Referring to issue #815173 which has been marked as fixed. I am experiencing exact same issue as reported by the OP on Feb 16.
Current kernels installed 4.3.0.1 (no problems) and 4.4.0.1 - the boot dies very early on, no logs in syslog / dmesg. However, it generated a bunch of *efivars dump files* which I include here in the event there is anything useful. The dump files are concatenated into one.
Oops#1 Part10 <6>[ 5.928561] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11 <6>[ 5.928604] iTCO_wdt: Found a Panther Point TCO device (Version=2, TCOBASE=0x0460) <6>[ 5.928888] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0) <6>[ 5.936342] cfg80211: World regulatory domain updated: <6>[ 5.936346] cfg80211: DFS Master region: unset <6>[ 5.936347] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time) <6>[ 5.936350] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A) <6>[ 5.936352] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A) <6>[ 5.936353] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A) <6>[ 5.936356] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A) <6>[ 5.936358] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s) H‰•”ooÚ:ÆßïSioZ©ç?ɶ+e»lÐfS;!4lJnƒ�k;týö;!m!i·i¼@Žåçwžsìs*²ÕkªŒM^½uÉ?sÀŸoÙ¶ë‘hú^¾es{ÃT–Âpÿ–7%7\Ãû,ç�îÏX-¹ïþB~ΗåÍï”�Û{Y™\¦ãk˜r18|.yÉ[œà€ñHà. /b`*Ûq¹¤!ËÒ€�Àø.[akd³†Ðw Æ/ <C©¹êè‚®8TÑ<ç9R™hCØsC#J‰1·’•h¬ŽÙÌ/ ÒÌ/5X´6ÁÓð‰+�A¦{€nÖÆ#nd¿¬ý(K%h)WUbǵ‚(ªd£ë™×Yk8ÑŒú§1(ÞÙÖ•µà²0:®”Tú�âûýŽ’¯ÞzL¯†‡è�ÿêˆlî8!ùÂWKÂûɵ#a�—z Yٖà ÖJn!Ÿƒ}d2´{^„uÉDQš&ƒô.3« P ݇ÛêN.®ÓoélR¯_Ój�\$dHΫåPÿûMþ¾îýa2nàç“ñù¢y0tì'#iÎyƒÒ)þÂʨe%hGð4ÌÓI2h»‰ny‡/ùÏn’«/ƒ‹–…°�}²Ð ÎQû¾aÁq}ç©rý!ô- æýáN¤èä™à§MET5Ÿ)¶ßM¦��˜ø1Ø–³d 'µéÞùAÎðÁìªuØk2z¶‡‰_ 'sjª>ßâÃT÷� ½³-·¡ˆz!ú4›LÜ”}§«"‹aV}&ØX•ý0 ë¶#–ã·µî3íƘ"îv³å¶SmXzm nºm¡ÿë ƒñe œÑ¬ï\]Á‰cœžÁh¥¸òN´YÁ3Ö„¹“äµãbÑpÀà”Àe0œ]CpljžA¾ ]Õàª& Ên6FàÅg…¹ÆéÖ 8�û܆¢,“ ë¦ÙOÍ7õžª8pA—9gMNè;/•F’ÙàehC£êᆖtu›W�}®¤0Jægp”Å=’yÙeŒËÇ‘üù> Oops#1 Part11 <6>[ 5.873321] input: HDA Intel PCH Dock Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11 <6>[ 5.873394] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12 <6>[ 5.873461] input: HDA Intel PCH Dock Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input13 <6>[ 5.873526] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input15 <6>[ 5.873589] input: HDA Intel PCH HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input16 <6>[ 5.873655] input: HDA Intel PCH HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input17 <6>[ 5.876664] [drm] GMBUS [i915 gmbus dpb] timed out, falling back to bit banging on pin 5 <4>[ 5.880325] FAT-fs (sda2): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. <7>[ 5.884534] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs' <6>[ 5.928128] iTCO_vendor_support: