(please be noted we reported "[bitops] 001bea109d: BUG:KASAN:wild-memory-access_in_dmar_parse_one_rhsa" on https://lore.kernel.org/all/YrnGLtDXAveqXGok@xsang-OptiPlex-9020/ now we noticed this commit has already been merged into linux-next/master, and the issue is still existing. report again FYI) Greeting, FYI, we noticed the following commit (built with gcc-11): commit: 0e862838f290147ea9c16db852d8d494b552d38d ("bitops: unify non-atomic bitops prototypes across architectures") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master in testcase: xfstests version: xfstests-x86_64-c1144bf-1_20220627 with following parameters: disk: 2pmem fs: ext4 test: ext4-dax ucode: 0x700001c test-description: xfstests is a regression test suite for xfs and other files ystems. test-url: git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git on test machine: 16 threads 1 sockets Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz with 48G memory caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): If you fix the issue, kindly add following tag Reported-by: kernel test robot [ 4.668325][ T0] BUG: KASAN: wild-memory-access in dmar_parse_one_rhsa (arch/x86/include/asm/bitops.h:214 arch/x86/include/asm/bitops.h:226 include/asm-generic/bitops/instrumented-non-atomic.h:142 include/linux/nodemask.h:415 drivers/iommu/intel/dmar.c:497) [ 4.676149][ T0] Read of size 8 at addr 1fffffff85115558 by task swapper/0/0 [ 4.683454][ T0] [ 4.685638][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.19.0-rc3-00004-g0e862838f290 #1 [ 4.694331][ T0] Hardware name: Supermicro SYS-5018D-FN4T/X10SDV-8C-TLN4F, BIOS 1.1 03/02/2016 [ 4.703196][ T0] Call Trace: [ 4.706334][ T0] [ 4.709133][ T0] ? dmar_parse_one_rhsa (arch/x86/include/asm/bitops.h:214 arch/x86/include/asm/bitops.h:226 include/asm-generic/bitops/instrumented-non-atomic.h:142 include/linux/nodemask.h:415 drivers/iommu/intel/dmar.c:497) [ 4.714272][ T0] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1)) [ 4.718632][ T0] kasan_report (mm/kasan/report.c:162 mm/kasan/report.c:493) [ 4.722903][ T0] ? dmar_parse_one_rhsa (arch/x86/include/asm/bitops.h:214 arch/x86/include/asm/bitops.h:226 include/asm-generic/bitops/instrumented-non-atomic.h:142 include/linux/nodemask.h:415 drivers/iommu/intel/dmar.c:497) [ 4.728042][ T0] kasan_check_range (mm/kasan/generic.c:190) [ 4.732750][ T0] dmar_parse_one_rhsa (arch/x86/include/asm/bitops.h:214 arch/x86/include/asm/bitops.h:226 include/asm-generic/bitops/instrumented-non-atomic.h:142 include/linux/nodemask.h:415 drivers/iommu/intel/dmar.c:497) [ 4.737715][ T0] dmar_walk_remapping_entries (drivers/iommu/intel/dmar.c:609) [ 4.743375][ T0] parse_dmar_table (drivers/iommu/intel/dmar.c:671) [ 4.748079][ T0] ? dmar_table_detect (drivers/iommu/intel/dmar.c:633) [ 4.752872][ T0] ? dmar_free_dev_scope (drivers/iommu/intel/dmar.c:408) [ 4.758010][ T0] ? init_dmars (drivers/iommu/intel/iommu.c:3359) [ 4.762370][ T0] ? iommu_resume (drivers/iommu/intel/iommu.c:3419) [ 4.766903][ T0] ? dmar_walk_dsm_resource+0x300/0x300 [ 4.772909][ T0] ? dmar_acpi_insert_dev_scope (drivers/iommu/intel/dmar.c:466) [ 4.778655][ T0] ? dmar_check_one_atsr (drivers/iommu/intel/iommu.c:3521) [ 4.783795][ T0] dmar_table_init (drivers/iommu/intel/dmar.c:846) [ 4.788239][ T0] intel_prepare_irq_remapping (drivers/iommu/intel/irq_remapping.c:742) [ 4.793811][ T0] irq_remapping_prepare (drivers/iommu/irq_remapping.c:102) [ 4.798778][ T0] enable_IR_x2apic (arch/x86/kernel/apic/apic.c:1928) [ 4.803395][ T0] default_setup_apic_routing (arch/x86/kernel/apic/probe_64.c:25 (discriminator 1)) [ 4.808883][ T0] apic_intr_mode_init (arch/x86/kernel/apic/apic.c:1446) [ 4.813761][ T0] x86_late_time_init (arch/x86/kernel/time.c:101) [ 4.818467][ T0] start_kernel (init/main.c:1101) [ 4.822827][ T0] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:358) [ 4.828572][ T0] [ 4.831456][ T0] ================================================================== [ 4.839377][ T0] Disabling lock debugging due to kernel taint [ 4.845393][ T0] DMAR-IR: IOAPIC id 8 under DRHD base 0xfbffc000 IOMMU 0 [ 4.852446][ T0] DMAR-IR: IOAPIC id 9 under DRHD base 0xfbffc000 IOMMU 0 [ 4.859499][ T0] DMAR-IR: HPET id 0 under DRHD base 0xfbffc000 [ 4.865592][ T0] DMAR-IR: x2apic is disabled because BIOS sets x2apic opt out bit. [ 4.865594][ T0] DMAR-IR: