ci2 starts bisection 2023-06-22 04:33:35.629466789 +0000 UTC m=+114599.858425042 bisecting fixing commit since aeba12b26c79fc35e07e511f692a8907037d95da building syzkaller on c52b2efbf83e9d66fa9fa7b5416aa8eb4b839f20 ensuring issue is reproducible on original commit aeba12b26c79fc35e07e511f692a8907037d95da testing commit aeba12b26c79fc35e07e511f692a8907037d95da gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 1dbae5d7e019b232b6a0611606de719b05a2f4398dfde5c24f01357300972da0 run #0: crashed: general protection fault in txEnd run #1: crashed: general protection fault in txEnd run #2: crashed: general protection fault in txEnd run #3: crashed: general protection fault in txEnd run #4: crashed: general protection fault in txEnd run #5: crashed: general protection fault in txEnd run #6: crashed: general protection fault in txEnd run #7: crashed: kernel BUG in txEnd run #8: crashed: general protection fault in txEnd run #9: crashed: general protection fault in txEnd run #10: crashed: general protection fault in txEnd run #11: crashed: general protection fault in txEnd run #12: crashed: general protection fault in txEnd run #13: crashed: general protection fault in txEnd run #14: crashed: general protection fault in txEnd run #15: crashed: general protection fault in txEnd run #16: crashed: general protection fault in txEnd run #17: crashed: general protection fault in txEnd run #18: crashed: general protection fault in txEnd run #19: crashed: general protection fault in txEnd testing current HEAD dad9774deaf1cf8e8f7483310dfb2690310193d2 testing commit dad9774deaf1cf8e8f7483310dfb2690310193d2 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 0701c358fac8313816b8a403976fecf6d8165fd434d1c6672e6805ca1d5d0702 all runs: crashed: general protection fault in txEnd crash still not fixed/happens on the oldest tested release revisions tested: 2, total time: 55m43.969512056s (build: 47m28.826864941s, test: 6m44.148283249s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: Merge tag 'timers-urgent-2023-06-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip crash: general protection fault in txEnd read_mapping_page failed! ERROR: (device loop0): txCommit: general protection fault, probably for non-canonical address 0xdffffc0000000029: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000148-0x000000000000014f] CPU: 0 PID: 5449 Comm: syz-executor.0 Not tainted 6.4.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:txEnd+0x194/0x4a0 Code: b6 44 3d 00 84 c0 0f 85 65 02 00 00 66 44 89 33 0f b7 44 24 04 89 05 5b b8 e2 0d 49 8d ac 24 4c 01 00 00 48 89 e8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 56 02 00 00 ff 4d 00 75 4a 49 8d 6c 24 RSP: 0018:ffffc90004bef9f8 EFLAGS: 00010203 RAX: 0000000000000029 RBX: ffffc90002241138 RCX: ffffffff8c2d9403 RDX: ffffc90002241110 RSI: ffffffff89ea88e0 RDI: 0000000000000001 RBP: 000000000000014c R08: dffffc0000000000 R09: fffffbfff1e19042 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000110 R14: 0000000000000002 R15: dffffc0000000000 FS: 00007f19c8f5f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f19c8f81000 CR3: 000000007e2c1000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: jfs_readdir+0x29bf/0x4290 iterate_dir+0x1fe/0x500 __se_sys_getdents+0x1d3/0x430 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f19c828c0d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f19c8f5f168 EFLAGS: 00000246 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007f19c83ac050 RCX: 00007f19c828c0d9 RDX: 000000000000004c RSI: 0000000020000100 RDI: 0000000000000004 RBP: 00007f19c82e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe9682a51f R14: 00007f19c8f5f300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txEnd+0x194/0x4a0 Code: b6 44 3d 00 84 c0 0f 85 65 02 00 00 66 44 89 33 0f b7 44 24 04 89 05 5b b8 e2 0d 49 8d ac 24 4c 01 00 00 48 89 e8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 56 02 00 00 ff 4d 00 75 4a 49 8d 6c 24 RSP: 0018:ffffc90004bef9f8 EFLAGS: 00010203 RAX: 0000000000000029 RBX: ffffc90002241138 RCX: ffffffff8c2d9403 RDX: ffffc90002241110 RSI: ffffffff89ea88e0 RDI: 0000000000000001 RBP: 000000000000014c R08: dffffc0000000000 R09: fffffbfff1e19042 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000110 R14: 0000000000000002 R15: dffffc0000000000 FS: 00007f19c8f5f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f19c8f81000 CR3: 000000007e2c1000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: b6 44 mov $0x44,%dh 2: 3d 00 84 c0 0f cmp $0xfc08400,%eax 7: 85 65 02 test %esp,0x2(%rbp) a: 00 00 add %al,(%rax) c: 66 44 89 33 mov %r14w,(%rbx) 10: 0f b7 44 24 04 movzwl 0x4(%rsp),%eax 15: 89 05 5b b8 e2 0d mov %eax,0xde2b85b(%rip) # 0xde2b876 1b: 49 8d ac 24 4c 01 00 lea 0x14c(%r12),%rbp 22: 00 23: 48 89 e8 mov %rbp,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 56 02 00 00 jne 0x28d 37: ff 4d 00 decl 0x0(%rbp) 3a: 75 4a jne 0x86 3c: 49 rex.WB 3d: 8d .byte 0x8d 3e: 6c insb (%dx),%es:(%rdi) 3f: 24 .byte 0x24