ci2 starts bisection 2023-10-06 01:31:08.49853106 +0000 UTC m=+29734.158925910
bisecting fixing commit since 1fe619a7d25218e9b9fdcce9fcac6a05cd62abed
building syzkaller on cf1845599c0bdab59c69518eaa0ecb960ec7ddf0
ensuring issue is reproducible on original commit 1fe619a7d25218e9b9fdcce9fcac6a05cd62abed

testing commit 1fe619a7d25218e9b9fdcce9fcac6a05cd62abed gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 948848142cd6e48f5836a51f1e842e40051488e13f10fdd27d0cb398101fb645
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_writepages
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_writepages
run #9: crashed: kernel BUG in ext4_writepages
run #10: crashed: kernel BUG in ext4_write_inline_data
run #11: crashed: kernel BUG in ext4_write_inline_data
run #12: crashed: kernel BUG in ext4_writepages
run #13: crashed: kernel BUG in ext4_write_inline_data
run #14: crashed: kernel BUG in ext4_writepages
run #15: crashed: kernel BUG in ext4_write_inline_data
run #16: crashed: kernel BUG in ext4_writepages
run #17: crashed: kernel BUG in ext4_write_inline_data
run #18: crashed: kernel BUG in ext4_write_inline_data
run #19: crashed: kernel BUG in ext4_write_inline_data
representative crash: kernel BUG in ext4_write_inline_data, types: [BUG]
check whether we can drop unnecessary instrumentation
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 1fe619a7d25218e9b9fdcce9fcac6a05cd62abed gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 7beb248e9136ffba4e0bf3e0b39c35343b85ebf4aff0e1bdf7a8cb05940c21fc
run #0: infra problem: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS ErrorDetails:[0xc000c8ee10 0xc000c8ef00 0xc000c8eff0] Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #1: crashed: kernel BUG in ext4_writepages
run #2: crashed: kernel BUG in ext4_write_inline_data
run #3: crashed: kernel BUG in ext4_writepages
run #4: crashed: kernel BUG in ext4_writepages
run #5: crashed: kernel BUG in ext4_writepages
run #6: crashed: kernel BUG in ext4_writepages
run #7: crashed: kernel BUG in ext4_writepages
run #8: crashed: kernel BUG in ext4_writepages
run #9: crashed: kernel BUG in ext4_writepages
representative crash: kernel BUG in ext4_writepages, types: [BUG]
the bug reproduces without the instrumentation
disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
kconfig minimization: base=3703 full=7271 leaves diff=1986
split chunks (needed=false): <1986>
split chunk #0 of len 1986 into 5 parts
testing without sub-chunk 1/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed
testing commit 1fe619a7d25218e9b9fdcce9fcac6a05cd62abed gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 9cd6897a69763b2c78e2d728c0b8f09e587184fe8dc7a94ce6765b0cf983d52e
run #0: crashed: kernel BUG in ext4_writepages
run #1: crashed: kernel BUG in ext4_writepages
run #2: crashed: kernel BUG in ext4_writepages
run #3: crashed: kernel BUG in ext4_writepages
run #4: crashed: kernel BUG in ext4_writepages
run #5: crashed: kernel BUG in ext4_write_inline_data
run #6: crashed: kernel BUG in ext4_writepages
run #7: crashed: kernel BUG in ext4_writepages
run #8: OK
run #9: OK
representative crash: kernel BUG in ext4_writepages, types: [BUG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 1fe619a7d25218e9b9fdcce9fcac6a05cd62abed gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0c10b9fc794ef36f187e553dc016d016e9c52593c6009bd0a7a8dec999532295
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_writepages
run #6: crashed: kernel BUG in ext4_writepages
run #7: crashed: kernel BUG in ext4_writepages
run #8: crashed: kernel BUG in ext4_writepages
run #9: crashed: kernel BUG in ext4_write_inline_data
representative crash: kernel BUG in ext4_write_inline_data, types: [BUG]
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 1fe619a7d25218e9b9fdcce9fcac6a05cd62abed gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 49e49f59cdce1d62cec1e006a64284399456f1cdb0a28c536e576ba3779f1c7b
run #0: crashed: kernel BUG in ext4_writepages
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_writepages
run #4: crashed: kernel BUG in ext4_writepages
run #5: crashed: kernel BUG in ext4_writepages
run #6: crashed: kernel BUG in ext4_writepages
run #7: crashed: kernel BUG in ext4_writepages
run #8: crashed: kernel BUG in ext4_writepages
run #9: crashed: kernel BUG in ext4_writepages
representative crash: kernel BUG in ext4_writepages, types: [BUG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed
testing commit 1fe619a7d25218e9b9fdcce9fcac6a05cd62abed gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: df5605731d8ab9026a10a49a255a824bf8fc0a4c4bb9ca0eaa23a140da406eea
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_write_inline_data
