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From: | Jonny Grant |
Subject: | bug#28082: bash: /bin/rm: Argument list too long |
Date: | Wed, 6 Sep 2017 15:54:10 +0300 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 |
On 15/08/17 12:45, Dmitry V. Levin wrote:
On Tue, Aug 15, 2017 at 08:19:13AM +0100, Jonny Grant wrote:On 15/08/17 00:50, Paul Eggert wrote:Jonny Grant wrote:do you know which kernel API has this limitation?All kernels have a limitation there to some extent, except perhaps the Hurd. Sorry, I don't know what the limits are.Ok thank you. I imagine kernels just need a dynamic API, so it doesn't need to be a fixed buffer.It's a security limit rather than a fixed buffer, see e.g. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=da029c11e6b12f321f36dac8771e833b65cec962
Thank you for your reply. My Ubuntu 16.04 limit is 2MB it seems: $ getconf ARG_MAX 2097152This laptop has 16GB RAM, so it is a shame it isn't much bigger, or dynamic so can be expanded when needed somehow. Those mapped pages of RAM wouldn't be wasted, as just VM right?
I imagine a lot of people may have 60,000 files in a directory like me these days. Latest Linux kernel just added support for billions of files per directory I read.
Regards, Jonny
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