ci2 starts bisection 2023-02-08 20:17:34.480769804 +0000 UTC m=+22677.422063954
bisecting fixing commit since 1fe4fd6f5cad346e598593af36caeadc4f5d4fa9
building syzkaller on 1dac8c7a01e2bdd35cb04eb4901ddb157291ac2d
ensuring issue is reproducible on original commit 1fe4fd6f5cad346e598593af36caeadc4f5d4fa9

testing commit 1fe4fd6f5cad346e598593af36caeadc4f5d4fa9 gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: b12398dfded3806960cf9af6109a451e22e835f05a0c6a24d1bf4294ec4fa114
all runs: crashed: WARNING in invalidate_bh_lru
testing current HEAD 0983f6bf2bfc0789b51ddf7315f644ff4da50acb
testing commit 0983f6bf2bfc0789b51ddf7315f644ff4da50acb gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 5e63f361834db9a13a92cf196876fbda63f51ab360264ff4d0066d7ae4553185
all runs: crashed: WARNING in invalidate_bh_lru
revisions tested: 2, total time: 46m45.486769628s (build: 38m28.933367304s, test: 6m26.628750997s)
the crash still happens on HEAD
commit msg: Merge tag 'devicetree-fixes-for-6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
crash: WARNING in invalidate_bh_lru
------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 1 PID: 5615 at fs/buffer.c:1145 invalidate_bh_lru+0xf6/0x160
Modules linked in:
CPU: 1 PID: 5615 Comm: dhcpcd-run-hook Not tainted 6.2.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:invalidate_bh_lru+0xf6/0x160
Code: 50 07 e6 ff f0 41 ff 4d 00 42 80 7c 3d 00 00 74 81 4c 89 f7 e8 fb 05 e6 ff e9 74 ff ff ff 48 c7 c7 00 84 d7 89 e8 1a 4f 6e ff <0f> 0b 42 80 7c 3d 00 00 75 dd e9 59 ff ff ff 44 89 e9 80 e1 07 80
RSP: 0018:ffffc900001e0f38 EFLAGS: 00010046
RAX: 4497fafb152b9e00 RBX: 0000000000000008 RCX: 0000000000010002
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000001
RBP: 1ffff110173a6e10 R08: dffffc0000000000 R09: ffffed10173a515b
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b9d37078
R13: ffff888072f9db40 R14: ffff8880b9d37080 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0d3555e9ee CR3: 000000007a19e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __flush_smp_call_function_queue+0x21c/0xaf0
 __sysvec_call_function_single+0xfc/0x470
 sysvec_call_function_single+0x8d/0xb0
 </IRQ>
 <TASK>
 asm_sysvec_call_function_single+0x1a/0x20
RIP: 0010:lock_is_held_type+0x12b/0x180
Code: 05 2a ec 71 76 83 f8 01 75 38 9c 8f 04 24 f7 04 24 00 02 00 00 75 46 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 3c 89 e8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc9000468f478 EFLAGS: 00000206
RAX: 4497fafb152b9e00 RBX: 0000000000000003 RCX: ffffffff81b517e8
RDX: 0000000000000000 RSI: ffffffff89ca8c00 RDI: ffffffff8a19cd80
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed10039fa369
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000246
R13: ffff8880714cba00 R14: 00000000ffffffff R15: ffffffff8bd18be0
 __might_resched+0xe3/0x6c0
 __put_anon_vma+0x76/0x250
 unlink_anon_vmas+0x3f9/0x4f0
 free_pgtables+0x2b4/0x3c0
 exit_mmap+0x25c/0x740
 __mmput+0xcb/0x300
 exec_mmap+0x43b/0x490
 begin_new_exec+0x651/0xe90
 load_elf_binary+0x85c/0x2540
 bprm_execve+0x864/0x1390
 do_execveat_common+0x44f/0x610
 __x64_sys_execve+0x8d/0xa0
 do_syscall_64+0x41/0xc0
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d354ab337
Code: Unable to access opcode bytes at 0x7f0d354ab30d.
RSP: 002b:00007ffcc5510728 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 00005606ef619f38 RCX: 00007f0d354ab337
RDX: 00005606ef60fea8 RSI: 00005606ef619f38 RDI: 00005606ef60ff30
RBP: 00005606ef60ff30 R08: 00005606ef60ff39 R09: 00007f0d3559da60
R10: 00005606ef610410 R11: 0000000000000246 R12: 00005606ef60fea8
R13: 00007f0d35650ff4 R14: 00005606ef60fea8 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	05 2a ec 71 76       	add    $0x7671ec2a,%eax
   5:	83 f8 01             	cmp    $0x1,%eax
   8:	75 38                	jne    0x42
   a:	9c                   	pushfq
   b:	8f 04 24             	popq   (%rsp)
   e:	f7 04 24 00 02 00 00 	testl  $0x200,(%rsp)
  15:	75 46                	jne    0x5d
  17:	41 f7 c4 00 02 00 00 	test   $0x200,%r12d
  1e:	74 01                	je     0x21
  20:	fb                   	sti
  21:	65 48 8b 04 25 28 00 	mov    %gs:0x28,%rax
  28:	00 00
* 2a:	48 3b 44 24 08       	cmp    0x8(%rsp),%rax <-- trapping instruction
  2f:	75 3c                	jne    0x6d
  31:	89 e8                	mov    %ebp,%eax
  33:	48 83 c4 10          	add    $0x10,%rsp
  37:	5b                   	pop    %rbx
  38:	41 5c                	pop    %r12
  3a:	41 5d                	pop    %r13
  3c:	41 5e                	pop    %r14
  3e:	41 5f                	pop    %r15