Hi Stephen , You answered me what I want to understand . Just to clarify . The other distro treat s390 as 31-bits and s390x as 64-bits and Debian doesn't . My question is : I will be able to run the s390x applications from ISVs based on other s390x linux distro at the Debian 6 running with 390x kernel ? could I say that we have the same Linux from any other s390x distro that we have with s390x Debian ?
thanks in advanced , Saulo Silva 2011/5/12 Stephen Powell <[email protected]> > On Wed, 11 May 2011 14:21:29 -0400 (EDT), Saulo Silva wrote: > > > > I would like to know about the current release of the Debian Linux for Z > . > > And if that is a 64bit linux compile . > > I'm not sure I understand your question. Debian GNU/Linux has had an > s390 port since 3.0 (Woody). Some other Linux distributions treat s390 and > s390x as separate architectures. Debian does not. Debian treats both > ESA/390 > processors and z/Architecture processors as belonging to the s390 > architecture, > or "port". Debian does provide two different flavors of kernel, however. > The s390 flavor runs on either an ESA/390 processor or a z/Architecture > processor. The s390x flavor runs only on a z/Architecture processor. > Older releases of Debian provided only the s390 flavor. For a while, a > single > release of Debian provided both flavors, at the user's choice. I'm not > sure which was the first release that provided the s390x flavor, but I do > know that Lenny (Debian 5.0) was the last release to provide the s390 > flavor. > Starting with Squeeze (Debian 6.0), only s390x kernel flavors are provided. > > The s390x flavor of kernel puts the processor into z/Architecture mode > shortly > after IPL, and the processor stays in z/Architecture mode thereafter. > Debian > does not have a 64-bit user space, however. The kernel (and it's modules) > run in 64-bit mode. But user-space applications currently run in 31-bit > mode. > Thus, a single user-space process is limited to 2G of (virtual) memory. > But the system can make use of more than 2G of real memory, since the > kernel > can allocate (in theory) up to a 2G address space to EACH user-space > process. > > HTH > > -- > .''`. Stephen Powell > : :' : > `. `'` > `- > > > -- > To UNSUBSCRIBE, email to [email protected] > with a subject of "unsubscribe". Trouble? Contact > [email protected] > Archive: > http://lists.debian.org/1158730820.516480.1305170419317.javamail.r...@md01.wow.synacor.com > >
