1965969 pages RAM 0*4096kB 0 pages HighMem/MovableOnly 107595 pages reserved = 15424kB BUG: unable to handle kernel NULL pointer dereference at 00000000000008f4 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB PGD 800000018a036067 P4D 800000018a036067 PUD 18a039067 PMD 0 Oops: 0002 [#1] SMP PTI CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 4.18.0-rc5+ #28 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 136 total pagecache pages Workqueue: (null) (events_unbound) RIP: 0010:memset_erms+0x9/0x10 arch/x86/lib/memset_64.S:65 Code: 0 pages in swap cache c1 e9 03 40 0f b6 f6 48 b8 01 01 Swap cache stats: add 0, delete 0, find 0/0 01 01 01 01 01 01 48 0f af c6 f3 Free swap = 0kB 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 Total swap = 0kB 49 89 f9 40 88 f0 48 89 d1 1965969 pages RAM aa 4c 89 c8 c3 90 49 89 fa 40 0f 0 pages HighMem/MovableOnly b6 ce 48 b8 01 01 01 01 01 01 107595 pages reserved RSP: 0000:ffff8801d155fa18 EFLAGS: 00010046 RAX: 0000000000000000 RBX: fffffffffffffff4 RCX: 0000000000000fb0 RDX: 0000000000000fb0 RSI: 0000000000000000 RDI: 00000000000008f4 RBP: ffff8801d155fa28 R08: 0000000000000000 R09: 00000000000008f4 R10: 0000000000000000 R11: ffffffff81363150 R12: ffff8801d144c400 Unreclaimable slab info: R13: 0000000000000000 R14: 0000000000000292 R15: fffffffffffffff4 FS: 0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000b0 CR3: 000000018a1c2000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Name Used Total DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kmsan_thread_create+0x58/0xb0 mm/kmsan/kmsan_hooks.c:30 SCTPv6 63KB 63KB __kthread_create_on_node+0x6e5/0x7f0 kernel/kthread.c:339 kthread_create_on_node+0x278/0x2c0 kernel/kthread.c:375 DCCPv6 31KB 31KB create_worker+0x7a0/0x1040 kernel/workqueue.c:1813 DCCP 30KB 30KB maybe_create_worker kernel/workqueue.c:1972 [inline] manage_workers kernel/workqueue.c:2024 [inline] worker_thread+0x876/0x2490 kernel/workqueue.c:2268 kthread+0x473/0x4b0 kernel/kthread.c:247 RAWv6 15KB 15KB ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:415 UDPv6 30KB 30KB Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) CR2: 00000000000008f4 ---[ end trace 79f6f1b377c4d80d ]--- TCPv6 31KB 31KB RIP: 0010:memset_erms+0x9/0x10 arch/x86/lib/memset_64.S:65 Code: c1 e9 03 40 nf_conntrack 7KB 7KB 0f b6 f6 48 b8 01 01 01 01 01 01 scsi_sense_cache 1096KB 1096KB 01 01 48 0f af c6 f3 48 ab 89 sgpool-128 32KB 32KB d1 f3 aa 4c 89 c8 c3 90 49 89 mqueue_inode_cache 15KB 15KB f9 40 88 f0 48 89 d1 aa 4c 89 nfs_commit_data 15KB 15KB c8 c3 90 49 89 fa 40 0f b6 ce 48 nfs_read_data 31KB 31KB b8 01 01 01 01 01 01 RSP: 0000:ffff8801d155fa18 EFLAGS: 00010046 RAX: 0000000000000000 RBX: fffffffffffffff4 RCX: 0000000000000fb0 RDX: 0000000000000fb0 RSI: 0000000000000000 RDI: 00000000000008f4 RBP: ffff8801d155fa28 R08: 0000000000000000 R09: 00000000000008f4 pid_namespace 3KB 3KB R10: 0000000000000000 R11: ffffffff81363150 R12: ffff8801d144c400 R13: 0000000000000000 R14: 0000000000000292 R15: fffffffffffffff4 FS: 0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000000b0 CR3: 000000018a1c2000 CR4: 00000000001406e0 secpath_cache 12KB 12KB DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400