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From: Stephen Hemminger <stephen@networkplumber.org>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: dev@dpdk.org, stable@dpdk.org,
	Ciara Power <ciara.power@intel.com>,
	Declan Doherty <declan.doherty@intel.com>,
	Radu Nicolau <radu.nicolau@intel.com>
Subject: Re: [PATCH] telemetry: fix autotest failures on Alpine
Date: Fri, 10 Mar 2023 11:08:32 -0800	[thread overview]
Message-ID: <20230310110832.1cfa47e5@hermes.local> (raw)
In-Reply-To: <20230310181836.162336-1-bruce.richardson@intel.com>

On Fri, 10 Mar 2023 18:18:36 +0000
Bruce Richardson <bruce.richardson@intel.com> wrote:

> On Alpine linux, the telemetry_data_autotest was failing for the
> test where we had dictionaries embedded in other dictionaries up
> to three levels deep. Indications are that this issue is due to
> excess data being stored on the stack, so replace stack-allocated
> buffer data with dynamically allocated data in the case where we
> are doing recursive processing of telemetry data structures into
> json.
> 
> Bugzilla ID: 1177
> Fixes: c933bb5177ca ("telemetry: support array values in data object")
> Fixes: d2671e642a8e ("telemetry: support dict of dicts")
> Cc: stable@dpdk.org

Looking at the telemetry code:

- why so many temporary buffers, could this be streamed or redesigned
  so that an allocated buffer is returned.

- why is rte_tel_json_XXX all inline?  These should just be internal
  functions and not in a .h file.

FYI - if this library reused existing json writer it would have
been much simpler.  
https://github.com/shemminger/iproute2/blob/main/lib/json_writer.c

  reply	other threads:[~2023-03-10 19:08 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-10 18:18 Bruce Richardson
2023-03-10 19:08 ` Stephen Hemminger [this message]
2023-03-13  9:38   ` Bruce Richardson
     [not found] ` <20230405154414.183915-1-bruce.richardson@intel.com>
2023-04-05 15:44   ` [PATCH v2 1/5] " Bruce Richardson
2023-04-07 19:21     ` Tyler Retzlaff
2023-04-11  8:43       ` Bruce Richardson
     [not found] ` <20230405160326.186921-1-bruce.richardson@intel.com>
2023-04-05 16:03   ` [PATCH v3 " Bruce Richardson
2023-04-07 19:22     ` Tyler Retzlaff

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