On 31 Dec 2014 10:15, Benno Schulenberg wrote: > On Wed, Dec 31, 2014, at 09:30, Mike Frysinger wrote: > > On 24 Dec 2014 17:35, Benno Schulenberg wrote: > > > The man page of setarch says for the option --list: "List the architectures > > > that can be set." However... > > > > > > $ ./setarch --list > > > [...] > > > i686 > > > athlon > > > x86_64 > > > ia64 > > > > > > $ ./setarch x86_64 uname -m > > > setarch: x86_64: Unrecognized architecture > > > > > > [...] > > > > > > Maybe --list should not be listing x86_64 and ia64 on this machine? > > > Or maybe the error message in these cases should say "Cannot set > > > the requested architecture" instead? > > > > are you running a 32bit or 64bit kernel ? is your compiled setarch 32bit or > > 64bit ? i'm going to guess both are 32bit. > > You guessed correctly. :) > > $ getconf LONG_BIT > 32 > > $ grep " lm" /proc/cpuinfo || echo no > no > > $ file ./setarch > ./setarch: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0x830fc9635dbe83defa4db7b0b5db241093d4c86d, not stripped > > So... setarch --list shouldn't be mentioning x86_64 nor ia64 here? maybe, but is it really worth the effort ? if you took that exact 32bit binary and booted a 64bit kernel, i imagine it'd work fine. -mike
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