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From: "Burakov, Anatoly" <anatoly.burakov@intel.com>
To: Thomas Monjalon <thomas@monjalon.net>, dev@dpdk.org
Cc: sarosh.arif@emumba.com, Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [dpdk-dev] [PATCH v2] usertools: check 0-division with hugepage size
Date: Tue, 23 Mar 2021 11:30:38 +0000
Message-ID: <6593f04c-acb6-9671-dc86-29d52ab65d55@intel.com> (raw)
In-Reply-To: <20210321090903.612998-1-thomas@monjalon.net>

On 21-Mar-21 9:09 AM, Thomas Monjalon wrote:
> The default page size can be None, and the page size from user request
> can be 0 kB if lower than 1024. In these cases, a division will fail.
> In order to avoid a Python exception, the page size is checked
> and an error message "Invalid page size" is printed.
> 
> A similar error message is printed in set_hugepages()
> if the size is not supported, except at this stage the message can be
> completed with "Valid page sizes".
> Unfortunately the first check is too early to print such information.
> 
> A third error message can be printed in a different place (get_memsize)
> in case of a format issue, e.g. a negative size.
> The function get_memsize() is also used for total requested size,
> so the error message "not a valid page size" was potentially wrong.
> This message is replaced with the more general "is not a valid size".
> 
> Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
> Acked-by: Stephen Hemminger <stephen@networkplumber.org>
> ---
> v2: use simple "if not" construct for both None and 0
> ---
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>

-- 
Thanks,
Anatoly

  reply	other threads:[~2021-03-23 11:30 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-11 22:05 [dpdk-dev] [PATCH] " Thomas Monjalon
2021-02-11 23:18 ` Stephen Hemminger
2021-02-12 11:27 ` Burakov, Anatoly
2021-02-12 11:34   ` Thomas Monjalon
2021-03-21  9:09 ` [dpdk-dev] [PATCH v2] " Thomas Monjalon
2021-03-23 11:30   ` Burakov, Anatoly [this message]
2021-03-25 17:04     ` Thomas Monjalon

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