Greeting,

FYI, we noticed the following commit (built with gcc-11):

commit: 1702e834ae4cacd37f5691c112bd1f0d0eb88ff2 ("[PATCH v2 11/16] objtool: Add --mnop as an option to --mcount")
url: https://github.com/intel-lab-lkp/linux/commits/Sathvika-Vasireddy/objtool-Enable-and-implement-mcount-option-on-powerpc/20220829-135724
base: https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git next
patch link: https://lore.kernel.org/linuxppc-dev/20220829055223.24767-12-sv(a)linux.ibm.com

in testcase: boot

on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+---------------------------------------------------------+------------+------------+
|                                                         | 86a3ca1815 | 1702e834ae |
+---------------------------------------------------------+------------+------------+
| boot_successes                                          | 44         | 0          |
| boot_failures                                           | 0          | 54         |
| UBSAN:misaligned-access_in_arch/x86/kernel.c            | 0          | 54         |
| UBSAN:misaligned-access_in_arch/x86/mm/init_64.c        | 0          | 54         |
| UBSAN:misaligned-access_in_include/asm-generic/rwonce.h | 0          | 54         |
| UBSAN:misaligned-access_in_lib/string.c                 | 0          | 54         |
| UBSAN:misaligned-access_in_arch/x86/kernel/traps.c      | 0          | 54         |
| RIP:__page_table_check_zero                             | 0          | 54         |
| kernel_BUG_at_mm/page_table_check.c                     | 0          | 54         |
| invalid_opcode:#[##]                                    | 0          | 54         |
| UBSAN:misaligned-access_in_kernel/module/main.c         | 0          | 54         |
| Kernel_panic-not_syncing:Fatal_exception                | 0          | 54         |
+---------------------------------------------------------+------------+------------+


If you fix the issue, kindly add following tag
Reported-by: kernel test robot <yujie.liu@intel.com>


