[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] modify_ldt errors on x86_64
On Monday 14 November 2005 5:59 pm, Nakajima, Jun wrote: > Karl Rister wrote: > > On Saturday 12 November 2005 7:06 am, Ian Pratt wrote: > >>> I am trying to run some Java tests in a dom0 running on > >>> x86_64 and I am receiving the following error message: > >>> > >>> setupLdt: modify_ldt: Invalid argument > >>> > >>> After 2 of these the JVM just hangs and I have to kill it. > >>> This does not happen when booting the systerm without Xen. I > >>> have tried several different changesets from the past few > >>> days and have seen the same thing on all of them. My current > >>> changeset is 7746. Has anyone else seen this? > >> > >> No, this is the first report. > >> > >> Which version of Java are you using. Have you a simple test case? > > > > "java -version" returns the following on baremetal Linux, this simple > > test is enough to cause the problem in domain0 > > > > java version "1.4.2" > > Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2) > > Classic VM (build 1.4.2, J2RE 1.4.2 IBM build cxia32142sr1a-20050209 > > (JIT enabled: jitc)) > > I tested "java -version" on x86_64 xenlinux, and got: > > java version "1.4.2-02" > Java(TM) 2 Runtime Environment, Standard Edition (build > Blackdown-1.4.2-02) > Java HotSpot(TM) 64-Bit Server VM (build Blackdown-1.4.2-02, mixed mode) > > I downloaded it from ftp.tux.org. I tried both the 32bit and 64bit Blackdown JVMs as well as a 64bit IBM JVM and they do not exhibit this problem. It seems to be specific to the 32bit IBM JVM. I think that I am going to file this as a bug since Xen should not be affecting a userspace app in this manner. I should also add that in some instances (mostly on a uniprocessor dom0) this error renders the box dead and it has to be rebooted through the service processor. > > > An strace on the java process shows these two messages being dumped > > over and over again in a loop: > > > > rt_sigprocmask(SIG_UNBLOCK, [ILL TRAP BUS FPE SEGV], ~[KILL USR2 STOP > > RTMIN RT_1], 8) = 0 > > --- SIGSEGV (Segmentation fault) @ 0 (0) --- > > Jun > --- > Intel Open Source Technology Center > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel -- Karl Rister _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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