Invalid memory access of location on OS X?

[Sean Owen]

Hello all, I've just gotten jblas working nicely on my OS X 10.7 machine -- really my application is just computing a matrix inverse with Solve.pinv(). It works at small scale.

But when I run at larger scale, I get a consistent core dump. On java 6 (update 45) the message is simply like "Invalid memory access of location 0x7f829a8228d0 rip=0x7fff93c2ae26"

On Java 7 (update 21) I get a nice big SIGSEGV. I can provide the whole hs_err_pid log file; the key stack trace seems to be

Stack: [0x000000010bda4000,0x000000010bea4000],  sp=0x000000010bea32b0,  free space=1020k

Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)

C  [libsystem_c.dylib+0x27e03]  memmove$VARIANT$sse42+0x146

C  [jblas2824452995535255166libjblas.dylib+0x148129]  ilaenv_+0xe3

C  [jblas2824452995535255166libjblas.dylib+0x1af96]  Java_org_jblas_NativeBlas_ilaenv+0x106

...

I'm not sure if this points to something I'm doing wrong -- but it is working in some cases. This is with the latest jblas 1.2.3.

[mikiobraun]

Hi Sean,

sounds odd. Can you attach some example code? Then I'll have a look.

Best,

-Mikio

[mikiobraun]

Hi Sean,

I did a quick fix. I think something was wrong with the sizes of the working arrays.

I tried it run with random matrices for two hours now, everything seems to be ok.

If you have the time, give it a try and tell me whether it works or not, that'll be great!

-M