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: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: kernel BUG in ext4_write_inline_data, types: [BUG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed
testing commit 1fe619a7d25218e9b9fdcce9fcac6a05cd62abed gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 615edb6138e3ec2df1cec716eec2d91cc9df16cf60ab20da1894f439d6de2377
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_write_inline_data
run #3: crashed: kernel BUG in ext4_write_inline_data
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
representative crash: kernel BUG in ext4_write_inline_data, types: [BUG]
the chunk can be dropped
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing current HEAD b911329317b4218e63baf78f3f422efbaa7198ed
testing commit b911329317b4218e63baf78f3f422efbaa7198ed gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e451df17a75bfc6b9c521b046970a1a06785fc8b2d0c229572dee9ee00d4bd2e
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_write_inline_data
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_write_inline_data
run #8: crashed: kernel BUG in ext4_write_inline_data
run #9: crashed: kernel BUG in ext4_write_inline_data
run #10: crashed: kernel BUG in ext4_write_inline_data
run #11: crashed: kernel BUG in ext4_write_inline_data
run #12: crashed: kernel BUG in ext4_write_inline_data
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
representative crash: kernel BUG in ext4_write_inline_data, types: [BUG]
crash still not fixed/happens on the oldest tested release
reproducer is flaky (0.40 repro chance estimate)
revisions tested: 8, total time: 1h40m4.706171075s (build: 34m4.299810189s, test: 1h4m18.307181803s)
crash still not fixed or there were kernel test errors
commit msg: Linux 5.15.133
crash: kernel BUG in ext4_write_inline_data
------------[ cut here ]------------
kernel BUG at fs/ext4/inline.c:235!
invalid opcode: 0000 [#1] SMP
CPU: 1 PID: 1539 Comm: syz-executor.0 Not tainted 5.15.133-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:ext4_write_inline_data+0xe1/0xf0 fs/ext4/inline.c:235
Code: 44 89 e2 48 01 df 5b 4c 01 ef 5d 41 5c 41 5d 41 5e 41 5f e9 01 36 71 00 45 8d 64 18 c4 41 be 3c 00 00 00 41 29 de eb 93 0f 0b <0f> 0b c3 66 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 f1 89 d6 45 85
RSP: 0018:ffffc9000167fb68 EFLAGS: 00010212
RAX: 0000000000001000 RBX: 0000000000000004 RCX: 000000000000003c
RDX: ffff88811376e000 RSI: ffffc9000167fbb8 RDI: ffff88810f63e968
RBP: ffff88810f63e968 R08: 0000000000000ffc R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000ffc
R13: 0000000000000004 R14: ffffea00044ddb80 R15: ffff88810f63e720
FS:  00007f0c5b2956c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0c5b274d58 CR3: 00000001011b5000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_write_inline_data_end+0xfe/0x480 fs/ext4/inline.c:777
 generic_perform_write+0x109/0x1f0 mm/filemap.c:3787
 ext4_buffered_write_iter+0x9a/0x150 fs/ext4/file.c:268
 call_write_iter include/linux/fs.h:2103 [inline]
 do_iter_readv_writev+0x14d/0x1a0 fs/read_write.c:729
 do_iter_write+0x7a/0x1c0 fs/read_write.c:855
 iter_file_splice_write+0x28f/0x430 fs/splice.c:689
 do_splice_from fs/splice.c:767 [inline]
 direct_splice_actor+0x24/0x40 fs/splice.c:936
 splice_direct_to_actor+0xe9/0x220 fs/splice.c:891
 do_splice_direct+0x8c/0xd0 fs/splice.c:979
 do_sendfile+0x35e/0x4f0 fs/read_write.c:1249
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f0c63a33959
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0c5b2950c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f0c63b53050 RCX: 00007f0c63a33959
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007f0c63a8fc88 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007f0c63b53050 R15: 00007ffe1b51a988
 </TASK>
Modules linked in:
---[ end trace 362700f9c634909d ]---
RIP: 0010:ext4_write_inline_data+0xe1/0xf0 fs/ext4/inline.c:235
Code: 44 89 e2 48 01 df 5b 4c 01 ef 5d 41 5c 41 5d 41 5e 41 5f e9 01 36 71 00 45 8d 64 18 c4 41 be 3c 00 00 00 41 29 de eb 93 0f 0b <0f> 0b c3 66 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 f1 89 d6 45 85
RSP: 0018:ffffc9000167fb68 EFLAGS: 00010212
RAX: 0000000000001000 RBX: 0000000000000004 RCX: 000000000000003c
RDX: ffff88811376e000 RSI: ffffc9000167fbb8 RDI: ffff88810f63e968
RBP: ffff88810f63e968 R08: 0000000000000ffc R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000ffc
R13: 0000000000000004 R14: ffffea00044ddb80 R15: ffff88810f63e720
FS:  00007f0c5b2956c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0c5b274d58 CR3: 00000001011b5000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400