{"id":1226,"date":"2014-11-10T06:32:21","date_gmt":"2014-11-10T06:32:21","guid":{"rendered":"http:\/\/rglinuxtech.com\/?p=1226"},"modified":"2014-11-10T06:33:27","modified_gmt":"2014-11-10T06:33:27","slug":"arm-odroid-u3-with-kernel-3-18-rc4-better-but-still-slow","status":"publish","type":"post","link":"https:\/\/rglinuxtech.com\/?p=1226","title":{"rendered":"ARM &#8211; Odroid U3 with Kernel 3.18-rc4 &#8211; Better, but still Slow&#8230;"},"content":{"rendered":"<p>Just installed the <em>kernel.org<\/em> version of kernel <strong>3.18-rc4<\/strong> on the <strong>Odroid U3<\/strong>, and this time it completed the boot, but still had a &#8216;tombstone&#8217;:<\/p>\n<pre>...............\r\n<strong>cam-power-domain: Power-on latency exceeded, new value 413333 ns<\/strong>\r\n<strong>cam-power-domain: Power-on latency exceeded, new value 564291 ns<\/strong>\r\n<strong>Unable to handle kernel NULL pointer dereference at virtual address 00000010<\/strong>\r\n<strong>pgd = ee328000<\/strong>\r\n<strong>[00000010] *pgd=00000000<\/strong>\r\n<strong>Internal error: Oops: 5 [#1] PREEMPT SMP ARM<\/strong>\r\n<strong>Modules linked in: exynosdrm(+) snd_pcm snd_timer drm_kms_helper snd drm ipv6<\/strong>\r\n<strong>CPU: 3 PID: 2386 Comm: systemd-udevd Not tainted 3.18.0-rc4 #1<\/strong>\r\n<strong>task: edaaa640 ti: ed78a000 task.ti: ed78a000<\/strong>\r\n<strong>PC is at g2d_fini_cmdlist+0x2c\/0x68 [exynosdrm]<\/strong>\r\n<strong>LR is at g2d_fini_cmdlist+0x1c\/0x68 [exynosdrm]<\/strong>\r\n<strong>pc : [&lt;bf2c6bc0&gt;] lr : [&lt;bf2c6bb0&gt;] psr: 800e0053<\/strong>\r\n<strong>sp : ed78bbd8 ip : ed746f94 fp : ed78bbf4<\/strong>\r\n<strong>systemd-journald[1526]: Received request to flush runtime journal from PID 1<\/strong>\r\n<strong>r10: ed78a008 r9 : 00000000 r8 : 00000000<\/strong>\r\n<strong>r7 : bf2d6abc r6 : ee27fc00 r5 : bf2d7e14 r4 : ed746f10<\/strong>\r\n<strong>r3 : 00000000 r2 : 00000000 r1 : 00000000 r0 : 00000000<\/strong>\r\n<strong>Flags: Nzcv IRQs on FIQs off Mode SVC_32 ISA ARM Segment user<\/strong>\r\n<strong>Control: 10c5387d Table: 6e32804a DAC: 00000015<\/strong>\r\n<strong>Process systemd-udevd (pid: 2386, stack limit = 0xed78a240)<\/strong>\r\n<strong>Stack: (0xed78bbd8 to 0xed78c000)<\/strong>\r\n<strong>bbc0: ed746f10 bf2d7e14<\/strong>\r\n.....etc.......<\/pre>\n<pre><strong>Fedora release 21 (Twenty One)<\/strong>\r\n<strong>Kernel 3.18.0-rc4 on an armv7l (ttySAC1)<\/strong>\r\n<strong>...............<\/strong>\r\n<strong>$ <\/strong>uname -a\r\n<strong>Linux rgodroid 3.18.0-rc4 #1 SMP PREEMPT Sun Nov 9 23:50:46 EST 2014 armv7l armv7l armv7l GNU\/Linux<\/strong><\/pre>\n<p>The other annoyance (same as with -rc3) is that the CPU fan is running constantly&#8230;<\/p>\n<p>As this is the mainline kernel version, some of the graphics drivers etc. are still <em>work-in-progress<\/em>..\u00a0\u00a0\u00a0 I have tested with vnc, and that works OK with KDE, but performance is still <span style=\"text-decoration: underline;\">very<\/span> sluggish..<\/p>\n<div id=\"attachment_1227\" style=\"width: 723px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/rglinuxtech.com\/wp_rglinuxtech\/wp-content\/uploads\/2014\/11\/odroid_u3_vnc_kde_screenshot-nov09.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1227\" class=\" wp-image-1227\" src=\"https:\/\/rglinuxtech.com\/wp_rglinuxtech\/wp-content\/uploads\/2014\/11\/odroid_u3_vnc_kde_screenshot-nov09.png\" alt=\"Odroid U3 KDE Screenshot\" width=\"713\" height=\"448\" srcset=\"https:\/\/rglinuxtech.com\/wp_rglinuxtech\/wp-content\/uploads\/2014\/11\/odroid_u3_vnc_kde_screenshot-nov09.png 850w, https:\/\/rglinuxtech.com\/wp_rglinuxtech\/wp-content\/uploads\/2014\/11\/odroid_u3_vnc_kde_screenshot-nov09-300x188.png 300w, https:\/\/rglinuxtech.com\/wp_rglinuxtech\/wp-content\/uploads\/2014\/11\/odroid_u3_vnc_kde_screenshot-nov09-477x300.png 477w\" sizes=\"auto, (max-width: 713px) 100vw, 713px\" \/><\/a><p id=\"caption-attachment-1227\" class=\"wp-caption-text\">Odroid U3 KDE Screenshot<\/p><\/div>\n<p><em>Robert Gadsdon.\u00a0\u00a0 November 9, 2014..<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Just installed the kernel.org version of kernel 3.18-rc4 on the Odroid U3, and this time it completed the boot, but still had a &#8216;tombstone&#8217;: &#8230;&#8230;&#8230;&#8230;&#8230; cam-power-domain: Power-on latency exceeded, new value 413333 ns cam-power-domain: Power-on latency exceeded, new value 564291 ns Unable to handle kernel NULL pointer dereference at virtual address 00000010 pgd = ee328000 [00000010] *pgd=00000000 <span class=\"excerpt-dots\">&hellip;<\/span> <a class=\"more-link\" href=\"https:\/\/rglinuxtech.com\/?p=1226\"><span class=\"more-msg\">Continue reading &rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[5,6,11,13,14,16,794,19,20],"tags":[944,946,940,943,795,945,366],"class_list":["post-1226","post","type-post","status-publish","format-standard","hentry","category-compilation","category-crash-and-burn","category-hacks","category-kde-2","category-kernel","category-linux-arm","category-odroid","category-opinion","category-performance-2","tag-boot-success","tag-cpu-fan-running-constantly","tag-kernel-3-18-rc4","tag-kernel-org-version","tag-odroid-u3","tag-performance-sluggish","tag-tombstone"],"_links":{"self":[{"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/posts\/1226","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1226"}],"version-history":[{"count":2,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/posts\/1226\/revisions"}],"predecessor-version":[{"id":1229,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/posts\/1226\/revisions\/1229"}],"wp:attachment":[{"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1226"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1226"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1226"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}