[Bug 92181] [SKL] igt/kms_plan/plane-position-covered-pipe-b-plane-2 fail and cause system crash
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Wed Oct 21 03:37:07 PDT 2015
https://bugs.freedesktop.org/show_bug.cgi?id=92181
--- Comment #3 from Maarten Lankhorst <bugs at mblankhorst.nl> ---
I'm seeing the below WARN when testing with displayport connected, previously I
would probably get the same hard hang as well.
[ 68.099084] ------------[ cut here ]------------
[ 68.099101] WARNING: CPU: 0 PID: 1261 at
drivers/gpu/drm/i915/intel_uncore.c:619 hsw_unclaimed_reg_debug+0x66/0x80
[i915]()
[ 68.099102] Unclaimed register detected after writing to register 0x71240
[ 68.099122] CPU: 0 PID: 1261 Comm: kms_plane Tainted: G U W
4.3.0-rc3-patser+ #4398
[ 68.099124] Hardware name: Intel Corporation Skylake Client platform/Skylake
DT DDR4 RVP8, BIOS SKLSE2R1.R00.B084.B02.1505180148 05/18/2015
[ 68.099125] ffffffffc01a8600 ffff880089dbb9c0 ffffffff812d3cfc
ffff880089dbba08
[ 68.099127] ffff880089dbb9f8 ffffffff8107e2ad ffff880455b60000
0000000000071240
[ 68.099130] 0000000000071240 ffff880455b60080 0000000000000246
ffff880089dbba58
[ 68.099132] Call Trace:
[ 68.099136] [<ffffffff812d3cfc>] dump_stack+0x4e/0x82
[ 68.099139] [<ffffffff8107e2ad>] warn_slowpath_common+0x7d/0xb0
[ 68.099141] [<ffffffff8107e327>] warn_slowpath_fmt+0x47/0x50
[ 68.099144] [<ffffffff810a417d>] ? get_parent_ip+0xd/0x50
[ 68.099159] [<ffffffffc0124eb6>] hsw_unclaimed_reg_debug+0x66/0x80 [i915]
[ 68.099172] [<ffffffffc0129107>] gen9_write32+0x2a7/0x320 [i915]
[ 68.099181] [<ffffffffc00e6803>] skl_update_wm+0x2e3/0x710 [i915]
[ 68.099190] [<ffffffffc00e7bc9>] intel_update_watermarks+0x19/0x20 [i915]
[ 68.099205] [<ffffffffc014841e>] intel_atomic_commit+0x48e/0x13d0 [i915]
[ 68.099208] [<ffffffff813f3f2f>] ? drm_atomic_check_only+0x13f/0x5b0
[ 68.099211] [<ffffffff813f3a88>] ?
drm_atomic_add_affected_connectors+0x88/0xf0
[ 68.099214] [<ffffffff813f43d2>] drm_atomic_commit+0x32/0x50
[ 68.099216] [<ffffffff813d2132>] drm_atomic_helper_set_config+0x72/0xb0
[ 68.099219] [<ffffffff813e440d>] drm_mode_set_config_internal+0x5d/0xf0
[ 68.099220] [<ffffffff813e84f3>] drm_mode_setcrtc+0x183/0x4c0
[ 68.099223] [<ffffffff813da43b>] drm_ioctl+0x12b/0x550
[ 68.099225] [<ffffffff813e8370>] ? drm_mode_setplane+0x1a0/0x1a0
[ 68.099228] [<ffffffff81285ea7>] ? ioctl_has_perm+0xa7/0xc0
[ 68.099230] [<ffffffff811a89fc>] do_vfs_ioctl+0x2fc/0x550
[ 68.099232] [<ffffffff81285f0b>] ? selinux_file_ioctl+0x4b/0xd0
[ 68.099235] [<ffffffff8127b4ae>] ? security_file_ioctl+0x3e/0x60
[ 68.099236] [<ffffffff811a8cc4>] SyS_ioctl+0x74/0x80
[ 68.099239] [<ffffffff817126d7>] entry_SYSCALL_64_fastpath+0x12/0x6a
[ 68.099240] ---[ end trace a22947acc427d3eb ]---
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