From: kernel test robot <oliver.sang@intel.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: <oe-lkp@lists.linux.dev>, <lkp@intel.com>,
Mike Rapoport <rppt@kernel.org>, <oliver.sang@intel.com>
Subject: [rppt:free-late/v0.3] [memblock] 9ba8a144ce: kernel_BUG_at_arch/x86/mm/physaddr.c
Date: Tue, 10 Mar 2026 14:24:50 +0800 [thread overview]
Message-ID: <202603101424.47c2dbe7-lkp@intel.com> (raw)
Hello,
kernel test robot noticed "kernel_BUG_at_arch/x86/mm/physaddr.c" on:
commit: 9ba8a144ce025146410dbf26bae89396154815c0 ("memblock: make free_reserved_area() more robust")
https://git.kernel.org/cgit/linux/kernel/git/rppt/linux.git free-late/v0.3
in testcase: boot
config: i386-randconfig-014-20260309
compiler: gcc-14
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 32G
(please refer to attached dmesg/kmsg for entire log/backtrace)
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 <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202603101424.47c2dbe7-lkp@intel.com
[ 6.514860][ T26] ------------[ cut here ]------------
[ 6.517404][ T26] kernel BUG at arch/x86/mm/physaddr.c:70!
[ 6.518760][ T26] Oops: invalid opcode: 0000 [#1] SMP
[ 6.520109][ T26] CPU: 1 UID: 0 PID: 26 Comm: kworker/u10:0 Not tainted 7.0.0-rc1-00004-g9ba8a144ce02 #1 PREEMPTLAZY
[ 6.522037][ T26] Workqueue: async async_run_entry_fn
[ 6.522037][ T26] EIP: __phys_addr (arch/x86/mm/physaddr.c:70 (discriminator 1))
[ 6.522037][ T26] Code: f0 75 27 89 f0 5b 5e 5d c3 0f 0b b8 1c 96 e0 d1 e8 00 fe ee ff e8 6f d9 2b 00 84 c0 74 c8 0f 0b b8 10 96 e0 d1 e8 eb fd ee ff <0f> 0b b8 f8 95 e0 d1 e8 df fd ee ff 0f 0b b8 04 96 e0 d1 e8 d3 fd
All code
========
0: f0 75 27 lock jne 0x2a
3: 89 f0 mov %esi,%eax
5: 5b pop %rbx
6: 5e pop %rsi
7: 5d pop %rbp
8: c3 ret
9: 0f 0b ud2
b: b8 1c 96 e0 d1 mov $0xd1e0961c,%eax
10: e8 00 fe ee ff call 0xffffffffffeefe15
15: e8 6f d9 2b 00 call 0x2bd989
1a: 84 c0 test %al,%al
1c: 74 c8 je 0xffffffffffffffe6
1e: 0f 0b ud2
20: b8 10 96 e0 d1 mov $0xd1e09610,%eax
25: e8 eb fd ee ff call 0xffffffffffeefe15
2a:* 0f 0b ud2 <-- trapping instruction
2c: b8 f8 95 e0 d1 mov $0xd1e095f8,%eax
31: e8 df fd ee ff call 0xffffffffffeefe15
36: 0f 0b ud2
38: b8 04 96 e0 d1 mov $0xd1e09604,%eax
3d: e8 .byte 0xe8
3e: d3 fd sar %cl,%ebp
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: b8 f8 95 e0 d1 mov $0xd1e095f8,%eax
7: e8 df fd ee ff call 0xffffffffffeefdeb
c: 0f 0b ud2
e: b8 04 96 e0 d1 mov $0xd1e09604,%eax
13: e8 .byte 0xe8
14: d3 fd sar %cl,%ebp
[ 6.522037][ T26] EAX: 00000000 EBX: f6ffe000 ECX: 00000000 EDX: d2438f6c
[ 6.522037][ T26] ESI: 36ffe000 EDI: f6ffe000 EBP: c080fe60 ESP: c080fe58
[ 6.522037][ T26] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010287
[ 6.522037][ T26] CR0: 80050033 CR2: 00000000 CR3: 12438000 CR4: 00040690
