Bug 5650

Summary: EMGD will cause calltrace on BayTrail BSP
Product: [Build System, Metadata & Runtime] BSPs Reporter: Fupan.Li <fupan.li>
Component: bsps-meta-intelAssignee: Nuhairi Anuar <nuhairi.anuar>
Status: RESOLVED WONTFIX QA Contact:
Severity: normal    
Priority: Undecided CC: boon.leong.ong, chen.yong.seow, rebecca.swee.fun.chang, song.liu, tom.zanussi, weiwei.wang
Version: 1.4   
Target Milestone: ---   
Hardware: Other   
OS: x86   
Whiteboard:
OS type for building Yocto: --- Type of Regression: ---
Verified: Documentation change: No (bug/feature does not impact docs)
Attachments:
Description Flags
the dmesg log
none
a fix patch to this bug fupan.li: commit+, fupan.li: review+

Description Fupan.Li 2013-12-10 02:11:57 UTC 
EMGD will cause calltrace on BayTrail BSP.

Steps reproduce:

1. sudo dd if=~/disk2/poky/meta-intel/meta-baytrail/binary/core-image-sato-baytrail64.hddimg  of=/dev/sdc

2. boot it on Bakersport/BayleyBay

3. on the terminal:
   $dmesg | grep "Call Trace"


