Bug 1305255 - [abrt] WARNING: CPU: 0 PID: 23372 at include/drm/drm_crtc.h:1577 drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]() [drm_kms_helper]
[abrt] WARNING: CPU: 0 PID: 23372 at include/drm/drm_crtc.h:1577 drm_helper_c...
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-ati (Show other bugs)
x86_64 Unspecified
unspecified Severity unspecified
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Assigned To: X/OpenGL Maintenance List
Fedora Extras Quality Assurance
Depends On:
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Reported: 2016-02-06 08:00 EST by Florian Kisser
Modified: 2016-12-20 13:29 EST (History)
4 users (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2016-12-20 13:29:09 EST
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
File: dmesg (121.24 KB, text/plain)
2016-02-06 08:01 EST, Florian Kisser
no flags Details
Protect call to drm_helper_connector_dpms by mutexes (1.01 KB, patch)
2016-03-20 15:55 EDT, Juha Nikkanen
no flags Details | Diff

  None (edit)
Description Florian Kisser 2016-02-06 08:00:55 EST
Additional info:
reporter:       libreport-2.6.3
WARNING: CPU: 0 PID: 23372 at include/drm/drm_crtc.h:1577 drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
Modules linked in: cfg80211 dm_crypt rfcomm fuse cmac xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_broute bridge stp llc ebtable_filter ebtable_nat ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_security ip6table_mangle ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_security iptable_mangle iptable_raw bnep kvm_amd kvm btusb btrtl crct10dif_pclmul btbcm crc32_pclmul btintel bluetooth eeepc_wmi asus_wmi sparse_keymap rfkill joydev snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel k10temp fam15h_power snd_hda_codec snd_hda_core edac_mce_amd
 snd_hwdep shpchp edac_core snd_seq snd_seq_device i2c_piix4 snd_pcm wmi snd_timer snd video acpi_cpufreq tpm_tis soundcore tpm hid_roccat_ryos hid_roccat_koneplus hid_roccat hid_roccat_common btrfs xor amdkfd amd_iommu_v2 radeon raid6_pq crc32c_intel i2c_algo_bit drm_kms_helper r8169 ttm serio_raw mii drm uas usb_storage fjes nct6775 hwmon_vid
CPU: 0 PID: 23372 Comm: kworker/0:1 Not tainted 4.3.4-300.fc23.x86_64 #1
Hardware name: System manufacturer System Product Name/A88X-PRO, BIOS 2301 11/03/2015
Workqueue: events radeon_dp_work_func [radeon]
 0000000000000000 000000008afbba8f ffff880013c5bd28 ffffffff813a625f
 0000000000000000 ffff880013c5bd60 ffffffff810a07c2 ffff880409134800
 ffff880409221600 ffff8804076af000 0000000000000003 ffff88040881e4b8
Call Trace:
 [<ffffffff813a625f>] dump_stack+0x44/0x55
 [<ffffffff810a07c2>] warn_slowpath_common+0x82/0xc0
 [<ffffffff810a090a>] warn_slowpath_null+0x1a/0x20
 [<ffffffffa00f32ca>] drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]
 [<ffffffffa00f33bb>] drm_helper_connector_dpms+0x4b/0x100 [drm_kms_helper]
 [<ffffffffa0156557>] radeon_connector_hotplug+0xf7/0x100 [radeon]
 [<ffffffffa016496f>] radeon_dp_work_func+0x3f/0x60 [radeon]
 [<ffffffff810b8cde>] process_one_work+0x19e/0x3f0
 [<ffffffff810b8f7e>] worker_thread+0x4e/0x450
 [<ffffffff8177d161>] ? __schedule+0x371/0x980
 [<ffffffff810b8f30>] ? process_one_work+0x3f0/0x3f0
 [<ffffffff810b8f30>] ? process_one_work+0x3f0/0x3f0
 [<ffffffff810bede8>] kthread+0xd8/0xf0
 [<ffffffff810bed10>] ? kthread_worker_fn+0x160/0x160
 [<ffffffff81781b9f>] ret_from_fork+0x3f/0x70
 [<ffffffff810bed10>] ? kthread_worker_fn+0x160/0x160
Comment 1 Florian Kisser 2016-02-06 08:01:04 EST
Created attachment 1121637 [details]
File: dmesg
Comment 2 Juha Nikkanen 2016-03-20 15:55 EDT
Created attachment 1138358 [details]
Protect call to drm_helper_connector_dpms by mutexes
Comment 3 Juha Nikkanen 2016-03-20 16:03:50 EDT
I took kernel 4.5-rc7 + git checkout f414ca6. Made and applied proposed patch. Tested several suspend - resume cycles and so far I were not able to reproduce above mentioned warning. Also messages:
 [drm:radeon_dp_link_train [radeon]] *ERROR* channel eq failed: 5 tries
 [drm:radeon_dp_link_train [radeon]] *ERROR* channel eq failed

seems to be gone. Thanks to Ben Skeggs in inspiring me into this achievement!
Comment 4 Fedora End Of Life 2016-11-24 10:25:23 EST
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Comment 5 Fedora End Of Life 2016-12-20 13:29:09 EST
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