[Vm-dev] FileHandleTest>>#testTruncate Pharo test case for FilePlugin/ CogVM on 64bit linux

[Markus Fritsche]

Hello Alistair,

interesting - below is a summary of my installation. I had this issue
way back when (vm-beginners, 04/09/2014) with a complete different
software setup (last time I've checked I didn't register as a bogon
source on the meter, in fact, I take pride in being a clueon source at
work).

mfritsche at hawking:~/Pharo$ uname -a
Linux hawking 4.15.0-23-generic #25-Ubuntu SMP Wed May 23 18:02:16 UTC
2018 x86_64 x86_64 x86_64 GNU/Linux

mfritsche at hawking:~/Pharo$ cat /proc/cpuinfo | head -n 5
processor    : 0
vendor_id    : GenuineIntel
cpu family    : 6
model        : 60
model name    : Intel(R) Core(TM) i7-4720HQ CPU @ 2.60GHz

mfritsche at hawking:~/Pharo$ ./pharo --version
5.0-201805090836  Wed May  9 08:54:40 UTC 2018 gcc 4.8 [Production Spur
64-bit VM]
CoInterpreter VMMaker.oscog-eem.2380 uuid:
c76d37e1-445c-4e34-9796-fc836dfd50c9 May  9 2018
StackToRegisterMappingCogit VMMaker.oscog-eem.2380 uuid:
c76d37e1-445c-4e34-9796-fc836dfd50c9 May  9 2018
VM: 201805090836 https://github.com/OpenSmalltalk/opensmalltalk-vm.git
Date: Wed May 9 10:36:12 2018 CommitHash: 334be97
Plugins: 201805090836 https://github.com/OpenSmalltalk/opensmalltalk-vm.git
Linux travis-job-5ab63a26-b2a8-4841-93ff-7aa5dc4e571e 4.4.0-101-generic
#124~14.04.1-Ubuntu SMP Fri Nov 10 19:05:36 UTC 2017 x86_64 x86_64
x86_64 GNU/Linux
plugin path: /home/mfritsche/Pharo/pharo-vm/lib/pharo/5.0-201805090836
[default: /home/mfritsche/Pharo/pharo-vm/lib/pharo/5.0-201805090836/]

mfritsche at hawking:~/Pharo$ ls -alh /lib/x86_64-linux-gnu/libc-2.27.so
-rwxr-xr-x 1 root root 2,0M Apr 16 22:14 /lib/x86_64-linux-gnu/libc-2.27.so


On 02.07.2018 11:57, Alistair Grant wrote:
>  
>
>
> Hi Markus,
>
> It looks like it is something else then. I'm away from my PC now, but
> running the tests in a tmpfs ram disk have worked in the past.  I'm
> using SSDs.  I'll check again when I have access.
>
> Cheers,
> Alistair
> (on phone, thus the short reply)
>
> On Mon., 2 Jul. 2018, 09:56 Markus Fritsche, <mfritsche at reauktion.de
> <mailto:mfritsche at reauktion.de>> wrote:
>
>      
>     Hi Alistair,
>
>     I created a file-based ext4fs in my ram-based /tmp/ and executed the
>     FileHandleTest starting the image out of that file system - the test
>     still fails.
>
>     Are you having your file system on rotating rust or in
>     electron-arresting transistors (like me)?
>
>
>     Best regards,
>
>       Markus
>
>
>     On 02.07.2018 09:26, Alistair Grant wrote:
>     > 
>     > Hi Markus,
>     >
>     > The test passes in my Pharo 7 64 bit image with Ubuntu 16.04 on ZFS.
>     >
>     > Are you able to test on a file system other than btrfs?  Or anything
>     > else that might be different in your environment?
>     >
>     > P.S.  I'm not saying that FilePlugin shouldn't be changed, I haven't
>     > looked at it, but it would be nice to reproduce the issue first.
>     >
>     > Thanks,
>     > Alistair
>

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