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digitalmars.D.bugs - [Issue 11313] New: std.process.ProcessException: Not an executable file on running unittests when /tmp is mounted noexec

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           Summary: std.process.ProcessException: Not an executable file
                    on running unittests when /tmp is mounted noexec
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody puremagic.com
        ReportedBy: ibuclaw ubuntu.com


--- Comment #0 from Iain Buclaw <ibuclaw ubuntu.com> 2013-10-21 04:45:40 PDT ---
As per summary, to reproduce run (assumes you have a line in /etc/fstab for
/tmp):

mount -o remount,noexec /tmp


Then run the phobos unittests.


Unittests should *really* be creating the temp file on the same filesystem as
where you are running ./unittest from for phobos.

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Iain Buclaw <ibuclaw ubuntu.com> changed:

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                 CC|                            |ibuclaw ubuntu.com


--- Comment #1 from Iain Buclaw <ibuclaw ubuntu.com> 2013-10-21 04:46:38 PDT ---
s/ the temp file / any temp file /

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Vladimir Panteleev <thecybershadow gmail.com> changed:

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--- Comment #2 from Vladimir Panteleev <thecybershadow gmail.com> 2013-10-21
14:59:54 EEST ---
Possibly unrelated, but wouldn't a noexec /tmp completely break rdmd?

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David Nadlinger <code klickverbot.at> changed:

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--- Comment #3 from David Nadlinger <code klickverbot.at> 2013-10-21 05:05:34
PDT ---
Yes, it would also break RDMD.

Frankly, I don't think it is worth making active efforts to support such
non-standard configurations. And if I remember correctly, having a noexec /tmp
also breaks the installation scripts of random packages, so it's not like you
could expect it to work without problems in other situations.

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--- Comment #4 from Iain Buclaw <ibuclaw ubuntu.com> 2013-10-21 05:20:35 PDT ---
/tmp as noexec is a standard in general workplace environments.

The only packages that break because of noexec are typically third party
packages or .bin installers, and is not the norm for packages through your
standard distribution.

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Alex Rønne Petersen <alex lycus.org> changed:

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--- Comment #5 from Alex Rønne Petersen <alex lycus.org> 2013-10-21 14:23:49
CEST ---
Ubuntu:

tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)

Debian:

tmpfs on /run/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=718340k)

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--- Comment #6 from David Nadlinger <code klickverbot.at> 2013-10-21 05:35:43
PDT ---
(In reply to comment #5)
 Ubuntu:
 
 tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
 
 Debian:
 
 tmpfs on /run/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=718340k)
That's only /run resp. /run/shm, not /tmp. I actually checked the last couple of official Ubuntu EC2 images, none of them mounts /tmp noexec by default. And neither do the Debian instances on two of my boxes. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
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--- Comment #7 from David Nadlinger <code klickverbot.at> 2013-10-21 05:40:05
PDT ---
(In reply to comment #4)
 /tmp as noexec is a standard in general workplace environments.
It might be common in hardened server environments, but I'd argue that's not where people usually do software development, or at least where they are supposed to. ;) -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
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--- Comment #8 from Vladimir Panteleev <thecybershadow gmail.com> 2013-10-21
15:48:46 EEST ---
Would setting the TMP environment variable qualify as a workaround? Looking at
the implementation of tempDir (which is used in uniqueTempPath, used by
std.process), that would work.

rdmd doesn't use tempDir, which is probably a bug.

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--- Comment #9 from Iain Buclaw <ibuclaw ubuntu.com> 2013-10-21 06:14:43 PDT ---
(In reply to comment #6)
 (In reply to comment #5)
 Ubuntu:
 
 tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
 
 Debian:
 
 tmpfs on /run/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=718340k)
That's only /run resp. /run/shm, not /tmp. I actually checked the last couple of official Ubuntu EC2 images, none of them mounts /tmp noexec by default. And neither do the Debian instances on two of my boxes.
David has bots and rootkits running on his systems. :o) -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
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