Pull a git repository from git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
and create branch for the specific version of kernel that you are interested in.
The http://kernelnewbies.org/KernelBuild gives all the instructions under the "Which kernel to build?" section.
On Thu, Apr 23, 2015 at 9:00 AM <kernelnewbies-request@xxxxxxxxxxxxxxxxx> wrote:
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Today's Topics:
1. How can I fetch the files likely directory
/usr/src/kernels/<kernel version> from kernel source tree? (tianlilai)
2. execve error (Rohith)
----------------------------------------------------------------------
Message: 1
Date: Thu, 23 Apr 2015 17:59:56 +0800
From: tianlilai <laitianli2015@xxxxxxxxxxx>
Subject: How can I fetch the files likely directory
/usr/src/kernels/<kernel version> from kernel source tree?
To: kernelnewbies@xxxxxxxxxxxxxxxxx
Message-ID: <BLU436-SMTP88F0913B3897AE70E7C950A9ED0@xxxxxxx>
Content-Type: text/plain; charset="utf-8"; format=flowed
Hi,I have built the kernel source tree and running in PC mechine.Now I
want to fetch the files likely directory /usr/src/kernels/<kernel
version> from this kernel source tree.How can I do? Thanks very much!
------------------------------
Message: 2
Date: Thu, 23 Apr 2015 17:55:22 +0530
From: Rohith <itsnotrohit@xxxxxxxxx>
Subject: execve error
To: kernelnewbies@xxxxxxxxxxxxxxxxx
Message-ID:
<CABsTBT6S0vRNFo0bxxBcWDx3k8JMpzbYyKbbUB8oxT-W+8Tr-A@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="utf-8"
Hi all,
I'm facing a strange issue with execve. It fails with -EFAULT
intermittently. I found that whenever it failed the stack allocated to the
process is in the last page of the CONFIG_TASK_SIZE.
For example, if CONFIG_TASK_SIZE is set to 0x4000_0000, the process would
fail in execve if the stack happens to be in the page:
3ffdf000-40000000 rw-p 00000000 00:00 0 [stack]
I tried changing CONFIG_TASK_SIZE=0x30000000 and the process this time
fails at the end 0x30000000 address.
I also found that the execve seem to use the largest stack address
(STACK_TOP_MAX, function __bprm_mm_init(), fs/exec.c) while copying
argv/envp to the new process space.
I don't know how to debug further. I feel that the user process stack
should never be allocated at the CONFIG_TASK_SIZE? Any idea or suggestion
on how to debug further, please tell me.
thanks,
rohit
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