dev test in ubuntu_stress_smoke_test cause kernel oops on P-3.13

[Po-Hsu Lin]

This is a KVM node with 3.13 kernel on Precise

$ uname -a
Linux curly 3.13.0-160-generic #210~precise1-Ubuntu SMP Tue Sep 25 09:35:34 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

The dev test in ubuntu_stress_smoke_test will cause kernel oops (this is the only failure on P-3.13):
  dev FAILED (kernel oopsed)
  [268333.009646] xor: measuring software checksum speed
  [268333.048020] prefetch64-sse: 10273.000 MB/sec
  [268333.088021] generic_sse: 9554.000 MB/sec
  [268333.088025] xor: using function: prefetch64-sse (10273.000 MB/sec)
  [268333.151275] hidraw: raw HID events driver (C) Jiri Kosina
  [268333.612017] raid6: sse2x1 7145 MB/s
  [268333.665700] Bluetooth: Core ver 2.17
  [268333.665725] NET: Registered protocol family 31
  [268333.665728] Bluetooth: HCI device and connection manager initialized
  [268333.665739] Bluetooth: HCI socket layer initialized
  [268333.665742] Bluetooth: L2CAP socket layer initialized
  [268333.665746] Bluetooth: SCO socket layer initialized
  [268333.680015] raid6: sse2x2 9033 MB/s
  [268333.718996] Bluetooth: Virtual HCI driver ver 1.4
  [268333.748015] raid6: sse2x4 10006 MB/s
  [268333.748018] raid6: using algorithm sse2x4 (10006 MB/s)
  [268333.748020] raid6: using intx1 recovery algorithm
  [268333.851404] bio: create slab <bio-1> at 1
  [268333.856928] Btrfs loaded
  [268334.002833] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.002839] PM: Basic memory bitmaps created
  [268334.008502] PM: Basic memory bitmaps freed
  [268334.008617] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.008622] PM: Basic memory bitmaps created
  [268334.020166] PM: Basic memory bitmaps freed
  [268334.025983] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.025988] PM: Basic memory bitmaps created
  [268334.032204] PM: Basic memory bitmaps freed
  [268334.032275] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.032280] PM: Basic memory bitmaps created
  [268334.036261] PM: Basic memory bitmaps freed
  [268334.045207] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.045213] PM: Basic memory bitmaps created
  [268334.050369] PM: Basic memory bitmaps freed
  [268334.093394] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.093399] PM: Basic memory bitmaps created
  [268334.096626] PM: Basic memory bitmaps freed
  [268334.101374] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.101377] PM: Basic memory bitmaps created
  [268334.104819] PM: Basic memory bitmaps freed
  [268334.107406] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.107409] PM: Basic memory bitmaps created
  [268334.111058] PM: Basic memory bitmaps freed
  [268334.113678] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.113681] PM: Basic memory bitmaps created
  [268334.115135] BUG: unable to handle kernel NULL pointer dereference at (null)
  [268334.116901] PM: Basic memory bitmaps freed
  [268334.116017] IP: [<ffffffff81395014>] memset+0x24/0xb0
  [268334.116017] PGD 80000000356cb067 PUD 3a8af067 PMD 0
  [268334.116017] Oops: 0002 [#1] SMP
  [268334.133824] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.133827] PM: Basic memory bitmaps created
  [268334.137236] PM: Basic memory bitmaps freed
  [268334.139918] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.139920] PM: Basic memory bitmaps created
  [268334.116017] Modules linked in: btrfs hci_vhci bluetooth raid6_pq autofs4 uhid hid xor dccp_ipv4 dccp ghash_generic salsa20_generic salsa20_x86_64 camellia_generic camellia_x86_64 cast6_generic cast_common serpent_sse2_x86_64 serpent_generic twofish_generic ablk_helper cryptd twofish_x86_64_3way glue_helper twofish_x86_64 twofish_common xts lrw gf128mul algif_skcipher tgr192 wp512 rmd320 rmd256 rmd160 rmd128 md4 algif_hash af_alg openvswitch ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 vxlan nf_nat_ipv4 nf_nat nf_conntrack ip_tunnel gre libcrc32c ip_tables x_tables bridge stp llc ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi dm_crypt kvm_intel kvm psmouse serio_raw mac_hid i2c_piix4 cirrus ttm drm_kms_helper floppy drm<7>[268334.143146] PM: Basic memory bitmaps freed
  [268334.116017] sysimgblt sysfillrect syscopyarea pata_acpi
