Date: Tue, 3 Apr 2007 10:47:18 -0700 (PDT) From: Doug Ambrisko <ambrisko@ambrisko.com> To: Daniel Eischen <deischen@freebsd.org> Cc: freebsd-hackers@freebsd.org, Andriy Gapon <avg@icyb.net.ua>, freebsd-arch@freebsd.org Subject: Re: 32/64bit KSE issues? Message-ID: <200704031747.l33HlIpr064054@ambrisko.com> In-Reply-To: <Pine.GSO.4.64.0703311801070.3827@sea.ntplx.net>
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Daniel Eischen writes: | On Sat, 31 Mar 2007, John Baldwin wrote: | > On Saturday 31 March 2007 03:16, Andriy Gapon wrote: | >> on 31/03/2007 05:23 Daniel Eischen said the following: | >>> On Fri, 30 Mar 2007, David E. Cross wrote: | >>> | >>>> I recently ran into a problem where the 32bit JVM won't run on a 64bit host. | >>>> I, and at least one other person in -java thinks it has to do with 32 bit KSE | >>>> on a 64bit kernel (I have a vague memory on this somewheres WAY back). Is | >>>> this still the issue? Could someone point me in the general direction of the | >>>> specifics of the problem (if they exist, if not, I may try to create a | >>>> simpler test case then java)? | >>>> | >>>> I tried a few searches, but nothing matching what I remembered came up. | >>> | >>> No, you can't run 32-bit libpthread on 64-bit kernel. There | >>> are no compatiblity hooks in the kernel to handle 32-bit kse | >>> interfaces. It is really too messy to provide it. | | [ ... ] | | > I plan on making sure full 32-bit compat exists for both libthr and | > libpthread and backporting it to 6.x for work. Very few things are | > too hard to wrap with a 32-bit shim. | | Not according to peter@ ;-) But if you can do it, that'd be | great. I MFC'ed David Xu's libthr to 6.X at work and it's working. libkse will be a lot harder IMHO. David's stuff in -current just works. I routinely run 32bit thread stuff on 64bit hosts using the libmap32.conf trick to switch from kse to libthr. Thanks to David for making it work in -current. Doug A.
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