ci2 starts bisection 2024-06-26 21:34:09.723755216 +0000 UTC m=+41423.826992103 bisecting fixing commit since 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 building syzkaller on 35d9ecc508aef508b67ee7986a7abb0864e74f8e ensuring issue is reproducible on original commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 631c2c41047bfbb18c79428444daa4ff1988d0ae471ba3e1be68595bb1e4e783 run #0: crashed: kernel BUG in ext4_writepages run #1: crashed: kernel BUG in ext4_writepages run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: kernel BUG in ext4_writepages run #4: crashed: kernel BUG in ext4_writepages run #5: crashed: kernel BUG in __ext4_journal_stop run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: kernel BUG in ext4_writepages run #9: crashed: kernel BUG in ext4_writepages run #10: crashed: INFO: rcu detected stall in corrupted run #11: crashed: INFO: rcu detected stall in corrupted run #12: crashed: INFO: rcu detected stall in corrupted run #13: crashed: INFO: rcu detected stall in corrupted run #14: crashed: INFO: rcu detected stall in corrupted run #15: crashed: INFO: rcu detected stall in corrupted run #16: crashed: INFO: rcu detected stall in corrupted run #17: crashed: INFO: rcu detected stall in corrupted run #18: crashed: INFO: rcu detected stall in corrupted run #19: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in corrupted, types: [HANG BUG] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 693749a65d54b43ff6ae6d8f43d08ba1158cf39ab056150de0c1fc3d6504bd4d run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: kernel BUG in ext4_writepages run #2: crashed: kernel BUG in __ext4_journal_stop run #3: crashed: kernel BUG in ext4_writepages run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: kernel BUG in __ext4_journal_stop representative crash: INFO: rcu detected stall in corrupted, types: [HANG BUG] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed kconfig minimization: base=3820 full=7523 leaves diff=1994 split chunks (needed=false): <1994> split chunk #0 of len 1994 into 5 parts testing without sub-chunk 1/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0d2fe69399a3714700ac1cafbe140e5ee582f2d621e7db420883036d09f5e5ac run #0: crashed: kernel BUG in __ext4_journal_stop run #1: crashed: kernel BUG in __ext4_journal_stop run #2: crashed: kernel BUG in __ext4_journal_stop run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: kernel BUG in __ext4_journal_stop run #5: crashed: kernel BUG in ext4_writepages run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: kernel BUG in __ext4_journal_stop representative crash: kernel BUG in __ext4_journal_stop, types: [BUG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d90f4ebba9b3cdb4b91fc4522a4d9beb726fbb7e1c4078674bee0c82e734bb8f run #0: crashed: kernel BUG in ext4_writepages run #1: crashed: kernel BUG in ext4_writepages run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: kernel BUG in ext4_writepages run #7: crashed: kernel BUG in __ext4_journal_stop run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in corrupted, types: [HANG BUG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9270e59554144758558eccbb7de9ca34f44c649d88ea3c97ae5b571512224e31 run #0: crashed: kernel BUG in __ext4_journal_stop run #1: crashed: kernel BUG in ext4_writepages run #2: crashed: kernel BUG in ext4_writepages run #3: crashed: kernel BUG in __ext4_journal_stop run #4: crashed: kernel BUG in __ext4_journal_stop run #5: crashed: kernel BUG in ext4_writepages run #6: crashed: kernel BUG in __ext4_journal_stop run #7: crashed: kernel BUG in ext4_writepages run #8: crashed: kernel BUG in __ext4_journal_stop run #9: crashed: kernel BUG in __ext4_journal_stop representative crash: kernel BUG in __ext4_journal_stop, types: [BUG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [ATOMIC_SLEEP LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 45688a37760e392b2d3154a5cb09d7388bbc99b11174805763dba1f52f6312c1 all runs: crashed: kernel BUG in __ext4_journal_stop representative crash: kernel BUG in __ext4_journal_stop, types: [BUG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 80328be77ab9e66e8a860e5ff780cf0e3a93254e4fc1f5ce6fbc650695da9dfa