[    0.800328] ------------[ cut here ]------------
[    0.800346] WARNING: at /home/ilab/build/baytrail/tmp/work/baytrail64-poky-linux/linux-yocto/3.8.0+gitAUTOINC+cad4929004676d4ca62eac39e22a02aef7db686c_19f949f52599ba7c3f67a5897ac6be14bfcb1200-r5.1/linux/mm/page_alloc.c:2376 __alloc_pages_nodemask+0x3c2/0xa10()
[    0.800368] Hardware name: VALLEYVIEW B0 PLATFORM
[    0.800375] Modules linked in:
[    0.800385] Pid: 1, comm: swapper/0 Not tainted 3.8.0-yocto-standard #1
[    0.800393] Call Trace:
[    0.800407]  [<ffffffff81035e4f>] warn_slowpath_common+0x7f/0xc0
[    0.800419]  [<ffffffff81035eaa>] warn_slowpath_null+0x1a/0x20
[    0.800429]  [<ffffffff810eff12>] __alloc_pages_nodemask+0x3c2/0xa10
[    0.800441]  [<ffffffff810efd00>] ? __alloc_pages_nodemask+0x1b0/0xa10
[    0.800454]  [<ffffffff8178dbab>] ? _raw_spin_lock+0x1b/0x40
[    0.800465]  [<ffffffff8178d966>] ? _raw_spin_unlock+0x16/0x40
[    0.800476]  [<ffffffff8178d966>] ? _raw_spin_unlock+0x16/0x40
[    0.800489]  [<ffffffff81776b35>] ? klist_put+0x75/0xb0
[    0.800499]  [<ffffffff810f0577>] __get_free_pages+0x17/0x50
[    0.800510]  [<ffffffff81125769>] kmalloc_order_trace+0x39/0xf0
[    0.800524]  [<ffffffff814b8667>] reg_alloc_vlv+0x57/0xf0
[    0.800535]  [<ffffffff814b7519>] _reg_init+0xe9/0x120
[    0.800545]  [<ffffffff81492ec7>] igd_module_init+0x47/0xb0
[    0.800558]  [<ffffffff8143b59f>] emgd_startup_hal+0x1f/0x30
[    0.800568]  [<ffffffff8143bd2a>] emgd_driver_load+0x33a/0x950
[    0.800580]  [<ffffffff8141ddc6>] drm_get_pci_dev+0x186/0x2c0
[    0.800592]  [<ffffffff8143a450>] emgd_pci_probe+0x20/0x30
[    0.800604]  [<ffffffff81379bec>] pci_device_probe+0x9c/0xe0
[    0.800615]  [<ffffffff814bfabb>] driver_probe_device+0x7b/0x240
[    0.800627]  [<ffffffff814bfd2b>] __driver_attach+0xab/0xb0
[    0.800638]  [<ffffffff814bfc80>] ? driver_probe_device+0x240/0x240
[    0.800649]  [<ffffffff814bdd75>] bus_for_each_dev+0x55/0x90
[    0.800660]  [<ffffffff814bf5fe>] driver_attach+0x1e/0x20
[    0.800670]  [<ffffffff814bf190>] bus_add_driver+0x190/0x260
[    0.800682]  [<ffffffff81cfcd67>] ? drm_core_init+0x136/0x136
[    0.800693]  [<ffffffff814c03f7>] driver_register+0x77/0x170
[    0.800704]  [<ffffffff81cfcc31>] ? agp_intel_init+0x2c/0x2c
[    0.800714]  [<ffffffff81cfcd67>] ? drm_core_init+0x136/0x136
[    0.800725]  [<ffffffff81379d1b>] __pci_register_driver+0x4b/0x50
[    0.800736]  [<ffffffff8141e015>] drm_pci_init+0x115/0x130
[    0.800747]  [<ffffffff81cfcd67>] ? drm_core_init+0x136/0x136
[    0.800757]  [<ffffffff81cfcd8f>] emgd_init+0x28/0x2a
[    0.800769]  [<ffffffff810002f2>] do_one_initcall+0x122/0x170
[    0.800781]  [<ffffffff81cd6cb6>] kernel_init_freeable+0x139/0x1c3
[    0.800792]  [<ffffffff81cd65b0>] ? do_early_param+0x8d/0x8d
[    0.800802]  [<ffffffff81777290>] ? rest_init+0x80/0x80
[    0.800812]  [<ffffffff8177729e>] kernel_init+0xe/0xf0
[    0.800823]  [<ffffffff817953dc>] ret_from_fork+0x7c/0xb0
[    0.800833]  [<ffffffff81777290>] ? rest_init+0x80/0x80
[    0.800852] ---[ end trace e7227173c35c6757 ]---
[    0.972745] edid_parse_cea ERROR: Unknown Tag Code! : 7
[    0.972757] edid_parse_cea ERROR: Unknown Tag Code! : 0
[    0.972766] edid_parse_cea ERROR: Unknown Tag Code! : 0
[    0.972794] hdmi_open ERROR: Unsupported port number for internal HDMI
[    0.972805] hdmi_open ERROR: Unsupported port number for internal HDMI
[    0.972816] hdmi_open ERROR: Unsupported port number for internal HDMI
[    0.972826] hdmi_open ERROR: Unsupported port number for internal HDMI
[    0.973644] i2c_aux_read_regs_vlv ERROR: AUX channel failed to write start.
Comment 1 Fupan.Li 2013-12-10 02:13:22 UTC 
Created attachment 1660 [details]
the dmesg log

add the dmesg log
Comment 2 Chen Yong 2013-12-12 12:30:16 UTC 
We can reproduce the issue and assign it to Nuhairi to investigate.
Comment 3 Fupan.Li 2013-12-24 07:31:16 UTC 
Any updates on this bug?
Comment 4 Fupan.Li 2013-12-25 02:32:26 UTC 
Created attachment 1688 [details]
a fix patch to this bug

Hi,

I attached a fix patch to this bug, please review it.
Comment 5 Fupan.Li 2014-01-14 07:25:16 UTC 
Hi,

I found the golden release still has the same problem.
Any progress on this bug?

Fupan
Comment 6 Nuhairi Anuar 2014-07-11 07:37:59 UTC 
EMGD does not have any future release for Yocto Bay Trail (E3800). Please contact your Intel representative (PAE) if you need the bug fix. Another option is to use newer version of Yocto BSP that come with different (open source) graphic driver.