ci2 starts bisection 2024-11-01 04:20:35.873814126 +0000 UTC m=+100529.841033749
bisecting cause commit starting from 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907
building syzkaller on 96eb609f6eb9558e2fab491a2c63a11bb0556471
ensuring issue is reproducible on original commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907

testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 4c6d11b270ca72d575bcf6e474e5c721eae611fbd359ea8dc79de508d7cebae4
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
check whether we can drop unnecessary instrumentation
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 620ded2aa4f6b1a17f5a82b3d24ca9912c5b76a7da8e23ee166a218d1691032c
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
the bug reproduces without the instrumentation
disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
kconfig minimization: base=4037 full=8185 leaves diff=2110
split chunks (needed=false): <2110>
split chunk #0 of len 2110 into 5 parts
testing without sub-chunk 1/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 1d140e708fa022b5cfaeb9350a54c7298ce48067a97b89f3436e8838a76d2560
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed
testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 97af1f03f3f2ebea5a22adaeb75e0c2410ac2e118932491f94fa4c37f8f3e449
run #0: crashed: WARNING in ext4_iomap_begin
run #1: crashed: WARNING in ext4_iomap_begin
run #2: crashed: kernel BUG in ext4_write_inline_data_end
run #3: crashed: WARNING in ext4_iomap_begin
run #4: crashed: WARNING in ext4_iomap_begin
run #5: crashed: WARNING in ext4_iomap_begin
run #6: crashed: WARNING in ext4_iomap_begin
run #7: crashed: WARNING in ext4_iomap_begin
run #8: crashed: kernel BUG in ext4_write_inline_data_end
run #9: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c74a23301ca1a255970c876e0fe567f4f723f25524ed314e976473c8f4f0756b
run #0: crashed: kernel BUG in ext4_write_inline_data_end
run #1: crashed: kernel BUG in ext4_write_inline_data_end
run #2: crashed: kernel BUG in ext4_write_inline_data_end
run #3: crashed: kernel BUG in ext4_write_inline_data_end
run #4: crashed: kernel BUG in ext4_write_inline_data_end
run #5: crashed: WARNING in ext4_iomap_begin
run #6: crashed: kernel BUG in ext4_write_inline_data_end
run #7: crashed: kernel BUG in ext4_write_inline_data_end
run #8: crashed: WARNING in ext4_iomap_begin
run #9: crashed: WARNING in ext4_iomap_begin
representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG WARNING]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed
testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: de6a899a4f24605846baf83f44c28fd84e06b0b96ad1086206724946457c886e
run #0: crashed: WARNING in ext4_iomap_begin
run #1: crashed: kernel BUG in ext4_write_inline_data_end
run #2: crashed: kernel BUG in ext4_write_inline_data_end
run #3: crashed: kernel BUG in ext4_write_inline_data_end
run #4: crashed: WARNING in ext4_iomap_begin
run #5: crashed: kernel BUG in ext4_write_inline_data_end
run #6: crashed: kernel BUG in ext4_write_inline_data_end
run #7: crashed: kernel BUG in ext4_write_inline_data_end
run #8: crashed: kernel BUG in ext4_write_inline_data_end
run #9: crashed: kernel BUG in ext4_write_inline_data_end
representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 1c79d8445ef3c2c1558c6094e06ca89b73c1e53355289a76dec885c3edb3a006
run #0: crashed: WARNING in ext4_iomap_begin
run #1: crashed: WARNING in ext4_iomap_begin
run #2: crashed: WARNING in ext4_iomap_begin
run #3: crashed: kernel BUG in ext4_write_inline_data_end
run #4: crashed: kernel BUG in ext4_write_inline_data_end
run #5: crashed: kernel BUG in ext4_write_inline_data_end
run #6: crashed: kernel BUG in ext4_write_inline_data_end
run #7: crashed: kernel BUG in ext4_write_inline_data_end
run #8: crashed: kernel BUG in ext4_write_inline_data_end
run #9: crashed: kernel BUG in ext4_write_inline_data_end
representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG WARNING]
the chunk can be dropped
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed
picked [v6.11 v6.10 v6.9 v6.7 v6.5 v6.3 v6.1 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 34 release tags
testing release v6.11
testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6c48e5c4b708fe1f15956b63c230b1b6608607a4088d466eada1924637fd0f46
run #0: crashed: WARNING in ext4_iomap_begin
run #1: crashed: kernel BUG in ext4_write_inline_data_end
run #2: crashed: WARNING in ext4_iomap_begin
run #3: crashed: kernel BUG in ext4_write_inline_data_end
run #4: crashed: kernel BUG in ext4_write_inline_data_end
run #5: crashed: WARNING in ext4_iomap_begin
run #6: crashed: WARNING in ext4_iomap_begin
run #7: crashed: WARNING in ext4_iomap_begin
run #8: crashed: kernel BUG in ext4_write_inline_data_end
run #9: crashed: kernel BUG in ext4_write_inline_data_end
representative crash: WARNING in ext4_iomap_begin, types: [WARNING BUG]
testing release v6.10
testing commit 0c3836482481200ead7b416ca80c68a29cfdaabd gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ee305711b1d99fda7789e21cf582d38b42444a76e796bfb14d40c7bc49b4dcfb
