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[Xen-bugs] [Bug 543] domU: BUG: soft lockup detected on CPU#1!

To: xen-bugs@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-bugs] [Bug 543] domU: BUG: soft lockup detected on CPU#1!
From: bugzilla-daemon@xxxxxxxxxxxxxxxxxxx
Date: Fri, 17 Mar 2006 08:05:52 +0000
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joose.vettenranta@xxxxxxxxxxxxxxxxx changed:

           What    |Removed                     |Added
                 CC|                            |joose.vettenranta@intertechn
                   |                            |ika.com

------- Additional Comments From joose.vettenranta@xxxxxxxxxxxxxxxxx  
2006-03-17 08:05 -------
Little bit more information...

PAE is not enabled.

"Same happening with 2.6.15-1.2054_FC5xenU and 2.6.15-1.1955_FC5guest"
xenU == guest
dom0 == host

domU has one cpu in use, but when using 2, same happens..

Server is HS20 8843 and it has 2 HT enabled xeon in it.

[root@dom0 ~]# xm info
system                 : Linux
host                   : dom0
release                : 2.6.15-1.1955_FC5hypervisor
version                : #1 SMP Wed Feb 15 16:21:02 EST 2006
machine                : i686
nr_cpus                : 4
nr_nodes               : 1
sockets_per_node       : 2
cores_per_socket       : 1
threads_per_core       : 2
cpu_mhz                : 3200
hw_caps                : bfebfbff:20000000:00000000:00000080:0000641d
total_memory           : 2048
free_memory            : 861
xen_major              : 3
xen_minor              : 0
xen_extra              : .0
xen_caps               : xen-3.0-x86_32
platform_params        : virt_start=0xfc000000
xen_changeset          : unavailable 
cc_compiler            : gcc version 4.1.0 20060214 (Red Hat 4.1.0-0.27)
cc_compile_by          : bhcompile
cc_compile_domain      : build.redhat.com
cc_compile_date        : Wed Feb 15 15:42:43 EST 2006

And when trying 2.6.15-1.1955_FC5guest I've been using same dom0 (host) -kernel 
and corresponding 
xen-build (from fc4.92) and same from fc-rawhide.

# /usr/local/IBMJava2-141/bin/java
Usage: java [-options] class [args...]
           (to execute a class)
   or  java -jar [-options] jarfile [args...]
           (to execute a jar file)

where options include:
    -cp -classpath <directories and zip/jar files separated by :>
              set search path for application classes and resources
              set a system property
              enable verbose output
    -version  print product version
    -showversion  print product version and continue
    -? -help  print this help message
BUG: soft lockup detected on CPU#0!

Pid: 676, comm:                 java
EIP: 0061:[<c0264508>] CPU: 0
EIP is at general_protection+0x0/0xc
 EFLAGS: 00000246    Not tainted  (2.6.15-1.1955_FC5guest)
EAX: 00000000 EBX: 283d0fd0 ECX: 00000000 EDX: 00000000
ESI: 00000000 EDI: 0160b000 EBP: 00000000 DS: 007b ES: 007b
CR0: 80050033 CR2: b62512c4 CR3: 1e7fe000 CR4: 00000600
 [<c0107cce>] failsafe_callback+0x2/0x24
 [<c0111eca>] write_ldt_entry+0xb2/0xb9
 [<c010b3f8>] write_ldt+0x187/0x1a9
 [<c0107a75>] syscall_call+0x7/0xb

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