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Apr 2024 03:18:50 +0000 Date: Fri, 12 Apr 2024 11:18:41 +0800 From: kernel test robot To: Barry Song CC: , , Linux Memory Management List , Andrew Morton , Yujie Liu , , Subject: [linux-next:master] [mm] cf5dec6389: WARNING:at_arch/x86/mm/fault.c:#do_user_addr_fault Message-ID: <202404121129.c53d5406-oliver.sang@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-ClientProxiedBy: SG2PR03CA0114.apcprd03.prod.outlook.com (2603:1096:4:91::18) To LV3PR11MB8603.namprd11.prod.outlook.com (2603:10b6:408:1b6::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV3PR11MB8603:EE_|BL1PR11MB5953:EE_ X-MS-Office365-Filtering-Correlation-Id: 8fa95446-d9dd-4ce6-7c97-08dc5a9f45cb X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, kernel test robot noticed "WARNING:at_arch/x86/mm/fault.c:#do_user_addr_fault" on: commit: cf5dec6389f307a43c6c494660e28f16c7e0265a ("mm: fix powerpc build issue") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master [test failed on linux-next/master a053fd3ca5d1b927a8655f239c84b0d790218fda] in testcase: boot compiler: clang-17 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) +----------------------------------------------------+------------+------------+ | | d9130022ad | cf5dec6389 | +----------------------------------------------------+------------+------------+ | WARNING:at_arch/x86/mm/fault.c:#do_user_addr_fault | 0 | 6 | | EIP:do_user_addr_fault | 0 | 6 | | EIP:string | 0 | 6 | | BUG:unable_to_handle_page_fault_for_address | 0 | 6 | | Oops:#[##] | 0 | 6 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 6 | +----------------------------------------------------+------------+------------+ If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202404121129.c53d5406-oliver.sang@intel.com [ 122.507941][ T251] ------------[ cut here ]------------ [ 122.508786][ T251] ------------[ cut here ]------------ [ 122.509528][ T251] WARNING: CPU: 1 PID: 251 at arch/x86/mm/fault.c:1308 do_user_addr_fault (arch/x86/mm/fault.c:1308) [ 122.510801][ T251] Modules linked in: crc32_pclmul aesni_intel crypto_simd evdev drm drm_panel_orientation_quirks firmware_class zstd_decompress zstd_common autofs4 [ 122.512743][ T251] CPU: 1 PID: 251 Comm: dpkg-deb Tainted: G W N 6.9.0-rc2-00330-gcf5dec6389f3 #1 [ 122.514132][ T251] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 122.515462][ T251] EIP: do_user_addr_fault (arch/x86/mm/fault.c:1308) [ 122.516186][ T251] Code: 03 00 00 83 c4 04 e9 ba fd ff ff 0f 0b e9 b3 fd ff ff 89 f9 89 da 56 e8 ff 06 00 00 8b 55 e8 8b 4d e4 83 c4 04 e9 c8 fc ff ff <0f> 0b 89 f9 89 da 56 e8 b5 00 00 00 83 c4 04 e9 87 fd ff ff 8b 45 All code ======== 0: 03 00 add (%rax),%eax 2: 00 83 c4 04 e9 ba add %al,-0x4516fb3c(%rbx) 8: fd std 9: ff (bad) a: ff 0f decl (%rdi) c: 0b e9 or %ecx,%ebp e: b3 fd mov $0xfd,%bl 10: ff (bad) 11: ff 89 f9 89 da 56 decl 0x56da89f9(%rcx) 17: e8 ff 06 00 00 call 0x71b 1c: 8b 55 e8 mov -0x18(%rbp),%edx 1f: 8b 4d e4 mov -0x1c(%rbp),%ecx 22: 83 c4 04 add $0x4,%esp 25: e9 c8 fc ff ff jmp 0xfffffffffffffcf2 2a:* 0f 0b ud2 <-- trapping instruction 2c: 89 f9 mov %edi,%ecx 2e: 89 da mov %ebx,%edx 30: 56 push %rsi 31: e8 b5 00 00 00 call 0xeb 36: 83 c4 04 add $0x4,%esp 39: e9 87 fd ff ff jmp 0xfffffffffffffdc5 3e: 8b .byte 0x8b 3f: 45 rex.RB Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 