Antoine Martin wrote: >>>> I have downgraded the x86 boxes to 2.6.15.7 and these are up and >>>> running again. But I can't do that for all of them, and this is just >>>> not an option for some of the amd64 boxes. >>> >>> My setup is: >> Thanks for that. That is very similar to mine. >> I don't think this has anything to do with the guest... So I'll try to >> remove the skas3 patch from the host and see how it goes. >> > I did, and no improvement... x86 guests still hang. > Could you post a binary guest kernel somewhere so I can try that? > (even if it isn't static - glibc should be similar since we're using > Gentoo amd64) > If that still does not work then I can be certain that it is something > to do with the host. I've just tried on 3 more hosts, all AMD64 Gentoo fully up to date, kernel 2.6.19.2. No skas, no exec shield, no selinux, plain kernel.org: None of them work with any of the 32-bit kernels! It prints nothing, just sits there spinning at 100% cpu. So I am now totally convinced that i haven't got a weird setup. Something else is broken in UML.
On fully up to date Fedora Core 6 x86_64, the kernel does display something before crashing: # uname -a Linux localhost.localdomain 2.6.18-1.2869.fc6 #1 SMP Wed Dec 20 14:51:34 EST 2006 x86_64 x86_64 x86_64 GNU/Linux # ./kernel32-2.6.19.2 Checking that ptrace can change system call numbers...OK Checking syscall emulation patch for ptrace...missing Checking for tmpfs mount on /dev/shm...OK Checking PROT_EXEC mmap in /dev/shm/...OK Checking for the skas3 patch in the host: - /proc/mm...not found - PTRACE_FAULTINFO...not found - PTRACE_LDT...not found UML running in SKAS0 mode [EMAIL PROTECTED] home]# This is 100% repeatable. Plain Fedora. Many users will have a similar setup and will just give up on UML. So I as I said before, UML is currently unusable for most people out there running fairly recent systems. Antoine ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
