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From: kernel test robot <oliver.sang@intel.com>
To: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: <oe-lkp@lists.linux.dev>, <lkp@intel.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Al Viro <viro@zeniv.linux.org.uk>,
	"Christian Brauner" <brauner@kernel.org>,
	David Hildenbrand <david@redhat.com>, Jan Kara <jack@suse.cz>,
	Jann Horn <jannh@google.com>,
	Liam Howlett <liam.howlett@oracle.com>,
	Matthew Wilcox <willy@infradead.org>,
	Michal Hocko <mhocko@suse.com>, Mike Rapoport <rppt@kernel.org>,
	Suren Baghdasaryan <surenb@google.com>,
	Vlastimil Babka <vbabka@suse.cz>, <linux-fsdevel@vger.kernel.org>,
	<linux-mm@kvack.org>, <oliver.sang@intel.com>
Subject: [linux-next:master] [mm]  54fc2b6358: WARNING:at_include/linux/fs.h:#file_has_valid_mmap_hooks
Date: Wed, 14 May 2025 15:38:57 +0800	[thread overview]
Message-ID: <202505141434.96ce5e5d-lkp@intel.com> (raw)



Hello,

kernel test robot noticed "WARNING:at_include/linux/fs.h:#file_has_valid_mmap_hooks" on:

commit: 54fc2b63585940cce17810a9ef5d273087b0939e ("mm: introduce new .mmap_prepare() file callback")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

[test failed on linux-next/master edef457004774e598fc4c1b7d1d4f0bcd9d0bb30]

in testcase: trinity
version: trinity-i386-abe9de86-1_20230429
with following parameters:

	runtime: 300s
	group: group-00
	nr_groups: 5



config: i386-randconfig-141-20250512
compiler: clang-20
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G

(please refer to attached dmesg/kmsg for entire log/backtrace)


+----------------------------------------------------------+------------+------------+
|                                                          | 7661dba205 | 54fc2b6358 |
+----------------------------------------------------------+------------+------------+
| WARNING:at_include/linux/fs.h:#file_has_valid_mmap_hooks | 0          | 12         |
| EIP:file_has_valid_mmap_hooks                            | 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@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202505141434.96ce5e5d-lkp@intel.com


[   81.501132][ T3731] ------------[ cut here ]------------
[ 81.502015][ T3731] WARNING: CPU: 0 PID: 3731 at include/linux/fs.h:2251 file_has_valid_mmap_hooks (kbuild/obj/consumer/i386-randconfig-141-20250512/include/linux/fs.h:2251 (discriminator 14)) 
[   81.503344][ T3731] Modules linked in:
[   81.503951][ T3731] CPU: 0 UID: 65534 PID: 3731 Comm: trinity-c1 Not tainted 6.15.0-rc5-00294-g54fc2b635859 #1 PREEMPT(lazy)
[ 81.505454][ T3731] EIP: file_has_valid_mmap_hooks (kbuild/obj/consumer/i386-randconfig-141-20250512/include/linux/fs.h:2251 (discriminator 14)) 
[ 81.506235][ T3731] Code: 8b 48 30 8b 90 84 00 00 00 85 c9 0f 95 c0 85 d2 0f 95 c4 20 c4 80 fc 01 74 0c b0 01 09 d1 74 0a 5d 31 c9 31 d2 c3 0f 0b eb 02 <0f> 0b 31 c0 eb f0 90 90 90 90 90 90 90 90 90 90 3e 8d 74 26 00 55
All code
========
   0:	8b 48 30             	mov    0x30(%rax),%ecx
   3:	8b 90 84 00 00 00    	mov    0x84(%rax),%edx
   9:	85 c9                	test   %ecx,%ecx
   b:	0f 95 c0             	setne  %al
   e:	85 d2                	test   %edx,%edx
  10:	0f 95 c4             	setne  %ah
  13:	20 c4                	and    %al,%ah
  15:	80 fc 01             	cmp    $0x1,%ah
  18:	74 0c                	je     0x26
  1a:	b0 01                	mov    $0x1,%al
  1c:	09 d1                	or     %edx,%ecx
  1e:	74 0a                	je     0x2a
  20:	5d                   	pop    %rbp
  21:	31 c9                	xor    %ecx,%ecx
  23:	31 d2                	xor    %edx,%edx
  25:	c3                   	ret
  26:	0f 0b                	ud2
  28:	eb 02                	jmp    0x2c
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	31 c0                	xor    %eax,%eax
  2e:	eb f0                	jmp    0x20
  30:	90                   	nop
  31:	90                   	nop
  32:	90                   	nop
  33:	90                   	nop
  34:	90                   	nop
  35:	90                   	nop
  36:	90                   	nop
  37:	90                   	nop
  38:	90                   	nop
  39:	90                   	nop
  3a:	3e 8d 74 26 00       	ds lea 0x0(%rsi,%riz,1),%esi
  3f:	55                   	push   %rbp

