ci2 starts bisection 2023-04-14 04:33:54.365033514 +0000 UTC m=+58976.477998235 bisecting fixing commit since ffb4d94b4314655cea60ab7962756e6bab72fc7e building syzkaller on feb5635181eb12a6e3516172a3f5af06a3bc93e1 ensuring issue is reproducible on original commit ffb4d94b4314655cea60ab7962756e6bab72fc7e testing commit ffb4d94b4314655cea60ab7962756e6bab72fc7e gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 8d364aaff34015681d38d49fab4a3fe019b7883b77c2ad069bb9cc6c454dc0b6 run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: exit status NUM run #1: crashed: kernel BUG in dbFindLeaf run #2: crashed: kernel BUG in dbFindLeaf run #3: crashed: kernel BUG in dbFindLeaf run #4: crashed: kernel BUG in dbFindLeaf run #5: crashed: kernel BUG in dbFindLeaf run #6: crashed: kernel BUG in dbFindLeaf run #7: crashed: kernel BUG in dbFindLeaf run #8: crashed: kernel BUG in dbFindLeaf run #9: crashed: kernel BUG in dbFindLeaf run #10: crashed: kernel BUG in dbFindLeaf run #11: crashed: kernel BUG in dbFindLeaf run #12: crashed: kernel BUG in dbFindLeaf run #13: crashed: kernel BUG in dbFindLeaf run #14: crashed: kernel BUG in dbFindLeaf run #15: crashed: kernel BUG in dbFindLeaf run #16: crashed: kernel BUG in dbFindLeaf run #17: crashed: kernel BUG in dbFindLeaf run #18: crashed: kernel BUG in dbFindLeaf run #19: crashed: kernel BUG in dbFindLeaf testing current HEAD 44149752e9987a9eac5ad78e6d3a20934b5e018d testing commit 44149752e9987a9eac5ad78e6d3a20934b5e018d gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4cfcbc3a20fd25fb3fe97044838b0ac54e5533f04141f688cd9067f830212cef run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: exit status NUM run #1: basic kernel testing failed: BUG: program execution failed: executor NUM: exit status NUM run #2: crashed: kernel BUG in dbFindLeaf run #3: crashed: kernel BUG in dbFindLeaf run #4: crashed: kernel BUG in dbFindLeaf run #5: crashed: kernel BUG in dbFindLeaf run #6: crashed: kernel BUG in dbFindLeaf run #7: crashed: kernel BUG in dbFindLeaf run #8: crashed: kernel BUG in dbFindLeaf run #9: crashed: kernel BUG in dbFindLeaf revisions tested: 2, total time: 39m15.668980091s (build: 29m32.753448434s, test: 6m47.382854202s) the crash still happens on HEAD commit msg: Merge tag 'cgroup-for-6.3-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup crash: kernel BUG in dbFindLeaf loop0: detected capacity change from 0 to 32768 BUG at fs/jfs/jfs_dmap.c:2949 assert(n < 4) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_dmap.c:2949! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5591 Comm: syz-executor.0 Not tainted 6.3.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 RIP: 0010:dbFindLeaf+0x3ac/0x3b0 Code: 20 03 ff 48 89 da e9 4e ff ff ff 48 c7 c7 60 4b a1 89 48 c7 c6 a0 48 a1 89 ba 85 0b 00 00 48 c7 c1 40 56 a1 89 e8 e4 16 76 06 <0f> 0b 66 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 60 48 89 fe 48 RSP: 0018:ffffc90004f8f2e0 EFLAGS: 00010246 RAX: 000000000000002b RBX: ffff88807192103d RCX: 9f070eb4d98a7c00 RDX: 0000000000000001 RSI: ffffffff89bb1560 RDI: 0000000000000001 RBP: 00000000001cb703 R08: dffffc0000000000 R09: fffff520009f1e19 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888071921010 R13: 0000000000000019 R14: 0000000000000000 R15: 000000000000001c FS: 00007fd87d42f700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd104ee5638 CR3: 0000000073aa3000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dbAllocDmapLev+0x9e/0x3a0 dbAlloc+0x695/0xa70 extAlloc+0x42a/0xd90 jfs_get_block+0x2cc/0xb90 __block_write_begin_int+0x37f/0x1240 block_write_begin+0x72/0x150 jfs_write_begin+0x29/0x50 generic_perform_write+0x2b6/0x500 __generic_file_write_iter+0x143/0x340 generic_file_write_iter+0x9d/0x230 do_iter_write+0x63b/0xaa0 do_writev+0x1df/0x3a0 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fd87c28a5a9 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:00007fd87d42f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007fd87c3abf80 RCX: 00007fd87c28a5a9 RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007fd87c2e5580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff768aa28f R14: 00007fd87d42f300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dbFindLeaf+0x3ac/0x3b0 Code: 20 03 ff 48 89 da e9 4e ff ff ff 48 c7 c7 60 4b a1 89 48 c7 c6 a0 48 a1 89 ba 85 0b 00 00 48 c7 c1 40 56 a1 89 e8 e4 16 76 06 <0f> 0b 66 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 60 48 89 fe 48 RSP: 0018:ffffc90004f8f2e0 EFLAGS: 00010246 RAX: 000000000000002b RBX: ffff88807192103d RCX: 9f070eb4d98a7c00 RDX: 0000000000000001 RSI: ffffffff89bb1560 RDI: 0000000000000001 RBP: 00000000001cb703 R08: dffffc0000000000 R09: fffff520009f1e19 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888071921010 R13: 0000000000000019 R14: 0000000000000000 R15: 000000000000001c FS: 00007fd87d42f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdfc1790900 CR3: 0000000073aa3000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400