Ceph » Linux kernel client

[57998.714137] ceph: mds1 reconnect start
[57998.764030] ceph: mds1 reconnect success
[58002.783881] ceph: mds4 reconnect start
[58002.788700] ceph: mds4 reconnect success
[58004.820790] ceph: mds1 recovery completed
[58009.033896] ------------[ cut here ]------------
[58009.034495] kernel BUG at ../fs/ceph/mds_client.c:2625!
[58009.034495] invalid opcode: 0000 [#1] PREEMPT SMP
[58009.034495] Modules linked in: ceph libceph libcrc32c
[58009.034495] CPU: 1 PID: 13144 Comm: kworker/1:1 Tainted: G        W       4.10.0+ #20
[58009.034495] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-1.fc25 04/01/2014
[58009.034495] Workqueue: ceph-msgr ceph_con_workfn [libceph]
[58009.034495] task: ffff88003c8a0000 task.stack: ffffc900020e0000
[58009.034495] RIP: 0010:dispatch+0xdbb/0x1710 [ceph]
[58009.034495] RSP: 0018:ffffc900020e3ca8 EFLAGS: 00010202
[58009.034495] RAX: 00000000000000a8 RBX: ffff88003c233808 RCX: 0000000000000002
[58009.034495] RDX: 0000000000000000 RSI: 0000000000952244 RDI: ffff88003c233800
[58009.034495] RBP: ffffc900020e3d48 R08: 0000000000000000 R09: 04f004aa812c35a5
[58009.034495] R10: ffffffff827b69c0 R11: 0000000000000000 R12: 0000000000952244
[58009.034495] R13: ffff88003ca00900 R14: ffff88003cbe3000 R15: ffff88003c233800
[58009.034495] FS:  0000000000000000(0000) GS:ffff88003fd00000(0000) knlGS:0000000000000000
[58009.034495] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[58009.034495] CR2: 000055f578a98098 CR3: 000000003685a000 CR4: 00000000001406e0
[58009.034495] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[58009.034495] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

line 2625 is

BUG_ON(test_bit(CEPH_MDS_R_GOT_RESULT, &req->r_req_flags));