[vbox-dev] vbox kernel modules cause hardlock on kernel 4.2.0-rc2

[Jon Christopherson]

Hello,

The virtualbox 5.0 kernel modules cause a hard lock on kernel 4.2.0-rc2:

Jul 13 21:10:58 enigma kernel: [80372.524749] ------------[ cut here 
]------------
Jul 13 21:10:58 enigma kernel: [80372.524750] WARNING: CPU: 3 PID: 28733 
at /data/Source/mainline/kernel/sched/core.c:2342 
preempt_notifier_register+0x30/0x70()
Jul 13 21:10:58 enigma kernel: [80372.524751] registering 
preempt_notifier while notifiers disabled
Jul 13 21:10:58 enigma kernel: [80372.524751] Modules linked in: 
pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) vhost_net 
vhost macvtap macvlan xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 
nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 
xt_tcpudp bridge stp llc ebtable_filter ebtables ip6table_filter 
ip6_tables iptable_filter ip_tables x_tables ib_iser rdma_cm iw_cm ib_cm 
ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi 
scsi_transport_iscsi rfcomm bnep binfmt_misc nfsd auth_rpcgss nfs_acl 
nfs lockd grace sunrpc fscache snd_hda_codec_realtek 
snd_hda_codec_generic snd_hda_codec_hdmi nls_iso8859_1 b43 mac80211 
cfg80211 ssb eeepc_wmi asus_wmi mxm_wmi sparse_keymap dm_multipath 
scsi_dh intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp 
kvm_intel kvm serio_raw joydev btusb btrtl hid_logitech_hidpp btbcm 
btintel bluetooth snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep 
lpc_ich snd_pcm snd_seq_midi snd_seq_midi_event nvidia(POE) snd_rawmidi 
snd_seq parport_pc snd_seq_device drm snd_timer bcma snd mei_me ppdev 
mei shpchp soundcore msr nct6775 hwmon_vid coretemp lp 8250_fintek 
parport mac_hid wmi btrfs xor raid6_pq drbg ansi_cprng dm_crypt 
dm_mirror dm_region_hash dm_log hid_logitech_dj hid_generic usbhid hid 
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 
lrw gf128mul glue_helper ablk_helper cryptd ahci psmouse e1000e libahci 
ptp pps_core video
Jul 13 21:10:58 enigma kernel: [80372.524783] CPU: 3 PID: 28733 Comm: 
EMT-0 Tainted: P        W  OE   4.2.0-24-generic #201507121930
Jul 13 21:10:58 enigma kernel: [80372.524783] Hardware name: System 
manufacturer System Product Name/P8P67 DELUXE, BIOS 3602 10/31/2012
Jul 13 21:10:58 enigma kernel: [80372.524784]  ffffffff81aba330 
ffff8801394bbcb8 ffffffff8179f36b 0000000000000000
Jul 13 21:10:58 enigma kernel: [80372.524785]  ffff8801394bbd08 
ffff8801394bbcf8 ffffffff810745ea ffff8801394bbcc0
Jul 13 21:10:58 enigma kernel: [80372.524786]  ffff8802f3d95b20 
ffffc900027c3000 0000000000000003 ffff8803d4774b00
Jul 13 21:10:58 enigma kernel: [80372.524787] Call Trace:
Jul 13 21:10:58 enigma kernel: [80372.524788]  [<ffffffff8179f36b>] 
dump_stack+0x45/0x57
Jul 13 21:10:58 enigma kernel: [80372.524790]  [<ffffffff810745ea>] 
warn_slowpath_common+0x8a/0xc0
Jul 13 21:10:58 enigma kernel: [80372.524791]  [<ffffffff81074666>] 
warn_slowpath_fmt+0x46/0x50
Jul 13 21:10:58 enigma kernel: [80372.524792]  [<ffffffff81096a20>] 
preempt_notifier_register+0x30/0x70
Jul 13 21:10:58 enigma kernel: [80372.524796]  [<ffffffffc128415c>] 
VBoxHost_RTThreadCtxHookEnable+0x2c/0x40 [vboxdrv]
Jul 13 21:10:58 enigma kernel: [80372.524800]  [<ffffffffc1271641>] ? 
supdrvIOCtlFast+0x71/0x90 [vboxdrv]
Jul 13 21:10:58 enigma kernel: [80372.524803]  [<ffffffffc126e48c>] ? 
VBoxDrvLinuxIOCtl_5_0_0+0x4c/0x230 [vboxdrv]
Jul 13 21:10:58 enigma kernel: [80372.524804]  [<ffffffff811f49fd>] ? 
do_vfs_ioctl+0x2cd/0x4b0
Jul 13 21:10:58 enigma kernel: [80372.524805]  [<ffffffff811fe117>] ? 
__fget_light+0x17/0x60
Jul 13 21:10:58 enigma kernel: [80372.524806]  [<ffffffff811f4c59>] ? 
SyS_ioctl+0x79/0x90
Jul 13 21:10:58 enigma kernel: [80372.524808]  [<ffffffff817a66b2>] ? 
entry_SYSCALL_64_fastpath+0x16/0x75
Jul 13 21:10:58 enigma kernel: [80372.524809] ---[ end trace 
ada7039339335596 ]---

Regards,

Jon