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<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>LKML: Gene Heskett: Re: [patch] Real-Time Preemption, -RT-2.6.12-rc1-V0.7.43-00</title><link href="/css/message.css" rel="stylesheet" type="text/css" /><link href="/css/wrap.css" rel="alternate stylesheet" type="text/css" title="wrap" /><link href="/css/nowrap.css" rel="stylesheet" type="text/css" title="nowrap" /><link href="/favicon.ico" rel="shortcut icon" /><script src="/js/simple-calendar.js" type="text/javascript"></script><script src="/js/styleswitcher.js" type="text/javascript"></script><link rel="alternate" type="application/rss+xml" title="lkml.org : last 100 messages" href="/rss.php" /><link rel="alternate" type="application/rss+xml" title="lkml.org : last messages by Gene Heskett" href="/groupie.php?aid=8424" /><script> var _paq = window._paq = window._paq || []; /* tracker methods like "setCustomDimension" should be called before "trackPageView" */ _paq.push(["setDoNotTrack", true]); _paq.push(["disableCookies"]); _paq.push(['trackPageView']); _paq.push(['enableLinkTracking']); (function() { var u="//m.lkml.org/"; _paq.push(['setTrackerUrl', u+'matomo.php']); _paq.push(['setSiteId', '1']); var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0]; g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s); })(); </script></head><body onload="es.jasper.simpleCalendar.init();" itemscope="itemscope" itemtype="http://schema.org/BlogPosting"><table border="0" cellpadding="0" cellspacing="0"><tr><td width="180" align="center"><a href="/"><img style="border:0;width:135px;height:32px" src="/images/toprowlk.gif" alt="lkml.org" /></a></td><td width="32">聽</td><td class="nb"><div><a class="nb" href="/lkml"> [lkml]</a> 聽 <a class="nb" href="/lkml/2005"> [2005]</a> 聽 <a class="nb" href="/lkml/2005/4"> [Apr]</a> 聽 <a class="nb" href="/lkml/2005/4/1"> [1]</a> 聽 <a class="nb" href="/lkml/last100"> [last100]</a> 聽 <a href="/rss.php"><img src="/images/rss-or.gif" border="0" alt="RSS Feed" /></a></div><div>Views: <a href="#" class="nowrap" onclick="setActiveStyleSheet('wrap');return false;">[wrap]</a><a href="#" class="wrap" onclick="setActiveStyleSheet('nowrap');return false;">[no wrap]</a> 聽 <a class="nb" href="/lkml/mheaders/2005/4/1/165" onclick="this.href='/lkml/headers'+'/2005/4/1/165';">[headers]</a>聽 <a href="/lkml/bounce/2005/4/1/165">[forward]</a>聽 </div></td><td width="32">聽</td></tr><tr><td valign="top"><div class="es-jasper-simpleCalendar" baseurl="/lkml/"></div><div class="threadlist">Messages in this thread</div><ul class="threadlist"><li class="root"><a href="/lkml/2005/3/25/100">First message in thread</a></li><li><a href="/lkml/2005/3/31/52">Ingo Molnar</a><ul><li><a href="/lkml/2005/4/1/77">Ingo Molnar</a><ul><li><a href="/lkml/2005/4/1/90">"Rui Nuno Capela"</a><ul><li><a href="/lkml/2005/4/1/100">Ingo Molnar</a><ul><li><a href="/lkml/2005/4/1/118">"Rui Nuno Capela"</a></li></ul></li></ul></li><li class="origin"><a href="/lkml/2005/4/1/183">Gene Heskett</a><ul><li><a href="/lkml/2005/4/1/183">"K.R. Foley"</a><ul><li><a href="/lkml/2005/4/1/180">Ingo Molnar</a></li><li><a href="/lkml/2005/4/1/198">Gene Heskett</a></li><li><a href="/lkml/2005/4/1/199">Gene Heskett</a></li></ul></li></ul></li><li><a href="/lkml/2005/4/5/35">Ingo Molnar</a><ul><li><a href="/lkml/2005/4/5/279">"Rui Nuno Capela"</a><ul><li><a href="/lkml/2005/4/5/294">Steven Rostedt</a></li></ul></li><li><a href="/lkml/2005/4/10/78">"K.R. Foley"</a><ul><li><a href="/lkml/2005/4/10/81">Ingo Molnar</a></li></ul></li><li><a href="/lkml/2005/4/21/49">Ingo Molnar</a><ul><li><a href="/lkml/2005/4/21/55">Paolo Ciarrocchi</a></li><li><a href="/lkml/2005/4/21/142">Daniel Walker</a></li><li><a href="/lkml/2005/4/21/185">Daniel Walker</a></li><li><a href="/lkml/2005/4/22/11">Ingo Molnar</a></li></ul></li></ul></li></ul></li></ul></li></ul></td><td width="32" rowspan="2" class="c" valign="top"><img src="/images/icornerl.gif" width="32" height="32" alt="/" /></td><td class="c" rowspan="2" valign="top" style="padding-top: 1em"><table><tr><td><table><tr><td class="lp">Date</td><td class="rp" itemprop="datePublished">Fri, 01 Apr 2005 12:31:55 -0500</td></tr><tr><td class="lp">From</td><td class="rp" itemprop="author">Gene Heskett <></td></tr><tr><td class="lp">Subject</td><td class="rp" itemprop="name">Re: [patch] Real-Time Preemption, -RT-2.6.12-rc1-V0.7.43-00</td></tr></table></td><td></td></tr></table><pre itemprop="articleBody">On Friday 01 April 2005 05:47, Ingo Molnar wrote:<br />>i have released the -V0.7.43-00 Real-Time Preemption patch, which<br />> can be downloaded from the usual place:<br />><br />> <a href="http://redhat.com/~mingo/realtime-preempt/">http://redhat.com/~mingo/realtime-preempt/</a><br />><br />>this release too is a step towards more robustness. I found a bug<br />> that caused an infinite recursion and subsequent spontaneous<br />> reboot. The bug was once again related to lock->debug locks, so i<br />> decided to get rid of them altogether: from now on every lock in<br />> the -RT domain is debugged.