[    0.000000][    T0] UBSAN: misaligned-access in arch/x86/kernel/ebda.c:74:15
[    0.000000][    T0] load of misaligned address (____ptrval____) for type 'short unsigned int'
[    0.000000][    T0] which requires 2 byte alignment
[    0.000000][    T0] CPU: 0 PID: 0 Comm: swapper Not tainted 6.0.0-rc2-00025-g1702e834ae4c #1
[    0.000000][    T0] Call Trace:
[    0.000000][    T0]  <TASK>
[ 0.000000][ T0] dump_stack_lvl (??:?)
[ 0.000000][ T0] dump_stack (??:?)
[ 0.000000][ T0] ubsan_epilogue (ubsan.c:?)
[ 0.000000][ T0] ubsan_type_mismatch_common.cold (ubsan.c:?)
[ 0.000000][ T0] __ubsan_handle_type_mismatch_v1 (??:?)
[ 0.000000][ T0] ? early_ioremap_pmd (ioremap.c:?)
[ 0.000000][ T0] reserve_bios_regions (??:?)
[ 0.000000][ T0] early_reserve_memory (setup.c:?)
[ 0.000000][ T0] setup_arch (??:?)
[ 0.000000][ T0] start_kernel (??:?)
[ 0.000000][ T0] x86_64_start_reservations (??:?)
[ 0.000000][ T0] x86_64_start_kernel (??:?)
[ 0.000000][ T0] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:358)
[    0.000000][    T0]  </TASK>
[    0.000000][    T0] ================================================================================
[    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 0x0000000000100000-0x00000000bffdffff] usable
[    0.000000][    T0] BIOS-e820: [mem 0x00000000bffe0000-0x00000000bfffffff] reserved
[    0.000000][    T0] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[    0.000000][    T0] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[    0.000000][    T0] BIOS-e820: [mem 0x0000000100000000-0x000000043fffffff] usable
[    0.000000][    T0] printk: debug: ignoring loglevel setting.
[    0.000000][    T0] printk: bootconsole [earlyser0] enabled
[    0.000000][    T0] NX (Execute Disable) protection: active
[    0.000000][    T0] Hypervisor detected: KVM
[    0.000000][    T0] kvm-clock: Using msrs 4b564d01 and 4b564d00
[    0.000033][    T0] kvm-clock: using sched offset of 1133706674 cycles
[    0.000816][    T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[    0.003259][    T0] tsc: Detected 2194.916 MHz processor
[    0.008089][    T0] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[    0.009166][    T0] e820: remove [mem 0x000a0000-0x000fffff] usable
[    0.010090][    T0] last_pfn = 0x440000 max_arch_pfn = 0x400000000
[    0.011030][    T0] x86/PAT: PAT support disabled because CONFIG_X86_PAT is disabled in the kernel.
[    0.012255][    T0] x86/PAT: Configuration [0-7]: WB  WT  UC- UC  WB  WT  UC- UC
[    0.013155][    T0] last_pfn = 0xbffe0 max_arch_pfn = 0x400000000
[    0.014010][    T0] Scan for SMP in [mem 0x00000000-0x000003ff]
[    0.014831][    T0] Scan for SMP in [mem 0x0009fc00-0x0009ffff]
[    0.015689][    T0] Scan for SMP in [mem 0x000f0000-0x000fffff]
[    0.023679][    T0] found SMP MP-table at [mem 0x000f5ba0-0x000f5baf]
[    0.024654][    T0]   mpc: f5bb0-f5c80
[    0.025562][    T0] ================================================================================
[    0.026879][    T0] UBSAN: misaligned-access in arch/x86/mm/init_64.c:184:3
[    0.028100][    T0] member access within misaligned address (____ptrval____) for type 'struct page'
[    0.029297][    T0] which requires 16 byte alignment
[    0.030012][    T0] CPU: 0 PID: 0 Comm: swapper Not tainted 6.0.0-rc2-00025-g1702e834ae4c #1
[    0.031141][    T0] Call Trace:
[    0.031571][    T0]  <TASK>
[ 0.031944][ T0] dump_stack_lvl (??:?)
[ 0.032531][ T0] dump_stack (??:?)
[ 0.033067][ T0] ubsan_epilogue (ubsan.c:?)
[ 0.033605][ T0] ubsan_type_mismatch_common.cold (ubsan.c:?)
[ 0.034439][ T0] __ubsan_handle_type_mismatch_v1 (??:?)
[ 0.035254][ T0] sync_global_pgds_l4 (init_64.c:?)
[ 0.035895][ T0] ? __kernel_physical_mapping_init (init_64.c:?)
[ 0.036672][ T0] ? do_raw_spin_unlock (??:?)
[ 0.037343][ T0] sync_global_pgds (init_64.c:?)
[ 0.038020][ T0] __kernel_physical_mapping_init (init_64.c:?)
[ 0.038831][ T0] kernel_physical_mapping_init (??:?)
[ 0.039589][ T0] init_memory_mapping (??:?)
[ 0.040286][ T0] ? alloc_low_pages (??:?)
[ 0.040951][ T0] ? cr4_update_irqsoff (??:?)
[ 0.041636][ T0] init_mem_mapping (??:?)
[ 0.042346][ T0] setup_arch (??:?)
[ 0.042916][ T0] start_kernel (??:?)
[ 0.043491][ T0] x86_64_start_reservations (??:?)
[ 0.044196][ T0] x86_64_start_kernel (??:?)
[ 0.044833][ T0] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:358)
[    0.045593][    T0]  </TASK>
[    0.046007][    T0] ================================================================================
[    0.058929][    T0] RAMDISK: [mem 0xb6b30000-0xbffdffff]
[    0.059783][    T0] ACPI: Early table checksum verification disabled
[    0.060637][    T0] ACPI: RSDP 0x00000000000F59B0 000014 (v00 BOCHS )
[    0.061539][    T0] ACPI: RSDT 0x00000000BFFE199C 000034 (v01 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.062888][    T0] ACPI: FACP 0x00000000BFFE1848 000074 (v01 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.064152][    T0] ACPI: DSDT 0x00000000BFFE0040 001808 (v01 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.065411][    T0] ACPI: FACS 0x00000000BFFE0000 000040
[    0.066248][    T0] ACPI: APIC 0x00000000BFFE18BC 000080 (v01 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.067514][    T0] ACPI: HPET 0x00000000BFFE193C 000038 (v01 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.068735][    T0] ACPI: WAET 0x00000000BFFE1974 000028 (v01 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.069973][    T0] ACPI: Reserving FACP table memory at [mem 0xbffe1848-0xbffe18bb]
[    0.071026][    T0] ACPI: Reserving DSDT table memory at [mem 0xbffe0040-0xbffe1847]
[    0.072066][    T0] ACPI: Reserving FACS table memory at [mem 0xbffe0000-0xbffe003f]
[    0.073098][    T0] ACPI: Reserving APIC table memory at [mem 0xbffe18bc-0xbffe193b]
[    0.074178][    T0] ACPI: Reserving HPET table memory at [mem 0xbffe193c-0xbffe1973]
[    0.075234][    T0] ACPI: Reserving WAET table memory at [mem 0xbffe1974-0xbffe199b]
