[Xperia Z Android Development] GuiPoM:
I am still struggling with my reboot issue, if you have any idea what is going wrong here (existenz 7.0):

[ 516.718566] SysRq : Trigger a crash
[ 516.718627] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[ 516.718627] pgd = ddeb8000
[ 516.718658] [00000000] *pgd=9e247831, *pte=00000000, *ppte=00000000
[ 516.718719] Internal error: Oops: 817 [#1] PREEMPT SMP ARM
[ 516.718719] Modules linked in: texfat(PO) cfg80211 [last unloaded: wlan]
[ 516.718780] CPU: 0 Tainted: P W O (3.4.0-ge09aff8 #1)
[ 516.718811] PC is at sysrq_handle_crash+0x14/0x20
[ 516.718841] LR is at __handle_sysrq+0xa4/0x154
[ 516.718872] pc : [<c03ef254>] lr : [<c03ef758>] psr: 60000093
[ 516.718872] sp : e5fd3f20 ip : 00000000 fp : 0002a15d
[ 516.718902] r10: 00000001 r9 : bee6ec88 r8 : 00000000
[ 516.718933] r7 : 00000063 r6 : 60000013 r5 : 00000007 r4 : c0eda6f8
[ 516.718933] r3 : 00000001 r2 : 00000000 r1 : c0b32dce r0 : 00000063
[ 516.718963] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user
[ 516.718994] Control: 10c5787d Table: 9e2b806a DAC: 00000015
[ 516.719024] Process init (pid: 1, stack limit = 0xe5fd22f0)
[ 516.719024] Stack: (0xe5fd3f20 to 0xe5fd4000)
[ 516.719055] 3f20: 00000001 de0e3e4c c03ef808 dc3d9c00 e5fd3f88 c03ef840 de0e3e00 c0280e00
[ 516.719085] 3f40: dc3d9c00 bee6ec88 e5fd3f88 bee6ec88 00000001 e5fd2000 00000000 c023bcc0
[ 516.719116] 3f60: dc3d9c00 bee6ec88 00000000 00000000 dc3d9c00 bee6ec88 00000001 c023bfb0
[ 516.719177] 3f80: 0000000e 00000001 00000000 00000000 0000000e bee6ec88 00046aad 00000004
[ 516.719207] 3fa0: c0106304 c0106180 0000000e bee6ec88 0000000e bee6ec88 00000001 bee6ec8c
[ 516.719238] 3fc0: 0000000e bee6ec88 00046aad 00000004 0002b273 0002adc5 0004b4c4 0002a15d
[ 516.719268] 3fe0: 00000001 bee6ec70 000081db 00019178 40000010 0000000e feffacbe bdf8f7fc
[ 516.719299] [<c03ef254>] (sysrq_handle_crash+0x14/0x20) from [<c03ef758>] (__handle_sysrq+0xa4/0x154)
[ 516.719360] [<c03ef758>] (__handle_sysrq+0xa4/0x154) from [<c03ef840>] (write_sysrq_trigger+0x38/0x48)
[ 516.719390] [<c03ef840>] (write_sysrq_trigger+0x38/0x48) from [<c0280e00>] (proc_reg_write+0x80/0x98)
[ 516.719451] [<c0280e00>] (proc_reg_write+0x80/0x98) from [<c023bcc0>] (vfs_write+0xa8/0x180)
[ 516.719512] [<c023bcc0>] (vfs_write+0xa8/0x180) from [<c023bfb0>] (sys_write+0x34/0x68)
[ 516.719573] [<c023bfb0>] (sys_write+0x34/0x68) from [<c0106180>] (ret_fast_syscall+0x0/0x30)
[ 516.719604] Code: e3a03001 e5823000 f57ff04f e3a02000 (e5c23000)
[ 516.719635] ---[ end trace da227214a82491b9 ]---
[ 516.719665] Kernel panic - not syncing: Fatal exception
[ 516.719696] CPU1: stopping
[ 516.719757] [<c010c104>] (unwind_backtrace+0x0/0x11c) from [<c010b1c4>] (handle_IPI+0x100/0x1fc)
[ 516.719818] [<c010b1c4>] (handle_IPI+0x100/0x1fc) from [<c0100574>] (gic_handle_irq+0x100/0x10c)
[ 516.719848] [<c0100574>] (gic_handle_irq+0x100/0x10c) from [<c0891680>] (__irq_svc+0x40/0x70)
[ 516.719879] Exception stack(0xd7ac9d78 to 0xd7ac9dc0)
[ 516.719909] 9d60: da6539c0 00000009
[ 516.719940] 9d80: d7ac9e00 271ae91c da6539c0 00000000 da3fc0c0 da653dd4 da6539c0 da6539b8
[ 516.719970] 9da0: da653bf8 da653bf8 00000000 d7ac9dc0 c017e8e8 c02852ac 60000013 ffffffff
[ 516.720031] [<c0891680>] (__irq_svc+0x40/0x70) from [<c02852ac>] (proc_flush_task+0x18/0x184)
[ 516.720092] [<c02852ac>] (proc_flush_task+0x18/0x184) from [<c017e8e8>] (release_task+0x3c/0x440)
