--- Blaisorblade <[EMAIL PROTECTED]> wrote: > On Sunday 06 August 2006 12:41, Richard Andrews wrote: > > --- Jeff Dike <[EMAIL PROTECTED]> wrote: > > > What was the boot output? > > > > Verbatim terminal output > > > > $ ./kernel32-2.6.17.7 mem=64M > > Checking that ptrace can change system call numbers...OK > > Checking syscall emulation patch for ptrace...OK > > Checking advanced syscall emulation patch for ptrace...OK > > 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 > > Adding 31916032 bytes to physical memory to account for exec-shield gap > > Try disabling exec-shield on the host (via /proc/sys/kernel/<something>) and > see if it then works; if it does, we'll debug the problem and try to fix it.
I can verify that it is exec-shield preventing boot. echo '0' > /proc/sys/kernel/exec-shield The UML kernel is now booting... OK, logged in as root! W00t! Thanks very much for the pointer. Now I guess you have a buffer overrun to track down. :-/ If you need to reproduce the problem I am running (as host) kernel-smp-2.6.17-1.2142_FC4 on a an Intel P4 Prescott. The FC4 install was a "typical" install with bits added. Last yum update was about May 2006, except kernel. The kernel config file used for the UML build can be found on the nagafix site. I have a copy if required. $ md5sum kernel32-2.6.17.7.config cf34c45fd8de7bf79d97c72e0468ebc3 kernel32-2.6.17.7.config -- Rich Send instant messages to your online friends http://au.messenger.yahoo.com ------------------------------------------------------------------------- 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-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