[    0.076284][    T0] mapped APIC to ffffffffff5fd000 (        fee00000)
[    0.077151][    T0] cma: dma_contiguous_reserve(limit 440000000)
[    0.215007][    T0] Zone ranges:
[    0.215570][    T0]   DMA32    [mem 0x0000000000001000-0x00000000ffffffff]
[    0.216526][    T0]   Normal   [mem 0x0000000100000000-0x000000043fffffff]
[    0.217419][    T0] Movable zone start for each node
[    0.218135][    T0] Early memory node ranges
[    0.218722][    T0]   node   0: [mem 0x0000000000001000-0x000000000009efff]
[    0.219676][    T0]   node   0: [mem 0x0000000000100000-0x00000000bffdffff]
[    0.220672][    T0]   node   0: [mem 0x0000000100000000-0x000000043fffffff]
[    0.221628][    T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000043fffffff]
[    0.222776][    T0] On node 0, zone DMA32: 1 pages in unavailable ranges
[    0.362362][    T0] On node 0, zone DMA32: 97 pages in unavailable ranges
[    0.983938][    T0] On node 0, zone Normal: 32 pages in unavailable ranges
[    2.234262][    T0] kasan: KernelAddressSanitizer initialized
[    2.236430][    T0] ACPI: PM-Timer IO Port: 0x608
[    2.237110][    T0] APIC: NR_CPUS/possible_cpus limit of 1 reached. Processor 1/0x1 ignored.
[    2.238303][    T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[    2.239326][    T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[    2.240370][    T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    2.241303][    T0] Int: type 0, pol 0, trig 0, bus 00, IRQ 00, APIC ID 0, APIC INT 02
[    2.242383][    T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[    2.243324][    T0] Int: type 0, pol 1, trig 3, bus 00, IRQ 05, APIC ID 0, APIC INT 05
[    2.244386][    T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    2.245362][    T0] Int: type 0, pol 1, trig 3, bus 00, IRQ 09, APIC ID 0, APIC INT 09
[    2.246487][    T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[    2.247513][    T0] Int: type 0, pol 1, trig 3, bus 00, IRQ 0a, APIC ID 0, APIC INT 0a
[    2.248558][    T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[    2.249562][    T0] Int: type 0, pol 1, trig 3, bus 00, IRQ 0b, APIC ID 0, APIC INT 0b
[    2.250681][    T0] Int: type 0, pol 0, trig 0, bus 00, IRQ 01, APIC ID 0, APIC INT 01
[    2.251775][    T0] Int: type 0, pol 0, trig 0, bus 00, IRQ 03, APIC ID 0, APIC INT 03
[    2.252820][    T0] Int: type 0, pol 0, trig 0, bus 00, IRQ 04, APIC ID 0, APIC INT 04
[    2.253904][    T0] Int: type 0, pol 0, trig 0, bus 00, IRQ 06, APIC ID 0, APIC INT 06
[    2.254933][    T0] Int: type 0, pol 0, trig 0, bus 00, IRQ 07, APIC ID 0, APIC INT 07
[    2.255993][    T0] Int: type 0, pol 0, trig 0, bus 00, IRQ 08, APIC ID 0, APIC INT 08
[    2.257110][    T0] Int: type 0, pol 0, trig 0, bus 00, IRQ 0c, APIC ID 0, APIC INT 0c
[    2.258206][    T0] Int: type 0, pol 0, trig 0, bus 00, IRQ 0d, APIC ID 0, APIC INT 0d
[    2.259284][    T0] Int: type 0, pol 0, trig 0, bus 00, IRQ 0e, APIC ID 0, APIC INT 0e
[    2.260345][    T0] Int: type 0, pol 0, trig 0, bus 00, IRQ 0f, APIC ID 0, APIC INT 0f
[    2.261406][    T0] ACPI: Using ACPI (MADT) for SMP configuration information
[    2.262435][    T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[    2.263241][    T0] TSC deadline timer available
[    2.263873][    T0] mapped IOAPIC to ffffffffff5fc000 (fec00000)
[    2.264882][    T0] [mem 0xc0000000-0xfeffbfff] available for PCI devices
[    2.265844][    T0] Booting paravirtualized kernel on KVM
[    2.266579][    T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    2.268250][    T0] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    2.269141][    T0] pcpu-alloc: [0] 0
[    2.269843][    T0] Built 1 zonelists, mobility grouping on.  Total pages: 4128482
[    2.270867][    T0] Kernel command line: ip=::::vm-meta-93::dhcp root=/dev/ram0 RESULT_ROOT=/result/boot/300/vm-snb/debian-11.1-x86_64-20220510.cgz/x86_64-randconfig-a005-20220829/gcc-11/1702e834ae4cacd37f5691c112bd1f0d0eb88ff2/19 BOOT_IMAGE=/pkg/linux/x86_64-randconfig-a005-20220829/gcc-11/1702e834ae4cacd37f5691c112bd1f0d0eb88ff2/vmlinuz-6.0.0-rc2-00025-g1702e834ae4c branch=linux-review/Sathvika-Vasireddy/objtool-Enable-and-implement-mcount-option-on-powerpc/20220829-135724 job=/lkp/jobs/scheduled/vm-meta-93/boot-300-debian-11.1-x86_64-20220510.cgz-1702e834ae4cacd37f5691c112bd1f0d0eb88ff2-20220830-15480-1xn43ii-15.yaml user=lkp ARCH=x86_64 kconfig=x86_64-randconfig-a005-20220829 commit=1702e834ae4cacd37f5691c112bd1f0d0eb88ff2 vmalloc=256M initramfs_async=0 page_owner=on max_uptime=600 LKP_SERVER=internal-lkp-server selinux=0 debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 net.ifnames=0 printk.devkmsg=on panic=-1 softlockup_panic=1 nmi_watchdog=panic oop
[    2.271102][    T0] ================================================================================
[    2.284112][    T0] UBSAN: misaligned-access in include/asm-generic/rwonce.h:86:9
[    2.285365][    T0] load of misaligned address (____ptrval____) for type 'long unsigned int'
[    2.286620][    T0] which requires 8 byte alignment
[    2.287312][    T0] CPU: 0 PID: 0 Comm: swapper Not tainted 6.0.0-rc2-00025-g1702e834ae4c #1
[    2.288461][    T0] Call Trace:
[    2.288873][    T0]  <TASK>
[ 2.289237][ T0] dump_stack_lvl (??:?)
[ 2.289903][ T0] dump_stack (??:?)
[ 2.290501][ T0] ubsan_epilogue (ubsan.c:?)
[ 2.291078][ T0] ubsan_type_mismatch_common.cold (ubsan.c:?)
[ 2.291913][ T0] __ubsan_handle_type_mismatch_v1 (??:?)
[ 2.292723][ T0] ? kasan_metadata_fetch_row (??:?)
[ 2.293462][ T0] read_word_at_a_time (dcache.c:?)
[ 2.294180][ T0] strscpy (??:?)
[ 2.294766][ T0] ? read_word_at_a_time (??:?)
[ 2.295487][ T0] ? strcmp (??:?)
[ 2.296058][ T0] ip_auto_config_setup (ipconfig.c:?)
[ 2.296748][ T0] ? strlen (??:?)
[ 2.297288][ T0] unknown_bootoption (main.c:?)
[ 2.298002][ T0] parse_args (??:?)
[ 2.298573][ T0] ? set_init_arg (main.c:?)
[ 2.299216][ T0] ? parameq (??:?)
