From: Karthikraj palanichamy <karthikraj.palanichamy@veryxtech.com>
To: dev@dpdk.org
Subject: [dpdk-dev] Problem in configuring buffer size of a memory pool
Date: Thu, 9 Feb 2017 12:08:54 +0530 [thread overview]
Message-ID: <589C0E7E.7080400@veryxtech.com> (raw)
Hi developers,
For /`rte_pktmbuf_pool_create()`, /I normally provide
RTE_MBUF_DEFAULT_BUF_SIZE as the data room size.
I needed to change this dynamically based on the frame size to be
transmitted.
To transmit 80 bytes frames, I configured (80 +/RTE_PKTMBUF_HEADROOM/).
There was no problem and transmission was successful.
Then I will do `rte_mempool_free()` and create mem pool again whenever
needed.
So, my code flow is /create mempool -> transmit pkts -> free mempool/
When I do this for 3 to 5 times, I get segmentation fault in the
transmission API of the PMD. - 'eth_igb_xmit_pkts' for igb PMD and
'ixgbe_xmit_pkts_vec()' for ixgbe PMD.
Thanks in advance for your help.
Regards
Karthik
DISCLAIMER: Privileged and/or Confidential information may be
contained in this message. If you are not the addressee of this message,
you may not copy, use or deliver this message to anyone. In such
event,you should destroy the message and kindly notify the sender by
reply e-mail.
It is understood that opinions or conclusions that do not relate to the
official business of the company are neither given nor endorsed by the
company.
next reply other threads:[~2017-02-09 6:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-09 6:38 Karthikraj palanichamy [this message]
2017-02-09 9:19 ` Bruce Richardson
2017-02-09 10:11 ` Karthikraj palanichamy
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=589C0E7E.7080400@veryxtech.com \
--to=karthikraj.palanichamy@veryxtech.com \
--cc=dev@dpdk.org \
/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;
as well as URLs for NNTP newsgroup(s).