Hello,
kernel test robot noticed "kernel_BUG_at_arch/x86/mm/physaddr.c" on:
commit: f28b14e8a99199dd7a5a22c621168f9c8788352a ("[PATCH] mm: Skip the reserved bootmem for compaction")
url: https://github.com/intel-lab-lkp/linux/commits/Rong-Qianfeng/mm-Skip-the-reserved-bootmem-for-compaction/20240902-202706
base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/all/20240902122445.11805-1-rongqianfeng@xxxxxxxx/
patch subject: [PATCH] mm: Skip the reserved bootmem for compaction
in testcase: boot
compiler: clang-18
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
+------------------------------------------+------------+------------+
| | b69256811d | f28b14e8a9 |
+------------------------------------------+------------+------------+
| boot_successes | 12 | 0 |
| boot_failures | 0 | 12 |
| kernel_BUG_at_arch/x86/mm/physaddr.c | 0 | 12 |
| Oops:invalid_opcode:#[##]PREEMPT_SMP | 0 | 12 |
| EIP:__phys_addr | 0 | 12 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 12 |
+------------------------------------------+------------+------------+
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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202409042247.af2035c5-lkp@xxxxxxxxx
[ 7.664934][ T32] ------------[ cut here ]------------
[ 7.665373][ T32] kernel BUG at arch/x86/mm/physaddr.c:81!
[ 7.665816][ T32] Oops: invalid opcode: 0000 [#1] PREEMPT SMP
[ 7.666289][ T32] CPU: 1 UID: 0 PID: 32 Comm: kworker/u10:1 Not tainted 6.11.0-rc6-00524-gf28b14e8a991 #1
[ 7.667024][ T32] Workqueue: async async_run_entry_fn
[ 7.667427][ T32] EIP: __phys_addr (arch/x86/mm/physaddr.c:81)
[ 7.667767][ T32] Code: 5e 5f 5d 31 c9 c3 0f 0b 68 18 6c f9 c1 e8 5a 69 4f 00 0f 0b 68 28 6c f9 c1 e8 4e 69 4f 00 0f 0b 68 38 6c f9 c1 e8 42 69 4f 00 <0f> 0b 68 48 6c f9 c1 e8 36 69 4f 00 90 90 90 90 90 90 3d 00 00 00
All code
========
0: 5e pop %rsi
1: 5f pop %rdi
2: 5d pop %rbp
3: 31 c9 xor %ecx,%ecx
5: c3 ret
6: 0f 0b ud2
8: 68 18 6c f9 c1 push $0xffffffffc1f96c18
d: e8 5a 69 4f 00 call 0x4f696c
12: 0f 0b ud2
14: 68 28 6c f9 c1 push $0xffffffffc1f96c28
19: e8 4e 69 4f 00 call 0x4f696c
1e: 0f 0b ud2
20: 68 38 6c f9 c1 push $0xffffffffc1f96c38
25: e8 42 69 4f 00 call 0x4f696c
2a:* 0f 0b ud2 <-- trapping instruction
2c: 68 48 6c f9 c1 push $0xffffffffc1f96c48
31: e8 36 69 4f 00 call 0x4f696c
36: 90 nop
37: 90 nop
38: 90 nop
39: 90 nop
3a: 90 nop
3b: 90 nop
3c: 3d .byte 0x3d
3d: 00 00 add %al,(%rax)
...
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 68 48 6c f9 c1 push $0xffffffffc1f96c48
7: e8 36 69 4f 00 call 0x4f6942
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
10: 90 nop
11: 90 nop
12: 3d .byte 0x3d
13: 00 00 add %al,(%rax)
...
