lkml.org 
[lkml]   [2015]   [Oct]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [Intel-gfx] [regression] [git pull] drm for 4.3
    On Mon, Oct 19, 2015 at 04:19:08PM -0400, davej@codemonkey.org.uk wrote:
    > On Wed, Sep 30, 2015 at 08:56:26AM +0200, Daniel Vetter wrote:
    >
    > > > The warning on boot seems to be gone as of rc3, but I can now trigger this pretty easily..
    > >
    > > http://patchwork.freedesktop.org/patch/60618/
    >
    > Back from several weeks of travel.. I tried again with rc6, and
    > I'm still seeing the same traces.

    Oh crap, applied patch to wrong tree. We need to cherry-pick

    commit 621bd0f6982badd6483acb191eb7b6226a578328
    Author: Daniel Vetter <daniel.vetter@ffwll.ch>
    Date: Tue Sep 29 09:56:53 2015 +0200

    drm: Fix locking for sysfs dpms file

    to drm-fixes. Sorry about that screw-up. Dave, can you pls do that one? It
    even comes with the needed cc: stable included (since the locking breakage
    was done in 4.0, it only surface due to a new warning in 4.3).
    -Daniel

    >
    > Dave
    >
    >
    > > > WARNING: CPU: 2 PID: 28911 at drivers/gpu/drm/drm_atomic.c:889 drm_atomic_get_property+0x244/0x2d0()
    > > > CPU: 2 PID: 28911 Comm: trinity-c313 Not tainted 4.3.0-rc3-think+ #14
    > > > 0000000000000379 ffff8801a1377c88 ffffffff8e35d5ec 0000000000000000
    > > > ffff8801a1377cc0 ffffffff8e07a862 ffff880500b392b8 ffff880500a13008
    > > > ffff880500b39290 ffff8804fe3806d8 ffff88003fa45668 ffff8801a1377cd0
    > > > Call Trace:
    > > > [<ffffffff8e35d5ec>] dump_stack+0x4e/0x82
    > > > [<ffffffff8e07a862>] warn_slowpath_common+0x82/0xc0
    > > > [<ffffffff8e07a95a>] warn_slowpath_null+0x1a/0x20
    > > > [<ffffffff8e48efc4>] drm_atomic_get_property+0x244/0x2d0
    > > > [<ffffffff8e47c7fc>] drm_object_property_get_value+0x6c/0x70
    > > > [<ffffffff8e47a41f>] dpms_show+0x2f/0x70
    > > > [<ffffffff8e54ce30>] dev_attr_show+0x20/0x50
    > > > [<ffffffff8e27ae91>] ? sysfs_file_ops+0x41/0x60
    > > > [<ffffffff8e27b1a7>] sysfs_kf_seq_show+0xb7/0x110
    > > > [<ffffffff8e2799a6>] kernfs_seq_show+0x26/0x30
    > > > [<ffffffff8e21bba6>] seq_read+0xe6/0x430
    > > > [<ffffffff8e27a3f7>] kernfs_fop_read+0x127/0x170
    > > > [<ffffffff8e7e987b>] ? mutex_lock_nested+0x26b/0x3f0
    > > > [<ffffffff8e1f3af8>] __vfs_read+0x28/0xe0
    > > > [<ffffffff8e7e9897>] ? mutex_lock_nested+0x287/0x3f0
    > > > [<ffffffff8e214c09>] ? __fdget_pos+0x49/0x50
    > > > [<ffffffff8e214c09>] ? __fdget_pos+0x49/0x50
    > > > [<ffffffff8e1f43c6>] vfs_read+0x86/0x130
    > > > [<ffffffff8e1f50a9>] SyS_read+0x49/0xb0
    > > > [<ffffffff8e7eded7>] entry_SYSCALL_64_fastpath+0x12/0x6f
    > > > ---[ end trace e053063c697a1355 ]---
    > > >
    > > > 887 case DRM_MODE_OBJECT_CONNECTOR: {
    > > > 888 struct drm_connector *connector = obj_to_connector(obj);
    > > > 889 WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex));
    > > > 890 ret = drm_atomic_connector_get_property(connector,
    > > > 891 connector->state, property, val);
    > > > 892 break;
    > > > 893 }
    > > >
    > > > _______________________________________________
    > > > dri-devel mailing list
    > > > dri-devel@lists.freedesktop.org
    > > > http://lists.freedesktop.org/mailman/listinfo/dri-devel
    > >
    > > --
    > > Daniel Vetter
    > > Software Engineer, Intel Corporation
    > > http://blog.ffwll.ch
    > ---end quoted text---
    > _______________________________________________
    > Intel-gfx mailing list
    > Intel-gfx@lists.freedesktop.org
    > http://lists.freedesktop.org/mailman/listinfo/intel-gfx

    --
    Daniel Vetter
    Software Engineer, Intel Corporation
    http://blog.ffwll.ch


    \
     
     \ /
      Last update: 2015-10-20 00:01    [W:3.918 / U:0.120 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site