[ 6.522037][ T26] Call Trace:
[ 6.522037][ T26] free_reserved_area (mm/memblock.c:909)
[ 6.522037][ T26] ? set_memory_rw (arch/x86/mm/pat/set_memory.c:2321)
[ 6.522037][ T26] free_init_pages (arch/x86/mm/init.c:939)
[ 6.522037][ T26] free_initrd_mem (arch/x86/mm/init.c:996)
[ 6.522037][ T26] do_populate_rootfs (init/initramfs.c:750)
[ 6.522037][ T26] async_run_entry_fn (kernel/async.c:136 (discriminator 1))
[ 6.522037][ T26] ? debug_smp_processor_id (lib/smp_processor_id.c:59)
[ 6.522037][ T26] process_one_work (arch/x86/include/asm/atomic.h:23 include/linux/atomic/atomic-arch-fallback.h:457 include/linux/jump_label.h:262 include/trace/events/workqueue.h:110 kernel/workqueue.c:3280)
[ 6.522037][ T26] ? process_one_work (kernel/workqueue.c:3251)
[ 6.522037][ T26] worker_thread (kernel/workqueue.c:3352 (discriminator 2) kernel/workqueue.c:3439 (discriminator 2))
[ 6.522037][ T26] kthread (kernel/kthread.c:467)
[ 6.522037][ T26] ? rescuer_thread (kernel/workqueue.c:3385)
[ 6.522037][ T26] ? kthread_affine_node (kernel/kthread.c:412)
[ 6.522037][ T26] ret_from_fork (arch/x86/kernel/process.c:164)
[ 6.522037][ T26] ? kthread_affine_node (kernel/kthread.c:412)
[ 6.522037][ T26] ret_from_fork_asm (arch/x86/entry/entry_32.S:737)
[ 6.522037][ T26] entry_INT80_32 (arch/x86/entry/entry_32.S:945)
[ 6.522037][ T26] Modules linked in:
[ 6.558024][ T26] ---[ end trace 0000000000000000 ]---
[ 6.559399][ T26] EIP: __phys_addr (arch/x86/mm/physaddr.c:70 (discriminator 1))
[ 6.560632][ T26] Code: f0 75 27 89 f0 5b 5e 5d c3 0f 0b b8 1c 96 e0 d1 e8 00 fe ee ff e8 6f d9 2b 00 84 c0 74 c8 0f 0b b8 10 96 e0 d1 e8 eb fd ee ff <0f> 0b b8 f8 95 e0 d1 e8 df fd ee ff 0f 0b b8 04 96 e0 d1 e8 d3 fd
All code
========
0: f0 75 27 lock jne 0x2a
3: 89 f0 mov %esi,%eax
5: 5b pop %rbx
6: 5e pop %rsi
7: 5d pop %rbp
8: c3 ret
9: 0f 0b ud2
b: b8 1c 96 e0 d1 mov $0xd1e0961c,%eax
10: e8 00 fe ee ff call 0xffffffffffeefe15
15: e8 6f d9 2b 00 call 0x2bd989
1a: 84 c0 test %al,%al
1c: 74 c8 je 0xffffffffffffffe6
1e: 0f 0b ud2
20: b8 10 96 e0 d1 mov $0xd1e09610,%eax
25: e8 eb fd ee ff call 0xffffffffffeefe15
2a:* 0f 0b ud2 <-- trapping instruction
2c: b8 f8 95 e0 d1 mov $0xd1e095f8,%eax
31: e8 df fd ee ff call 0xffffffffffeefe15
36: 0f 0b ud2
38: b8 04 96 e0 d1 mov $0xd1e09604,%eax
3d: e8 .byte 0xe8
3e: d3 fd sar %cl,%ebp
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: b8 f8 95 e0 d1 mov $0xd1e095f8,%eax
7: e8 df fd ee ff call 0xffffffffffeefdeb
c: 0f 0b ud2
e: b8 04 96 e0 d1 mov $0xd1e09604,%eax
13: e8 .byte 0xe8
14: d3 fd sar %cl,%ebp
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260310/202603101424.47c2dbe7-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2026-03-10 6:25 UTC|newest]
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