System panics at RIP kmem_cache_shrink+0xb8

Solution Verified - Updated -

Issue

  • System panics with following call traces in kernel ring buffer:
[173358.918187] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[173358.918196] IP: [<ffffffff811e0ee8>] kmem_cache_shrink+0xb8/0x250
[173358.918207] PGD 22318067 PUD 22319067 PMD 0 
[173358.918210] Oops: 0000 [#1] SMP 
[173358.918214] Modules linked in: sctp_diag sctp dccp_diag dccp tcp_diag udp_diag inet_diag unix_diag af_packet_diag netlink_diag cfg80211 rfkill
[173358.918314]  shpchp i2c_piix4 vmw_vmci nfsd auth_rpcgss nfs_acl lockd grace sunrpc ipip tunnel4 ip_tunnel xt_multiport xt_addrtype xt_mark bin
[173358.918357] CPU: 1 PID: 18650 Comm: kworker/1:1 Not tainted 3.10.0-693.el7.x86_64 #1
[173358.918359] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 04/14/2014
[173358.918366] Workqueue: events kmem_cache_destroy_work_func
[173358.918369] task: ffff88001823af70 ti: ffff88021239c000 task.ti: ffff88021239c000
[173358.918370] RIP: 0010:[<ffffffff811e0ee8>]  [<ffffffff811e0ee8>] kmem_cache_shrink+0xb8/0x250
[173358.918375] RSP: 0018:ffff88021239fda0  EFLAGS: 00010202
[173358.918377] RAX: 0000000000000000 RBX: ffff88017a3c0c00 RCX: ffff880091846600
[173358.918378] RDX: 0000000000000000 RSI: 0000000000000400 RDI: ffffffff81b1f5e0
[173358.918379] RBP: ffff88021239fe00 R08: ffffffff81b1f5e8 R09: ffffffff813227d9
[173358.918381] R10: ffff88043fc59c80 R11: ffffea0006a9ae00 R12: ffff88019cbf2d00
[173358.918383] R13: ffff88043fc56540 R14: ffff88043fc5a800 R15: 0000000000000000
[173358.918385] FS:  0000000000000000(0000) GS:ffff88043fc40000(0000) knlGS:0000000000000000
[173358.918387] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[173358.918388] CR2: 0000000000000008 CR3: 000000002231b000 CR4: 00000000000007e0
[173358.918427] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[173358.918475] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[173358.918477] Stack:
[173358.918479]  ffff88017a3c0d90 00000018202d0000 0000000000000246 ffff880091846600
[173358.918482]  0000000000000019 ffff8800b37d4a50 ffff88001d09ec00 ffff880091846600
[173358.918485]  ffff88019cbf2d00 ffff88043fc56540 ffff88043fc5a800 0000000000000040
[173358.918487] Call Trace:
[173358.918494]  [<ffffffff811f0005>] kmem_cache_destroy_work_func+0x55/0x70
[173358.918500]  [<ffffffff810a881a>] process_one_work+0x17a/0x440
[173358.918503]  [<ffffffff810a94e6>] worker_thread+0x126/0x3c0
[173358.918507]  [<ffffffff810a93c0>] ? manage_workers.isra.24+0x2a0/0x2a0
[173358.918511]  [<ffffffff810b098f>] kthread+0xcf/0xe0
[173358.918514]  [<ffffffff810b08c0>] ? insert_kthread_work+0x40/0x40
[173358.918519]  [<ffffffff816b4f18>] ret_from_fork+0x58/0x90
[173358.918522]  [<ffffffff810b08c0>] ? insert_kthread_work+0x40/0x40
[173358.918523] Code: 00 8b 45 c0 83 e8 01 89 45 ac 48 c1 e0 04 48 8d 44 03 10 48 89 45 a0 0f 1f 40 00 48 63 45 c4 48 8b 4d b8 4c 8b bc c1 c8 00 00 00  83 7f 08 00 0f 84 34 01 00 00 8b 55 c0 48 89 d8 85 d2 74 1b 
[173358.918549] RIP  [<ffffffff811e0ee8>] kmem_cache_shrink+0xb8/0x250
[173358.918553]  RSP <ffff88021239fda0>
[173358.918554] CR2: 0000000000000008

Environment

  • Red Hat Enterprise Linux 7
  • kernel-3.10.0-693.el7

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