Hello,

I have rebuild custom kernel by just enabling Intel Trusted Exceution
Technology option under Security configuration option. After that i am
trying to boot the system using kernel tboot, SINIT for trusted boot using
this newly build kernel. It boots properly and shows TBOOT messages during
boot but it does not shows proper desktop/display. It shows some square
boxes/lines on my display. Cursor is square box which i was able to move it.


Original kernel - 2.6.33.1-24.fc13.i686
Custom kernel - 2.6.33.4-95.SK.fc13.i686

I built custom kernel using rpmbuild -bp --target=i686 kernel.spec (build
all kernel flavors). Link - http://fedoraproject.org/wiki/Docs/CustomKernel

Please note that i am facing this problem when i boot with tboot. If i boot
using custom kernel which i built without tboot it works fine.
Display/desktop is proper. So i am not able to figure out where exactly the
problem is? Also, i am able to boot properly with tboot and my original
kernel (2.6.33.1-24) and desktop is also coming up properly.

Can you please provide any help to resolve this issue? I had installed
tpm-tools, trousers trousers-devel, tboot.gz, modified grub.conf
accordingly.

I started the system with my original kernel and was getting below error
messages in Automatic Bug Reporting Tool.


WARNING: at mm/highmem.c:444 debug_kmap_atomic+0xad/0x12a()
Hardware name: Sierra
Modules linked in: tpm_infineon ipv6 uinput snd_hda_codec_analog
snd_hda_intel snd_hda_codec e1000e snd_hwdep i2c_i801 snd_seq iTCO_wdt
iTCO_vendor_support snd_seq_device snd_pcm snd_timer snd soundcore serio_raw
snd_page_alloc microcode dm_multipath pata_acpi ata_generic i915
drm_kms_helper drm i2c_algo_bit i2c_core video output [last unloaded:
scsi_wait_scan]
Pid: 0, comm: swapper Tainted: G        W  2.6.33.4-95.SK.fc13.i686 #1
Call Trace:
[<c0c36e2d>] warn_slowpath_common+0x65/0x7c
[<c0caa681>] ? debug_kmap_atomic+0xad/0x12a
[<c0c36e51>] warn_slowpath_null+0xd/0x10
[<c0caa681>] debug_kmap_atomic+0xad/0x12a
[<c0c240a4>] kmap_atomic_prot+0x51/0xd2
[<f7ff5f4d>] ? i915_error_object_create+0x5d/0xfa [i915]
[<c0c24133>] kmap_atomic+0xe/0x10
[<f7ff5f8f>] i915_error_object_create+0x9f/0xfa [i915]
[<f7ff631a>] i915_handle_error+0x330/0x813 [i915]
[<f7ff69a3>] i915_driver_irq_handler+0xc7/0x2f4 [i915]
[<c0c504a3>] ? sched_clock_local+0x17/0x11e
[<c0c78fb4>] handle_IRQ_event+0x52/0xf8
[<c0c7a74a>] handle_edge_irq+0xc7/0x10b
[<c0c04cd3>] handle_irq+0x3b/0x48
[<c0c04558>] do_IRQ+0x41/0x9a
[<c0c03830>] common_interrupt+0x30/0x38
[<c0c5007b>] ? update_target+0x4/0xc0
[<c0df52c9>] ? acpi_idle_enter_bm+0x251/0x282
[<c0ec78b6>] cpuidle_idle_call+0x6d/0xbf
[<c0c024b8>] cpu_idle+0x91/0xad
[<c0f5e59e>] rest_init+0x62/0x64
[<c11b78f1>] start_kernel+0x346/0x34b
[<c11b7099>] i386_start_kernel+0x99/0xa0




-- 
Thanks & Regards,
Satish Kagathara.
Team Lead,
Diebold Software Services Pvt. Ltd.
Mumbai, India.

E-Mail: satishkagath...@gmail.com
Phone: +91-22-66497573(O) / +91-98693 95421(Mobile)
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