[ 2.299771][ T0] ? mutex_unlock (??:?)
[ 2.300375][ T0] ? __cpuhp_setup_state_cpuslocked (??:?)
[ 2.301220][ T0] ? drain_pages+0x1b0/0x1b0
[ 2.302018][ T0] ? check_free_page_bad (page_alloc.c:?)
[ 2.302776][ T0] start_kernel (??:?)
[ 2.303444][ T0] ? set_init_arg (main.c:?)
[ 2.304061][ T0] x86_64_start_reservations (??:?)
[ 2.304807][ T0] x86_64_start_kernel (??:?)
[ 2.305485][ T0] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:358)
[    2.306305][    T0]  </TASK>
[    2.306737][    T0] ================================================================================
[    2.307991][    T0] ================================================================================
[    2.309204][    T0] UBSAN: misaligned-access in lib/string.c:210:32
[    2.310355][    T0] store to misaligned address (____ptrval____) for type 'long unsigned int'
[    2.311500][    T0] which requires 8 byte alignment
[    2.312155][    T0] CPU: 0 PID: 0 Comm: swapper Not tainted 6.0.0-rc2-00025-g1702e834ae4c #1
[    2.313373][    T0] Call Trace:
[    2.313876][    T0]  <TASK>
[ 2.314250][ T0] dump_stack_lvl (??:?)
[ 2.314869][ T0] dump_stack (??:?)
[ 2.315442][ T0] ubsan_epilogue (ubsan.c:?)
[ 2.316043][ T0] ubsan_type_mismatch_common.cold (ubsan.c:?)
[ 2.316855][ T0] __ubsan_handle_type_mismatch_v1 (??:?)
[ 2.317672][ T0] strscpy (??:?)
[ 2.318286][ T0] ? read_word_at_a_time (??:?)
[ 2.318997][ T0] ? strcmp (??:?)
[ 2.319536][ T0] ip_auto_config_setup (ipconfig.c:?)
[ 2.320240][ T0] ? strlen (??:?)
[ 2.320770][ T0] unknown_bootoption (main.c:?)
[ 2.321420][ T0] parse_args (??:?)
[ 2.322091][ T0] ? set_init_arg (main.c:?)
[ 2.322736][ T0] ? parameq (??:?)
[ 2.323309][ T0] ? mutex_unlock (??:?)
[ 2.323913][ T0] ? __cpuhp_setup_state_cpuslocked (??:?)
[ 2.324766][ T0] ? drain_pages+0x1b0/0x1b0
[ 2.325481][ T0] ? check_free_page_bad (page_alloc.c:?)
[ 2.326251][ T0] start_kernel (??:?)
[ 2.326858][ T0] ? set_init_arg (main.c:?)
[ 2.327465][ T0] x86_64_start_reservations (??:?)
[ 2.328177][ T0] x86_64_start_kernel (??:?)
[ 2.328837][ T0] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:358)
[    2.329613][    T0]  </TASK>
[    2.330105][    T0] ================================================================================
[    2.333180][    T0] sysrq: sysrq always enabled.
[    2.334696][    T0] ignoring the deprecated load_ramdisk= option
[    2.336723][    T0] Unknown kernel command line parameters "RESULT_ROOT=/result/boot/300/vm-snb/debian-11.1-x86_64-20220510.cgz/x86_64-randconfig-a005-20220829/gcc-11/1702e834ae4cacd37f5691c112bd1f0d0eb88ff2/19 BOOT_IMAGE=/pkg/linux/x86_64-randconfig-a005-20220829/gcc-11/1702e834ae4cacd37f5691c112bd1f0d0eb88ff2/vmlinuz-6.0.0-rc2-00025-g1702e834ae4c branch=linux-review/Sathvika-Vasireddy/objtool-Enable-and-implement-mcount-option-on-powerpc/20220829-135724 job=/lkp/jobs/scheduled/vm-meta-93/boot-300-debian-11.1-x86_64-20220510.cgz-1702e834ae4cacd37f5691c112bd1f0d0eb88ff2-20220830-15480-1xn43ii-15.yaml user=lkp ARCH=x86_64 kconfig=x86_64-randconfig-a005-20220829 commit=1702e834ae4cacd37f5691c112bd1f0d0eb88ff2 vmalloc=256M max_uptime=600 LKP_SERVER=internal-lkp-server selinux=0 softlockup_panic=1 prompt_ramdisk=0 vga=normal", will be passed to user space.
[    2.356403][    T0] Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes, linear)
[    2.362921][    T0] Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear)
[    2.365443][    T0] mem auto-init: stack:off, heap alloc:on, heap free:off
[    2.371216][    T0] stackdepot hash table entries: 1048576 (order: 11, 8388608 bytes, linear)
[    2.372498][    T0] software IO TLB: area num 1.
[    2.516303][    T0] ================================================================================
[    2.517626][    T0] UBSAN: misaligned-access in arch/x86/kernel/traps.c:99:9
[    2.518882][    T0] load of misaligned address (____ptrval____) for type 'short unsigned int'
[    2.519991][    T0] which requires 2 byte alignment
[    2.520659][    T0] CPU: 0 PID: 0 Comm: swapper Not tainted 6.0.0-rc2-00025-g1702e834ae4c #1
[    2.521849][    T0] Call Trace:
[    2.522307][    T0]  <TASK>
[ 2.522723][ T0] dump_stack_lvl (??:?)
[ 2.523395][ T0] ? __page_table_check_zero (??:?)
[ 2.524152][ T0] dump_stack (??:?)
[ 2.524710][ T0] ubsan_epilogue (ubsan.c:?)
[ 2.525295][ T0] ubsan_type_mismatch_common.cold (ubsan.c:?)
[ 2.526118][ T0] ? __page_table_check_zero (??:?)
[ 2.526838][ T0] __ubsan_handle_type_mismatch_v1 (??:?)
[ 2.527609][ T0] handle_bug (traps.c:?)
[ 2.528183][ T0] exc_invalid_op (??:?)
[ 2.528829][ T0] asm_exc_invalid_op (??:?)
[ 2.529509][ T0] RIP: 0010:__page_table_check_zero (??:?)
[ 2.530401][ T0] Code: c7 60 be d2 85 49 83 c4 01 e8 7d 93 fa ff 48 03 1d 66 d8 59 04 41 83 fd 3f 0f 86 65 ff ff ff e9 a9 d3 06 02 0f 0b 0f 0b 0f 0b <0f> 0b 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 d2 31 c9
All code
========
    0:	c7                   	(bad)
    1:	60                   	(bad)
    2:	be d2 85 49 83       	mov    $0x834985d2,%esi
    7:	c4 01 e8 7d          	(bad)
    b:	93                   	xchg   %eax,%ebx
    c:	fa                   	cli
    d:	ff 48 03             	decl   0x3(%rax)
   10:	1d 66 d8 59 04       	sbb    $0x459d866,%eax
   15:	41 83 fd 3f          	cmp    $0x3f,%r13d
   19:	0f 86 65 ff ff ff    	jbe    0xffffffffffffff84
   1f:	e9 a9 d3 06 02       	jmpq   0x206d3cd
   24:	0f 0b                	ud2
   26:	0f 0b                	ud2
   28:	0f 0b                	ud2
   2a:*	0f 0b                	ud2    		<-- trapping instruction
   2c:	48 83 c4 10          	add    $0x10,%rsp
   30:	5b                   	pop    %rbx
   31:	41 5c                	pop    %r12
   33:	41 5d                	pop    %r13
   35:	41 5e                	pop    %r14
   37:	41 5f                	pop    %r15
   39:	5d                   	pop    %rbp
   3a:	31 c0                	xor    %eax,%eax
   3c:	31 d2                	xor    %edx,%edx
   3e:	31 c9                	xor    %ecx,%ecx

