From: Cyril Hrubis <chrubis@suse.cz>
To: Ralph Siemsen <ralph.siemsen@linaro.org>
Cc: LTP List <ltp@lists.linux.it>
Subject: Re: [LTP] [RFC PATCH] fallocate05: increase the fallocate and defallocate size
Date: Thu, 23 Sep 2021 16:33:20 +0200 [thread overview]
Message-ID: <YUyQMBLPbCs4/Gur@yuki> (raw)
In-Reply-To: <20210922165218.GA3081072@maple.netwinder.org>
Hi!
FYI I've tried to run syscalls on a VM with 256MB RAM just to see what
explodes and it looks like futex_cmp_requeue01 fails as well because we
don't have enough memory to fork 1000 processes. I guess that we really
need an API for at least rough scaling for the number of processes we
can run based on free memory. With that we could finally fix the
msgstress testcases as well.
Also it seems that in my case the tmpfs returns ENOSPC correctly when
the machine free memory gets low enough regardless of the limit set at
the mount time, and that's 4.19.0-16-amd64. So I guess that there may be
something wrong in the kernel you are testing after all.
--
Cyril Hrubis
chrubis@suse.cz
--
Mailing list info: https://lists.linux.it/listinfo/ltp
next prev parent reply other threads:[~2021-09-23 14:33 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-17 10:46 [LTP] [RFC PATCH] fallocate05: increase the fallocate and defallocate size Li Wang
2021-09-07 2:40 ` Li Wang
2021-09-07 2:40 ` Li Wang
2021-09-07 8:00 ` Jan Stancek
2021-09-07 8:00 ` Jan Stancek
2021-09-08 1:21 ` Li Wang
2021-09-08 1:21 ` Li Wang
2021-09-21 20:33 ` Ralph Siemsen
2021-09-22 5:03 ` Li Wang
2021-09-22 8:21 ` Cyril Hrubis
2021-09-22 9:53 ` Li Wang
2021-09-22 9:56 ` Cyril Hrubis
2021-09-22 10:34 ` Li Wang
2021-09-22 14:32 ` Cyril Hrubis
2021-09-22 16:52 ` Ralph Siemsen
2021-09-23 3:00 ` Li Wang
2021-09-23 6:29 ` Li Wang
2021-09-23 13:09 ` Cyril Hrubis
2021-09-24 4:27 ` Li Wang
2021-09-23 14:33 ` Cyril Hrubis [this message]
2021-09-24 1:49 ` Ralph Siemsen
2021-09-24 4:18 ` Li Wang
2021-09-24 15:11 ` Ralph Siemsen
2021-09-24 18:26 ` Cyril Hrubis
2021-09-24 20:26 ` Ralph Siemsen
2021-09-25 2:16 ` Ralph Siemsen
2021-09-26 7:17 ` Li Wang
2021-09-26 7:40 ` Li Wang
2021-09-26 7:39 ` Li Wang
2021-09-27 1:37 ` Ralph Siemsen
2021-09-24 6:49 ` Li Wang
2021-09-24 9:33 ` Cyril Hrubis
2021-09-23 6:39 ` Li Wang
2021-09-23 13:10 ` Cyril Hrubis
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