ci starts bisection 2023-04-02 13:33:52.675864751 +0000 UTC m=+349773.122212729
bisecting fixing commit since 04a357b1f6f0b6f7c8689361fa8802e8e35d02ad
building syzkaller on f8902b5747fbe3d5b860bd782eec63fc9c7da6e7
ensuring issue is reproducible on original commit 04a357b1f6f0b6f7c8689361fa8802e8e35d02ad

testing commit 04a357b1f6f0b6f7c8689361fa8802e8e35d02ad gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 058f3f73040ffc67871380a696de477db5ae17bfc465c7ebc14d1a89ef9555b0
all runs: crashed: kernel BUG in collapse_file
testing current HEAD 00c7b5f4ddc5b346df62b757ec73f9357bb452af
testing commit 00c7b5f4ddc5b346df62b757ec73f9357bb452af gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: a6618b358f7c28070ce136d89e799a2c86f21ed351cfb66216e12e6ae619ea38
all runs: crashed: kernel BUG in collapse_file
revisions tested: 2, total time: 25m43.33336445s (build: 18m24.900713088s, test: 6m44.20066626s)
the crash still happens on HEAD
commit msg: Merge tag 'input-for-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
crash: kernel BUG in collapse_file
------------[ cut here ]------------
kernel BUG at mm/khugepaged.c:1823!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 6316 Comm: syz-executor.1 Not tainted 6.3.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:collapse_file+0x1a99/0x3dc0 mm/khugepaged.c:1823
Code: 85 c0 0f 84 06 19 00 00 4c 89 a4 24 18 01 00 00 48 c7 84 24 28 01 00 00 03 00 00 00 e9 c1 fc ff ff 49 83 ee 01 e9 70 fd ff ff <0f> 0b 0f 0b e9 a6 e7 ff ff 49 83 ec 01 e9 c5 e8 ff ff 48 8b 45 08
RSP: 0018:ffffc90005cd7800 EFLAGS: 00010097
RAX: 0000000000000000 RBX: ffff888072249638 RCX: ffffffff83e77525
RDX: 0000000000000000 RSI: ffffffff89c25da0 RDI: ffffc90005cd7910
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: fffffbfff171fb72 R11: 0000000000000000 R12: 00000000000001c1
R13: dffffc0000000000 R14: ffff888072249640 R15: ffffea00017dc248
FS:  00007faf767fe700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b4b5f8b950 CR3: 000000006cecc000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hpage_collapse_scan_file+0x88a/0xf70 mm/khugepaged.c:2233
 madvise_collapse+0x44f/0x950 mm/khugepaged.c:2693
 madvise_vma_behavior+0x525/0x18e0 mm/madvise.c:1086
 madvise_walk_vmas+0x155/0x230 mm/madvise.c:1260
 do_madvise.part.0+0x1c3/0x280 mm/madvise.c:1439
 do_madvise mm/madvise.c:1452 [inline]
 __do_sys_madvise mm/madvise.c:1452 [inline]
 __se_sys_madvise mm/madvise.c:1450 [inline]
 __x64_sys_madvise+0xd0/0x130 mm/madvise.c:1450
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7faf7748c0f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007faf767fe168 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007faf775ac050 RCX: 00007faf7748c0f9
RDX: 0000000000000019 RSI: 000000000060005f RDI: 0000000020000000
RBP: 00007faf767fe1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffecde6e4ef R14: 00007faf767fe300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:collapse_file+0x1a99/0x3dc0 mm/khugepaged.c:1823
Code: 85 c0 0f 84 06 19 00 00 4c 89 a4 24 18 01 00 00 48 c7 84 24 28 01 00 00 03 00 00 00 e9 c1 fc ff ff 49 83 ee 01 e9 70 fd ff ff <0f> 0b 0f 0b e9 a6 e7 ff ff 49 83 ec 01 e9 c5 e8 ff ff 48 8b 45 08
RSP: 0018:ffffc90005cd7800 EFLAGS: 00010097
RAX: 0000000000000000 RBX: ffff888072249638 RCX: ffffffff83e77525
RDX: 0000000000000000 RSI: ffffffff89c25da0 RDI: ffffc90005cd7910
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: fffffbfff171fb72 R11: 0000000000000000 R12: 00000000000001c1
R13: dffffc0000000000 R14: ffff888072249640 R15: ffffea00017dc248
FS:  00007faf767fe700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b4b5f8b950 CR3: 000000006cecc000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400