i.MX ProcessorsのトピックRe: rcu_preempt issue https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803272#M124080 <HTML><HEAD></HEAD><BODY><P>Hi <A _jive_internal="true" data-avatarid="29594" data-externalid="" data-online="false" data-presence="null" data-userid="332431" data-username="57063778@qq.com" href="https://community.nxp.com/people/57063778@qq.com">57063778@qq.com</A>&nbsp;</P><P></P><P>actually it is the same link, you can find all relevant documentation on</P><P><A class="link-titled" href="https://www.nxp.com/support/developer-resources/run-time-software/i.mx-developer-resources/i.mx-software-and-development-tool:IMX_SW" title="https://www.nxp.com/support/developer-resources/run-time-software/i.mx-developer-resources/i.mx-software-and-development-tool:IMX_SW">i.MX Software|NXP</A>&nbsp;</P><P></P><P>Best regards<BR />igor</P></BODY></HTML> Thu, 20 Dec 2018 03:24:30 GMT igorpadykov 2018-12-20T03:24:30Z rcu_preempt issue https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803266#M124074 <HTML><HEAD></HEAD><BODY><P style="color: #51626f; background-color: #ffffff; border: 0px;">Hi,all</P><P style="color: #51626f; background-color: #ffffff; border: 0px;">&nbsp;</P><P style="color: #51626f; background-color: #ffffff; border: 0px;">&nbsp; &nbsp; I am facing&nbsp;a Linux kernel dump issue after running about 48 hours. The BSP is Yocto with Linux 3.14.28 and the CPU is imx6Q. The dump information is as follow and how to fix the issue? Thanks in advance.</P><P style="color: #51626f; background-color: #ffffff; border: 0px;">&nbsp;</P><P style="color: #51626f; background-color: #ffffff; border: 0px;">Dec 5 05:36:35 linux user.err kernel: INFO: rcu_preempt detected stalls on CPUs/tasks: { 2} (detected by 1, t=2102 jiffies, g=45107986, c=45107985, q=5227)<BR />Dec 5 05:36:35 linux user.info kernel: Task dump for CPU 2:<BR />Dec 5 05:36:35 linux user.info kernel: grep R running 0 1231 1228 0x00000002<BR />Dec 5 05:36:35 linux user.warn kernel: [&lt;80716800&gt;] (__schedule) from [&lt;a9c94020&gt;] (0xa9c94020)</P></BODY></HTML> Mon, 17 Dec 2018 11:23:17 GMT https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803266#M124074 57063778 2018-12-17T11:23:17Z Re: rcu_preempt issue https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803267#M124075 <HTML><HEAD></HEAD><BODY><P>Hi</P><P></P><P>usually rcu_preempt errors happen due to arm/gpu bugs which were fixed in later nxp</P><P>linux releases (they are documented in Release Notes found on below link)</P><P><A class="link-titled" href="https://www.nxp.com/support/developer-resources/run-time-software/i.mx-developer-resources/i.mx-6series-i.mx-7series-software-and-development-tool-resources:IMX_SW" title="https://www.nxp.com/support/developer-resources/run-time-software/i.mx-developer-resources/i.mx-6series-i.mx-7series-software-and-development-tool-resources:IMX_SW">i.MX Software|NXP</A>&nbsp;</P><P></P><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Tue, 18 Dec 2018 00:03:20 GMT https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803267#M124075 igorpadykov 2018-12-18T00:03:20Z Re: rcu_preempt issue https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803268#M124076 <HTML><HEAD></HEAD><BODY><P>Hi igor,</P><P>&nbsp;&nbsp;&nbsp;Thanks for your reply.</P><P>&nbsp; &nbsp;Will the linux "<A href="https://source.codeaurora.org/external/imx/linux-imx" rel="vcs-git" style="color: black; background-color: #ffffff; text-decoration: none; font-size: 13.3333px;" title="linux-imx Git repository">https://source.codeaurora.org/external/imx/linux-imx</A>&nbsp;-b&nbsp;<A href="https://source.codeaurora.org/external/imx/linux-imx/log/?h=imx_4.14.78_1.0.0_ga" style="color: black; background-color: #ffffff; text-decoration: none; font-size: 13.3333px;">imx_4.14.78_1.0.0_ga</A>" fix the RCU issue? Or which version can fix the issue?