vendor-support=0 Oops#1 Part1 <4>[ 6.807713] [<ffffffff814fd5f9>] ? udp_send_skb+0x99/0x250 <4>[ 6.807715] [<ffffffff814fe451>] ? udp_sendmsg+0x2c1/0x9b0 <4>[ 6.807717] [<ffffffff8119580f>] ? do_set_pte+0xcf/0x100 <4>[ 6.807720] [<ffffffff81167fa9>] ? filemap_map_pages+0x229/0x240 <4>[ 6.807722] [<ffffffff8147a0d0>] ? sock_sendmsg+0x30/0x40 <4>[ 6.807723] [<ffffffff8147a633>] ? SYSC_sendto+0xd3/0x150 <4>[ 6.807725] [<ffffffff81062647>] ? __do_page_fault+0x1b7/0x430 <4>[ 6.807727] [<ffffffff8158ec32>] ? system_call_fast_compare_end+0xc/0x67 <4>[ 6.807737] Code: e8 ae 08 67 e0 85 c0 78 28 74 2f 48 8b 5b 08 48 85 db 75 d9 f6 85 90 00 00 00 04 74 39 4d 85 f6 74 34 4c 89 f0 44 84 68 18 74 18 <48> 8b 5b 10 eb b7 49 89 de 48 8b 5b 10 eb ae 48 89 d8 44 84 68 <1>[ 6.807739] RIP [<ffffffffa0c82348>] nft_rbtree_lookup+0x88/0xf0 [nft_rbtree] <4>[ 6.807739] RSP <ffff88021e2039f8> <4>[ 6.807740] CR2: 0000000000000010 <4>[ 6.807741] ---[ end trace aa3f7aa29f214ebb ]--- H‰UÉnÛ0½ç+è%9Ô%kqQ²ts7B È�–&6aŠt¹$õßwäÔAMÙ T'IļyóÞÓh•¨^Å0áÆ1vð6‰ÞÝ]é *²Q\Ü�]Y‡M}ËîÞÀ òjŽ58nfèà Ý£6®• Û y4 N rG VŠ á«E\ÕP¢µB+(Û×�b¸ RRûäB›Gnjân-ñ¨‰ÞO�ÖYp¾s)áL¬œ6+ztÕ<Df1ÛFºWBÍ€È|ÒÞ(.¡ÔÕ]§6éצ|äËNMšöô+WVêÙ¾vÙ°·Ý³”ï�öK¸â ÂXë…_ÚT¨gÏÔpx\ãÃ1ñ: aâlÔçm¹>Ùá(‹†QÆv8Úk^Ãg4 %\êÚK´ƒAXžAçKíÕºüƒŸ!Åa†.„Ü�è"dìóZÖ6¬ÊCË·'~:yMõn5°;æNã<ÞCü §~ÖË9Mzó¶I(á*'áT7KîÄTHáVë,ÐG"–>ɨ?Tçª2«e;á7-}ÓQ$¦Q'Oœ6fîH5‹²(í Âs Ñ<´J†rdŒå½Üo°Ñÿ–ÔÂáÄàQhøÏ@!D^${|�\—À%7 %|ñè±×å¼¥{y HRô=Úu´Ý(|Ž¬®€´nC¨tMá¿×Ü¡òÆ r°X›ÐéV°$˜½¤�i}pïtÓÎ 'f*œá´AÏaåŸÊ?Ðöm¸ÛúÐàä¹n¢… í.òtôR\NµrFï΋“Ыͯà?ˆsð«}7P H‰m•MoÛ8†ïùì±H–¤(~†{º@ÐCƒäTÁÏ@ˆ,i%¹ëý÷ÊiœPdA29Ï̼3#=Ø®ñ1x°ãL¯6|û xˆE¤Ðrð¼Io‡¢\V…í¾Â0ö>N“qÖ¿¶ýËrÔáor¤)!j©u¤‹³�Æú¹é;D0*�QÕCZ0ˆt�ñ…aLèÍÔ§¹ÿE%Ì®¼@ÔšhîÄ`úÿ:3͘SFùÌ T#hóíÇý.QJU.nTú†jtPU耯ˆ•`œ’ôG°&eɺ&Ë•Ð^ì×Uã4�ñ—iû~ÈU3Ç}3çºeÍ㊢KJŽ¸…Ò fïM˜‡CPë²äºDPr!A.$¢È¥DhYudê?!L±fzu9‚ú’�´*íS¨“^ìá@ëœÁªïhYQž"¯é'Â~ÊÍÏ<E‚v+BY ªkõVÌÜ8 Ãàs-))íY©!2ÙS©iãÞb-ð7Ø—8å8Ø’ÉJÆÊL¤%áT‹©Çf8§R‘Kb²•˜ÒŠêÔÜO?ŸîÀÜ£}È]MWZ²Õt&¸<ÏpNÁ${h—žr2G±š>VêY«è+vÊãÿiŽ{ãmÛ"gš�ï÷8lÑ`dYa Yð*äÝõ!ÞBT`#BB$ jð¤¦@r` ¸å vyO¾¯!8�xÕ�D~ÔÈûɳU¥�‡¼„ò#îAá~œƒâ Ð…�× WÛ7”@tà$p�·‡xv~Z²§pI�IWú)5œàÇû‡�rYâ«ÐϺ„¯^7�1æÂëaÈc¨P"Œíù¼¸+õʯ…ǧX˜JF##•Nj[ìäعw�ìÕøxв¢§üúúú°J0�ÖG°¶JÒZ¦£<:;Üpµ!ïfçñßãØņü ƒkèú{ óM÷rÿØÙ¶�>ùãM>ç8Ž‡a.Qêõ#%É[Íd]ÃÕo:�ïw H‰µ•]oê8†ïû+FÚ*6!q> Qu´º«l¡ «žSqáÆÓb‘d;þýN€Cù�v÷f�'vž÷µÇ3ɘ2ý…Á˜+ã²›»àÛ+PómÏs¢ÈŸƒàÄû^µàsèÃÓ ˜ô& ©—7wáæ±9\Ëœ¯V¨b¨p�…‰a�J˲ ×vlïó<ï “ej²¸ž÷mÇÚ=Aƒ9n`¹ŽÅ:· i$ϤFƒÈ-â1ûM¡Xpc§e~báA�…âR„1h�lãÒÌ�[ šõ`xßÒ'HÀ¼(`×ȦT{„±+$r¯vtq�Ð .‘0 @×ÈÁ¥Ýv:—H›µ#¯}Žø_.,ôý+$ "ß½F.‘ï\-l‡|í¥Ò²ø ž}”JšEþSâß<¿BnS;øí~•ü-Cq‰úÞš,=Š�´¤LÚ~-æŒ Y;œ×F1ðÊ”972åY¶=¨¼¡6@ œ.u•çõÈ{U¤†Ò2>‘éx”t*Ôøzûó(ò¶ã8»ÕczFDnH»½7ê]CVrq¶£N@¥AÑL³’œËJ¥ÃäSš]-™òtŒ>UŽœ°]Çñáeê[¤Ý :ncÈ˪0¿ËõVÌ�ôP*�T ¸áô’@F+£chU–ÝÞÜyÎ^: �xëP™ïpñêÎãŸ÷ÀXª*Š:D²8 ôÍqwÍL¡9y$O³h&Ã. 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