Bug 1262194

Description of problem:
I opened google chrome, then wen to see the apple ipad-pro page on apple.com.  and it appears to be webgl. 
Actually the problem is with the most 3d content in webpages

Additional info:
reporter:       libreport-2.6.2
general protection fault: 0000 [#1] SMP 
Modules linked in: rfcomm fuse xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun ccm nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ebtable_broute bridge ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw bnep it87 hwmon_vid arc4 rtl8192ce rtl_pci rtl8192c_common vfat fat rtlwifi kvm_amd mac80211 eeepc_wmi asus_wmi sparse_keymap kvm crct10dif_pclmul snd_hda_codec_realtek crc32_pclmul snd_hda_codec_generic snd_hda_codec_hdmi crc32c_intel cfg80211 snd_hda_intel btusb snd_hda_controller btbcm ghash_clmulni_intel
 snd_hda_codec btintel bluetooth snd_hda_core snd_hwdep snd_seq snd_seq_device rfkill snd_pcm edac_core fam15h_power edac_mce_amd k10temp shpchp i2c_piix4 snd_timer tpm_infineon tpm_tis snd tpm video soundcore wmi acpi_cpufreq nfsd auth_rpcgss nfs_acl lockd grace sunrpc binfmt_misc amdkfd amd_iommu_v2 radeon i2c_algo_bit 8021q drm_kms_helper garp stp llc mrp ttm r8169 drm mii serio_raw
CPU: 2 PID: 6009 Comm: kworker/2:0 Not tainted 4.1.6-200.fc22.x86_64 #1
Hardware name: System manufacturer System Product Name/A68HM-PLUS, BIOS 0803 04/09/2015
Workqueue: events ttm_bo_delayed_workqueue [ttm]
task: ffff8800b043eca0 ti: ffff880152240000 task.ti: ffff880152240000
RIP: 0010:[<ffffffffa00a1568>]  [<ffffffffa00a1568>] ttm_dma_unpopulate+0x258/0x370 [ttm]
RSP: 0018:ffff880152243c78  EFLAGS: 00010283
RAX: ff020303ff030203 RBX: ffff880212837000 RCX: ffff88015dd5c7e0
RDX: ffffc9000249e000 RSI: 0000000000000392 RDI: ff030302ff030302
RBP: ffff880152243cb8 R08: ffff88004827b8c0 R09: 0000000000000246
R10: ffffffffa009bb1e R11: 0000000000100000 R12: ffff88015dd5c780
R13: ffff880212837000 R14: 0000000000000393 R15: 0000000000000000
FS:  00007f0ca11c9700(0000) GS:ffff88021ed00000(0000) knlGS:00000000f771f7c0
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f12a402200c CR3: 0000000080b1f000 CR4: 00000000000406e0
Stack:
 ffff880152243ca8 ffff88015dd5c7e0 ffff88015dd5c780 ffff88015dd5c780
 ffff88004827b8c0 ffff88015dd5c780 ffff88003e524738 0000000000000000
 ffff880152243ce8 ffffffffa011db37 ffff88015dd5c780 ffff88004827b8c0
Call Trace:
 [<ffffffffa011db37>] radeon_ttm_tt_unpopulate+0x147/0x150 [radeon]
 [<ffffffffa0098274>] ttm_tt_unpopulate+0x54/0x60 [ttm]
 [<ffffffffa00982e5>] ttm_tt_destroy+0x65/0x70 [ttm]
 [<ffffffffa0098763>] ttm_bo_cleanup_memtype_use+0x43/0x90 [ttm]
 [<ffffffffa00997a3>] ttm_bo_cleanup_refs_and_unlock+0x93/0x190 [ttm]
 [<ffffffffa009996c>] ttm_bo_delayed_delete+0xcc/0x240 [ttm]
 [<ffffffffa0099aff>] ttm_bo_delayed_workqueue+0x1f/0x50 [ttm]
 [<ffffffff810baadb>] process_one_work+0x1bb/0x410
 [<ffffffff810bad83>] worker_thread+0x53/0x480
 [<ffffffff810bad30>] ? process_one_work+0x410/0x410
 [<ffffffff810bad30>] ? process_one_work+0x410/0x410
 [<ffffffff810c0bf8>] kthread+0xd8/0xf0
 [<ffffffff810c0b20>] ? kthread_worker_fn+0x180/0x180
 [<ffffffff817a2322>] ret_from_fork+0x42/0x70
 [<ffffffff810c0b20>] ? kthread_worker_fn+0x180/0x180
Code: 70 fe ff ff 0f 1f 80 00 00 00 00 49 8b 44 24 60 49 8d 4c 24 60 48 89 4d c8 48 39 c1 0f 84 33 fe ff ff 45 31 f6 66 0f 1f 44 00 00 <48> 8b 78 18 49 8b 54 24 18 44 89 f6 41 83 c6 01 48 89 3c f2 48 
RIP  [<ffffffffa00a1568>] ttm_dma_unpopulate+0x258/0x370 [ttm]
 RSP <ffff880152243c78>

Potential duplicate: bug 1218427