linux-kernel - 3239b6f29b ("KEYS: return full count in keyring_read() if buffer is too small"): ltp.keyctl06.fail

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Date:   Fri, 1 Dec 2017 10:40:12 +0800
From:   Fengguang Wu <fengguang.wu@...el.com>
To:     Eric Biggers <ebiggers@...gle.com>
Cc:     James Morris <james.l.morris@...cle.com>,
        Ben Hutchings <ben@...adent.org.uk>,
        David Howells <dhowells@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>, lkp@...org,
        ltp@...ts.linux.it
Subject: 3239b6f29b ("KEYS: return full count in keyring_read() if buffer is
 too small"): ltp.keyctl06.fail

Hi Eric,

We noticed LTP keyctl06 test regression in

commit: 3239b6f29bdfb4b0a2ba59df995fc9e6f4df7f1f ("KEYS: return full count in keyring_read() if buffer is too small")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

on test machine: 48 threads Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz with 64G memory
with following parameters:

	disk: 1HDD
	fs: ext4
	test: syscalls_part2

test-description: The LTP testsuite contains a collection of tools for testing the Linux kernel and related features.
test-url: http://linux-test-project.github.io/

To reproduce:

         git clone https://github.com/intel/lkp-tests.git
         cd lkp-tests
         bin/lkp install job.yaml  # job file is attached in this email
         bin/lkp run     job.yaml

testcase/path_params/tbox_group/run: ltp/1HDD-ext4-syscalls_part2/ivb44

Thanks,
Fengguang

View attachment "config-4.14.0-rc7-00048-g3239b6f" of type "text/plain" (163335 bytes)

View attachment "job-script" of type "text/plain" (4685 bytes)

View attachment "job.yaml" of type "text/plain" (4038 bytes)

View attachment "reproduce" of type "text/plain" (239 bytes)