On Fri, Apr 10, 2015 at 08:06:41AM +0000, He, Shuang wrote: > > -----Original Message----- > > From: Daniel Vetter [mailto:daniel.vetter@xxxxxxxx] On Behalf Of Daniel > > Vetter > > Sent: Friday, April 10, 2015 3:39 PM > > To: He, Shuang > > Cc: Gao, Ethan; intel-gfx@xxxxxxxxxxxxxxxxxxxxx; R, Durgadoss > > Subject: Re: [PATCH] drm/i915: Add debugfs to read any DPCD > > register > > > > On Thu, Apr 09, 2015 at 02:54:13PM -0700, shuang.he@xxxxxxxxx wrote: > > > Tested-By: Intel Graphics QA PRTS (Patch Regression Test System Contact: > > shuang.he@xxxxxxxxx) > > > Task id: 6145 > > > -------------------------------------Summary------------------------------------- > > > Platform Delta drm-intel-nightly Series Applied > > > PNV 276/276 276/276 > > > ILK 302/302 302/302 > > > SNB -21 313/313 292/313 > > > IVB 337/337 337/337 > > > BYT 286/286 286/286 > > > HSW 395/395 395/395 > > > BDW 321/321 321/321 > > > -------------------------------------Detailed------------------------------------- > > > Platform Test drm-intel-nightly Series Applied > > > SNB igt@kms_mmio_vs_cs_flip@setplane_vs_cs_flip > > DMESG_WARN(4)PASS(3) DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@kms_rotation_crc@primary-rotation DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@cursor DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@cursor-dpms DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@debugfs-forcewake-user DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@dpms-mode-unset-non-lpsp > > DMESG_WARN(4)PASS(3) DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@dpms-non-lpsp DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@drm-resources-equal DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@fences DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@fences-dpms DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@gem-execbuf DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@gem-idle DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@gem-mmap-cpu DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@gem-mmap-gtt DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@gem-pread DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@i2c DMESG_WARN(4)PASS(3) DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@modeset-non-lpsp DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@modeset-non-lpsp-stress-no-wait > > DMESG_WARN(4)PASS(3) DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@pci-d3-state DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@reg-read-ioctl DMESG_WARN(4)PASS(3) > > DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > SNB igt@pm_rpm@rte DMESG_WARN(4)PASS(3) DMESG_WARN(1) > > > (dmesg patch > > applied)drm:intel_dp_start_link_train[i915]]*ERROR*too_many_voltage_ret > > ries,give_up@too many voltage .* give up > > > > > drm:intel_dp_complete_link_train[i915]]*ERROR*failed_to_train_DP,aborti > > ng@failed to train .* aborting > > > Note: You need to pay more attention to line start with '*' > > > > Something seems wrong with your test infrastructure, I've seen a bunch of > > result (from completely unrelated patches) that DP link training is > > failing all over the place on snb (and sometimes ilk). > [He, Shuang] Yes, it seems to happen on same test machine. Is it possible to related to some kernel issue? I see those dmesg warnings happens for almost same set of tests in two rounds of testing on that test machine: igt@pm_rpm* > http://lists.freedesktop.org/archives/intel-gfx/2015-April/064274.html > http://lists.freedesktop.org/archives/intel-gfx/2015-April/064289.html > while other testing didn't use same hardware seems doesn't have this issue: > http://lists.freedesktop.org/archives/intel-gfx/2015-April/064166.html > Is it possible it's hardware specific issue? Well imo the problem here is that PRTS reports something as a regression which seems to affect all kernels. That's just noise. Of course the bug itself is still real (and probably a regression), but I haven't seen a PRTS bisect result for it yet either. Is that stuck somewhere in the queue? -Daniel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
