From: ebiederm@xmission.com (Eric W. Biederman)
To: Andy Johnson <johnsonzjo@gmail.com>
Cc: util-linux@vger.kernel.org
Subject: Re: Cannot allocate memory when calling unshare
Date: Thu, 09 May 2013 23:41:56 -0700 [thread overview]
Message-ID: <87ip2rz68b.fsf@xmission.com> (raw)
In-Reply-To: <CAF0Lin2XM9kSzjDyLJS19zV-M9PdAS55hH3jwDT3ph4F7mSYLg@mail.gmail.com> (Andy Johnson's message of "Fri, 10 May 2013 09:07:51 +0300")
Andy Johnson <johnsonzjo@gmail.com> writes:
> Thanks.
> Copy ans paste of that line:
> unshare --pid -- /bin/sh -c /bin/bash
>
> still gave:
> ./unshare --pid -- /bin/sh -c /bin/bash
> bash: fork: Cannot allocate memory
>
> also tried to tweak a bit and it did not help
> I am using latest git linux-util on fedora 18 with
> 3.8.4-202.fc18.x86_64 kernel
How weird. It works here.
My hunch would be that my /bin/sh is dash, and fedora likes to use bash.
It looks like your /bin/sh is exec'ing /bin/bash instead of forking and
execing it. You can look in another window and confirm that you don't
have two processes doing the work only one.
When it works echo $$ returns 1.
Shrug.
Eric
prev parent reply other threads:[~2013-05-10 6:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-07 5:03 Cannot allocate memory when calling unshare Andy Johnson
2013-05-09 18:26 ` Eric W. Biederman
2013-05-10 6:07 ` Andy Johnson
2013-05-10 6:41 ` Eric W. Biederman [this message]
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