89 f9 mov %edi,%ecx 4: 89 da mov %ebx,%edx 6: 56 push %rsi 7: e8 b5 00 00 00 call 0xc1 c: 83 c4 04 add $0x4,%esp f: e9 87 fd ff ff jmp 0xfffffffffffffd9b 14: 8b .byte 0x8b 15: 45 rex.RB [ 122.518827][ T251] EAX: 80000000 EBX: 00000000 ECX: ecd11e00 EDX: eceaf3c0 [ 122.519822][ T251] ESI: 80000040 EDI: ecf11cdc EBP: ecf11cb8 ESP: ecf11c8c [ 122.520643][ T251] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 00010046 [ 122.521539][ T251] CR0: 80050033 CR2: 80000040 CR3: 2cc98000 CR4: 00040690 [ 122.522448][ T251] Call Trace: [ 122.522885][ T251] ? show_regs (arch/x86/kernel/dumpstack.c:478) [ 122.523435][ T251] ? __warn (kernel/panic.c:240 kernel/panic.c:694) [ 122.523958][ T251] ? do_user_addr_fault (arch/x86/mm/fault.c:1308) [ 122.524553][ T251] ? report_bug (lib/bug.c:199) [ 122.525103][ T251] ? exc_overflow (arch/x86/kernel/traps.c:252) [ 122.525624][ T251] ? handle_bug (arch/x86/kernel/traps.c:239) [ 122.526180][ T251] ? exc_invalid_op (arch/x86/kernel/traps.c:260) [ 122.526753][ T251] ? handle_exception (arch/x86/entry/entry_32.S:1054) [ 122.527347][ T251] ? xas_create_range (lib/xarray.c:729) [ 122.527986][ T251] ? xas_create_range (lib/xarray.c:729) [ 122.528578][ T251] ? exc_overflow (arch/x86/kernel/traps.c:252) [ 122.529134][ T251] ? do_user_addr_fault (arch/x86/mm/fault.c:1308) [ 122.529801][ T251] ? exc_overflow (arch/x86/kernel/traps.c:252) [ 122.530345][ T251] ? do_user_addr_fault (arch/x86/mm/fault.c:1308) [ 122.530992][ T251] ? __this_cpu_preempt_check (lib/smp_processor_id.c:67) [ 122.531680][ T251] exc_page_fault (arch/x86/include/asm/irqflags.h:19 arch/x86/include/asm/irqflags.h:67 arch/x86/include/asm/irqflags.h:127 arch/x86/mm/fault.c:1519 arch/x86/mm/fault.c:1569) [ 122.532252][ T251] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1524) [ 122.533061][ T251] handle_exception (arch/x86/entry/entry_32.S:1054) [ 122.533679][ T251] EIP: string (lib/vsprintf.c:646) [ 122.534266][ T251] Code: 54 24 04 85 f6 75 4b 31 f6 eb 79 89 04 24 89 54 24 04 c1 fa 10 74 78 31 ff eb 0c 90 90 90 90 90 90 90 47 39 fa 74 6e 8d 34 39 <0f> b6 04 3b 84 c0 74 69 3b 74 24 08 73 ea 88 06 eb e6 89 c6 0f b7 All code ======== 0: 54 push %rsp 1: 24 04 and $0x4,%al 3: 85 f6 test %esi,%esi 5: 75 4b jne 0x52 7: 31 f6 xor %esi,%esi 9: eb 79 jmp 0x84 b: 89 04 24 mov %eax,(%rsp) e: 89 54 24 04 mov %edx,0x4(%rsp) 12: c1 fa 10 sar $0x10,%edx 15: 74 78 je 0x8f 17: 31 ff xor %edi,%edi 19: eb 0c jmp 0x27 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 47 39 fa rex.RXB cmp %r15d,%r10d 25: 74 6e je 0x95 27: 8d 34 39 lea (%rcx,%rdi,1),%esi 2a:* 0f b6 04 3b movzbl (%rbx,%rdi,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 74 69 je 0x9b 32: 3b 74 24 08 cmp 0x8(%rsp),%esi 36: 73 ea jae 0x22 38: 88 06 mov %al,(%rsi) 3a: eb e6 jmp 0x22 3c: 89 c6 mov %eax,%esi 3e: 0f .byte 0xf 3f: b7 .byte 0xb7 Code starting with the faulting instruction =========================================== 0: 0f b6 04 3b movzbl (%rbx,%rdi,1),%eax 4: 84 c0 test %al,%al 6: 74 69 je 0x71 8: 3b 74 24 08 cmp 0x8(%rsp),%esi c: 73 ea jae 0xfffffffffffffff8 e: 88 06 mov %al,(%rsi) 10: eb e6 jmp 0xfffffffffffffff8 12: 89 c6 mov %eax,%esi 14: 0f .byte 0xf 15: b7 .byte 0xb7 The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240412/202404121129.c53d5406-oliver.sang@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki