sysfs: cannot create duplicate filename '/fs/gfs2/gfs2' sysfs: cannot create duplicate filename '/fs/gfs2/gfs2' sysfs: cannot create duplicate filename '/fs/gfs2/gfs2' ------------[ cut here ]------------ ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6337 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x2d fs/sysfs/dir.c:30 WARNING: CPU: 1 PID: 6331 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x2d fs/sysfs/dir.c:30 Kernel panic - not syncing: panic_on_warn set ... Modules linked in: CPU: 0 PID: 6337 Comm: syz-executor754 Not tainted 4.14.182-syzkaller #0 CPU: 1 PID: 6331 Comm: syz-executor754 Not tainted 4.14.182-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88809ffe4600 task.stack: ffff888098698000 Call Trace: RIP: 0010:sysfs_warn_dup.cold+0x17/0x2d fs/sysfs/dir.c:30 __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 RSP: 0018:ffff88809869f7c0 EFLAGS: 00010286 panic+0x1f9/0x42d kernel/panic.c:183 RAX: 0000000000000037 RBX: ffff888099054950 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff868c0980 RDI: ffffed10130d3eee RBP: ffff888094636840 R08: 0000000000000037 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a65fb2a0 R13: ffff8880a993b9c0 R14: ffff888099054968 R15: ffff88809a138918 FS: 0000000001b22880(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000 __warn.cold+0x2f/0x30 kernel/panic.c:547 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005570866bba80 CR3: 000000009a113000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 report_bug+0x20a/0x248 lib/bug.c:186 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295 sysfs_create_dir_ns+0x16f/0x1d0 fs/sysfs/dir.c:59 create_dir lib/kobject.c:71 [inline] kobject_add_internal+0x27f/0x830 lib/kobject.c:229 kobject_add_varg lib/kobject.c:364 [inline] kobject_init_and_add+0xde/0x120 lib/kobject.c:436 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964 RIP: 0010:sysfs_warn_dup.cold+0x17/0x2d fs/sysfs/dir.c:30 RSP: 0018:ffff8880990277c0 EFLAGS: 00010286 gfs2_sys_fs_add+0x184/0x3f0 fs/gfs2/sys.c:652 RAX: 0000000000000037 RBX: ffff8880986f4990 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff868c0980 RDI: ffffed1013204eee RBP: ffff88809d6b2940 R08: 0000000000000037 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a65fb2a0 R13: ffff8880a8bddb00 R14: ffff8880986f49a8 R15: ffff888099054958 fill_super+0x11a9/0x22a0 fs/gfs2/ops_fstype.c:1118 sysfs_create_dir_ns+0x16f/0x1d0 fs/sysfs/dir.c:59 create_dir lib/kobject.c:71 [inline] kobject_add_internal+0x27f/0x830 lib/kobject.c:229 kobject_add_varg lib/kobject.c:364 [inline] kobject_init_and_add+0xde/0x120 lib/kobject.c:436 gfs2_mount+0x42a/0x4f3 fs/gfs2/ops_fstype.c:1321 gfs2_sys_fs_add+0x184/0x3f0 fs/gfs2/sys.c:652 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x3c0 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0x3c9/0x25e0 fs/namespace.c:2879 fill_super+0x11a9/0x22a0 fs/gfs2/ops_fstype.c:1118 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3072 gfs2_mount+0x42a/0x4f3 fs/gfs2/ops_fstype.c:1321 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb mount_fs+0x92/0x2a0 fs/super.c:1237 RIP: 0033:0x447bca vfs_kern_mount.part.0+0x5b/0x3c0 fs/namespace.c:1046 RSP: 002b:00007ffedf0079f8 EFLAGS: 00000293 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0x3c9/0x25e0 fs/namespace.c:2879 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffedf007a00 RCX: 0000000000447bca RDX: 00007ffedf007a00 RSI: 0000000020000040 RDI: 00007ffedf007a20 RBP: 0000000000000003 R08: 00007ffedf007a60 R09: 000000000000000a R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffedf007a60 R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 Code: SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3072 d5 3e do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 8a e8 entry_SYSCALL_64_after_hwframe+0x46/0xbb b9 RIP: 0033:0x447bca 30 RSP: 002b:00007ffedf0079f8 EFLAGS: 00000293 dc ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffedf007a00 RCX: 0000000000447bca ff RDX: 00007ffedf007a00 RSI: 0000000020000040 RDI: 00007ffedf007a20 RBP: 0000000000000003 R08: 00007ffedf007a60 R09: 000000000000000a eb R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffedf007a60 d8 R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 e8 b2 30 dc ff e9 6d ff ff ff e8 78 ed b2 ff 4c 89 ea 48 89 ee 48 c7 c7 60 95 95 86 e8 61 cc a1 ff <0f> 0b 48 89 ef 5d 41 5c 41 5d e9 57 08 dc ff 90 90 90 90 90 90 ---[ end trace dd7a1ed5f3bee1e3 ]--- Kernel Offset: disabled Rebooting in 86400 seconds..