ci starts bisection 2023-05-21 20:24:12.686385796 +0000 UTC m=+127175.028280863
bisecting fixing commit since 7c46948a6e9cf47ed03b0d489fde894ad46f1437
building syzkaller on 9dfcf09cf38eb123a007af28c5ee2562718893a0
ensuring issue is reproducible on original commit 7c46948a6e9cf47ed03b0d489fde894ad46f1437

testing commit 7c46948a6e9cf47ed03b0d489fde894ad46f1437 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 06368a61569977d6397961f45918ecfdb11021eefc78dbd6c9ce79bf9eb8bd4f
all runs: crashed: general protection fault in txEnd
testing current HEAD 4927cb98f0eeaa5dbeac882e8372f4b16dc62624
testing commit 4927cb98f0eeaa5dbeac882e8372f4b16dc62624 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 0e3753daafe1acc91e016553554719b1385138a6afeb1f00abe9b381d45b72da
all runs: crashed: general protection fault in txEnd
crash still not fixed/happens on the oldest tested release
revisions tested: 2, total time: 24m15.890992753s (build: 17m26.53345434s, test: 5m42.034251378s)
crash still not fixed on HEAD or HEAD had kernel test errors
commit msg: Merge tag 'powerpc-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
crash: general protection fault in txEnd
read_mapping_page failed!
ERROR: (device loop0): txCommit: 
general protection fault, probably for non-canonical address 0xdffffc0000000029: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000148-0x000000000000014f]
CPU: 1 PID: 5471 Comm: syz-executor.0 Not tainted 6.4.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
RIP: 0010:txEnd+0x1b9/0x4a0 fs/jfs/jfs_txnmgr.c:534
Code: 4d 0f 24 0e 49 8d bc 24 4c 01 00 00 0f b7 ed 48 89 fa 89 2d 39 0f 24 0e 48 c1 ea 03 66 89 43 28 48 b8 00 00 00 00 00 fc ff df <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 26
RSP: 0018:ffffc90004cbfb28 EFLAGS: 00010213
RAX: dffffc0000000000 RBX: ffffc90002231110 RCX: 0000000000000000
RDX: 0000000000000029 RSI: ffffffff896b95c0 RDI: 000000000000014c
RBP: 0000000000000001 R08: 0000000000000001 R09: ffffffff903bcc8f
R10: 0000000000000001 R11: 0000000000000005 R12: 0000000000000000
R13: ffffffff8bcbd500 R14: ffffc90002231112 R15: ffffc90002452060
FS:  00007fadde3e3700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005630e2b26950 CR3: 000000001b8b4000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 add_missing_indices fs/jfs/jfs_dtree.c:2658 [inline]
 jfs_readdir+0x201f/0x3610 fs/jfs/jfs_dtree.c:3004
 iterate_dir+0x1aa/0x6c0 fs/readdir.c:67
 __do_sys_getdents fs/readdir.c:286 [inline]
 __se_sys_getdents fs/readdir.c:271 [inline]
 __x64_sys_getdents+0x126/0x240 fs/readdir.c:271
 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: 0033:0x7faddd68c0c9
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:00007fadde3e3168 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007faddd7ac050 RCX: 00007faddd68c0c9
RDX: 000000000000004c RSI: 0000000020000100 RDI: 0000000000000004
RBP: 00007faddd6e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffa391155f R14: 00007fadde3e3300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txEnd+0x1b9/0x4a0 fs/jfs/jfs_txnmgr.c:534
Code: 4d 0f 24 0e 49 8d bc 24 4c 01 00 00 0f b7 ed 48 89 fa 89 2d 39 0f 24 0e 48 c1 ea 03 66 89 43 28 48 b8 00 00 00 00 00 fc ff df <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 26
RSP: 0018:ffffc90004cbfb28 EFLAGS: 00010213
RAX: dffffc0000000000 RBX: ffffc90002231110 RCX: 0000000000000000
RDX: 0000000000000029 RSI: ffffffff896b95c0 RDI: 000000000000014c
RBP: 0000000000000001 R08: 0000000000000001 R09: ffffffff903bcc8f
R10: 0000000000000001 R11: 0000000000000005 R12: 0000000000000000
R13: ffffffff8bcbd500 R14: ffffc90002231112 R15: ffffc90002452060
FS:  00007fadde3e3700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005630e2b26950 CR3: 000000001b8b4000 CR4: 0000000000350ee0
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	24 0e                	and    $0xe,%al
   2:	49 8d bc 24 4c 01 00 	lea    0x14c(%r12),%rdi
   9:	00
   a:	0f b7 ed             	movzwl %bp,%ebp
   d:	48 89 fa             	mov    %rdi,%rdx
  10:	89 2d 39 0f 24 0e    	mov    %ebp,0xe240f39(%rip)        # 0xe240f4f
  16:	48 c1 ea 03          	shr    $0x3,%rdx
  1a:	66 89 43 28          	mov    %ax,0x28(%rbx)
  1e:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  25:	fc ff df
* 28:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx <-- trapping instruction
  2c:	48 89 f8             	mov    %rdi,%rax
  2f:	83 e0 07             	and    $0x7,%eax
  32:	83 c0 03             	add    $0x3,%eax
  35:	38 d0                	cmp    %dl,%al
  37:	7c 08                	jl     0x41
  39:	84 d2                	test   %dl,%dl
  3b:	0f                   	.byte 0xf
  3c:	85 26                	test   %esp,(%rsi)