ci2 starts bisection 2023-01-25 05:11:55.789275669 +0000 UTC m=+141806.769859080 bisecting fixing commit since 493ffd6605b2d3d4dc7008ab927dba319f36671f building syzkaller on 16a9c9e0fe35ce296944c5682f4a54d52bd67e71 ensuring issue is reproducible on original commit 493ffd6605b2d3d4dc7008ab927dba319f36671f testing commit 493ffd6605b2d3d4dc7008ab927dba319f36671f gcc compiler: Debian clang version 13.0.1-6~deb11u1, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 89af32f0f2f23b3b7d1fe3beddcbb631019ef8a505751b77e18ae0ac4f29d08c run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: failed to write control pipe: write |NUM: broken pipe run #1: crashed: general protection fault in dtInsert run #2: crashed: general protection fault in dtInsert run #3: crashed: general protection fault in dtInsert run #4: crashed: general protection fault in dtInsert run #5: crashed: general protection fault in dtInsert run #6: crashed: general protection fault in dtInsert run #7: crashed: general protection fault in dtInsert run #8: crashed: general protection fault in dtInsert run #9: crashed: general protection fault in dtInsert run #10: crashed: general protection fault in dtInsert run #11: crashed: general protection fault in dtInsert run #12: crashed: general protection fault in dtInsert run #13: crashed: general protection fault in dtInsert run #14: crashed: general protection fault in dtInsert run #15: crashed: general protection fault in dtInsert run #16: crashed: general protection fault in dtInsert run #17: crashed: general protection fault in dtInsert run #18: crashed: general protection fault in dtInsert run #19: boot failed: possible deadlock in vivid_update_format_cap testing current HEAD 948ef7bb70c4acaf74d87420ea3a1190862d4548 testing commit 948ef7bb70c4acaf74d87420ea3a1190862d4548 gcc compiler: Debian clang version 13.0.1-6~deb11u1, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 609959ef3e4787a194ffb9e5fd8b9d89badeef5c838236d6d030be4e417256b2 all runs: crashed: general protection fault in dtInsert revisions tested: 2, total time: 47m13.977678625s (build: 32m39.310657697s, test: 12m4.833865784s) the crash still happens on HEAD commit msg: Merge tag 'modules-6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux crash: general protection fault in dtInsert loop0: detected capacity change from 0 to 32768 general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 5591 Comm: syz-executor.0 Not tainted 6.2.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:dtExtendPage fs/jfs/jfs_dtree.c:1661 [inline] RIP: 0010:dtSplitUp fs/jfs/jfs_dtree.c:1034 [inline] RIP: 0010:dtInsert+0x2ebe/0x6c10 fs/jfs/jfs_dtree.c:863 Code: 10 00 48 8b 5c 24 08 74 12 48 89 df e8 9b c3 fc fe 48 ba 00 00 00 00 00 fc ff df 4c 89 2b eb 03 45 31 ed 4d 89 ee 49 c1 ee 03 <41> 80 3c 16 00 74 08 4c 89 ef e8 f3 c2 fc fe 49 8b 75 00 48 85 f6 RSP: 0018:ffffc90004dd76c0 EFLAGS: 00010246 RAX: ffffc90004dd7c10 RBX: ffffc90004dd7c00 RCX: 1ffff920009baf31 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc90004dd7982 RBP: ffffc90004dd7b30 R08: dffffc0000000000 R09: fffff940001333c7 R10: fffff940001333c7 R11: 1ffffd40001333c6 R12: ffff888076273270 R13: 0000000000000000 R14: 0000000000000000 R15: 1ffff920009baf28 FS: 00007f8eb2a9b700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4c137f117c CR3: 000000007716b000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: jfs_create+0x5de/0x960 fs/jfs/namei.c:137 vfs_create+0x25e/0x3b0 fs/namei.c:3115 do_mknodat+0x31d/0x620 fs/namei.c:3965 __do_sys_mknodat fs/namei.c:3993 [inline] __se_sys_mknodat fs/namei.c:3990 [inline] __x64_sys_mknodat+0xa0/0xb0 fs/namei.c:3990 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f8eb188b5a9 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:00007f8eb2a9b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000103 RAX: ffffffffffffffda RBX: 00007f8eb19abf80 RCX: 00007f8eb188b5a9 RDX: 0000000000000008 RSI: 0000000020000180 RDI: 0000000000000003 RBP: 00007f8eb18e6580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000103 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd3963f87f R14: 00007f8eb2a9b300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dtExtendPage fs/jfs/jfs_dtree.c:1661 [inline] RIP: 0010:dtSplitUp fs/jfs/jfs_dtree.c:1034 [inline] RIP: 0010:dtInsert+0x2ebe/0x6c10 fs/jfs/jfs_dtree.c:863 Code: 10 00 48 8b 5c 24 08 74 12 48 89 df e8 9b c3 fc fe 48 ba 00 00 00 00 00 fc ff df 4c 89 2b eb 03 45 31 ed 4d 89 ee 49 c1 ee 03 <41> 80 3c 16 00 74 08 4c 89 ef e8 f3 c2 fc fe 49 8b 75 00 48 85 f6 RSP: 0018:ffffc90004dd76c0 EFLAGS: 00010246 RAX: ffffc90004dd7c10 RBX: ffffc90004dd7c00 RCX: 1ffff920009baf31 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc90004dd7982 RBP: ffffc90004dd7b30 R08: dffffc0000000000 R09: fffff940001333c7 R10: fffff940001333c7 R11: 1ffffd40001333c6 R12: ffff888076273270 R13: 0000000000000000 R14: 0000000000000000 R15: 1ffff920009baf28 FS: 00007f8eb2a9b700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4c137f117c CR3: 000000007716b000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 10 00 adc %al,(%rax) 2: 48 8b 5c 24 08 mov 0x8(%rsp),%rbx 7: 74 12 je 0x1b 9: 48 89 df mov %rbx,%rdi c: e8 9b c3 fc fe callq 0xfefcc3ac 11: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 18: fc ff df 1b: 4c 89 2b mov %r13,(%rbx) 1e: eb 03 jmp 0x23 20: 45 31 ed xor %r13d,%r13d 23: 4d 89 ee mov %r13,%r14 26: 49 c1 ee 03 shr $0x3,%r14 * 2a: 41 80 3c 16 00 cmpb $0x0,(%r14,%rdx,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 ef mov %r13,%rdi 34: e8 f3 c2 fc fe callq 0xfefcc32c 39: 49 8b 75 00 mov 0x0(%r13),%rsi 3d: 48 85 f6 test %rsi,%rsi