[ 516.720153] [<c017e8e8>] (release_task+0x3c/0x440) from [<c01804bc>] (do_exit+0x6dc/0x864)
[ 516.720184] [<c01804bc>] (do_exit+0x6dc/0x864) from [<c01808f0>] (do_group_exit+0x84/0xc0)
[ 516.720245] [<c01808f0>] (do_group_exit+0x84/0xc0) from [<c018d9ec>] (get_signal_to_deliver+0x4d0/0x544)
[ 516.720306] [<c018d9ec>] (get_signal_to_deliver+0x4d0/0x544) from [<c0108a6c>] (do_signal+0xcc/0x4ec)
[ 516.720367] [<c0108a6c>] (do_signal+0xcc/0x4ec) from [<c0109304>] (do_notify_resume+0x18/0x50)
[ 516.720397] [<c0109304>] (do_notify_resume+0x18/0x50) from [<c01061d8>] (work_pending+0x24/0x28)
[ 516.720428] CPU2: stopping
[ 516.720458] &@running_process@cpu1:*pool-5-thread-1*
[ 516.720489] [<c010c104>] (unwind_backtrace+0x0/0x11c) from [<c010b1c4>] (handle_IPI+0x100/0x1fc)
[ 516.720550] [<c010b1c4>] (handle_IPI+0x100/0x1fc) from [<c0100574>] (gic_handle_irq+0x100/0x10c)
[ 516.720581] [<c0100574>] (gic_handle_irq+0x100/0x10c) from [<c0891680>] (__irq_svc+0x40/0x70)
[ 516.720611] Exception stack(0xdb229cc8 to 0xdb229d10)
[ 516.720642] 9cc0: db229ce0 00000000 c2d8b790 d4040068 c2d8b680 00000382
[ 516.720672] 9ce0: dca771f8 0000000e 00000007 00000001 72cb0000 c2d7a0e0 00000000 db229d10
[ 516.720703] 9d00: c020c0d8 c022f9b8 40000013 ffffffff
[ 516.720764] [<c0891680>] (__irq_svc+0x40/0x70) from [<c022f9b8>] (free_pages_and_swap_cache+0x34/0x98)
[ 516.720825] [<c022f9b8>] (free_pages_and_swap_cache+0x34/0x98) from [<c0221690>] (unmap_single_vma+0x55c/0x624)
[ 516.720855] [<c0221690>] (unmap_single_vma+0x55c/0x624) from [<c0222084>] (unmap_vmas+0x38/0x54)
[ 516.720916] [<c0222084>] (unmap_vmas+0x38/0x54) from [<c0226218>] (exit_mmap+0xd0/0x1d0)
[ 516.720977] [<c0226218>] (exit_mmap+0xd0/0x1d0) from [<c0179e10>] (mmput+0x3c/0x108)
[ 516.721038] [<c0179e10>] (mmput+0x3c/0x108) from [<c017e55c>] (exit_mm+0x110/0x128)
[ 516.721099] [<c017e55c>] (exit_mm+0x110/0x128) from [<c018003c>] (do_exit+0x25c/0x864)
[ 516.721160] [<c018003c>] (do_exit+0x25c/0x864) from [<c01808f0>] (do_group_exit+0x84/0xc0)
[ 516.721221] [<c01808f0>] (do_group_exit+0x84/0xc0) from [<c018d9ec>] (get_signal_to_deliver+0x4d0/0x544)
[ 516.721282] [<c018d9ec>] (get_signal_to_deliver+0x4d0/0x544) from [<c0108a6c>] (do_signal+0xcc/0x4ec)
[ 516.721343] [<c0108a6c>] (do_signal+0xcc/0x4ec) from [<c0109304>] (do_notify_resume+0x18/0x50)
[ 516.721405] [<c0109304>] (do_notify_resume+0x18/0x50) from [<c01061d8>] (work_pending+0x24/0x28)
[ 516.721435] &@running_process@cpu2:*m.android.phone*
[ 516.722503] msm_pm_wait_cpu_shutdown(): Timed out waiting for CPU 1 SPM to enter sleep state
[ 516.723571] msm_pm_wait_cpu_shutdown(): Timed out waiting for CPU 2 SPM to enter sleep state
[ 516.723632] wcnss_8960: crash shutdown : 0
[ 517.325500] &@panic_name@:*init*
[ 517.326568] Rebooting in 5 seconds..
[ 522.336822] msm_pm_wait_cpu_shutdown(): Timed out waiting for CPU 1 SPM to enter sleep state
[ 522.337860] msm_pm_wait_cpu_shutdown(): Timed out waiting for CPU 2 SPM to enter sleep state
[ 522.337890] Restarting Linux version 3.4.0-ge09aff8 (BuildUser@BuildHost) (gcc version 4.7 (GCC) ) #1 SMP PREEMPT Wed Jan 15 17:28:36 2014

and this must have something to do with this post: http://xdaforums.com/showthread.php?p=47951649

Could it be a Sony rom issue ? Strange that nobody here reports that issue, I would like to understand what on my phone defers from yours.