Code starting with the faulting instruction
===========================================
    0:	0f 0b                	ud2
    2:	48 83 c4 10          	add    $0x10,%rsp
    6:	5b                   	pop    %rbx
    7:	41 5c                	pop    %r12
    9:	41 5d                	pop    %r13
    b:	41 5e                	pop    %r14
    d:	41 5f                	pop    %r15
    f:	5d                   	pop    %rbp
   10:	31 c0                	xor    %eax,%eax
   12:	31 d2                	xor    %edx,%edx
   14:	31 c9                	xor    %ecx,%ecx
[    2.532979][    T0] RSP: 0000:ffffffff84a07cb0 EFLAGS: 00010046
[    2.533894][    T0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[    2.534928][    T0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[    2.535942][    T0] RBP: ffffffff84a07ce8 R08: 0000000000000000 R09: 0000000000000000
[    2.536932][    T0] R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0000004000
[    2.537988][    T0] R13: 0000000000000008 R14: ffffea0000007ff4 R15: 0000000000000000
[ 2.539077][ T0] __free_pages_ok (page_alloc.c:?)
[ 2.539786][ T0] __free_pages_core (??:?)
[ 2.540457][ T0] memblock_free_pages (??:?)
[ 2.541129][ T0] memblock_free_all (??:?)
[ 2.541858][ T0] ? reset_all_zones_managed_pages (??:?)
[ 2.542685][ T0] ? swiotlb_init_io_tlb_mem+0x202/0x2d0
[ 2.543634][ T0] ? swiotlb_init_remap (??:?)
[ 2.544351][ T0] mem_init (??:?)
[ 2.544870][ T0] mm_init (main.c:?)
[ 2.545396][ T0] start_kernel (??:?)
[ 2.546049][ T0] x86_64_start_reservations (??:?)
[ 2.546754][ T0] x86_64_start_kernel (??:?)
[ 2.547397][ T0] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:358)
[    2.548149][    T0]  </TASK>
[    2.548550][    T0] ================================================================================
[    2.549810][    T0] ================================================================================
[    2.551092][    T0] UBSAN: misaligned-access in arch/x86/kernel/traps.c:99:9
[    2.552328][    T0] load of misaligned address (____ptrval____) for type 'short unsigned int'
[    2.553461][    T0] which requires 2 byte alignment
[    2.554190][    T0] CPU: 0 PID: 0 Comm: swapper Not tainted 6.0.0-rc2-00025-g1702e834ae4c #1
[    2.555346][    T0] Call Trace:
[    2.555792][    T0]  <TASK>
[ 2.556188][ T0] dump_stack_lvl (??:?)
[ 2.556809][ T0] ? __page_table_check_zero (??:?)
[ 2.557618][ T0] dump_stack (??:?)
[ 2.558210][ T0] ubsan_epilogue (ubsan.c:?)
[ 2.558807][ T0] ubsan_type_mismatch_common.cold (ubsan.c:?)
[ 2.559628][ T0] ? __page_table_check_zero (??:?)
[ 2.560331][ T0] ? __page_table_check_zero (??:?)
[ 2.561056][ T0] __ubsan_handle_type_mismatch_v1 (??:?)
[ 2.561939][ T0] is_valid_bugaddr (??:?)
[ 2.562620][ T0] report_bug (??:?)
[ 2.563239][ T0] ? find_bug (??:?)
[ 2.563827][ T0] ? ubsan_epilogue (ubsan.c:?)
[ 2.564469][ T0] ? ubsan_type_mismatch_common.cold (ubsan.c:?)
[ 2.565309][ T0] ? __page_table_check_zero (??:?)
[ 2.566050][ T0] ? __page_table_check_zero (??:?)
[ 2.566792][ T0] handle_bug (traps.c:?)
[ 2.567383][ T0] exc_invalid_op (??:?)
[ 2.567954][ T0] asm_exc_invalid_op (??:?)
[ 2.568585][ T0] RIP: 0010:__page_table_check_zero (??:?)
[ 2.569370][ T0] Code: c7 60 be d2 85 49 83 c4 01 e8 7d 93 fa ff 48 03 1d 66 d8 59 04 41 83 fd 3f 0f 86 65 ff ff ff e9 a9 d3 06 02 0f 0b 0f 0b 0f 0b <0f> 0b 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 d2 31 c9
All code
========
    0:	c7                   	(bad)
    1:	60                   	(bad)
    2:	be d2 85 49 83       	mov    $0x834985d2,%esi
    7:	c4 01 e8 7d          	(bad)
    b:	93                   	xchg   %eax,%ebx
    c:	fa                   	cli
    d:	ff 48 03             	decl   0x3(%rax)
   10:	1d 66 d8 59 04       	sbb    $0x459d866,%eax
   15:	41 83 fd 3f          	cmp    $0x3f,%r13d
   19:	0f 86 65 ff ff ff    	jbe    0xffffffffffffff84
   1f:	e9 a9 d3 06 02       	jmpq   0x206d3cd
   24:	0f 0b                	ud2
   26:	0f 0b                	ud2
   28:	0f 0b                	ud2
   2a:*	0f 0b                	ud2    		<-- trapping instruction
   2c:	48 83 c4 10          	add    $0x10,%rsp
   30:	5b                   	pop    %rbx
   31:	41 5c                	pop    %r12
   33:	41 5d                	pop    %r13
   35:	41 5e                	pop    %r14
   37:	41 5f                	pop    %r15
   39:	5d                   	pop    %rbp
   3a:	31 c0                	xor    %eax,%eax
   3c:	31 d2                	xor    %edx,%edx
   3e:	31 c9                	xor    %ecx,%ecx

