[Qemu-devel] Qemu linux user mode and multi thread

[Eduardo Cruz]

I get the following error message when running an OpenMP hello world
application:

address@hidden:~/qemu/qemu-0.12.4$
./x86_64-linux-user/qemu-x86_64 ../a.out
ERROR: ioctl(SNDCTL_DSP_MAPINBUF): target=0x80085013 host=0x80105013
ERROR: ioctl(SNDCTL_DSP_MAPOUTBUF): target=0x80085014 host=0x80105014
qemu: Unsupported syscall: 202
qemu: Unsupported syscall: 204
qemu: 0x004246c5: unhandled CPU exception 0x8 - aborting
qemu: uncaught target signal 6 (Aborted) - core dumped
Abortado

does qemu linux user mode support multithreaded applications?
thanks in advance

ps:

Host: x86-64
Guest: x86-64

Code tested:
#include <stdio.h>
#include <omp.h>
int main()
{
#pragma omp parallel
{
printf("ola thread %i\n", omp_get_thread_num());
}
return 0;
}
--
Eduardo Henrique Molina da Cruz
MSc student
Parallel and Distributed Processing Group
Federal University of Rio Grande do Sul
Brazil

"Imagination is more important than knowledge." (Albert Einstein)