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<p class=MsoNormal><span lang=EN-US>Hi,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>
I got a problem when trying to boot linux 2.6.32.13 on my Octeon CN5650 board.<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US
style='color:red'>Booting logs below:<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>...omit….<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>EXT3-fs warning:
maximal mount count reached, running e2fsck is recommended<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>kjournald
starting. Commit interval 5 seconds<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>EXT3 FS on
mtdblock1, internal journal<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>EXT3-fs:
recovery complete.<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>EXT3-fs: mounted
filesystem with ordered data mode.<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>VFS: Mounted
root (ext3 filesystem) on device 31:1.<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>Freeing unused
kernel memory: 176k freed<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><b><span lang=EN-US
style='color:red'>Kernel panic - not syncing: Attempted to kill
init! </span></b><b><span lang=EN-US style='font-family:
Wingdings;color:red'>ß</span><span lang=EN-US style='color:red'> kernel panic
here <o:p></o:p></span></b></p>
<p class=MsoNormal><b><span lang=EN-US style='color:red'><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span lang=EN-US style='color:red'>What I do:<o:p></o:p></span></b></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>1</span><span
style='font-family:宋体'>、</span><span lang=EN-US>The busybox init is OK in
another version kernel .I replace init with “Hello world” prog or dead loop
prog, kernel panic still.<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>2</span><span
style='font-family:宋体'>、</span><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:21.0pt'><span
lang=EN-US>run_init_process(“/sbin/init”) </span><span lang=EN-US
style='font-family:Wingdings'>à</span><span lang=EN-US> kernel_execve </span><span
lang=EN-US style='font-family:Wingdings'>à</span><span lang=EN-US> sys_execve<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:21.0pt'><span
lang=EN-US>so I add some debug msgs in sys_execve.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:21.0pt;text-indent:21.0pt'><span
lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>asmlinkage int
sys_execve(nabi_no_regargs struct pt_regs regs)<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>{<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>
int error;<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>
char * filename;<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US> <span
style='color:red'> <b>printk("enter sys_execve\n");<o:p></o:p></b></span></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>
filename = getname((char __user *) (long)regs.regs[4]);<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>
error = PTR_ERR(filename);<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>
if (IS_ERR(filename))<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>
goto out;<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>
error = do_execve(filename, (char __user *__user *) (long)regs.regs[5],<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>
(char __user *__user *) (long)regs.regs[6], &regs);<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>
putname(filename);<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>
<b><span style='color:red'>printk("out sys_execve\n");<o:p></o:p></span></b></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>out:<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>
return error;<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>}<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><b><span lang=EN-US
style='color:red'>Boot logs:<o:p></o:p></span></b></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>VFS: Mounted
root (ext3 filesystem) on device 31:1.<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>Freeing unused
kernel memory: 176k freed<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><b><span lang=EN-US
style='color:red'>enter sys_execve<o:p></o:p></span></b></p>
<p class=MsoNormal style='text-indent:21.0pt'><b><span lang=EN-US
style='color:red'>out sys_execve<o:p></o:p></span></b></p>
<p class=MsoNormal style='text-indent:21.0pt'><b><span lang=EN-US
style='color:red'>Kernel panic - not syncing: Attempted to kill
init! </span></b><b><span lang=EN-US style='font-family:
Wingdings;color:red'>ß</span><span lang=EN-US style='color:red'> kernel panic
here <o:p></o:p></span></b></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>My question:<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>1.the kernel
panic happened when return to userspace prog? <o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>2.how to solve
this problem?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Thank you!<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
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