[Bug 86679] New: [ILK i386 regression]X start fail

Mon Nov 24 18:20:31 PST 2014

https://bugs.freedesktop.org/show_bug.cgi?id=86679

            Bug ID: 86679
           Summary: [ILK i386 regression]X start fail
           Product: DRI
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: high
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: huax.lu at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 109972
  --> https://bugs.freedesktop.org/attachment.cgi?id=109972&action=edit
dmesg

==System Environment==
--------------------------
Regression: yes
good commit:bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9
bad commit: cb4975b7c365f6d8e6d17cf4a24d846b3d27e6b7

Non-working platforms: ILK i386

Bug detailed description:
-----------------------------
clean boot system, run xinit, X crash. It happens on ILK i386 machines with
drm-intel-fixes, drm-intel-next-queued and drm-intel-nightly kernel.
It works well on 64 bit machines.

output:
X.Org X Server 1.16.2
Release Date: 2014-11-10
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.11.10-301.fc20.i686+PAE i686
Current Operating System: Linux x-e6510
3.18.0-rc5_drm-intel-fixes_cb4975_20141124+ #1866 SMP Mon Nov 24 12:26:01 CST
2014 i686
Kernel command line:
BOOT_IMAGE=kernels//nightly_parents/2014_11_24/drm-intel-fixes/cb4975b7c365f6d8e6d17cf4a24d846b3d27e6b7/bzImage_i386
root=/dev/sda3 drm.debug=0xe hostname=x-e6510
modules_path=kernels//nightly_parents/2014_11_24/drm-intel-fixes/cb4975b7c365f6d8e6d17cf4a24d846b3d27e6b7/modules_i386/lib/modules/3.18.0-rc5_drm-intel-fixes_cb4975_20141124+
Build Date: 24 November 2014  02:33:40PM

Current version of pixman: 0.33.1
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/opt/X11R7/var/log/Xorg.0.log", Time: Tue Nov 25 09:23:21 2014
(==) Using config directory: "/etc/X11/xorg.conf.d"
(==) Using system config directory "/opt/X11R7/share/X11/xorg.conf.d"

[root at x-e6510 opt]#
Message from syslogd at x-e6510 at Nov 25 09:23:23 ...
 kernel:[  553.399667] CPU: 3 PID: 3998 Comm: X Not tainted
3.18.0-rc5_drm-intel-fixes_cb4975_20141124+ #1866

Message from syslogd at x-e6510 at Nov 25 09:23:23 ...
 kernel:[  553.399804] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05
08/10/2010

Message from syslogd at x-e6510 at Nov 25 09:23:23 ...
 kernel:[  553.399917] task: c2165f00 ti: f2012000 task.ti: f2012000

Message from syslogd at x-e6510 at Nov 25 09:23:23 ...
 kernel:[  553.400581] Stack:

Message from syslogd at x-e6510 at Nov 25 09:23:23 ...
 kernel:[  553.401080] Call Trace:

Message from syslogd at x-e6510 at Nov 25 09:23:23 ...
 kernel:[  553.403818] Code: 5f 8b 54 24 18 89 42 0c 31 c0 8b 52 04 80 3b 00 74
1e 80 7b 15 00 74 18 0f b6 4b 14 89 d0 31 d2 0f af 4b 0c c1 e0 06 8d 44 01 ff
<f7> f1 83 c0 02 8b 54 24 18 89 42 10 c6 02 01 59 5b 5e 5f 5d c3

Message from syslogd at x-e6510 at Nov 25 09:23:23 ...
 kernel:[  553.408580] EIP: [<f8561c12>] ilk_compute_wm_level+0x11e/0x133
[i915] SS:ESP 0068:f2013abc

