From: Steve Muckle <smuckle.linux@gmail.com>
To: ltp@lists.linux.it
Subject: [LTP] [PATCH] syscalls/kcmp03: work around bug in C library
Date: Thu, 7 Sep 2017 10:42:10 -0700 [thread overview]
Message-ID: <c378bb66-f40e-42e2-1586-1b5c445a33dc@gmail.com> (raw)
In-Reply-To: <20170906100923.GA23287@rei.lan>
On 09/06/2017 03:09 AM, Cyril Hrubis wrote:
> Hi!
>> Some versions of glibc and bionic report the same PID for parent
>> and child when clone() is called with CLONE_VM but not
>> CLONE_THREAD.
>
> Is that the result of the infamous pid caching?
In bionic yes, I can't say for sure in glibc but I'd assume so. I
haven't tested a glibc version that had pid caching removed.
> Can we fix that by using the raw getpid() syscall in the test
> library? If so I guess that using raw syscall in the test library may
> be a safer bet.
Probably. I'll try it.
thanks,
Steve
prev parent reply other threads:[~2017-09-07 17:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-05 20:40 [LTP] [PATCH] syscalls/kcmp03: work around bug in C library Steve Muckle
2017-09-06 10:09 ` Cyril Hrubis
2017-09-07 17:42 ` Steve Muckle [this message]
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