run #0: crashed: kernel BUG in __ext4_journal_stop run #1: crashed: kernel BUG in __ext4_journal_stop run #2: crashed: lost connection to test machine run #3: crashed: kernel BUG in __ext4_journal_stop run #4: crashed: kernel BUG in __ext4_journal_stop run #5: crashed: kernel BUG in __ext4_journal_stop run #6: crashed: kernel BUG in __ext4_journal_stop run #7: crashed: kernel BUG in __ext4_journal_stop run #8: crashed: kernel BUG in __ext4_journal_stop run #9: crashed: kernel BUG in __ext4_journal_stop representative crash: kernel BUG in __ext4_journal_stop, types: [BUG] the chunk can be dropped disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD a6398e37309000e35cedb5cc328a0f8d00d7d7b9 testing commit a6398e37309000e35cedb5cc328a0f8d00d7d7b9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c9cb2ce4205ce88f9a02fe0597ca7b7dc7fcd41ac7c78d2f5c1c5a82ee47e816 all runs: crashed: kernel BUG in __ext4_journal_stop representative crash: kernel BUG in __ext4_journal_stop, types: [BUG] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 1h16m42.292104726s (build: 45m47.086611556s, test: 28m31.113418552s) crash still not fixed or there were kernel test errors commit msg: Linux 6.1.95 crash: kernel BUG in __ext4_journal_stop ------------[ cut here ]------------ kernel BUG at fs/ext4/ext4_jbd2.c:53! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 1 PID: 3896 Comm: syz-executor.3 Not tainted 6.1.95-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:ext4_put_nojournal fs/ext4/ext4_jbd2.c:53 [inline] RIP: 0010:__ext4_journal_stop+0x86/0x90 fs/ext4/ext4_jbd2.c:116 Code: ff 4c 89 e6 44 89 f2 89 d9 e8 66 93 05 00 eb 0f 48 89 d7 e8 ac 47 07 00 89 c3 85 ed 0f 45 dd 89 d8 5b 41 5c 41 5e 41 5f 5d c3 <0f> 0b 0f 1f 84 00 00 00 00 00 55 41 57 41 56 41 54 53 48 81 ff ff RSP: 0018:ffffc900011f3a38 EFLAGS: 00010246 RAX: fffffffffffffff8 RBX: 0000000000000008 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 000000000000032c RDI: ffffffff823266b5 RBP: 0000000000000000 R08: ffff888111f8e738 R09: 0000000000000000 R10: 0000000000000000 R11: 4000000000000000 R12: ffffea00046a0a80 R13: ffff888109ed9b40 R14: 0000000000000000 R15: ffff88810052ead8 FS: 00007f847f1cc6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007febbd6bd20f CR3: 00000001053d9000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_write_inline_data_end+0x3a9/0x5e0 fs/ext4/inline.c:812 generic_perform_write+0xe6/0x220 mm/filemap.c:3828 ext4_buffered_write_iter+0xe1/0x170 fs/ext4/file.c:285 ext4_file_write_iter+0x56/0x6a0 do_iter_write+0x1c2/0x2d0 fs/read_write.c:861 iter_file_splice_write+0x278/0x430 fs/splice.c:685 do_splice_from fs/splice.c:763 [inline] direct_splice_actor+0x27/0x90 fs/splice.c:950 splice_direct_to_actor+0x154/0x300 fs/splice.c:896 do_splice_direct+0x8b/0xd0 fs/splice.c:1002 do_sendfile+0x278/0x410 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __x64_sys_sendfile64+0x96/0xc0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f848796ab29 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:00007f847f1cc0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f8487a8a050 RCX: 00007f848796ab29 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007f84879b647a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f8487a8a050 R15: 00007ffcf017c378 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_put_nojournal fs/ext4/ext4_jbd2.c:53 [inline] RIP: 0010:__ext4_journal_stop+0x86/0x90 fs/ext4/ext4_jbd2.c:116 Code: ff 4c 89 e6 44 89 f2 89 d9 e8 66 93 05 00 eb 0f 48 89 d7 e8 ac 47 07 00 89 c3 85 ed 0f 45 dd 89 d8 5b 41 5c 41 5e 41 5f 5d c3 <0f> 0b 0f 1f 84 00 00 00 00 00 55 41 57 41 56 41 54 53 48 81 ff ff RSP: 0018:ffffc900011f3a38 EFLAGS: 00010246 RAX: fffffffffffffff8 RBX: 0000000000000008 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 000000000000032c RDI: ffffffff823266b5 RBP: 0000000000000000 R08: ffff888111f8e738 R09: 0000000000000000 R10: 0000000000000000 R11: 4000000000000000 R12: ffffea00046a0a80 R13: ffff888109ed9b40 R14: 0000000000000000 R15: ffff88810052ead8 FS: 00007f847f1cc6c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007febbd6bd20f CR3: 00000001053d9000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400