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SubjectRE: [PATCH] proc: move the adding option Ngid to the end of proc/PID/status
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Dear tejun

> -----Original Message-----
> From: htejun@gmail.com [mailto:htejun@gmail.com] On Behalf Of Tejun Heo
> Sent: Friday, April 17, 2015 11:26 AM
> To: Wang, Xiaoming
> Cc: akpm@linux-foundation.org; oleg@redhat.com;
> andriy.shevchenko@linux.intel.com; linux@rasmusvillemoes.dk;
> ebiederm@xmission.com; eparis@redhat.com; chenhanxiao@cn.fujitsu.com;
> tglx@linutronix.de; linux-kernel@vger.kernel.org; Schallberger, Timothy M;
> Zhang, Dongxing
> Subject: Re: [PATCH] proc: move the adding option Ngid to the end of
> proc/PID/status
>
> Hello,
>
> On Thu, Apr 16, 2015 at 11:15 PM, Wang, Xiaoming
> <xiaoming.wang@intel.com> wrote:
> > I am not sure exactly which kernel introduced this Ngid.
> > I check the git and found it added in
> > commit e29cf08b05dc0b8151d65704d96d525a9e179a6b
>
> git describe --contains says 3.13 and it's about 1.5 years ago.
>
Yes this kernel change is 1.5 years ago.
As we known not all user update the kernel so frequently.
They just use the stable one.
We met this issue when update to 3.13 now.
A lot of application failed to run which run well previously.
Do you have any idea on this issue?
> > And this change has destroyed the order already.
> > Moving the adding option Ngid to the end of proc/PID/status is to keep
> > order .
>
> There isn't any assurance that changing the order won't break a different set of
> programs which make different ordering assumptions.
> The new order is already out there. This isn't a legal dispute where the original
> owner is "right".
>
> --
> tejun
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