ci2 starts bisection 2023-06-30 08:24:07.077184494 +0000 UTC m=+37859.280213447 bisecting fixing commit since a343b0dd87b42ba9d508fbf7d0c06f744c2e0954 building syzkaller on cf1845599c0bdab59c69518eaa0ecb960ec7ddf0 ensuring issue is reproducible on original commit a343b0dd87b42ba9d508fbf7d0c06f744c2e0954 testing commit a343b0dd87b42ba9d508fbf7d0c06f744c2e0954 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 09a7ff265841f905cc374225c80ec53f66b4f3072707bab2774964475530ee29 all runs: crashed: general protection fault in gfs2_dump_glock testing current HEAD a1c449d00ff8ce2c5fcea5f755df682d1f6bc2ef testing commit a1c449d00ff8ce2c5fcea5f755df682d1f6bc2ef gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 715119daf7926cacf9e0ae546e0ae86152606fa36eddca3cded967b868115a8e all runs: crashed: general protection fault in gfs2_dump_glock crash still not fixed/happens on the oldest tested release revisions tested: 2, total time: 51m17.81575505s (build: 39m10.041134055s, test: 11m15.761612122s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: Linux 6.1.36 crash: general protection fault in gfs2_dump_glock general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] CPU: 1 PID: 4889 Comm: syz-executor.0 Not tainted 6.1.36-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1466 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2335 [inline] RIP: 0010:gfs2_dump_glock+0xa34/0x16c0 fs/gfs2/glock.c:2449 Code: c6 05 fd df d1 09 01 48 c7 c7 00 e8 2e 8a be ed 02 00 00 48 c7 c2 40 e8 2e 8a e8 77 5b 06 fe 4d 8d 65 20 4d 89 e6 49 c1 ee 03 <41> 0f b6 04 1e 84 c0 0f 85 8c 05 00 00 41 f6 44 24 01 02 74 34 49 RSP: 0018:ffffc9000644f120 EFLAGS: 00010202 RAX: 0000000000000001 RBX: dffffc0000000000 RCX: ffff88801ea53b80 RDX: dffffc0000000000 RSI: ffffffff8a3b83a0 RDI: ffffffff8a3b8360 RBP: ffffc9000644f408 R08: dffffc0000000000 R09: fffffbfff1e01845 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000020 R13: 0000000000000000 R14: 0000000000000004 R15: dffffc0000000000 FS: 00007f7e2d9d2700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7e2428d000 CR3: 000000002161f000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_consist_inode_i+0xec/0x110 fs/gfs2/util.c:465 gfs2_dirent_scan+0x45a/0x530 fs/gfs2/dir.c:602 gfs2_dirent_search+0x29c/0x7b0 fs/gfs2/dir.c:850 gfs2_dir_search+0xa5/0x2f0 fs/gfs2/dir.c:1650 gfs2_lookupi+0x390/0x480 fs/gfs2/inode.c:323 __gfs2_lookup+0x97/0x210 fs/gfs2/inode.c:870 gfs2_atomic_open+0x8f/0x190 fs/gfs2/inode.c:1274 atomic_open fs/namei.c:3276 [inline] lookup_open fs/namei.c:3384 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0xd11/0x27e0 fs/namei.c:3711 do_filp_open+0x226/0x430 fs/namei.c:3741 do_sys_openat2+0x10b/0x420 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_open fs/open.c:1342 [inline] __se_sys_open fs/open.c:1338 [inline] __x64_sys_open+0x1eb/0x240 fs/open.c:1338 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: 0033:0x7f7e2cc8c169 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:00007f7e2d9d2168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f7e2cdac050 RCX: 00007f7e2cc8c169 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200025c0 RBP: 00007f7e2cce7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc682eb0df R14: 00007f7e2d9d2300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1466 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2335 [inline] RIP: 0010:gfs2_dump_glock+0xa34/0x16c0 fs/gfs2/glock.c:2449 Code: c6 05 fd df d1 09 01 48 c7 c7 00 e8 2e 8a be ed 02 00 00 48 c7 c2 40 e8 2e 8a e8 77 5b 06 fe 4d 8d 65 20 4d 89 e6 49 c1 ee 03 <41> 0f b6 04 1e 84 c0 0f 85 8c 05 00 00 41 f6 44 24 01 02 74 34 49 RSP: 0018:ffffc9000644f120 EFLAGS: 00010202 RAX: 0000000000000001 RBX: dffffc0000000000 RCX: ffff88801ea53b80 RDX: dffffc0000000000 RSI: ffffffff8a3b83a0 RDI: ffffffff8a3b8360 RBP: ffffc9000644f408 R08: dffffc0000000000 R09: fffffbfff1e01845 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000020 R13: 0000000000000000 R14: 0000000000000004 R15: dffffc0000000000 FS: 00007f7e2d9d2700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7e2428d000 CR3: 000000002161f000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: c6 05 fd df d1 09 01 movb $0x1,0x9d1dffd(%rip) # 0x9d1e004 7: 48 c7 c7 00 e8 2e 8a mov $0xffffffff8a2ee800,%rdi e: be ed 02 00 00 mov $0x2ed,%esi 13: 48 c7 c2 40 e8 2e 8a mov $0xffffffff8a2ee840,%rdx 1a: e8 77 5b 06 fe callq 0xfe065b96 1f: 4d 8d 65 20 lea 0x20(%r13),%r12 23: 4d 89 e6 mov %r12,%r14 26: 49 c1 ee 03 shr $0x3,%r14 * 2a: 41 0f b6 04 1e movzbl (%r14,%rbx,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 8c 05 00 00 jne 0x5c3 37: 41 f6 44 24 01 02 testb $0x2,0x1(%r12) 3d: 74 34 je 0x73 3f: 49 rex.WB