From: Petr Vorel <pvorel@suse.cz>
To: Wenjie Xu <xuwenjie04@baidu.com>
Cc: ltp@lists.linux.it
Subject: Re: [LTP] [PATCH] pipe/pipe15.c: Adjust fd check for pipe creation
Date: Wed, 6 Mar 2024 13:46:38 +0100 [thread overview]
Message-ID: <20240306124638.GB746976@pevik> (raw)
In-Reply-To: <20240305072014.55145-1-xuwenjie04@baidu.com>
> > HI Wenjie, Marius,
> > > A pipe occupies 2 fds, and considering 3 standard fds,
> > > we should compare rlim_max with such *2+3 calculated value
> > > to verify whether the maximum file descriptor configuration
> > > of the current machine is sufficient.
> > Indeed, 1024*2+3 is the lowest number which passes with non-default ulimit:
> > ulimit -n $((1024*2+3)) && ./pipe15
> > Therefore I merged, thank you!
> > BTW I wonder how did you encounter this?
> In my test case, the system ulimit is set to 10240,
> and the calculated pipe_count is also 10240, causing
> the EMFILE failure when creating the pipe below.
+1, thanks for info.
Is it some embedded distro or a regular widely used distro?
I'm just curious what kernels are tested by LTP and whether where the
non-default setup comes from.
Kind regards,
Petr
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Mailing list info: https://lists.linux.it/listinfo/ltp
next prev parent reply other threads:[~2024-03-06 12:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-01 2:12 [LTP] [PATCH] pipe/pipe15.c: Adjust fd check for pipe creation xuwenjie04 via ltp
2024-03-01 12:41 ` Petr Vorel
2024-03-05 7:20 ` Wenjie Xu via ltp
2024-03-06 12:46 ` Petr Vorel [this message]
2024-03-07 2:55 ` Wenjie Xu via ltp
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