netdev - Re: [PATCH net-next v3] selftests: net: ksft: print more of the stack for checks

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Message-ID: <877ccv5myt.fsf@nvidia.com>
Date: Mon, 5 Aug 2024 11:37:41 +0200
From: Petr Machata <petrm@...dia.com>
To: Jakub Kicinski <kuba@...nel.org>
CC: <davem@...emloft.net>, <netdev@...r.kernel.org>, <edumazet@...gle.com>,
	<pabeni@...hat.com>, <sdf@...ichev.me>, <shuah@...nel.org>,
	<petrm@...dia.com>
Subject: Re: [PATCH net-next v3] selftests: net: ksft: print more of the
 stack for checks


Jakub Kicinski <kuba@...nel.org> writes:

> Print more stack frames and the failing line when check fails.
> This helps when tests use helpers to do the checks.
>
> Before:
>
>   # At ./ksft/drivers/net/hw/rss_ctx.py line 92:
>   # Check failed 1037698 >= 396893.0 traffic on other queues:[344612, 462380, 233020, 449174, 342298]
>   not ok 8 rss_ctx.test_rss_context_queue_reconfigure
>
> After:
>
>   # Check| At ./ksft/drivers/net/hw/rss_ctx.py, line 387, in test_rss_context_queue_reconfigure:
>   # Check|     test_rss_queue_reconfigure(cfg, main_ctx=False)
>   # Check| At ./ksft/drivers/net/hw/rss_ctx.py, line 230, in test_rss_queue_reconfigure:
>   # Check|     _send_traffic_check(cfg, port, ctx_ref, { 'target': (0, 3),
>   # Check| At ./ksft/drivers/net/hw/rss_ctx.py, line 92, in _send_traffic_check:
>   # Check|     ksft_lt(sum(cnts[i] for i in params['noise']), directed / 2,
>   # Check failed 1045235 >= 405823.5 traffic on other queues (context 1)':[460068, 351995, 565970, 351579, 127270]
>   not ok 8 rss_ctx.test_rss_context_queue_reconfigure
>
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>

Reviewed-by: Petr Machata <petrm@...dia.com>