Got "Illegal instruction (core dumped)" error msg on Koding VM

[Leeds Huang]

hi all,

I install julia 0.2.0 on my Koding.com VM (running ubuntu 13.04). After typing "julia" and press enter, I got the error message "Illegal instruction (core dumped)".

Is there anything wrong?

Sorry for my poor English.

regards

[Viral Shah]

Did you install julia from source?

-viral

[Leeds Huang]

Nope, I installed julia by "apt-get"

[Viral Shah]

This could be the same AVX instruction issue we have seen on other VMs. Does your VM support AVX instructions?

-viral

[Elliot Saba]

Also, what version of `llvm` do you have installed?

[Leeds Huang]

I am not sure, i just sent them a mail and waiting for the response.

[Leeds Huang]

I did not install any LLVM. Do I need to? I just follow the "Beta installation instructions" on the julialang.org (http://julialang.org/downloads/)

[Kevin Squire]

Hi Leeds,

Since Julia depends on llvm, presumably apt-get would have installed it for you.

What version does `dpkg -l llvm` show?

Kevin

[Leeds Huang]

It just showed me "dpkg-query: no packages found matching llvm".

[Elliot Saba]

The llvm packages usually have their version encoded in their name.  Try this:

`dpkg -l | grep llvm`

This should show packages such as llvm-3.2 or llvm-3.3 installed.  If you have 3.2 installed, try uninstalling it and installing 3.3.  (Via `apt-get install llvm-3.3`)

-E

[Viral Shah]

Elliot, should we put the dependency for llvm as >=3.3?

-viral

[Elliot Saba]

Yes, I was just updating the debian build script to do so.

Is the llvm runtime linked into Julia statically?  I'm doubting my sanity here, but I just realized that llvm is a build-only dependency of Julia on Ubuntu, and I have an ubuntu box with a functional Julia and no llvm packages in sight.

-E

[Viral Shah]

Yes - it does get linked statically. However, Sebastien says he prefers it to be dynamically linked. When he tried that in the past, we had strange errors (captured in some issue).

-viral

[Leeds Huang]

Thanks for the info, but I still failed to run julia.

Yup `dpkg -l | grep llvm` showed me llvm-3.2 installed, but I don't know how to uninstall it. `sudo apt-get remove llvm-3.2` showed me package llvm-3.2 not installed, so I simply try `sudo apt-get install llvm-3.3`.

Then `dpkg -l | grep llvm` show me these (also the 1st line exists before I install llvm-3.3):

ii  libllvm3.2:amd64                          3.2-2ubuntu5                        amd64        Low-Level Virtual Machine (LLVM), runtime library                                                      

ii  libllvm3.3:amd64                          1:3.3-3~raring1                     amd64        Low-Level Virtual Machine (LLVM), runtime library                                                      

ii  llvm-3.3                                  1:3.3-3~raring1                     amd64        Low-Level Virtual Machine (LLVM)                                                                       

ii  llvm-3.3-dev                              1:3.3-3~raring1                     amd64        Low-Level Virtual Machine (LLVM), libraries and headers                                                

ii  llvm-3.3-runtime                          1:3.3-3~raring1                     amd64        Low-Level Virtual Machine (LLVM), bytecode interpreter   

To Viral Shah: I tried `cat /proc/cpuinfo`, I got these:

processor       : 7

vendor_id       : GenuineIntel

cpu family      : 6

model           : 15

model name      : Intel(R) Core(TM)2 Duo CPU     T7700  @ 2.40GHz

stepping        : 11

microcode       : 0x1

cpu MHz         : 2299.998

cache size      : 4096 KB

fpu             : yes

fpu_exception   : yes

cpuid level     : 10

wp              : yes

flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl pni pclmulqdq ssse3 cx1

6 sse4_1 sse4_2 x2apic popcnt aes avx hypervisor lahf_lm

bogomips        : 4599.99

clflush size    : 64

cache_alignment : 64

address sizes   : 40 bits physical, 48 bits virtual

power management:

Seems like it support AVX?

[Kevin Squire]

You might try removing libllvm3.2 as well.

Kevin

[Elliot Saba]

Removing these packages won't affect it, since the binary distribution is statically linked.  I'm sorry, but you will have to wait until Canonical's servers get around to compiling the latest nightly build, which should have llvm 3.3 statically linked inside of them, and should work properly on your machine.  This shouldn't take more than 24 hours.

-E

[Leeds Huang]

Ok thanks, I will wait! Thank you all you guys!

[Leeds Huang]

Yes, it works now after I installed julia again, thanks!

[Elliot Saba]

Excellent!  Thank you for letting us know!