Re: [uml-devel] UML kernel panic

["roland" <for_spam@gmx.de>]

hi!
installed j2eesdk-1_4-linux.bin

no problem here!

uml:
kernel: linux-2.6.4-uml2641-pomng20040311-gcc333-fixed-coredump
(from http://www.stearns.org/uml/)
rootfs: suse9

host:
suse9 + skas

regards
roland


----- Original Message ----- 
From: "Frank Sorenson" <frank@tuxrocks.com>
To: <user-mode-linux-devel@lists.sourceforge.net>
Sent: Monday, May 03, 2004 7:02 PM
Subject: Re: [uml-devel] UML kernel panic


> On Mon, 3 May 2004, Henrik Nordstrom wrote:
> > On Mon, 3 May 2004, Frank Sorenson wrote:
> > 
> > > The panics are "Segfault with no mm"
> > > 
> > > gdb backtraces can be found here:
> > > http://sco.tuxrocks.com/uml/trace6.txt
> > > http://sco.tuxrocks.com/uml/trace7.txt
> > 
> > Unfortunately both of these traces are incomplete and only shows what 
> > happened after the segfault, not where the segfault occurred.
> > 
> > But it does look like a UML problem. The reason to panic is a segfault 
> > while trying to resolve a VM page fault. But it would be interesting to 
> > know what/where triggered the first page fault.
> 
> I believe I know why the traces didn't have more information.  Reminder to
> trace the binary, not a symlink pointing to it.
> 
> This time, I got a different panic while doing the same thing as before:
> Kernel panic: Kernel mode fault at addr 0xfffe0012, ip 0x40000c20
> 
> A trace is at http://sco.tuxrocks.com/uml/trace10.txt 
> (http://sco.tuxrocks.com/uml/trace9.txt may also be helpful).
> 
> The kernel panics occur while running the j2eesdk installer, and happen at 
> the same point each time:
> [root@uml12 tmp]# ./j2eesdk-1_4-linux.bin -console
> Checking available disk space...
> Checking Java(TM) 2 Runtime Environment...
> Extracting Java(TM) 2 Runtime Environment files...
> Extracting installation files...
> Launching Java(TM) 2 Runtime Environment...
> Kernel panic: Kernel mode fault at addr 0xfffe0012, ip 0x40000c20
> 
> The odd thing is that often (not always), the system appears to hang after
> "Launching Java(TM) 2 Runtime Environment...", until I ssh into the UML.  
> When I hit enter after typing the root password, the panic occurs.  The 
> rest of the time, ssh works just fine.
> 
> Thanks for the help,
> 
> Frank
> ---------------------------------------------------------------------------
> Frank Sorenson - KD7TZK
> Systems Manager, Computer Science Department
> Brigham Young University
> frank@tuxrocks.com
> 
> 
> 
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