[Starlingx-discuss] Opinion wanted on STX 2.0 kernel memory leak bug 1836638

Xie, Cindy cindy.xie at intel.com
Fri Aug 23 01:17:04 UTC 2019


Yes, I think we should do on both kernels, the chances that we didn't see std kernel leak might due to our test cases coverage, but as we now have root-causes, we shall get it fixed.

-----Original Message-----
From: Rowsell, Brent [mailto:Brent.Rowsell at windriver.com] 
Sent: Friday, August 23, 2019 5:54 AM
To: Somerville, Jim <Jim.Somerville at windriver.com>
Cc: starlingx <starlingx-discuss at lists.starlingx.io>; Troyer, Dean <dean.troyer at intel.com>; Saul Wold <sgw at linux.intel.com>; Wang, Yi C <yi.c.wang at intel.com>
Subject: Re: [Starlingx-discuss] Opinion wanted on STX 2.0 kernel memory leak bug 1836638

Nice work !
+1 on doing both kernels.

Brent

Sent from my iPhone

> On Aug 23, 2019, at 5:58 AM, Jim Somerville <jim.somerville at windriver.com> wrote:
> 
> Hi Folks,
> 
> I have identified 3 kernel patches to fix the observed memory leak in the RT kernel.  Namely listed here in comment 53: https://bugs.launchpad.net/starlingx/+bug/1836638/comments/53
> 
> While the leak is only really seen in RT, the fixes are not RT specific.  The RT kernel has ferreted out many linux bugs in the past mainly due to its different scheduling points, and running irq handlers as kernel threads, causing things to run in a different order from std.
> 
> So should these patches be applied to both of our kernels, even though we only see the leaking on RT?  I would say yes, but don't want to waste my, and possibly Yi's, time if approvers disagree.
> 
> Thanks,
> 
> -Jim

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