linux-kernel - Re: [PATCH 2/2] proc: test /proc/self/syscall

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Date:   Tue, 15 May 2018 00:34:18 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Alexey Dobriyan <adobriyan@...il.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] proc: test /proc/self/syscall

Hi Alexey,

On 27 February 2018 at 02:51, Alexey Dobriyan <adobriyan@...il.com> wrote:
> Read from /proc/self/syscall should yield read system call and correct
> args in the output as current is reading /proc/self/syscall.

Is this test expected to work on arm32 bit architecture ?
I have tested on arm32 devices and it returns 1 and reported as FAIL.

Strace output:
<snip>
munmap(0xb6f4a000, 13514)               = 0
open("/proc/self/syscall", O_RDONLY)    = 3
read(3, "3 0x3 0xbeacfbe0 0x40 0x3 0xbeac"..., 64) = 64
exit_group(0)                           = ?
+++ exited with 0 +++

Ref:
selftests: proc-self-syscall failed on arm32
https://bugs.linaro.org/show_bug.cgi?id=3783