[LU-8201] replay-* tests randomly failing on rhel7

Sun, 24 Jul 2016 15:01:17 +0000
I seem to have this problem when replay-* tests are randomly failing with:
[15957.235861] BUG: unable to handle kernel paging request at ffff88005cc1ff52
[15957.236437] IP: [<ffffffff8138f9f7>] do_raw_spin_unlock+0x67/0x100
[15957.236980] PGD 2e76067 PUD bcc1a067 PMD bcb33067 PTE 800000005cc1f060
[15957.237541] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
[15957.262037] Modules linked in: lustre(OE) ofd(OE) osp(OE) lod(OE) ost(OE) mdt(OE) mdd(OE) mgs(OE) osd_ldiskfs(OE) ldiskfs(OE) lquota(OE) lfsck(OE) obdecho(OE) mgc(OE) lov(OE) osc(OE) mdc(OE) lmv(OE) fid(OE) fld(OE) ptlrpc(OE) obdclass(OE) ksocklnd(OE) lnet(OE) libcfs(OE) loop mbcache jbd2 sha512_generic crypto_null rpcsec_gss_krb5 syscopyarea sysfillrect sysimgblt ata_generic ttm pata_acpi drm_kms_helper ata_piix drm i2c_piix4 virtio_blk pcspkr virtio_balloon serio_raw libata virtio_console floppy i2c_core nfsd ip_tables [last unloaded: libcfs]
[15957.272846] CPU: 6 PID: 27995 Comm: e2label Tainted: G        W  OE  ------------   3.10.0-debug #1
[15957.273857] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[15957.274371] task: ffff88007944aa40 ti: ffff88007a100000 task.ti: ffff88007a100000
[15957.275325] RIP: 0010:[<ffffffff8138f9f7>]  [<ffffffff8138f9f7>] do_raw_spin_unlock+0x67/0x100
[15957.276342] RSP: 0018:ffff88007a103dc8  EFLAGS: 00010202
[15957.276852] RAX: 0000000000080006 RBX: ffff88005cc1ff50 RCX: 0000000000080006
[15957.277389] RDX: 0000000000000008 RSI: 0000000000000001 RDI: ffff88005cc1ff50
[15957.278345] RBP: ffff88007a103dd0 R08: 0000000000000000 R09: 0000000000000000
[15957.278942] R10: 0000000000000000 R11: 0000000000015340 R12: ffff88005cc1ff50
[15957.279484] R13: ffff880064b7fc50 R14: ffff88005cc1fef8 R15: ffff8800b23e9f20
[15957.280029] FS:  0000000000000000(0000) GS:ffff8800bc780000(0000) knlGS:0000000000000000
[15957.281205] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[15957.281723] CR2: ffff88005cc1ff52 CR3: 0000000001c0e000 CR4: 00000000000006e0
[15957.282277] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[15957.282823] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[15957.283375] Stack:
[15957.284922]  ffff88005cc1ff50 ffff88007a103de8 ffffffff81707e97 ffff88005cc1ff50
[15957.285933]  ffff88007a103e00 ffffffff81386f35 ffff88005cc1fef8 ffff88007a103e20
[15957.286917]  ffffffff812060a0 ffff88007359be00 0000000000000008 ffff88007a103e68
[15957.288006] Call Trace:
[15957.288471]  [<ffffffff81707e97>] _raw_spin_unlock+0x27/0x40
[15957.288991]  [<ffffffff81386f35>] lockref_put_or_lock+0x25/0x30
[15957.289510]  [<ffffffff812060a0>] dput+0x20/0xe0
[15957.290012]  [<ffffffff811f009c>] __fput+0x1ac/0x310
[15957.290514]  [<ffffffff811f02de>] ____fput+0xe/0x10
[15957.291026]  [<ffffffff810a04b4>] task_work_run+0xb4/0xe0
[15957.291544]  [<ffffffff8107d942>] do_exit+0x2f2/0xb60
[15957.292059]  [<ffffffff811ee220>] ? vfs_write+0x160/0x1e0
[15957.292570]  [<ffffffff81386b09>] ? lockdep_sys_exit_thunk+0x35/0x67
[15957.293160]  [<ffffffff8107e23c>] do_group_exit+0x4c/0xc0
[15957.293748]  [<ffffffff8107e2c4>] SyS_exit_group+0x14/0x20
[15957.294346]  [<ffffffff81711809>] system_call_fastpath+0x16/0x1b
[15957.294952] Code: 1c a0 00 00 39 43 08 75 51 48 c7 43 10 ff ff ff ff c7 43 08 ff ff ff ff e9 07 00 00 00 66 83 03 02 5b 5d c3 8b 03 f0 66 83 03 02 <f6> 43 02 01 74 f0 89 c2 8d 40 02 66 89 c2 89 d1 81 e1 ff ff fe 
[15957.297322] RIP  [<ffffffff8138f9f7>] do_raw_spin_unlock+0x67/0x100
[15957.297863]  RSP <ffff88007a103dc8>
[15957.298336] CR2: ffff88005cc1ff52
Whamcloud Community JIRA

[LU-8201] replay-* tests randomly failing on rhel7
