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From: Avinesh Kumar via ltp <ltp@lists.linux.it>
To: Wake Liu <wakel@google.com>, Li Wang <li.wang@linux.dev>,
	Andrea Cervesato <andrea.cervesato@suse.com>
Cc: ltp@lists.linux.it
Subject: Re: [LTP] [PATCH v6] lib: Use backoff polling to wait for loop device nodes
Date: Wed, 12 Aug 2026 13:13:14 +0200	[thread overview]
Message-ID: <c41e20c9-86c2-43ae-8264-04434ee54f62@suse.com> (raw)
In-Reply-To: <20260807234935.3248935-1-wakel@google.com>

Hi,


d90d2004657b ("lib: Use backoff polling to wait for loop
   device nodes")

This patch introduces a regression in few old API based tests which
call tst_acquire_device() -> tst_find_free_loopdev()/tst_attach_device()):

     - linkat02
     - mknodat02
     - rename11
     - renameat01
     - umount2_01

these fail with
tst_kconfig.c:90: TINFO: Parsing kernel config '/proc/config.gz'
linkat02    1  TBROK  :  tst_sig.c:232: unexpected signal SIGCHLD(17) 
received (pid = 122504).
linkat02    2  TBROK  :  Remaining cases broken

which comes from def_handler(int sig) in lib/tst_sig.c

The old API treats SIGCHLD as fatal, which is now being generated while
reading the kconfig file. So we need to address this until we convert
these tests to new API, maybe by intentionally avoiding
TST_RETRY_FN_EXP_BACKOFF()/tst_multiply_timeout() for now.


Regards,
Avinesh



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

  parent reply	other threads:[~2026-08-12 11:13 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-03 15:27 [LTP] [PATCH] lib: Use exponential-backoff polling to wait for loop device nodes Wake Liu via ltp
2026-08-03 16:28 ` [LTP] " linuxtestproject.agent
2026-08-04  1:59 ` [LTP] [PATCH v2] lib: Use backoff " Wake Liu via ltp
2026-08-04  3:58   ` Li Wang
2026-08-04 15:24     ` [LTP] [PATCH v3] " Wake Liu via ltp
2026-08-05  2:24       ` Li Wang
2026-08-05  2:54         ` [LTP] [PATCH v4] " Wake Liu via ltp
2026-08-05  4:09           ` [LTP] " linuxtestproject.agent
2026-08-05  6:53             ` Li Wang
2026-08-05  6:35           ` [LTP] [PATCH v4] " Li Wang
2026-08-05  6:52           ` Andrea Cervesato via ltp
2026-08-05  6:55           ` Andrea Cervesato via ltp
2026-08-05  7:10             ` Li Wang
2026-08-07 10:04               ` [LTP] [PATCH v5] " Wake Liu via ltp
2026-08-07 11:05                 ` [LTP] " linuxtestproject.agent
2026-08-07 23:49                   ` [LTP] [PATCH v6] " Wake Liu via ltp
2026-08-08  1:32                     ` [LTP] " linuxtestproject.agent
2026-08-10  3:55                       ` Li Wang
2026-08-10  4:16                         ` Wake Liu via ltp
2026-08-10  2:58                     ` [LTP] [PATCH v7 0/2] Fix overflow and use backoff polling for loop devices Wake Liu via ltp
2026-08-10  2:58                       ` [LTP] [PATCH v7 1/2] lib: Fix overflow in backoff polling and timeout multiplication Wake Liu via ltp
2026-08-10  3:56                         ` [LTP] " linuxtestproject.agent
2026-08-10  9:17                         ` [LTP] [PATCH v7 1/2] " Andrea Cervesato via ltp
2026-08-10 10:02                         ` Li Wang
2026-08-10  2:58                       ` [LTP] [PATCH v7 2/2] lib: Use backoff polling to wait for loop device nodes Wake Liu via ltp
2026-08-10  9:17                         ` Andrea Cervesato via ltp
2026-08-10 10:10                     ` [LTP] [PATCH v6] " Li Wang
2026-08-10 12:30                       ` Wake Liu via ltp
2026-08-12 11:13                     ` Avinesh Kumar via ltp [this message]
2026-08-12 13:19                       ` Petr Vorel

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