<br />><br />>To be able to use code that relies on incompatible properties of<br />> stock Linux semaphores (and rwsems), i've added a new compile-time<br />> semaphore-type mechanism that enables the easy switching from RT<br />> semaphores to stock semaphores. I've done this conversion for all<br />> subsystems that needed it - e.g. XFS, firewire, USB and SCSI. XFS<br />> seems to be working much better with this approach - BYMMV.<br />><br />>but an unavoidable side-effect is that the whole codebase got turned<br />>upside down once again, so be careful and expect a few rough edges. <br />> In particular keep an eye on new compile-time warnings related to<br />> semaphores - code that gives a warning might build but it will<br />> almost certainly not work.<br />><br />>to create a -V0.7.43-00 tree from scratch, the patching order is:<br />><br />> <a href="http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.11.tar.bz2">http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.11.tar.bz2</a><br /><br />I use the .gz, more reliable unpacks<br /><br />> <a href="http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.12-rc1.bz">http://kernel.org/pub/linux/kernel/v2.6/testing/patch-2.6.12-rc1.bz</a><br />>2<br /><br />Again I use the .gz<br /><br />> <a href="http://redhat.com/~mingo/realtime-preempt/realtime-preempt-2.6.12-r">http://redhat.com/~mingo/realtime-preempt/realtime-preempt-2.6.12-r</a><br />>c1-V0.7.43-00<br />><br />> Ingo<br /><br />It was up to 43-04 by the time I got there.<br /><br />This one didn't go in cleanly Ingo. From my build-src scripts output:<br />-------------------<br />Applying patch realtime-preempt-2.6.12-rc1-V0.7.43-04<br />[...]<br />patching file lib/rwsem-spinlock.c<br />Hunk #5 FAILED at 133.<br />Hunk #6 FAILED at 160.<br />Hunk #7 FAILED at 179.<br />Hunk #8 FAILED at 194.<br />Hunk #9 FAILED at 204.<br />Hunk #10 FAILED at 231.<br />Hunk #11 FAILED at 250.<br />Hunk #12 FAILED at 265.<br />Hunk #13 FAILED at 274.<br />Hunk #14 FAILED at 293.<br />Hunk #15 FAILED at 314.<br />11 out of 15 hunks FAILED -- saving rejects to file <br />lib/rwsem-spinlock.c.rej<br />-----------<br />I doubt it would run, so I haven't built it. Should I?<br /><br />-- <br />Cheers, Gene<br />"There are four boxes to be used in defense of liberty:<br /> soap, ballot, jury, and ammo. Please use in that order."<br />-Ed Howdershelt (Author)<br />99.34% setiathome rank, not too shabby for a WV hillbilly<br />Yahoo.com and AOL/TW attorneys please note, additions to the above<br />message by Gene Heskett are:<br />Copyright 2005 by Maurice Eugene Heskett, all rights reserved.<br />-<br />To unsubscribe from this list: send the line "unsubscribe linux-kernel" in<br />the body of a message to majordomo@vger.kernel.org<br />More majordomo info at <a href="http://vger.kernel.org/majordomo-info.html">http://vger.kernel.org/majordomo-info.html</a><br />Please read the FAQ at <a href="http://www.tux.org/lkml/">http://www.tux.org/lkml/</a><br /><br /></pre></td><td width="32" rowspan="2" class="c" valign="top"><img src="/images/icornerr.gif" width="32" height="32" alt="\" /></td></tr><tr><td align="right" valign="bottom"> 聽 </td></tr><tr><td align="right" valign="bottom">聽</td><td class="c" valign="bottom" style="padding-bottom: 0px"><img src="/images/bcornerl.gif" width="32" height="32" alt="\" /></td><td class="c">聽</td><td class="c" valign="bottom" style="padding-bottom: 0px"><img src="/images/bcornerr.gif" width="32" height="32" alt="/" /></td></tr><tr><td align="right" valign="top" colspan="2"> 聽 </td><td class="lm">Last update: 2005-04-06 13:31 聽聽 [from the cache]<br />漏2003-2020 <a href="http://blog.jasper.es/"><span itemprop="editor">Jasper Spaans</span></a>|hosted at <a href="https://www.digitalocean.com/?refcode=9a8e99d24cf9">Digital Ocean</a> and my Meterkast|<a href="http://blog.jasper.es/categories.html#lkml-ref">Read the blog</a></td><td>聽</td></tr></table><script language="javascript" src="/js/styleswitcher.js" type="text/javascript"></script></body></html>