all runs: crashed: kernel BUG in ext4_write_inline_data_end
representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG]
testing release v6.9
testing commit a38297e3fb012ddfa7ce0321a7e5a8daeb1872b6 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: d9f653542b22122d1f1e77a565dfc6f3c325dd03994ef8a63d7977bbc30124b6
run #0: crashed: kernel BUG in ext4_write_inline_data_end
run #1: crashed: kernel BUG in ext4_write_inline_data_end
run #2: crashed: kernel BUG in ext4_write_inline_data_end
run #3: crashed: kernel BUG in ext4_write_inline_data_end
run #4: crashed: kernel BUG in ext4_write_inline_data_end
run #5: crashed: kernel BUG in ext4_write_inline_data_end
run #6: crashed: WARNING in ext4_iomap_begin
run #7: crashed: kernel BUG in ext4_write_inline_data_end
run #8: crashed: kernel BUG in ext4_write_inline_data_end
run #9: crashed: kernel BUG in ext4_write_inline_data_end
representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG]
testing release v6.7
testing commit 0dd3ee31125508cd67f7e7172247f05b7fd1753a gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 2998abd260fd41e22065812ce2543b55b59218c792dc62cb914866cb041fdeac
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
testing release v6.5
testing commit 2dde18cd1d8fac735875f2e4987f11817cc0bc2c gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a74811bf4a8d0f4efe21b861c3fc390a734e1886129899c6946bb1a0331fe72c
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
testing release v6.3
testing commit 457391b0380335d5e9a5babdec90ac53928b23b4 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: bf90ade29effb2f313ffa7ba57351de877e3d16d0d34da42e0b90c266f7a0ae7
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
testing release v6.1
testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6e3d5ffd2e216b13c72c1cd3707ea16cd0434247b7686c0d299f7e96f822f197
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
testing release v5.19
testing commit 3d7cb6b04c3f3115719235cc6866b10326de34cd gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6bc2cca597fbd776540d4c3febf2321858897bbf037d7458d008121a99cf8b2b
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
testing release v5.16
testing commit df0cc57e057f18e44dac8e6c18aba47ab53202f9 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 354cadb5a30c96482013f17bdc188a62b57765b107d943ba06d0ee23f2c0f563
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
testing release v5.13
testing commit 62fb9874f5da54fdb243003b386128037319b219 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 609469a52ac9e76a254a5647ba6d0d486e540af770f5ffdd98bc00b9c13491f2
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
testing release v5.10
testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 48dc63dec1e713879832866e2f4b65ac1f7e4834384d37cd40942acb331a8e75
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 gcc
compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.40
kernel signature: bf7e04ce351d221b35026f11a7bdadf3d6461fc47072f451c6bc347075e62462
all runs: crashed: WARNING in ext4_iomap_begin
representative crash: WARNING in ext4_iomap_begin, types: [WARNING]
testing release v5.4
testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c3f3030290a8864c1adcbb6031a24616de27ac25a2f8163d6a583f2965c34cc1
all runs: crashed: kernel BUG in ext4_write_inline_data
representative crash: kernel BUG in ext4_write_inline_data, types: [BUG]
testing release v5.1
testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 8ea308b22ca82ece280c502d7c6ffacbc4023cac79510baeba7d540a597aaeba
all runs: crashed: kernel BUG in ext4_write_inline_data
representative crash: kernel BUG in ext4_write_inline_data, types: [BUG]
testing release v4.19
testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 08581c66480362ece0536186fb7f85b936f61ff753bdaf0e95c75bf4a7fc91ef
run #0: crashed: kernel BUG in ext4_write_inline_data
run #1: crashed: kernel BUG in ext4_write_inline_data
run #2: crashed: kernel BUG in ext4_writepages
run #3: crashed: kernel BUG in ext4_write_inline_data
run #4: crashed: kernel BUG in ext4_write_inline_data
run #5: crashed: kernel BUG in ext4_write_inline_data
run #6: crashed: kernel BUG in ext4_write_inline_data
run #7: crashed: kernel BUG in ext4_writepages
run #8: crashed: kernel BUG in ext4_write_inline_data
run #9: crashed: kernel BUG in ext4_write_inline_data
representative crash: kernel BUG in ext4_write_inline_data, types: [BUG]
crash still not fixed/happens on the oldest tested release
revisions tested: 22, total time: 6h21m33.507573949s (build: 2h44m24.814259305s, test: 3h22m50.634620852s)
oldest tested release already had the bug or it had kernel test errors
commit msg: Linux 4.19
crash: kernel BUG in ext4_write_inline_data
EXT4-fs (loop3): Block reservation details
EXT4-fs (loop3): i_reserved_data_blocks=1
EXT4-fs (loop3): mounted filesystem without journal. Opts: errors=continue
EXT4-fs error (device loop3): ext4_mb_generate_buddy:747: group 0, block bitmap and bg descriptor inconsistent: 25 vs 4278190105 free clusters
------------[ cut here ]------------
kernel BUG at fs/ext4/inline.c:222!
