ci2 starts bisection 2024-08-22 09:14:45.693633433 +0000 UTC m=+26582.831200466 bisecting fixing commit since 347385861c50adc8d4801d4b899eded38a2f04cd building syzkaller on 171ec3714ee4886a3f5ecbfe71f63c8f81c7fd7c ensuring issue is reproducible on original commit 347385861c50adc8d4801d4b899eded38a2f04cd testing commit 347385861c50adc8d4801d4b899eded38a2f04cd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d6871f26b69b65943c621d786a5647470b18e07576281b0277aca9b36a082294 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_writepages run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: kernel BUG in ext4_writepages run #7: crashed: kernel BUG in ext4_writepages run #8: crashed: kernel BUG in ext4_write_inline_data_end run #9: crashed: INFO: rcu detected stall in corrupted 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 [ATOMIC_SLEEP LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 347385861c50adc8d4801d4b899eded38a2f04cd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d0e4a3239dff36792f2eb32f27e7371c84ddeafff5cd2820297b72cd44625b34 run #0: crashed: kernel BUG in ext4_writepages run #1: crashed: kernel BUG in ext4_writepages 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_writepages run #5: crashed: kernel BUG in ext4_write_inline_data_end run #6: crashed: kernel BUG in ext4_writepages 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 representative crash: kernel BUG in ext4_writepages, types: [BUG] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=3822 full=7454 leaves diff=1988 split chunks (needed=false): <1988> split chunk #0 of len 1988 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 347385861c50adc8d4801d4b899eded38a2f04cd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aca29b39dd420ae8fce01c71a91d43e0c7e0dfaa066a530db851bcd491b90aad 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: INFO: rcu detected stall in corrupted run #4: crashed: kernel BUG in ext4_writepages 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_writepages representative crash: kernel BUG in ext4_writepages, types: [BUG HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing commit 347385861c50adc8d4801d4b899eded38a2f04cd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b72479b247d0933553743beb79591d056fccef78832fb507f394943369bd122c 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: INFO: rcu detected stall in corrupted run #7: crashed: kernel BUG in ext4_writepages run #8: crashed: kernel BUG in ext4_write_inline_data_end run #9: crashed: kernel BUG in ext4_writepages representative crash: kernel BUG in ext4_writepages, types: [BUG HANG] 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 347385861c50adc8d4801d4b899eded38a2f04cd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 05b4ed35dd586123a1afcd06e6f7ee2afa5b61b54ae4c57d7372af894cd96ea8 run #0: crashed: kernel BUG in ext4_write_inline_data_end run #1: crashed: kernel BUG in ext4_writepages run #2: crashed: kernel BUG in ext4_write_inline_data_end 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_write_inline_data_end run #7: crashed: kernel BUG in ext4_writepages run #8: crashed: kernel BUG in ext4_write_inline_data_end run #9: crashed: kernel BUG in ext4_writepages representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed testing commit 347385861c50adc8d4801d4b899eded38a2f04cd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e277c7613498bcee6af379fc4534ae1c023fcc362cbe66e401e2e32876e9039b all runs: 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 [ATOMIC_SLEEP LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit 347385861c50adc8d4801d4b899eded38a2f04cd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 547edf63520acddf42d39271f40d47771d82b9ea7898b6598390c6792ac29af2 all runs: 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 disabling configs for [ATOMIC_SLEEP LEAK UBSAN KASAN LOCKDEP], they are not needed testing current HEAD ee5e09825b810498caeaaa3d46a3410768471053 testing commit ee5e09825b810498caeaaa3d46a3410768471053 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7e3c052343c755633b7ef26c9cfa7777a8d2f4de5f8ea3c103d5d124e4279fdd all runs: crashed: kernel BUG in ext4_write_inline_data_end representative crash: kernel BUG in ext4_write_inline_data_end, types: [BUG] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 1h13m3.693625139s (build: 29m10.449637607s, test: 41m31.61199712s) crash still not fixed or there were kernel test errors commit msg: Linux 6.1.106 crash: kernel BUG in ext4_write_inline_data_end ------------[ cut here ]------------ kernel BUG at fs/ext4/inline.c:236! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 1 PID: 4004 Comm: syz-executor.0 Not tainted 6.1.106-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:ext4_write_inline_data fs/ext4/inline.c:236 [inline] RIP: 0010:ext4_write_inline_data_end+0x4cc/0x5e0 fs/ext4/inline.c:777 Code: 8b 44 24 48 a8 01 0f 84 eb fb ff ff 48 ff c8 49 89 c4 e9 e0 fb ff ff 4c 89 e7 48 c7 c6 c9 59 2e 82 e8 e8 5c ea ff 0f 0b 0f 0b <0f> 0b 4c 89 e0 48 c1 e0 34 0f 85 76 fd ff ff 49 f7 04 24 00 00 01 RSP: 0018:ffffc90001c3fa68 EFLAGS: 00010212 RAX: 00000000000000a4 RBX: 0000000000000ff9 RCX: 0000000000001000 RDX: 000000000000003c RSI: 0000000000000ff9 RDI: ffffffff8138462f RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000000 R11: 4000000000000000 R12: ffffea00046487c0 R13: ffff888104388000 R14: 0000000000000007 R15: ffff88811497ead8 FS: 00007f866bdf86c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000142 CR3: 00000001037dd000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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+0x252/0x450 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: 0033:0x7f866c276e69 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:00007f866bdf80c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f866c3a4f80 RCX: 00007f866c276e69 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007f866c2c347a R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f866c3a4f80 R15: 00007fffb3314848 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_write_inline_data fs/ext4/inline.c:236 [inline] RIP: 0010:ext4_write_inline_data_end+0x4cc/0x5e0 fs/ext4/inline.c:777 Code: 8b 44 24 48 a8 01 0f 84 eb fb ff ff 48 ff c8 49 89 c4 e9 e0 fb ff ff 4c 89 e7 48 c7 c6 c9 59 2e 82 e8 e8 5c ea ff 0f 0b 0f 0b <0f> 0b 4c 89 e0 48 c1 e0 34 0f 85 76 fd ff ff 49 f7 04 24 00 00 01 RSP: 0018:ffffc90001c3fa68 EFLAGS: 00010212 RAX: 00000000000000a4 RBX: 0000000000000ff9 RCX: 0000000000001000 RDX: 000000000000003c RSI: 0000000000000ff9 RDI: ffffffff8138462f RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000000 R11: 4000000000000000 R12: ffffea00046487c0 R13: ffff888104388000 R14: 0000000000000007 R15: ffff88811497ead8 FS: 00007f866bdf86c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000142 CR3: 00000001037dd000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400