ci starts bisection 2022-07-31 03:00:01.010829484 +0000 UTC m=+144785.179313737
bisecting fixing commit since 1a0e93df1e107dc766fdf86ae88076efd9f376e6
building syzkaller on 1434eec0b84075b7246560cfa89f20cdb3d8077f
testing commit 1a0e93df1e107dc766fdf86ae88076efd9f376e6
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 05cd97bcd1104b7b440b1ee1f8094c32f76935ad245369ee13fdacf1e2f2777f
all runs: crashed: kernel BUG in ext4_writepages
testing current HEAD 6a010258447d386186ca10cd374d888ac66ffe1a
testing commit 6a010258447d386186ca10cd374d888ac66ffe1a
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: b9052a910512b17c048be196e99ca284beb77de5e25558914e5dc8fd19c0e8ad
all runs: crashed: kernel BUG in ext4_writepages
revisions tested: 2, total time: 20m52.631955703s (build: 13m37.880525515s, test: 6m48.597482647s)
the crash still happens on HEAD
commit msg: Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
crash: kernel BUG in ext4_writepages
EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback.
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2720!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4091 Comm: syz-executor.0 Not tainted 5.19.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
RIP: 0010:ext4_writepages+0x1a88/0x2d10 fs/ext4/inode.c:2720
Code: 0f 87 57 44 68 06 be 00 10 00 00 ba 01 00 00 00 4c 89 e7 48 d3 ee e8 67 67 fe ff 83 c0 01 89 84 24 c8 00 00 00 e9 48 eb ff ff <0f> 0b 89 44 24 08 e9 94 ef ff ff 48 8b 7c 24 28 e8 63 68 b2 ff e9
RSP: 0018:ffffc90002f6f510 EFLAGS: 00010247
RAX: 0000008410000000 RBX: ffff88806fe26000 RCX: ffffffff81fdb872
RDX: 1ffff1100e6e014b RSI: 0000000000000008 RDI: ffff888073700a58
RBP: ffff888073700a58 R08: 0000000000000000 R09: ffff888073700a5f
R10: ffffed100e6e014b R11: 0000000000000000 R12: ffff888073700cb8
R13: ffffc90002f6fa58 R14: 0000000000000001 R15: ffff88806fe26000
FS:  00007f9113bcc700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020002580 CR3: 000000007f050000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 do_writepages+0x16e/0x5f0 mm/page-writeback.c:2443
 filemap_fdatawrite_wbc mm/filemap.c:388 [inline]
 filemap_fdatawrite_wbc+0x107/0x170 mm/filemap.c:378
 __filemap_fdatawrite_range+0xa2/0xe0 mm/filemap.c:421
 file_write_and_wait_range+0x8d/0xf0 mm/filemap.c:779
 ext4_sync_file+0x1c8/0xc90 fs/ext4/fsync.c:151
 generic_write_sync include/linux/fs.h:2731 [inline]
 ext4_buffered_write_iter+0x201/0x2c0 fs/ext4/file.c:277
 ext4_file_write_iter+0x39d/0x11a0 fs/ext4/file.c:679
 call_write_iter include/linux/fs.h:2058 [inline]
 new_sync_write+0x2e0/0x520 fs/read_write.c:504
 vfs_write+0x607/0x8f0 fs/read_write.c:591
 ksys_write+0xee/0x1c0 fs/read_write.c:644
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9112a89109
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007f9113bcc168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9112b9bf60 RCX: 00007f9112a89109
RDX: 0000000000000016 RSI: 0000000020002580 RDI: 0000000000000007
RBP: 00007f9112ae305d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc8b56226f R14: 00007f9113bcc300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_writepages+0x1a88/0x2d10 fs/ext4/inode.c:2720
Code: 0f 87 57 44 68 06 be 00 10 00 00 ba 01 00 00 00 4c 89 e7 48 d3 ee e8 67 67 fe ff 83 c0 01 89 84 24 c8 00 00 00 e9 48 eb ff ff <0f> 0b 89 44 24 08 e9 94 ef ff ff 48 8b 7c 24 28 e8 63 68 b2 ff e9
RSP: 0018:ffffc90002f6f510 EFLAGS: 00010247
RAX: 0000008410000000 RBX: ffff88806fe26000 RCX: ffffffff81fdb872
RDX: 1ffff1100e6e014b RSI: 0000000000000008 RDI: ffff888073700a58
RBP: ffff888073700a58 R08: 0000000000000000 R09: ffff888073700a5f
R10: ffffed100e6e014b R11: 0000000000000000 R12: ffff888073700cb8
R13: ffffc90002f6fa58 R14: 0000000000000001 R15: ffff88806fe26000
FS:  00007f9113bcc700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055737b6bb028 CR3: 000000007f050000 CR4: 0000000000350ef0