  [268334.116017] CPU: 1 PID: 8630 Comm: stress-ng-dev Not tainted 3.13.0-160-generic #210~precise1-Ubuntu
  [268334.145579] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.145580] PM: Basic memory bitmaps created
  [268334.116017] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
  [268334.148961] PM: Basic memory bitmaps freed
  [268334.116017] task: ffff88003b099800 ti: ffff88000615a000 task.ti: ffff88000615a000
  [268334.151555] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.151557] PM: Basic memory bitmaps created
  [268334.154776] PM: Basic memory bitmaps freed
  [268334.116017] RIP: 0010:[<ffffffff81395014>] [<ffffffff81395014>] memset+0x24/0xb0
  [268334.116017] RSP: 0018:ffff88000615bdc0 EFLAGS: 00010206
  [268334.157158] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.157160] PM: Basic memory bitmaps created
  [268334.116017] RAX: 0000000000000000 RBX: ffff880035ebcc00 RCX: 0000000000000004
  [268334.160786] PM: Basic memory bitmaps freed
  [268334.116017] RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000000
  [268334.163384] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.163406] PM: Basic memory bitmaps created
  [268334.116017] RBP: ffff88000615bed8 R08: ffffffff81c426c0 R09: 0000000000000000
  [268334.166633] PM: Basic memory bitmaps freed
  [268334.116017] R10: 0000000000000000 R11: 0000000000000246 R12: ffff880035b34000
  [268334.169083] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.169084] PM: Basic memory bitmaps created
  [268334.116017] R13: ffffffffffffffed R14: 0000000000000030 R15: ffffffffa003e240
  [268334.172700] PM: Basic memory bitmaps freed
  [268334.116017] FS: 00007f76464d0700(0000) GS:ffff88003fd00000(0000) knlGS:0000000000000000
  [268334.175436] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.175438] PM: Basic memory bitmaps created
  [268334.178656] PM: Basic memory bitmaps freed
  [268334.116017] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [268334.116017] CR2: 0000000001127001 CR3: 00000000299ee000 CR4: 0000000000000670
  [268334.181083] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.181085] PM: Basic memory bitmaps created
  [268334.184511] PM: Basic memory bitmaps freed
  [268334.116017] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  [268334.116017] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  [268334.187102] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.187104] PM: Basic memory bitmaps created
  [268334.190367] PM: Basic memory bitmaps freed
  [268334.116017] Stack:
  [268334.192995] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.192997] PM: Basic memory bitmaps created
  [268334.116017] ffffffffa001edfe 0000000000000001 ffffffffa0049cc1 0000000000000086
  [268334.196234] PM: Basic memory bitmaps freed
  [268334.116017] ffff88000615bf24 0000000000000000 ffffffffa00267e0 000000040615be08
  [268334.198807] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.198809] PM: Basic memory bitmaps created
  [268334.116017] 0000643000000004 00007ffd2986673c ffff88000615be20 ffff88000615bed8
  [268334.116017] Call Trace:
  [268334.202104] PM: Basic memory bitmaps freed
  [268334.116017] [<ffffffffa001edfe>] ? drm_ioctl+0x49e/0x600 [drm]
  [268334.208007] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.219513] PM: Basic memory bitmaps created
  [268334.116017] [<ffffffffa00267e0>] ? drm_agp_info_ioctl+0x10/0x10 [drm]
  [268334.222966] PM: Basic memory bitmaps freed
  [268334.116017] [<ffffffff81781e7c>] ? system_call_after_swapgs+0x156/0x170
  [268334.225437] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.225439] PM: Basic memory bitmaps created
  [268334.116017] [<ffffffff81781e75>] ? system_call_after_swapgs+0x14f/0x170
  [268334.228654] PM: Basic memory bitmaps freed
  [268334.116017] [<ffffffff81781e6e>] ? system_call_after_swapgs+0x148/0x170
  [268334.116017] [<ffffffff81781e60>] ? system_call_after_swapgs+0x13a/0x170
  [268334.231478] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.231480] PM: Basic memory bitmaps created
  [268334.116017] [<ffffffff811e7755>] do_vfs_ioctl+0x75/0x2c0
  [268334.234724] PM: Basic memory bitmaps freed
  [268334.116017] [<ffffffff81781e28>] ? system_call_after_swapgs+0x102/0x170
