On Friday 15 September 2006 19:09, Jeff Dike wrote: > On Fri, Sep 15, 2006 at 01:09:15AM +0100, Antoine Martin wrote: > > I thought it might be GCC 4.1, so I tried 2 things: > > * build with gcc 3.4 on another host > > * switch to gcc 3.4 on that system for the kernel build > > The resulting (statically linked) kernel runs fine on x86 but not at all > > on the amd64 hosts: > > (..) > > UML running in SKAS0 mode > > remove_umid_dir - actually_do_remove failed with err = -2 > > Add stderr=1 to the command line and see what happens. > > Also, if a 32-bit binary behaves differently on a 64-bit system than a > 32-bit one, I would say that's a bug in the 32-bit emulation on the > host.
There's at least one detail which works differently, even though it shouldn't be related - TLS support. One constant, i.e. the base value of user_desc->entry_number) changes value from x86 to x86_64 (I had to cope with this when writing TLS support). Most applications (i.e. glibc, but UML can't, so I fighted with this) determine it at runtime, even if nobody warns against specifying it. Verify if dynamic linking helps at all - if something such is involved and the constant is linked in when linking with glibc, this would help. -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade http://www.user-mode-linux.org/~blaisorblade ___________________________________ Yahoo! Mail: gratis 1GB per i messaggi e allegati da 10MB http://mail.yahoo.it ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