Code starting with the faulting instruction
===========================================
    0:	0f 0b                	ud2
    2:	48 83 c4 10          	add    $0x10,%rsp
    6:	5b                   	pop    %rbx
    7:	41 5c                	pop    %r12
    9:	41 5d                	pop    %r13
    b:	41 5e                	pop    %r14
    d:	41 5f                	pop    %r15
    f:	5d                   	pop    %rbp
   10:	31 c0                	xor    %eax,%eax
   12:	31 d2                	xor    %edx,%edx
   14:	31 c9                	xor    %ecx,%ecx
[    2.572025][    T0] RSP: 0000:ffffffff84a07cb0 EFLAGS: 00010046
[    2.572812][    T0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[    2.573853][    T0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[    2.574917][    T0] RBP: ffffffff84a07ce8 R08: 0000000000000000 R09: 0000000000000000
[    2.575905][    T0] R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0000004000
[    2.576832][    T0] R13: 0000000000000008 R14: ffffea0000007ff4 R15: 0000000000000000
[ 2.577846][ T0] __free_pages_ok (page_alloc.c:?)
[ 2.578485][ T0] __free_pages_core (??:?)
[ 2.579103][ T0] memblock_free_pages (??:?)
[ 2.579764][ T0] memblock_free_all (??:?)
[ 2.580395][ T0] ? reset_all_zones_managed_pages (??:?)
[ 2.581163][ T0] ? swiotlb_init_io_tlb_mem+0x202/0x2d0
[ 2.582076][ T0] ? swiotlb_init_remap (??:?)
[ 2.582778][ T0] mem_init (??:?)
[ 2.583307][ T0] mm_init (main.c:?)
[ 2.583841][ T0] start_kernel (??:?)
[ 2.584430][ T0] x86_64_start_reservations (??:?)
[ 2.585123][ T0] x86_64_start_kernel (??:?)
[ 2.585844][ T0] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:358)
[    2.586642][    T0]  </TASK>
[    2.587067][    T0] ================================================================================
[    2.588386][    T0] ------------[ cut here ]------------
[    2.589105][    T0] kernel BUG at mm/page_table_check.c:132!
[    2.589946][    T0] invalid opcode: 0000 [#1] KASAN
[    2.590551][    T0] CPU: 0 PID: 0 Comm: swapper Not tainted 6.0.0-rc2-00025-g1702e834ae4c #1
[ 2.591718][ T0] RIP: 0010:__page_table_check_zero (??:?)
[ 2.592520][ T0] Code: c7 60 be d2 85 49 83 c4 01 e8 7d 93 fa ff 48 03 1d 66 d8 59 04 41 83 fd 3f 0f 86 65 ff ff ff e9 a9 d3 06 02 0f 0b 0f 0b 0f 0b <0f> 0b 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 d2 31 c9
All code
========
    0:	c7                   	(bad)
    1:	60                   	(bad)
    2:	be d2 85 49 83       	mov    $0x834985d2,%esi
    7:	c4 01 e8 7d          	(bad)
    b:	93                   	xchg   %eax,%ebx
    c:	fa                   	cli
    d:	ff 48 03             	decl   0x3(%rax)
   10:	1d 66 d8 59 04       	sbb    $0x459d866,%eax
   15:	41 83 fd 3f          	cmp    $0x3f,%r13d
   19:	0f 86 65 ff ff ff    	jbe    0xffffffffffffff84
   1f:	e9 a9 d3 06 02       	jmpq   0x206d3cd
   24:	0f 0b                	ud2
   26:	0f 0b                	ud2
   28:	0f 0b                	ud2
   2a:*	0f 0b                	ud2    		<-- trapping instruction
   2c:	48 83 c4 10          	add    $0x10,%rsp
   30:	5b                   	pop    %rbx
   31:	41 5c                	pop    %r12
   33:	41 5d                	pop    %r13
   35:	41 5e                	pop    %r14
   37:	41 5f                	pop    %r15
   39:	5d                   	pop    %rbp
   3a:	31 c0                	xor    %eax,%eax
   3c:	31 d2                	xor    %edx,%edx
   3e:	31 c9                	xor    %ecx,%ecx