</P></BODY></HTML> Tue, 18 Dec 2018 10:27:16 GMT https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803268#M124076 57063778 2018-12-18T10:27:16Z Re: rcu_preempt issue https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803269#M124077 <HTML><HEAD></HEAD><BODY><P>Hi</P><P></P><P>please try latest described on nxp official software page</P><P><A class="jive-link-external-small" href="https://community.nxp.com/external-link.jspa?url=https%3A%2F%2Fwww.nxp.com%2Fsupport%2Fdeveloper-resources%2Frun-time-software%2Fi.mx-developer-resources%2Fi.mx-6series-i.mx-7series-software-and-development-tool-resources%3AIMX_SW" rel="nofollow" target="_blank">https://www.nxp.com/support/developer-resources/run-time-software/i.mx-developer-resources/i.mx-6series-i.mx-7series-software-and-development-tool-resources:IMX_SW</A></P><P></P><P>Best regards<BR />igor</P></BODY></HTML> Wed, 19 Dec 2018 02:02:38 GMT https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803269#M124077 igorpadykov 2018-12-19T02:02:38Z Re: rcu_preempt issue https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803270#M124078 <HTML><HEAD></HEAD><BODY><P>Hi&nbsp;<A _jive_internal="true" data-avatarid="1034" data-externalid="" data-online="false" data-presence="null" data-userid="206296" data-username="igorpadykov" href="https://community.nxp.com/people/igorpadykov" style="color: inherit; background-color: #ffffff; border: 0px; font-weight: bold; text-decoration: none; font-size: 14px;">igorpadykov</A>,</P><P>&nbsp; &nbsp; The URL"<A href="https://community.nxp.com/external-link.jspa?url=https%3A%2F%2Fwww.nxp.com%2Fsupport%2Fdeveloper-resources%2Frun-time-software%2Fi.mx-developer-resources%2Fi.mx-6series-i.mx-7series-software-and-development-tool-resources%3AIMX_SW" rel="nofollow" style="color: #3d9ce7; background-color: #ffffff; border: 0px; text-decoration: underline; font-size: 14px; padding: 0px calc(12px + 0.35ex) 0px 0px;" target="_blank">https://www.nxp.com/support/developer-resources/run-time-software/i.mx-developer-resources/i.mx-6series-i.mx-7series-software-and-development-tool-resources:IMX_SW</A>" always redirect to "<A class="link-titled" href="https://www.nxp.com/support/developer-resources/run-time-software/i.mx-developer-resources/i.mx-software-and-development-tool:IMX_SW" title="https://www.nxp.com/support/developer-resources/run-time-software/i.mx-developer-resources/i.mx-software-and-development-tool:IMX_SW">i.MX Software|NXP</A><SPAN>&nbsp;". And I can not get the right information. Would you please send the according material to my email: </SPAN><A class="jive-link-email-small" href="mailto:xuyongxian@kehua.com">xuyongxian@kehua.com</A><SPAN>.&nbsp; Thank you very much.</SPAN></P></BODY></HTML> Wed, 19 Dec 2018 03:36:04 GMT https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803270#M124078 57063778 2018-12-19T03:36:04Z Re: rcu_preempt issue https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803271#M124079 <HTML><HEAD></HEAD><BODY><P>please try for example with L4.9.88 :</P><P><A href="https://source.codeaurora.org/external/imx/linux-imx/tree/?h=imx_4.9.88_2.0.0_ga">https://source.codeaurora.org/external/imx/linux-imx/tree/?h=imx_4.9.88_2.0.0_ga</A></P><P><A class="link-titled" href="https://www.nxp.com/webapp/Download?colCode=L4.9.88_2.0.0_LINUX_DOCS" title="https://www.nxp.com/webapp/Download?colCode=L4.9.88_2.0.0_LINUX_DOCS">https://www.nxp.com/webapp/Download?colCode=L4.9.88_2.0.0_LINUX_DOCS</A>&nbsp;</P><P></P><P>Best regards<BR />igor</P></BODY></HTML> Wed, 19 Dec 2018 05:37:38 GMT https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803271#M124079 igorpadykov 2018-12-19T05:37:38Z Re: rcu_preempt issue https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803272#M124080 <HTML><HEAD></HEAD><BODY><P>Hi <A _jive_internal="true" data-avatarid="29594" data-externalid="" data-online="false" data-presence="null" data-userid="332431" data-username="57063778@qq.com" href="https://community.nxp.com/people/57063778@qq.com">57063778@qq.com</A>&nbsp;</P><P></P><P>actually it is the same link, you can find all relevant documentation on</P><P><A class="link-titled" href="https://www.nxp.com/support/developer-resources/run-time-software/i.mx-developer-resources/i.mx-software-and-development-tool:IMX_SW" title="https://www.nxp.com/support/developer-resources/run-time-software/i.mx-developer-resources/i.mx-software-and-development-tool:IMX_SW">i.MX Software|NXP</A>&nbsp;</P><P></P><P>Best regards<BR />igor</P></BODY></HTML> Thu, 20 Dec 2018 03:24:30 GMT https://community.nxp.com/t5/i-MX-Processors/rcu-preempt-issue/m-p/803272#M124080 igorpadykov 2018-12-20T03:24:30Z