qemu: freebsd6_mmap -1 errno 12 Cannot allocate memory

[Boris Samorodov]

On Fri, 7 Dec 2007 22:48:52 +0700 Eugene Grosbein wrote:

> There is FreeBSD box that was 6.2-STABLE before, now it became
> 7.0-BETA3 via source upgrade. The kernel has 'options COMPAT_FREEBSD6'

How did you upgrade the OS? Did you use "make delete-old-libs"?
Did you install compat-6x?

> compiled in. However, qemu-0.8.2s.20061225_1 stopped to work,

Seems to be a rather old qemu version...

> it dumps core when started with an error:

> Fatal error 'Cannot allocate red zone for initial thread' at line 384 in
> file /usr/local/obj/src/lib/libthr/thread/thr_init.c (errno = 12)

> ktrace shows that freebsd6_mmap() syscall fails:

>  22114 qemu     CALL freebsd6_mmap(0xbf9ff000,0x1000,PROT_NONE,MAP_ANON,0xffffffff,0,0,0)
>  22114 qemu     RET  freebsd6_mmap -1 errno 12 Cannot allocate memory

> Is it a bug in kernel's COMPAT_FREEBSD6 feature?

> Rebuilding of qemu requires downloading and building of gcc-3.4
> that's what I would avoid to do. 


WBR
-- 
Boris Samorodov (bsam)
Research Engineer, http://www.ipt.ru Telephone & Internet SP
FreeBSD committer, http://www.FreeBSD.org The Power To Serve