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From: Petr Vorel <pvorel@suse.cz>
To: Andrea Cervesato <andrea.cervesato@suse.de>
Cc: ltp@lists.linux.it
Subject: Re: [LTP] [PATCH v1] Fix synchronization problem with dio tests
Date: Mon, 29 Jan 2024 11:32:27 +0100	[thread overview]
Message-ID: <20240129103227.GA608492@pevik> (raw)
In-Reply-To: <20240129101448.14463-1-andrea.cervesato@suse.de>

Hi Andrea,

> When system is really fast processing I/O syscalls, multiple childrean
> running I/O operations might lock the parent, causing
> tst_reap_childrean() to stuck. By adding a small usleep at the
> end of the reading I/O operations, which are used by dio_append and
> dio_read tests, we ensure that system has enough breath to end tests
> correctly and to process children exit.

Thanks for fixing this! Test already does some usleep(100).

For a record, this triggered a failure on s39Ox on SLE 15-SP6.

Reviewed-by: Petr Vorel <pvorel@suse.cz>

Kind regards,
Petr

-- 
Mailing list info: https://lists.linux.it/listinfo/ltp

  reply	other threads:[~2024-01-29 10:32 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-29 10:14 [LTP] [PATCH v1] Fix synchronization problem with dio tests Andrea Cervesato
2024-01-29 10:32 ` Petr Vorel [this message]
2024-01-29 15:01 ` Cyril Hrubis
2024-01-29 15:41   ` Andrea Cervesato via ltp
2024-01-29 17:36     ` Petr Vorel

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