Code starting with the faulting instruction
===========================================
    0:	0f 0b                	ud2
    2:	48 83 c4 10          	add    $0x10,%rsp
    6:	5b                   	pop    %rbx
    7:	41 5c                	pop    %r12
    9:	41 5d                	pop    %r13
    b:	41 5e                	pop    %r14
    d:	41 5f                	pop    %r15
    f:	5d                   	pop    %rbp
   10:	31 c0                	xor    %eax,%eax
   12:	31 d2                	xor    %edx,%edx
   14:	31 c9                	xor    %ecx,%ecx
[    2.595139][    T0] RSP: 0000:ffffffff84a07cb0 EFLAGS: 00010046
[    2.595960][    T0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[    2.596981][    T0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[    2.598043][    T0] RBP: ffffffff84a07ce8 R08: 0000000000000000 R09: 0000000000000000
[    2.599052][    T0] R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0000004000
[    2.600146][    T0] R13: 0000000000000008 R14: ffffea0000007ff4 R15: 0000000000000000
[    2.601229][    T0] FS:  0000000000000000(0000) GS:ffffffff84d7d000(0000) knlGS:0000000000000000
[    2.602414][    T0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.603288][    T0] CR2: ffff88843ffff000 CR3: 0000000004a3a000 CR4: 00000000000406b0
[    2.604305][    T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    2.605397][    T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    2.606520][    T0] Call Trace:
[    2.606950][    T0]  <TASK>
[ 2.607338][ T0] __free_pages_ok (page_alloc.c:?)
[ 2.608003][ T0] __free_pages_core (??:?)
[ 2.608624][ T0] memblock_free_pages (??:?)
[ 2.609285][ T0] memblock_free_all (??:?)
[ 2.609991][ T0] ? reset_all_zones_managed_pages (??:?)
[ 2.610798][ T0] ? swiotlb_init_io_tlb_mem+0x202/0x2d0
[ 2.611710][ T0] ? swiotlb_init_remap (??:?)
[ 2.612441][ T0] mem_init (??:?)
[ 2.612952][ T0] mm_init (main.c:?)
[ 2.613456][ T0] start_kernel (??:?)
[ 2.614120][ T0] x86_64_start_reservations (??:?)
[ 2.614846][ T0] x86_64_start_kernel (??:?)
[ 2.615526][ T0] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:358)
[    2.616324][    T0]  </TASK>
[    2.616727][    T0] Modules linked in:
[    2.616735][    T0] ================================================================================
[    2.618507][    T0] UBSAN: misaligned-access in kernel/module/main.c:3150:2
[    2.619677][    T0] member access within misaligned address (____ptrval____) for type 'struct module'
[    2.620908][    T0] which requires 64 byte alignment
[    2.621604][    T0] CPU: 0 PID: 0 Comm: swapper Not tainted 6.0.0-rc2-00025-g1702e834ae4c #1
[    2.622826][    T0] Call Trace:
[    2.623265][    T0]  <TASK>
[ 2.623646][ T0] dump_stack_lvl (??:?)
[ 2.624232][ T0] dump_stack (??:?)
[ 2.624774][ T0] ubsan_epilogue (ubsan.c:?)
[ 2.625339][ T0] ubsan_type_mismatch_common.cold (ubsan.c:?)
[ 2.626164][ T0] __ubsan_handle_type_mismatch_v1 (??:?)
[ 2.626944][ T0] print_modules (??:?)
[ 2.627575][ T0] ? load_module.cold (??:?)
[ 2.628223][ T0] ? secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:358)
[ 2.629050][ T0] die (??:?)
[ 2.629525][ T0] do_trap (traps.c:?)
[ 2.630074][ T0] ? __page_table_check_zero (??:?)
[ 2.630849][ T0] handle_invalid_op (traps.c:?)
[ 2.631533][ T0] ? __page_table_check_zero (??:?)
[ 2.632264][ T0] exc_invalid_op (??:?)
[ 2.632874][ T0] asm_exc_invalid_op (??:?)
[ 2.633525][ T0] RIP: 0010:__page_table_check_zero (??:?)
[ 2.634406][ T0] Code: c7 60 be d2 85 49 83 c4 01 e8 7d 93 fa ff 48 03 1d 66 d8 59 04 41 83 fd 3f 0f 86 65 ff ff ff e9 a9 d3 06 02 0f 0b 0f 0b 0f 0b <0f> 0b 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 d2 31 c9
All code
========
    0:	c7                   	(bad)
    1:	60                   	(bad)
    2:	be d2 85 49 83       	mov    $0x834985d2,%esi
    7:	c4 01 e8 7d          	(bad)
    b:	93                   	xchg   %eax,%ebx
    c:	fa                   	cli
    d:	ff 48 03             	decl   0x3(%rax)
   10:	1d 66 d8 59 04       	sbb    $0x459d866,%eax
   15:	41 83 fd 3f          	cmp    $0x3f,%r13d
   19:	0f 86 65 ff ff ff    	jbe    0xffffffffffffff84
   1f:	e9 a9 d3 06 02       	jmpq   0x206d3cd
   24:	0f 0b                	ud2
   26:	0f 0b                	ud2
   28:	0f 0b                	ud2
   2a:*	0f 0b                	ud2    		<-- trapping instruction
   2c:	48 83 c4 10          	add    $0x10,%rsp
   30:	5b                   	pop    %rbx
   31:	41 5c                	pop    %r12
   33:	41 5d                	pop    %r13
   35:	41 5e                	pop    %r14
   37:	41 5f                	pop    %r15
   39:	5d                   	pop    %rbp
   3a:	31 c0                	xor    %eax,%eax
   3c:	31 d2                	xor    %edx,%edx
   3e:	31 c9                	xor    %ecx,%ecx

