<div dir="ltr">Pull a git repository from <span style="color:rgb(0,0,0);font-family:courier,monospace;font-size:12px;line-height:15px;white-space:pre-wrap;background-color:rgb(255,248,237)"> git://<a href="http://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git">git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git</a></span><div><font color="#000000" face="courier, monospace"><span style="font-size:12px;line-height:15px;white-space:pre-wrap"><br></span></font></div><div><font color="#000000" face="courier, monospace"><span style="font-size:12px;line-height:15px;white-space:pre-wrap">and create branch for the specific version of kernel that you are interested in. </span></font></div><div><font color="#000000" face="courier, monospace"><span style="font-size:12px;line-height:15px;white-space:pre-wrap"><br></span></font></div><div><font color="#000000" face="courier, monospace"><span style="font-size:12px;line-height:15px;white-space:pre-wrap">The <a href="http://kernelnewbies.org/KernelBuild">http://kernelnewbies.org/KernelBuild</a> gives all the instructions under the "Which kernel to build?" section. <br></span></font><br><div class="gmail_quote">On Thu, Apr 23, 2015 at 9:00 AM <<a href="mailto:kernelnewbies-request@kernelnewbies.org">kernelnewbies-request@kernelnewbies.org</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send Kernelnewbies mailing list submissions to<br>
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Today's Topics:<br>
<br>
1. How can I fetch the files likely directory<br>
/usr/src/kernels/<kernel version> from kernel source tree? (tianlilai)<br>
2. execve error (Rohith)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Thu, 23 Apr 2015 17:59:56 +0800<br>
From: tianlilai <<a href="mailto:laitianli2015@outlook.com" target="_blank">laitianli2015@outlook.com</a>><br>
Subject: How can I fetch the files likely directory<br>
/usr/src/kernels/<kernel version> from kernel source tree?<br>
To: <a href="mailto:kernelnewbies@kernelnewbies.org" target="_blank">kernelnewbies@kernelnewbies.org</a><br>
Message-ID: <BLU436-SMTP88F0913B3897AE70E7C950A9ED0@phx.gbl><br>
Content-Type: text/plain; charset="utf-8"; format=flowed<br>
<br>
<br>
Hi,I have built the kernel source tree and running in PC mechine.Now I<br>
want to fetch the files likely directory /usr/src/kernels/<kernel<br>
version> from this kernel source tree.How can I do? Thanks very much!<br>
<br>
<br>
<br>
<br>
------------------------------<br>
<br>
Message: 2<br>
Date: Thu, 23 Apr 2015 17:55:22 +0530<br>
From: Rohith <<a href="mailto:itsnotrohit@gmail.com" target="_blank">itsnotrohit@gmail.com</a>><br>
Subject: execve error<br>
To: <a href="mailto:kernelnewbies@kernelnewbies.org" target="_blank">kernelnewbies@kernelnewbies.org</a><br>
Message-ID:<br>
<<a href="mailto:CABsTBT6S0vRNFo0bxxBcWDx3k8JMpzbYyKbbUB8oxT-W%2B8Tr-A@mail.gmail.com" target="_blank">CABsTBT6S0vRNFo0bxxBcWDx3k8JMpzbYyKbbUB8oxT-W+8Tr-A@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Hi all,<br>
<br>
I'm facing a strange issue with execve. It fails with -EFAULT<br>
intermittently. I found that whenever it failed the stack allocated to the<br>
process is in the last page of the CONFIG_TASK_SIZE.<br>
<br>
For example, if CONFIG_TASK_SIZE is set to 0x4000_0000, the process would<br>
fail in execve if the stack happens to be in the page:<br>
<br>
3ffdf000-40000000 rw-p 00000000 00:00 0 [stack]<br>
<br>
I tried changing CONFIG_TASK_SIZE=0x30000000 and the process this time<br>
fails at the end 0x30000000 address.<br>
<br>
I also found that the execve seem to use the largest stack address<br>
(STACK_TOP_MAX, function __bprm_mm_init(), fs/exec.c) while copying<br>
argv/envp to the new process space.<br>
<br>
I don't know how to debug further. I feel that the user process stack<br>
should never be allocated at the CONFIG_TASK_SIZE? Any idea or suggestion<br>
on how to debug further, please tell me.<br>
<br>
thanks,<br>
rohit<br>
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End of Kernelnewbies Digest, Vol 53, Issue 48<br>
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