Hi, I believe this was the changeset that causes the change in caller assumption.
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/kernel/sched/core.c?id=1cde2930e15473cb4dd7e5a07d83e605a969bd6e I need to figure out which exact kernel version was this changeset integrated into. Regards, Ram. On 07/14/2015 04:30 AM, Jon Christopherson wrote: > 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 > > _______________________________________________ > vbox-dev mailing list > [email protected] > https://www.virtualbox.org/mailman/listinfo/vbox-dev _______________________________________________ vbox-dev mailing list [email protected] https://www.virtualbox.org/mailman/listinfo/vbox-dev
