On Thu, Jun 4, 2015 at 10:47 AM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > On Thu, Jun 04, 2015 at 09:52:08AM +0530, Navin P wrote: >> Hi, >> >> I want to change the cmdline of a process to support 8096 . It works >> well on ppc where the page size is 65k. >> But when i try to increase it on x86 (i686) >> >> http://lxr.free-electrons.com/source/fs/proc/base.c by doing >> 6*PAGE_SIZE, i get kernel panic after some time >> >> 199 static int proc_pid_cmdline(struct seq_file *m, struct pid_namespace *ns, >> 200 struct pid *pid, struct task_struct *task) >> 201 { >> 202 /* >> 203 * Rely on struct seq_operations::show() being called once >> 204 * per internal buffer allocation. See single_open(), traverse(). >> 205 */ >> 206 BUG_ON(m->size < PAGE_SIZE); >> 207 m->count += get_cmdline(task, m->buf, 6*PAGE_SIZE); >> 208 return 0; >> 209 } >> 210 > > That shows you that this will not work, sorry. Can you please help me and guide me into achieving this ? _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
