8:42 a.m.
I have installed kdump with all the requirement to be able to get the details of the
crash.
[ 6474.803105] BUG: kernel NULL pointer dereference, address: 0000000000000014
[ 6474.803174] #PF: supervisor read access in kernel mode
[ 6474.803215] #PF: error_code(0x0000) - not-present page
[ 6474.803256] PGD 0 P4D 0
[ 6474.803284] Oops: 0000 [#1] SMP PTI
[ 6474.803317] CPU: 13 PID: 17818 Comm: kworker/13:0 Kdump: loaded Tainted: G W
5.3.2-1.el7.elrepo.x86_64 $
[ 6474.803396] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[ 6474.803449] Workqueue: events key_garbage_collector
[ 6474.803494] RIP: 0010:keyring_gc_check_iterator+0x33/0x40
[ 6474.803557] Code: 55 48 8b 0e f6 87 80 00 00 00 21 b8 01 00 00 00 48 89 e5 75 19 48 8b
57 58 48 85 d2 7e 05 48 39 d1 7$
[ 6474.803692] RSP: 0018:ffffc9000277fd90 EFLAGS: 00010246
[ 6474.803734] RAX: 0000000000000000 RBX: ffff888424da26d0 RCX: 000000005db6ff0d
[ 6474.803788] RDX: 0000000000000000 RSI: ffffc9000277fdf8 RDI: ffff8883bb51a800
[ 6474.803841] RBP: ffffc9000277fd90 R08: 000073746e657665 R09: 8080808080808080
[ 6474.803894] R10: ffff88842d8000f8 R11: 0000000000000000 R12: ffff888424da2750
[ 6474.803953] R13: ffffffff813791c0 R14: ffff888424da26c0 R15: ffff8883bb51a800
[ 6474.804008] FS: 0000000000000000(0000) GS:ffff88842fb40000(0000)
knlGS:0000000000000000
[ 6474.804069] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6474.804113] CR2: 0000000000000014 CR3: 000000000220a003 CR4: 00000000003606e0
[ 6474.804174] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 6474.804228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 6474.804281] Call Trace:
[ 6474.804313] assoc_array_subtree_iterate+0x68/0xe0
[ 6474.804353] assoc_array_iterate+0x1b/0x20
[ 6474.804388] keyring_gc+0x43/0x80
[ 6474.804420] key_garbage_collector+0x161/0x400
[ 6474.804461] process_one_work+0x179/0x390
[ 6474.804497] worker_thread+0x4f/0x3e0
[ 6474.804530] kthread+0x105/0x140
[ 6474.804578] ? max_active_store+0x80/0x80
[ 6474.804612] ? kthread_bind+0x20/0x20
[ 6474.804647] ret_from_fork+0x35/0x40
[ 6474.804678] Modules linked in: binfmt_misc rpcsec_gss_krb5 auth_rpcgss nfsv4
dns_resolver nfs lockd grace fscache nfit$
[ 6474.805200] CR2: 0000000000000014
It is an issue with key_garbage_collector but I have no clue on how to fix it !
André