Call trace:
[  553.400002] EIP: 0060:[<f8561c12>] EFLAGS: 00013202 CPU: 3
[  553.400117] EIP is at ilk_compute_wm_level+0x11e/0x133 [i915]
[  553.400206] EAX: 0000017f EBX: f2013b30 ECX: 00000000 EDX: 00000000
[  553.400303] ESI: 00000004 EDI: 0000000d EBP: 00000007 ESP: f2013abc
[  553.400400]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[  553.400485] CR0: 80050033 CR2: b69bc000 CR3: 02828000 CR4: 000007d0
[  553.400581] Stack:
[  553.400615]  000d000d f62a4000 c2998000 f63d7800 c2998000 f856470e f2013b98
00000000
[  553.400770]  000011a3 000001ac 00100200 f63d7800 00000002 c2998000 00000000
00000000
[  553.400925]  00000000 00000000 00000000 00000000 00000001 66660000 00000f8f
00000f8f
[  553.401080] Call Trace:
[  553.401148]  [<f856470e>] ? ilk_update_wm+0x24d/0xa07 [i915]
[  553.401244]  [<c12dd7e0>] ? number.isra.2+0x155/0x249
[  553.401354]  [<f8565177>] ? intel_update_watermarks+0x11/0x12 [i915]
[  553.401492]  [<f85a19c6>] ? ironlake_crtc_enable+0x343/0x9cc [i915]
[  553.401625]  [<f857a92d>] ? i915_gem_object_pin_to_display_plane+0x8a/0x140
[i915]
[  553.401781]  [<f859edc2>] ? __intel_set_mode+0xf7c/0x1070 [i915]
[  553.401879]  [<c10536bf>] ? up+0x9/0x2a
[  553.401944]  [<c105d08b>] ? console_unlock+0x34b/0x37f
[  553.402028]  [<c10a4f0f>] ? irq_work_queue+0x8/0x5b
[  553.402143]  [<f85a450f>] ? intel_set_mode+0x11/0x25 [i915]
[  553.402267]  [<f85a4fbe>] ? intel_crtc_set_config+0x674/0x957 [i915]
[  553.402369]  [<c16fb04c>] ? printk+0x16/0x1a
[  553.402459]  [<f805236d>] ? drm_mode_set_config_internal+0x39/0x97 [drm]
[  553.402580]  [<f8055621>] ? drm_mode_setcrtc+0x373/0x405 [drm]
[  553.402689]  [<f80552ae>] ? drm_mode_setplane+0x188/0x188 [drm]
[  553.402793]  [<f804bc8c>] ? drm_ioctl+0x233/0x35c [drm]
[  553.402894]  [<f80552ae>] ? drm_mode_setplane+0x188/0x188 [drm]
[  553.402992]  [<c104e21a>] ? pick_next_task_fair+0xd1/0x3ee
[  553.403091]  [<f804ba59>] ? drm_copy_field+0x47/0x47 [drm]
[  553.403181]  [<c10ee855>] ? do_vfs_ioctl+0x3fa/0x444
[  553.403262]  [<c1700072>] ? __schedule+0x56a/0x6d5
[  553.403340]  [<c10e3214>] ? __sb_end_write+0x1e/0x4c
[  553.403419]  [<c10e2291>] ? vfs_write+0x14f/0x165
[  553.403495]  [<c10ee8e1>] ? SyS_ioctl+0x42/0x6d
[  553.403572]  [<c1088b2c>] ? __audit_syscall_entry+0x9f/0xbd
[  553.403661]  [<c17025e8>] ? sysenter_do_call+0x12/0x12
[  553.403744]  [<c1700000>] ? __schedule+0x4f8/0x6d5
[  553.403818] Code: 5f 8b 54 24 18 89 42 0c 31 c0 8b 52 04 80 3b 00 74 1e 80
7b 15 00 74 18 0f b6 4b 14 89 d0 31 d2 0f af 4b 0c c1 e0 06 8d 44 01 ff <f7> f1
83 c0 02 8b 54 24 18 89 42 10 c6 02 01 59 5b 5e 5f 5d c3
[  553.408580] EIP: [<f8561c12>] ilk_compute_wm_level+0x11e/0x133 [i915] SS:ESP
0068:f2013abc


Reproduce steps:
----------------------------
1. clean boot system 
2. xinit

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