invalid opcode: 0000 [#1] SMP PTI
CPU: 0 PID: 3218 Comm: syz.3.36 Not tainted 4.19.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ext4_write_inline_data.isra.6+0xf8/0x100 fs/ext4/inline.c:222
Code: 01 e7 e8 bb 7a 62 00 48 83 c4 10 5b 41 5c 41 5d 41 5e 5d c3 47 8d 4c 01 c4 41 be 3c 00 00 00 45 29 c6 e9 7b ff ff ff 0f 0b c3 <0f> 0b 66 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 49 89 d6 41 55 41
RSP: 0018:ffffc9000316bb98 EFLAGS: 00010212
RAX: 0000000000001000 RBX: ffff88022ae26578 RCX: ffff880220705000
RDX: ffffc9000316bbf8 RSI: ffffc9000316bbf0 RDI: 000000000000003c
RBP: ffffc9000316bbc8 R08: 0000000000000000 R09: 0000000000001000
R10: ffff88022ae26440 R11: ffff8802245d9f40 R12: ffffea000881c140
R13: 0000000000001000 R14: 0000000000001000 R15: ffff88022ae263e0
FS:  00007fd4d16f16c0(0000) GS:ffff880237a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd4d1c538a0 CR3: 000000022d6de000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_write_inline_data_end+0xde/0x200 fs/ext4/inline.c:751
 ext4_da_write_inline_data_end+0x19/0xd0 fs/ext4/inline.c:948
 ext4_da_write_end+0x201/0x2e0 fs/ext4/inode.c:3170
 generic_perform_write+0x105/0x1b0 mm/filemap.c:3150
 __generic_file_write_iter+0xe8/0x1c0 mm/filemap.c:3232
 ext4_file_write_iter+0x225/0x3c0 fs/ext4/file.c:266
 call_write_iter include/linux/fs.h:1808 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x11a/0x170 fs/read_write.c:487
 vfs_write fs/read_write.c:549 [inline]
 vfs_write+0xaa/0x1a0 fs/read_write.c:533
 ksys_write+0x53/0xc0 fs/read_write.c:598
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x15/0x20 fs/read_write.c:607
 do_syscall_64+0x69/0x180 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fd4d1c70719
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd4d16f1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fd4d1e27f80 RCX: 00007fd4d1c70719
RDX: 0000000000001006 RSI: 0000000020006c00 RDI: 0000000000000004
RBP: 00007fd4d1ce332e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd4d1e27f80 R15: 00007ffd165f2de8
Modules linked in:
---[ end trace 3c90b4f4bb74cdfe ]---
RIP: 0010:ext4_write_inline_data.isra.6+0xf8/0x100 fs/ext4/inline.c:222
Code: 01 e7 e8 bb 7a 62 00 48 83 c4 10 5b 41 5c 41 5d 41 5e 5d c3 47 8d 4c 01 c4 41 be 3c 00 00 00 45 29 c6 e9 7b ff ff ff 0f 0b c3 <0f> 0b 66 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 49 89 d6 41 55 41
RSP: 0018:ffffc9000316bb98 EFLAGS: 00010212
RAX: 0000000000001000 RBX: ffff88022ae26578 RCX: ffff880220705000
RDX: ffffc9000316bbf8 RSI: ffffc9000316bbf0 RDI: 000000000000003c
RBP: ffffc9000316bbc8 R08: 0000000000000000 R09: 0000000000001000
R10: ffff88022ae26440 R11: ffff8802245d9f40 R12: ffffea000881c140
R13: 0000000000001000 R14: 0000000000001000 R15: ffff88022ae263e0
FS:  00007fd4d16f16c0(0000) GS:ffff880237a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd4d1c538a0 CR3: 000000022d6de000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400