Use 'intremap=no_x2apic_optout' to override the BIOS setting. [ 4.882020][ T0] DMAR-IR: IRQ remapping was enabled on dmar0 but we are not in kdump mode [ 4.890554][ T0] DMAR-IR: Enabled IRQ remapping in xapic mode [ 4.896557][ T0] x2apic: IRQ remapping doesn't support X2APIC mode [ 4.902999][ T0] Switched APIC routing to physical flat. [ 4.908578][ T0] masked ExtINT on CPU#0 [ 4.913011][ T0] ENABLING IO-APIC IRQs [ 4.917035][ T0] init IO_APIC IRQs [ 4.920694][ T0] apic 8 pin 0 not connected [ 4.925241][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 4.939400][ T0] IOAPIC[0]: Preconfigured routing entry (8-1 -> IRQ 1 Level:0 ActiveLow:0) [ 4.947926][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:30 Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 4.962091][ T0] IOAPIC[0]: Preconfigured routing entry (8-2 -> IRQ 0 Level:0 ActiveLow:0) [ 4.970634][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 4.984794][ T0] IOAPIC[0]: Preconfigured routing entry (8-3 -> IRQ 3 Level:0 ActiveLow:0) [ 4.993326][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 5.007482][ T0] IOAPIC[0]: Preconfigured routing entry (8-4 -> IRQ 4 Level:0 ActiveLow:0) [ 5.016013][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 5.030169][ T0] IOAPIC[0]: Preconfigured routing entry (8-5 -> IRQ 5 Level:0 ActiveLow:0) [ 5.038705][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 5.052859][ T0] IOAPIC[0]: Preconfigured routing entry (8-6 -> IRQ 6 Level:0 ActiveLow:0) [ 5.061389][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 5.075545][ T0] IOAPIC[0]: Preconfigured routing entry (8-7 -> IRQ 7 Level:0 ActiveLow:0) [ 5.084077][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 5.098235][ T0] IOAPIC[0]: Preconfigured routing entry (8-8 -> IRQ 8 Level:0 ActiveLow:0) [ 5.106767][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 5.120923][ T0] IOAPIC[0]: Preconfigured routing entry (8-9 -> IRQ 9 Level:1 ActiveLow:0) [ 5.129457][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 5.143610][ T0] IOAPIC[0]: Preconfigured routing entry (8-10 -> IRQ 10 Level:0 ActiveLow:0) [ 5.152320][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 5.166481][ T0] IOAPIC[0]: Preconfigured routing entry (8-11 -> IRQ 11 Level:0 ActiveLow:0) [ 5.175188][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 5.189344][ T0] IOAPIC[0]: Preconfigured routing entry (8-12 -> IRQ 12 Level:0 ActiveLow:0) [ 5.198049][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 5.212203][ T0] IOAPIC[0]: Preconfigured routing entry (8-13 -> IRQ 13 Level:0 ActiveLow:0) [ 5.220912][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 5.235066][ T0] IOAPIC[0]: Preconfigured routing entry (8-14 -> IRQ 14 Level:0 ActiveLow:0) [ 5.243770][ T0] IOAPIC[8]: Set IRTE entry (P:1 FPD:0 Dst_Mode:0 Redir_hint:1 Trig_Mode:0 Dlvry_Mode:0 Avail:0 Vector:EF Dest:00000000 SID:F0FF SQ:0 SVT:1) [ 5.257926][ T0] IOAPIC[0]: Preconfigured routing entry (8-15 -> IRQ 15 Level:0 ActiveLow:0) [ 5.266620][ T0] apic 8 pin 16 not connected [ 5.271234][ T0] apic 8 pin 17 not connected [ 5.275846][ T0] apic 8 pin 18 not connected [ 5.280465][ T0] apic 8 pin 19 not connected [ 5.285084][ T0] apic 8 pin 20 not connected [ 5.289694][ T0] apic 8 pin 21 not connected [ 5.294313][ T0] apic 8 pin 22 not connected [ 5.298924][ T0] apic 8 pin 23 not connected [ 5.303543][ T0] apic 9 pin 0 not connected [ 5.308076][ T0] apic 9 pin 1 not connected [ 5.312607][ T0] apic 9 pin 2 not connected [ 5.317133][ T0] apic 9 pin 3 not connected [ 5.321664][ T0] apic 9 pin 4 not connected [ 5.326197][ T0] apic 9 pin 5 not connected [ 5.330728][ T0] apic 9 pin 6 not connected [ 5.335254][ T0] apic 9 pin 7 not connected [ 5.339785][ T0] apic 9 pin 8 not connected [ 5.344308][ T0] apic 9 pin 9 not connected [ 5.348833][ T0] apic 9 pin 10 not connected [ 5.353451][ T0] apic 9 pin 11 not connected [ 5.358062][ T0] apic 9 pin 12 not connected [ 5.362672][ T0] apic 9 pin 13 not connected [ 5.367283][ T0] apic 9 pin 14 not connected [ 5.371902][ T0] apic 9 pin 15 not connected To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests sudo bin/lkp install job.yaml # job file is attached in this email bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run sudo bin/lkp run generated-yaml-file # 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