ T0] ? __pfx_panic+0x10/0x10
[ 2.306262][ T0] ? common_startup_64+0x13e/0x147
[ 2.307417][ T0] __warn+0x344/0x4d0
[ 2.308301][ T0] ? trace_event_raw_init+0xbda/0x1170
[ 2.309609][ T0] report_bug+0x2b3/0x500
[ 2.310685][ T0] ? trace_event_raw_init+0xbda/0x1170
[ 2.312852][ T0] ? trace_event_raw_init+0xbda/0x1170
[ 2.316265][ T0] ? trace_event_raw_init+0xbdc/0x1170
[ 2.318371][ T0] handle_bug+0x89/0x170
[ 2.320094][ T0] exc_invalid_op+0x1a/0x50
[ 2.322042][ T0] asm_exc_invalid_op+0x1a/0x20
[ 2.324342][ T0] RIP: 0010:trace_event_raw_init+0xbda/0x1170
[ 2.326526][ T0] Code: 89 d8 48 83 c4 48 5b 41 5c 41 5d 41 5e 41 5f 5d e9 1b 1e 64 0a 80 3d 0e 26 7e 0e 01 0f 85 7e 03 00 00 e8 79 50 f7 ff eb d5 90 <0f> 0b 90 4c 89 f6 48 83 e6 01 31 ff e8 45 55 f7 ff 4c 89 f3 49 83
[ 2.334439][ T0] RSP: 0000:ffffffff8ea07e30 EFLAGS: 00010002
[ 2.337676][ T0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8ea965c0
[ 2.342998][ T0] RDX: 0000000000000000 RSI: 0000000000000020 RDI: 0000000000000000
[ 2.345606][ T0] RBP: 0000000000000020 R08: ffffffff81cbc889 R09: ffffffff8ebf6886
[ 2.348501][ T0] R10: ffffffff8ebf6886 R11: ffffffff8ebf6886 R12: 0000000000000005
[ 2.351119][ T0] R13: ffffffff8ebf67e0 R14: 0000000000000020 R15: 0000000000000028
[ 2.354138][ T0] ? trace_event_raw_init+0xb89/0x1170
[ 2.355781][ T0] event_trace_enable+0x1f3/0x3a0
[ 2.357987][ T0] trace_event_init+0x13/0x20
[ 2.359964][ T0] trace_init+0xf/0x40
[ 2.361131][ T0] start_kernel+0x206/0x510
[ 2.363583][ T0] x86_64_start_reservations+0x2a/0x30
[ 2.366367][ T0] x86_64_start_kernel+0x66/0x70
[ 2.368425][ T0] common_startup_64+0x13e/0x147
[ 2.370696][ T0]
[ 2.371959][ 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-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'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.22.7'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs-2/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-build1089617578=/tmp/go-build -gno-record-gcc-switches'
git status (err=)
HEAD detached at c8349e4853
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}}' ./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
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=c8349e48534ea6d8f01515335d95de8ebf5da8df -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240412-102842'" "-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=c8349e48534ea6d8f01515335d95de8ebf5da8df -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240412-102842'" "-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=c8349e48534ea6d8f01515335d95de8ebf5da8df -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240412-102842'" "-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=\"c8349e48534ea6d8f01515335d95de8ebf5da8df\"