Backtrace

WARNING: CPU: 7 PID: 6252 at kernel/dma/debug.c:1182 debug_dma_map_sg+0x219/0x380
Modules linked in: rfcomm snd_seq_dummy snd_hrtimer nf_conntrack_netlink xt_addrtype br_netfilter xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp overlay bridge stp llc nf_conntrack_sane nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_tables ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bnep sunrpc vfat fat squashfs loop snd_hda_codec_hdmi snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_hda_codec_realtek snd_soc_core snd_hda_codec_generic ledtrig_audio snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel
 snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_hda_core rtw88_8821ce rtw88_8821c snd_hwdep intel_tcc_cooling rtw88_pci x86_pkg_temp_thermal snd_seq intel_powerclamp coretemp iTCO_wdt ee1004 intel_pmc_bxt rtw88_core kvm_intel snd_seq_device intel_rapl_msr iTCO_vendor_support mei_hdcp kvm snd_pcm mac80211 uvcvideo btusb btrtl irqbypass videobuf2_vmalloc btbcm rapl btintel intel_cstate videobuf2_memops snd_timer intel_uncore hp_wmi platform_profile i2c_i801 pcspkr cfg80211 intel_wmi_thunderbolt wmi_bmof bluetooth snd videobuf2_v4l2 i2c_smbus videobuf2_common soundcore processor_thermal_device_pci_legacy libarc4 processor_thermal_device videodev processor_thermal_rfim processor_thermal_mbox joydev processor_thermal_rapl ecdh_generic mc mei_me intel_rapl_common rfkill int340x_thermal_zone mei intel_xhci_usb_role_switch intel_soc_dts_iosf intel_pch_thermal intel_vbtn kxcjk_1013 sparse_keymap industrialio_triggered_buffer cm32181 kfifo_buf industrialio acpi_pad
 wireless_hotkey int3400_thermal acpi_thermal_rel acpi_tad binfmt_misc ip_tables i915 nouveau crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel drm_ttm_helper mxm_wmi i2c_algo_bit ttm drm_kms_helper nvme serio_raw nvme_core cec r8169 drm wmi video fuse
CPU: 7 PID: 6252 Comm: skypeforlinux Not tainted 5.14.16-201.fc34.x86_64+debug #1
Hardware name: HP HP Laptop 15-da0xxx/84A7, BIOS F.19 05/06/2019
RIP: 0010:debug_dma_map_sg+0x219/0x380
Code: 24 08 e8 da 49 77 00 48 8b 4c 24 08 4c 8b 44 24 10 48 8b 54 24 18 4c 8b 4c 24 20 48 89 c6 48 c7 c7 60 85 5f a9 e8 6f 74 ba 00 <0f> 0b 8b 05 1f 01 0e 02 85 c0 75 13 8b 05 a1 25 ea 01 85 c0 74 09
RSP: 0018:ffffbb7284cefbe0 EFLAGS: 00010282
RAX: 0000000000000090 RBX: ffff9bed831210c8 RCX: 0000000000000027
RDX: ffff9bf0eeddaf68 RSI: 0000000000000001 RDI: ffff9bf0eeddaf60
RBP: ffff9bed891d4c40 R08: 0000000000000001 R09: 0000000000000001
R10: ffffbb7284cefa18 R11: ffffffffa9f67068 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000002 R15: ffff9bed81635680
FS:  00007f8ab0da7d00(0000) GS:ffff9bf0eec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8a721dd000 CR3: 00000001bf800005 CR4: 00000000003706e0
Call Trace:
 dma_map_sg_attrs+0x6a/0xa0
 i915_gem_gtt_prepare_pages+0x4e/0x60 [i915]
 shmem_get_pages+0x248/0x610 [i915]
 ? __ww_mutex_lock.constprop.0+0x409/0xe60
 ? lock_is_held_type+0xa7/0x120
 ? i915_gem_set_domain_ioctl+0xc1/0x2b0 [i915]
 ? lock_is_held_type+0xa7/0x120
 __i915_gem_object_get_pages+0xb1/0xc0 [i915]
 i915_gem_set_domain_ioctl+0x1ff/0x2b0 [i915]
 ? i915_gem_object_set_to_cpu_domain+0xf0/0xf0 [i915]
 drm_ioctl_kernel+0x89/0xe0 [drm]
 drm_ioctl+0x220/0x3e0 [drm]
 ? i915_gem_object_set_to_cpu_domain+0xf0/0xf0 [i915]
 ? set_task_cpu+0x28f/0x2b0
 ? security_file_ioctl+0x32/0x50
 __x64_sys_ioctl+0x82/0xb0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8ab26580ab
Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 9d bd 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffc2141c4c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000055c887853e00 RCX: 00007f8ab26580ab
RDX: 00007ffc2141c514 RSI: 00000000400c645f RDI: 0000000000000018
RBP: 00007ffc2141c5a0 R08: 000055c888114ff0 R09: 000055c88764d010
R10: 00007f8ab2724a00 R11: 0000000000000246 R12: 000055c888114ff0
R13: 00007ffc2141c514 R14: 000055c887853e18 R15: 0000000000000018
irq event stamp: 740659
hardirqs last  enabled at (740665): [<ffffffffa8175074>] console_unlock+0x4c4/0x5e0
hardirqs last disabled at (740670): [<ffffffffa8174fbf>] console_unlock+0x40f/0x5e0
softirqs last  enabled at (740558): [<ffffffffa80ef75c>] __irq_exit_rcu+0xec/0x110
softirqs last disabled at (740371): [<ffffffffa80ef75c>] __irq_exit_rcu+0xec/0x110