[ 7.669203][ T32] EAX: 00000000 EBX: 0000fd5f ECX: 00000000 EDX: 00000000
[ 7.669353][ T32] ESI: 2e7fe000 EDI: ee7fe000 EBP: c3223e74 ESP: c3223e6c
[ 7.669353][ T32] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010287
[ 7.669353][ T32] CR0: 80050033 CR2: 00000000 CR3: 02617000 CR4: 00040690
[ 7.669353][ T32] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 7.669353][ T32] DR6: fffe0ff0 DR7: 00000400
[ 7.669353][ T32] Call Trace:
[ 7.669353][ T32] ? __die_body (arch/x86/kernel/dumpstack.c:478 arch/x86/kernel/dumpstack.c:420)
[ 7.669353][ T32] ? die (arch/x86/kernel/dumpstack.c:? arch/x86/kernel/dumpstack.c:447)
[ 7.669353][ T32] ? do_trap (arch/x86/kernel/traps.c:? arch/x86/kernel/traps.c:155)
[ 7.669353][ T32] ? do_error_trap (arch/x86/kernel/traps.c:175)
[ 7.669353][ T32] ? __phys_addr (arch/x86/mm/physaddr.c:81)
[ 7.669353][ T32] ? exc_overflow (arch/x86/kernel/traps.c:252)
[ 7.669353][ T32] ? handle_invalid_op (arch/x86/kernel/traps.c:212)
[ 7.669353][ T32] ? __phys_addr (arch/x86/mm/physaddr.c:81)
[ 7.669353][ T32] ? exc_invalid_op (arch/x86/kernel/traps.c:267)
[ 7.669353][ T32] ? handle_exception (arch/x86/entry/entry_32.S:1047)
[ 7.669353][ T32] ? exc_overflow (arch/x86/kernel/traps.c:252)
[ 7.669353][ T32] ? __phys_addr (arch/x86/mm/physaddr.c:81)
[ 7.669353][ T32] ? exc_overflow (arch/x86/kernel/traps.c:252)
[ 7.669353][ T32] ? __phys_addr (arch/x86/mm/physaddr.c:81)
[ 7.669353][ T32] free_reserved_area (mm/page_alloc.c:5895)
[ 7.669353][ T32] free_init_pages (arch/x86/mm/init.c:927)
[ 7.669353][ T32] ? populate_rootfs (init/initramfs.c:691)
[ 7.669353][ T32] free_initrd_mem (arch/x86/mm/init.c:987)
[ 7.669353][ T32] do_populate_rootfs (init/initramfs.c:?)
[ 7.669353][ T32] async_run_entry_fn (kernel/async.c:136)
[ 7.669353][ T32] process_one_work (kernel/workqueue.c:3236)
[ 7.669353][ T32] worker_thread (kernel/workqueue.c:3306 kernel/workqueue.c:3389)
[ 7.669353][ T32] kthread (kernel/kthread.c:391)
[ 7.669353][ T32] ? pr_cont_work (kernel/workqueue.c:3339)
[ 7.669353][ T32] ? kthread_unuse_mm (kernel/kthread.c:342)
[ 7.669353][ T32] ret_from_fork (arch/x86/kernel/process.c:153)
[ 7.669353][ T32] ret_from_fork_asm (arch/x86/entry/entry_32.S:737)
[ 7.669353][ T32] entry_INT80_32 (arch/x86/entry/entry_32.S:944)
[ 7.669353][ T32] Modules linked in:
[ 7.683090][ T32] ---[ end trace 0000000000000000 ]---
[ 7.683500][ T32] EIP: __phys_addr (arch/x86/mm/physaddr.c:81)
[ 7.683844][ T32] Code: 5e 5f 5d 31 c9 c3 0f 0b 68 18 6c f9 c1 e8 5a 69 4f 00 0f 0b 68 28 6c f9 c1 e8 4e 69 4f 00 0f 0b 68 38 6c f9 c1 e8 42 69 4f 00 <0f> 0b 68 48 6c f9 c1 e8 36 69 4f 00 90 90 90 90 90 90 3d 00 00 00
All code
========
0: 5e pop %rsi
1: 5f pop %rdi
2: 5d pop %rbp
3: 31 c9 xor %ecx,%ecx
5: c3 ret
6: 0f 0b ud2
8: 68 18 6c f9 c1 push $0xffffffffc1f96c18
d: e8 5a 69 4f 00 call 0x4f696c
12: 0f 0b ud2
14: 68 28 6c f9 c1 push $0xffffffffc1f96c28
19: e8 4e 69 4f 00 call 0x4f696c
1e: 0f 0b ud2
20: 68 38 6c f9 c1 push $0xffffffffc1f96c38
25: e8 42 69 4f 00 call 0x4f696c
2a:* 0f 0b ud2 <-- trapping instruction
2c: 68 48 6c f9 c1 push $0xffffffffc1f96c48
31: e8 36 69 4f 00 call 0x4f696c
36: 90 nop
37: 90 nop
38: 90 nop
39: 90 nop
3a: 90 nop
3b: 90 nop
3c: 3d .byte 0x3d
3d: 00 00 add %al,(%rax)
...
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 68 48 6c f9 c1 push $0xffffffffc1f96c48
7: e8 36 69 4f 00 call 0x4f6942
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
10: 90 nop
11: 90 nop
12: 3d .byte 0x3d
13: 00 00 add %al,(%rax)
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240904/202409042247.af2035c5-lkp@xxxxxxxxx
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
