From: Uladzislau Rezki <urezki@gmail.com>
To: sathyanarayanan kuppuswamy <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>,
Uladzislau Rezki <urezki@gmail.com>,
akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 1/1] mm/vmalloc.c: Fix percpu free VM area search criteria
Date: Wed, 31 Jul 2019 00:34:00 +0200 [thread overview]
Message-ID: <20190730223400.hzsyjrxng2s5gk4u@pc636> (raw)
In-Reply-To: <9fdd44c2-a10e-23f0-a71c-bf8f3e6fc384@linux.intel.com>
Hello, Sathyanarayanan.
>
> I agree with Dave. I don't think this issue is related to NUMA. The problem
> here is about the logic we use to find appropriate vm_area that satisfies
> the offset and size requirements of pcpu memory allocator.
>
> In my test case, I can reproduce this issue if we make request with offset
> (ffff000000) and size (600000).
>
Just to clarify, does it mean that on your setup you have only one area with the
600000 size and 0xffff000000 offset?
Thank you.
--
Vlad Rezki
next prev parent reply other threads:[~2019-07-30 22:34 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-29 23:21 sathyanarayanan.kuppuswamy
2019-07-30 20:46 ` Uladzislau Rezki
2019-07-30 20:54 ` Dave Hansen
2019-07-30 21:09 ` Dennis Zhou
2019-07-30 21:13 ` sathyanarayanan kuppuswamy
2019-07-30 21:55 ` Dennis Zhou
2019-07-30 22:25 ` sathyanarayanan kuppuswamy
2019-07-30 22:34 ` Uladzislau Rezki [this message]
2019-07-30 22:37 ` sathyanarayanan kuppuswamy
2019-07-31 12:04 ` Uladzislau Rezki
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190730223400.hzsyjrxng2s5gk4u@pc636 \
--to=urezki@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=dave.hansen@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=sathyanarayanan.kuppuswamy@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox