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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic troubleshooting/troubleshooting topic troubleshooting" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/watchdog/watchdog-time-data-lost.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">wdt 设置 pretimeout 失败</h1><div class="date inPage">15 Jul 2024</div><div style="color: gray;"></div><div class="- topic/body troubleshooting/troublebody body troublebody"><section class="- topic/section troubleshooting/condition section condition" data-ofbid="d200194e23__20250121171634"><p class="- topic/p p" data-ofbid="d200194e24__20250121171634">执行 wdt -s x -p y 失败，报无效的 timeout。</p></section><div class="- topic/bodydiv troubleshooting/troubleSolution bodydiv troubleSolution"><section class="- topic/section troubleshooting/cause section cause" data-ofbid="d200194e27__20250121171634"><h2 class="- topic/title title sectiontitle">Cause</h2><p class="- topic/p p" data-ofbid="d200194e30__20250121171634">Linux 的 Watchdog 子系统中对 timeout 和 pretimeout 参数有限制：pretimeout 必须小于
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timeout，如果不符合这个条件就会设置失败。</p></section><section class="- topic/section troubleshooting/remedy section remedy" data-ofbid="d200194e32__20250121171634"><h2 class="- topic/title title sectiontitle">Remedy</h2><p class="- topic/p troubleshooting/responsibleParty p responsibleParty" data-ofbid="d200194e35__20250121171634"></p><section class="- topic/ol task/steps ol steps"><div class="tasklabel"><h2 class="sectiontitle tasklabel">过程</h2></div><div class="- topic/ol task/steps ol steps" data-ofbid="d200194e36__20250121171634"><div class="- topic/li task/step li step p" data-ofbid="d200194e37__20250121171634"><span class="- topic/ph task/cmd ph cmd">设置 pretimeout 小于 timeout。</span></div></div></section></section></div></div></article></main></div>
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