Hi,
thanks for that, it should help figure out which release/patch caused
the problem.
Could you try the same test using plain kernel.org kernels?
(2.6.17 and 2.6.18 for a start)
That should tell us if it is was a redhat patch that introduced the problem.
Antoine
JuanJo Ciarlante wrote:
> Hi!
> Since 2.6.18 FC5 kernels updates and _all_ FC6 kernels, my uml-2.6.17
> fails with same problem reported before @this list: stops responding
> after "VFS: Mounted root (ext3 filesystem) readonly."
>
> I tracked back and narrowed the kernel versions where the problem
> started to show:
> OK: kernel-smp-2.6.17-1.2187_FC5 (last FC5 upd. kernel known to run ok)
> BAD: kernel-smp-2.6.18-1.2239.fc5 (IIRC 1st non-working FC5 kernel)
> BAD: kernel-2.6.19-1.2895.fc6 (current FC6 kernel)
>
> Note: this is a FC6 uptodate distro, booted with these 3 diff.
> kernels.
> FYI those FC5 kernels have same selinux policyversion , so FC6
> "environment" runs ok, I suggest to those wanting to run UML on FC6
> to try booting with kernel-smp-2.6.17-1.2187_FC5 as a workaround.
>
> To see at least if the command gets "enough" CPU to halt the UML, I tried:
> ./linux init=/sbin/halt -f
>
> It didn't, "ps lx" on the host shows:
> $ ps lx
> 0 240 4284 4152 15 0 33000 11000 - R+ pts/1 3:31 ./linux
> (Jj9kkn) [/sbin/halt]
> 1 240 4293 4284 25 0 33000 11000 - S+ pts/1 0:00 ./linux
> (Jj9kkn) [/sbin/halt]
> 1 240 4294 4284 24 0 33000 11000 - S+ pts/1 0:00 ./linux
> (Jj9kkn) [/sbin/halt]
> 1 240 4295 4284 15 0 33000 11000 - S+ pts/1 0:00 ./linux
> (Jj9kkn) [/sbin/halt]
> 1 240 4296 4284 15 0 60 56 - R+ pts/1 2:42 [linux]
> , where cpu time for those "R+" procs almost equals wall time;
>
> strace'ing repeats eternally these lines:
> $ strace -p 4284
> -- SIGCHLD (Child exited) @ 0 (0) ---
> waitpid(4296, [{WIFSTOPPED(s) && WSTOPSIG(s) == SIGSEGV}], WSTOPPED) = 4296
> ptrace(PTRACE_GETREGS, 4296, 0, 0xa06ab82c) = 0
> ptrace(PTRACE_GETFPXREGS, 4296, 0, 0xa06ab8dc) = 0
> ptrace(PTRACE_CONT, 4296, 0, SIGSEGV) = 0
> :
> :
>
> Hope this reports helps to put light on this UML/FC6 bug.
>
> Regards!
>
-------------------------------------------------------------------------
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
[email protected]
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