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	31 c0                	xor    %eax,%eax
   4:	eb f0                	jmp    0xfffffffffffffff6
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	3e 8d 74 26 00       	ds lea 0x0(%rsi,%riz,1),%esi
  15:	55                   	push   %rbp
[   81.508815][ T3731] EAX: d1880001 EBX: fffffff3 ECX: 00000000 EDX: 00000000
[   81.509606][ T3731] ESI: ebd21c00 EDI: 00000001 EBP: ee6fbebc ESP: ee6fbebc
[   81.510420][ T3731] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 EFLAGS: 00010246
[   81.511506][ T3731] CR0: 80050033 CR2: 042df000 CR3: 2e7c0000 CR4: 00040690
[   81.512398][ T3731] Call Trace:
[ 81.512840][ T3731] do_mmap (kbuild/obj/consumer/i386-randconfig-141-20250512/mm/mmap.c:?) 
[ 81.513390][ T3731] vm_mmap_pgoff (kbuild/obj/consumer/i386-randconfig-141-20250512/mm/util.c:579) 
[ 81.513966][ T3731] __ia32_sys_mmap_pgoff (kbuild/obj/consumer/i386-randconfig-141-20250512/mm/mmap.c:607 (discriminator 256)) 
[ 81.514625][ T3731] ia32_sys_call (kbuild/obj/consumer/i386-randconfig-141-20250512/./arch/x86/include/generated/asm/syscalls_32.h:318 (discriminator 201523200)) 
[ 81.515267][ T3731] __do_fast_syscall_32 (kbuild/obj/consumer/i386-randconfig-141-20250512/arch/x86/entry/syscall_32.c:?) 
[ 81.515980][ T3731] do_fast_syscall_32 (kbuild/obj/consumer/i386-randconfig-141-20250512/arch/x86/entry/syscall_32.c:331) 
[ 81.516686][ T3731] do_SYSENTER_32 (kbuild/obj/consumer/i386-randconfig-141-20250512/arch/x86/entry/syscall_32.c:369) 
[ 81.517325][ T3731] entry_SYSENTER_32 (kbuild/obj/consumer/i386-randconfig-141-20250512/arch/x86/entry/entry_32.S:836) 
[   81.517972][ T3731] EIP: 0xb7f71539
[ 81.518452][ T3731] Code: 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 58 b8 77 00 00 00 cd 80 90 90 90
All code
========
   0:	03 74 b4 01          	add    0x1(%rsp,%rsi,4),%esi
   4:	10 07                	adc    %al,(%rdi)
   6:	03 74 b0 01          	add    0x1(%rax,%rsi,4),%esi
   a:	10 08                	adc    %cl,(%rax)
   c:	03 74 d8 01          	add    0x1(%rax,%rbx,8),%esi
	...
  20:	00 51 52             	add    %dl,0x52(%rcx)
  23:*	55                   	push   %rbp		<-- trapping instruction
  24:	89 e5                	mov    %esp,%ebp
  26:	0f 34                	sysenter
  28:	cd 80                	int    $0x80
  2a:	5d                   	pop    %rbp
  2b:	5a                   	pop    %rdx
  2c:	59                   	pop    %rcx
  2d:	c3                   	ret
  2e:	90                   	nop
  2f:	90                   	nop
  30:	90                   	nop
  31:	90                   	nop
  32:	90                   	nop
  33:	90                   	nop
  34:	90                   	nop
  35:	58                   	pop    %rax
  36:	b8 77 00 00 00       	mov    $0x77,%eax
  3b:	cd 80                	int    $0x80
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	5d                   	pop    %rbp
   1:	5a                   	pop    %rdx
   2:	59                   	pop    %rcx
   3:	c3                   	ret
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	58                   	pop    %rax
   c:	b8 77 00 00 00       	mov    $0x77,%eax
  11:	cd 80                	int    $0x80
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250514/202505141434.96ce5e5d-lkp@intel.com



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki



             reply	other threads:[~2025-05-14  7:39 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-14  7:38 kernel test robot [this message]
2025-05-14  8:21 ` [linux-next:master] [mm] 54fc2b6358: WARNING:at_include/linux/fs.h:#file_has_valid_mmap_hooks Lorenzo Stoakes

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