[minicoredumper] Error reading from /proc/<pid>/mem

[work ran]

hi
i am using linux kernel 2.6.32-642 from Centos
i have installed

elfutils-libelf-0.152-1.el6.x86_64
elfutils-libs-0.152-1.el6.x86_64
glib2-2.22.5-5.el6.x86_64
glibc-2.12-1.192.el6.x86_64
glibc-2.12-1.192.el6.i686
glibc-utils-2.12-1.192.el6.x86_64
glibc-common-2.12-1.192.el6.x86_64

the errors i get are:

read_remote failed: len=4, addr=0x400040, dest=0xca31d6ac, errno="Operation
not permitted"


thanks

Ran





On Thu, Feb 22, 2018 at 12:10 AM, John Ogness <john.ogness at linutronix.de>
wrote:

> Hi,
>
> On 2018-02-21, work ran <work.greeran at gmail.com> wrote:
> > i am trying to use the minicoredumper but am getting errors
> > errno="Operation not permitted" when trying to pread64 from the
> > /proc/<pid>/mem on an application that crashed. i tried wrapping the
> > code with ptrace attach and detach but with no change.
> >
> > could someone tell me what i am doing wrong
>
> What kernel are you using (version and distribution)?
>
> John Ogness
>
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