Media (Intel® Video Processing Library, Intel Media SDK)
Access community support with transcoding, decoding, and encoding in applications using media tools like Intel® oneAPI Video Processing Library and Intel® Media SDK
Announcements
The Intel Media SDK project is no longer active. For continued support and access to new features, Intel Media SDK users are encouraged to read the transition guide on upgrading from Intel® Media SDK to Intel® Video Processing Library (VPL), and to move to VPL as soon as possible.
For more information, see the VPL website.

Does anyone know about this error?

Lee_g_
Beginner
195 Views

Hi all, currently i'm having ciritical issue with using quick sync on linux system.

following information is the detail.

Hardware : Intel(R) Xeon(R) CPU E3-1245 v3

OS : CentOS 7 / 3.10.0-123.9.3.29404.MSSr1.el7.x86_64( patched kernel from SDK R3 version )

It works well, but constantly getting warning which is logged at /var/log/message.

-------------

Mar 25 15:00:03 localhost kernel: ------------[ cut here ]------------
Mar 25 15:00:03 localhost kernel: WARNING: at drivers/gpu/drm/i915/intel_display.c:6015 hsw_disable_lcpll+0x514/0x640 [i915]()
Mar 25 15:00:03 localhost kernel: Power well on
Mar 25 15:00:03 localhost kernel: Modules linked in: sg fuse ip6t_rpfilter ip6t_REJECT ipt_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc 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 iptable_filter ip_tables eeepc_wmi asus_wmi sparse_keymap rfkill ppdev iTCO_wdt iTCO_vendor_support mxm_wmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi mei_me mei snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm snd_page_alloc snd_timer snd lpc_ich shpchp i2c_i801 serio_raw mfd_core soundcore pcspkr parport_pc parport coretemp kvm crct10dif_pclmul crc32_pclmul
Mar 25 15:00:03 localhost kernel: crc32c_intel ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd wmi acpi_cpufreq mperf nfsd auth_rpcgss nfs_acl lockd sunrpc xfs libcrc32c sd_mod crc_t10dif crct10dif_common i915 ahci igb firewire_ohci libahci drm_kms_helper libata drm ptp pps_core dca firewire_core i2c_algo_bit crc_itu_t i2c_core video dm_mirror dm_region_hash dm_log dm_mod
Mar 25 15:00:03 localhost kernel: CPU: 2 PID: 71 Comm: kworker/2:1 Not tainted 3.10.0-123.9.3.29404.MSSr1.el7.x86_64 #1
Mar 25 15:00:03 localhost kernel: Hardware name: ASUS All Series/P9D WS, BIOS 2004 06/05/2014
Mar 25 15:00:03 localhost kernel: Workqueue: events hsw_enable_pc8_work [i915]
Mar 25 15:00:03 localhost kernel: ffff880213fbbd60 00000000a6238018 ffff880213fbbd18 ffffffff815e27db
Mar 25 15:00:03 localhost kernel: ffff880213fbbd50 ffffffff8105dee1 ffff880210160000 ffff880210238c48
Mar 25 15:00:03 localhost kernel: 0000000000000001 0000000000000001 ffff880210238c50 ffff880213fbbdb8
Mar 25 15:00:03 localhost kernel: Call Trace:
Mar 25 15:00:03 localhost kernel: [<ffffffff815e27db>] dump_stack+0x19/0x1b
Mar 25 15:00:03 localhost kernel: [<ffffffff8105dee1>] warn_slowpath_common+0x61/0x80
Mar 25 15:00:03 localhost kernel: [<ffffffff8105df5c>] warn_slowpath_fmt+0x5c/0x80
Mar 25 15:00:03 localhost kernel: [<ffffffffa01dc2b4>] hsw_disable_lcpll+0x514/0x640 [i915]
Mar 25 15:00:03 localhost kernel: [<ffffffffa01dc991>] hsw_enable_pc8_work+0x81/0xc0 [i915]
Mar 25 15:00:03 localhost kernel: [<ffffffff8107e03b>] process_one_work+0x17b/0x460
Mar 25 15:00:03 localhost kernel: [<ffffffff8107ee0b>] worker_thread+0x11b/0x400
Mar 25 15:00:03 localhost kernel: [<ffffffff8107ecf0>] ? rescuer_thread+0x400/0x400
Mar 25 15:00:03 localhost kernel: [<ffffffff81085aff>] kthread+0xcf/0xe0
Mar 25 15:00:03 localhost kernel: [<ffffffff81085a30>] ? kthread_create_on_node+0x140/0x140
Mar 25 15:00:03 localhost kernel: [<ffffffff815f2e2c>] ret_from_fork+0x7c/0xb0
Mar 25 15:00:03 localhost kernel: [<ffffffff81085a30>] ? kthread_create_on_node+0x140/0x140
Mar 25 15:00:03 localhost kernel: ---[ end trace 77b1f74514ff84bc ]---

---------------------------------------------------------------

It is just warning, actually, but months ago the system was shut downed because of it.

I made same environment to find what's wrong. but no chance to catch the errors.

 

Does anyone know about this warning? any information could be very helpful. thanks.

0 Kudos
1 Reply
Sravanthi_K_Intel
195 Views

Hello Lee,

Can you provide some more information on what you are trying to run, and what does the output you pasted above correspond to? Few comments:

- Our latest MSS release is R4, so kindly update to that release. It is more stable.

- (After updating and before) Can you send us the output of the following commands - "uname -ar", "lspci -nn | grep VGA", "lsmod | grep i915" 

- Can you run one of our sample applications as root (not sudo, but as root), and send the output you are seeing?

Thanks.

0 Kudos
Reply