  [268334.237158] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.237160] PM: Basic memory bitmaps created
  [268334.116017] [<ffffffff81781e21>] ? system_call_after_swapgs+0xfb/0x170
  [268334.240574] PM: Basic memory bitmaps freed
  [268334.116017] [<ffffffff81781e1a>] ? system_call_after_swapgs+0xf4/0x170
  [268334.116017] [<ffffffff81781e13>] ? system_call_after_swapgs+0xed/0x170
  [268334.243339] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.243341] PM: Basic memory bitmaps created
  [268334.116017] [<ffffffff811e7a31>] SyS_ioctl+0x91/0xb0
  [268334.246574] PM: Basic memory bitmaps freed
  [268334.116017] [<ffffffff81781df0>] ? system_call_after_swapgs+0xca/0x170
  [268334.249094] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.249095] PM: Basic memory bitmaps created
  [268334.116017] [<ffffffff81781de9>] ? system_call_after_swapgs+0xc3/0x170
  [268334.252344] PM: Basic memory bitmaps freed
  [268334.116017] [<ffffffff81781de2>] ? system_call_after_swapgs+0xbc/0x170
  [268334.116017] [<ffffffff81781dd4>] ? system_call_after_swapgs+0xae/0x170
  [268334.255301] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.255303] PM: Basic memory bitmaps created
  [268334.116017] [<ffffffff81781ebc>] system_call_fastpath+0x26/0x2b
  [268334.258517] PM: Basic memory bitmaps freed
  [268334.261078] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.261080] PM: Basic memory bitmaps created
  [268334.264334] PM: Basic memory bitmaps freed
  [268334.267147] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.267148] PM: Basic memory bitmaps created
  [268334.116017] Code: 90 90 90 90 90 90 90 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 <f3> aa 4c 89 c8 c3 0f 1f 84 00 00 00 00 00 0f 1f 84 00 00 00 00
  [268334.116017] RIP [<ffffffff81395014>] memset+0x24/0xb0
  [268334.270310] PM: Basic memory bitmaps freed
  [268334.116017] RSP <ffff88000615bdc0>
  [268334.116017] CR2: 0000000000000000
  [268334.272833] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.272834] PM: Basic memory bitmaps created
  [268334.276319] PM: Basic memory bitmaps freed
  [268334.285817] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.286915] PM: Basic memory bitmaps created
  [268334.293777] PM: Basic memory bitmaps freed
  [268334.304778] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.305618] PM: Basic memory bitmaps created
  [268334.309607] PM: Basic memory bitmaps freed
  [268334.382763] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.383578] PM: Basic memory bitmaps created
  [268334.387775] PM: Basic memory bitmaps freed
  [268334.390798] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.391599] PM: Basic memory bitmaps created
  [268334.395467] PM: Basic memory bitmaps freed
  [268334.401512] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.402292] PM: Basic memory bitmaps created
  [268334.406022] PM: Basic memory bitmaps freed
  [268334.406958] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
  [268334.407730] PM: Basic memory bitmaps created
  [268334.411785] PM: Basic memory bitmaps freed
  [268334.720676] ---[ end trace d016604229e5b273 ]---
  [268335.089641] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268335.195292] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268335.433769] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268335.434976] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268335.435014] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268335.435100] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268335.435177] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268335.435215] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268335.435300] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268335.435342] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268337.012437] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268337.015618] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268337.019028] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268337.021815] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268337.024451] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO
  [268337.262183] program stress-ng-dev is using a deprecated SCSI ioctl, please convert it to SG_IO