Code starting with the faulting instruction
===========================================
    0:	0f 0b                	ud2
    2:	48 83 c4 10          	add    $0x10,%rsp
    6:	5b                   	pop    %rbx
    7:	41 5c                	pop    %r12
    9:	41 5d                	pop    %r13
    b:	41 5e                	pop    %r14
    d:	41 5f                	pop    %r15
    f:	5d                   	pop    %rbp
   10:	31 c0                	xor    %eax,%eax
   12:	31 d2                	xor    %edx,%edx
   14:	31 c9                	xor    %ecx,%ecx
[    2.636984][    T0] RSP: 0000:ffffffff84a07cb0 EFLAGS: 00010046
[    2.637790][    T0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[    2.638799][    T0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[    2.639841][    T0] RBP: ffffffff84a07ce8 R08: 0000000000000000 R09: 0000000000000000
[    2.640943][    T0] R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0000004000
[    2.642025][    T0] R13: 0000000000000008 R14: ffffea0000007ff4 R15: 0000000000000000
[ 2.643048][ T0] __free_pages_ok (page_alloc.c:?)
[ 2.643667][ T0] __free_pages_core (??:?)
[ 2.644334][ T0] memblock_free_pages (??:?)
[ 2.645007][ T0] memblock_free_all (??:?)
[ 2.645689][ T0] ? reset_all_zones_managed_pages (??:?)
[ 2.646540][ T0] ? swiotlb_init_io_tlb_mem+0x202/0x2d0
[ 2.647444][ T0] ? swiotlb_init_remap (??:?)
[ 2.648112][ T0] mem_init (??:?)
[ 2.648612][ T0] mm_init (main.c:?)
[ 2.649133][ T0] start_kernel (??:?)
[ 2.649817][ T0] x86_64_start_reservations (??:?)
[ 2.650517][ T0] x86_64_start_kernel (??:?)
[ 2.651174][ T0] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:358)
[    2.651936][    T0]  </TASK>
[    2.652313][    T0] ================================================================================
[    2.653508][    T0]
[    2.653863][    T0] ---[ end trace 0000000000000000 ]---
[ 2.654559][ T0] RIP: 0010:__page_table_check_zero (??:?)
[ 2.655425][ T0] Code: c7 60 be d2 85 49 83 c4 01 e8 7d 93 fa ff 48 03 1d 66 d8 59 04 41 83 fd 3f 0f 86 65 ff ff ff e9 a9 d3 06 02 0f 0b 0f 0b 0f 0b <0f> 0b 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 d2 31 c9
All code
========
    0:	c7                   	(bad)
    1:	60                   	(bad)
    2:	be d2 85 49 83       	mov    $0x834985d2,%esi
    7:	c4 01 e8 7d          	(bad)
    b:	93                   	xchg   %eax,%ebx
    c:	fa                   	cli
    d:	ff 48 03             	decl   0x3(%rax)
   10:	1d 66 d8 59 04       	sbb    $0x459d866,%eax
   15:	41 83 fd 3f          	cmp    $0x3f,%r13d
   19:	0f 86 65 ff ff ff    	jbe    0xffffffffffffff84
   1f:	e9 a9 d3 06 02       	jmpq   0x206d3cd
   24:	0f 0b                	ud2
   26:	0f 0b                	ud2
   28:	0f 0b                	ud2
   2a:*	0f 0b                	ud2    		<-- trapping instruction
   2c:	48 83 c4 10          	add    $0x10,%rsp
   30:	5b                   	pop    %rbx
   31:	41 5c                	pop    %r12
   33:	41 5d                	pop    %r13
   35:	41 5e                	pop    %r14
   37:	41 5f                	pop    %r15
   39:	5d                   	pop    %rbp
   3a:	31 c0                	xor    %eax,%eax
   3c:	31 d2                	xor    %edx,%edx
   3e:	31 c9                	xor    %ecx,%ecx

Code starting with the faulting instruction
===========================================
    0:	0f 0b                	ud2
    2:	48 83 c4 10          	add    $0x10,%rsp
    6:	5b                   	pop    %rbx
    7:	41 5c                	pop    %r12
    9:	41 5d                	pop    %r13
    b:	41 5e                	pop    %r14
    d:	41 5f                	pop    %r15
    f:	5d                   	pop    %rbp
   10:	31 c0                	xor    %eax,%eax
   12:	31 d2                	xor    %edx,%edx
   14:	31 c9                	xor    %ecx,%ecx


To reproduce:

         # build kernel
	cd linux
	cp config-6.0.0-rc2-00025-g1702e834ae4c .config
	make HOSTCC=gcc-11 CC=gcc-11 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
	make HOSTCC=gcc-11 CC=gcc-11 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install
	cd <mod-install-dir>
	find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz


         git clone https://github.com/intel/lkp-tests.git
         cd lkp-tests
         bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email

         # if come across any failure that blocks the test,
         # please remove ~/.lkp and /lkp dir to run from a clean state.


-- 
0-DAY CI Kernel Test Service
https://01.org/lkp