------------[ cut here ]------------ kernel BUG at mm/slab.c:2961! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 28276 Comm: blkid Not tainted 5.0.0-rc7+ #93 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:alloc_block mm/slab.c:2961 [inline] RIP: 0010:cache_alloc_refill mm/slab.c:3020 [inline] RIP: 0010:____cache_alloc mm/slab.c:3123 [inline] RIP: 0010:____cache_alloc mm/slab.c:3106 [inline] RIP: 0010:__do_cache_alloc mm/slab.c:3345 [inline] RIP: 0010:slab_alloc mm/slab.c:3380 [inline] RIP: 0010:kmem_cache_alloc+0x5fb/0x6f0 mm/slab.c:3548 Code: 45 c8 4c 89 62 08 48 89 53 08 48 89 4b 10 4c 89 60 48 41 f6 45 23 40 0f 84 3d ff ff ff 48 c7 43 20 00 00 00 00 e9 30 ff ff ff <0f> 0b 0f 0b c7 46 0c 01 00 00 00 e9 42 ff ff ff 0f 1f 44 00 00 8b RSP: 0018:ffff88806dbbfd48 EFLAGS: 00010092 RAX: 0000000000000001 RBX: ffffea0001ac8e80 RCX: ffffffff81a6c2b6 RDX: ffff88812c2b8838 RSI: 0000000000000004 RDI: ffff88812c2b8800 RBP: ffff88806dbbfdb0 R08: 1ffff11025857100 R09: ffffed1025857101 R10: ffffed1025857100 R11: ffff88812c2b8803 R12: ffff88812c291180 R13: ffff88812c291180 R14: 0000000000000004 R15: ffffe8ffffd04460 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff4875f020 CR3: 000000009995b000 CR4: 00000000001406e0 Call Trace: getname_flags fs/namei.c:140 [inline] getname_flags+0xd6/0x5b0 fs/namei.c:129 user_path_at_empty+0x2f/0x50 fs/namei.c:2608 user_path_at include/linux/namei.h:57 [inline] do_faccessat+0x24b/0x7f0 fs/open.c:378 __do_sys_access fs/open.c:430 [inline] __se_sys_access fs/open.c:428 [inline] __x64_sys_access+0x59/0x80 fs/open.c:428 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f78fadff267 Code: 73 01 c3 48 8d 0d 3d af 20 00 31 d2 48 29 c2 89 11 48 83 c8 ff eb eb 90 90 90 90 90 90 90 90 90 90 90 90 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8d 0d 0d af 20 00 31 d2 48 29 c2 89 RSP: 002b:00007fff48708c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f78fadff267 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f78fae032e6 RBP: 00007fff48708cd0 R08: 0000000000000054 R09: 0000000000000000 R10: 00007fff4875f120 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000004 R14: 00007f78fb00a758 R15: 00007f78fae03931 Modules linked in: ---[ end trace 0bfbb12f0bd53a8d ]--- RIP: 0010:alloc_block mm/slab.c:2961 [inline] RIP: 0010:cache_alloc_refill mm/slab.c:3020 [inline] RIP: 0010:____cache_alloc mm/slab.c:3123 [inline] RIP: 0010:____cache_alloc mm/slab.c:3106 [inline] RIP: 0010:__do_cache_alloc mm/slab.c:3345 [inline] RIP: 0010:slab_alloc mm/slab.c:3380 [inline] RIP: 0010:kmem_cache_alloc+0x5fb/0x6f0 mm/slab.c:3548 Code: 45 c8 4c 89 62 08 48 89 53 08 48 89 4b 10 4c 89 60 48 41 f6 45 23 40 0f 84 3d ff ff ff 48 c7 43 20 00 00 00 00 e9 30 ff ff ff <0f> 0b 0f 0b c7 46 0c 01 00 00 00 e9 42 ff ff ff 0f 1f 44 00 00 8b RSP: 0018:ffff88806dbbfd48 EFLAGS: 00010092 RAX: 0000000000000001 RBX: ffffea0001ac8e80 RCX: ffffffff81a6c2b6 RDX: ffff88812c2b8838 RSI: 0000000000000004 RDI: ffff88812c2b8800 RBP: ffff88806dbbfdb0 R08: 1ffff11025857100 R09: ffffed1025857101 R10: ffffed1025857100 R11: ffff88812c2b8803 R12: ffff88812c291180 R13: ffff88812c291180 R14: 0000000000000004 R15: ffffe8ffffd04460 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff4875f020 CR3: 000000009995b000 CR4: 00000000001406e0