Bug 246790

Description of problem:
System slowdown and dmesg report:
BUG: soft lockup detected on CPU#1!
 [<c0451ea2>] softlockup_tick+0xa5/0xb4
 [<c042e930>] update_process_times+0x3b/0x5e
 [<c043d298>] tick_sched_timer+0x57/0x9a
 [<c0439df5>] hrtimer_interrupt+0x12b/0x1b6
 [<c043d241>] tick_sched_timer+0x0/0x9a
 [<f8baeaf2>] addrconf_verify+0x0/0x274 [ipv6]
 [<c0419c40>] smp_apic_timer_interrupt+0x6f/0x80
 [<c04059bc>] apic_timer_interrupt+0x28/0x30
 [<f8baed55>] addrconf_verify+0x263/0x274 [ipv6]
 [<f8baeaf2>] addrconf_verify+0x0/0x274 [ipv6]
 [<c042dcee>] run_timer_softirq+0x10a/0x17b
 [<f8baeaf2>] addrconf_verify+0x0/0x274 [ipv6]
 [<c042a588>] it_real_fn+0x12/0x16
 [<c042b2e5>] __do_softirq+0x5d/0xba
 [<c04071b7>] do_softirq+0x59/0xb1
 [<c042b1c7>] ksoftirqd+0x0/0xc1
 [<c042b226>] ksoftirqd+0x5f/0xc1
 [<c0436da8>] kthread+0xb0/0xd8
 [<c0436cf8>] kthread+0x0/0xd8
 [<c0405b3f>] kernel_thread_helper+0x7/0x10
 =======================


Version-Release number of selected component (if applicable):
kernel-2.6.21-1.3228.fc7


How reproducible:
One time event

Steps to Reproduce:
1. Run the specified set of kernel and hardware, maybe.
  
Actual results:
System slowdown.

Expected results:
Nothing unusual.

Additional info:
[ivo@sarmax ~]$ cat /proc/cpuinfo 
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 67
model name      : AMD Athlon(tm) 64 X2 Dual Core Processor 5600+
stepping        : 3
cpu MHz         : 2814.157
cache size      : 1024 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext
3dnow pni cx16 lahf_lm cmp_legacy svm extapic cr8legacy ts fid vid ttp tm stc
bogomips        : 5645.24
clflush size    : 64

processor       : 1
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 67
model name      : AMD Athlon(tm) 64 X2 Dual Core Processor 5600+
stepping        : 3
cpu MHz         : 2814.157
cache size      : 1024 KB
physical id     : 0
siblings        : 2
core id         : 1
cpu cores       : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext
3dnow pni cx16 lahf_lm cmp_legacy svm extapic cr8legacy ts fid vid ttp tm stc
bogomips        : 5627.33
clflush size    : 64

[ivo@sarmax ~]$ 

[root@sarmax ~]# lspci
00:00.0 Host bridge: ALi Corporation M1697 HTT Host Bridge
00:01.0 PCI bridge: ALi Corporation PCI Express Root Port
00:02.0 PCI bridge: ALi Corporation PCI Express Root Port
00:03.0 PCI bridge: ALi Corporation PCI Express Root Port
00:04.0 PCI bridge: ALi Corporation PCI Express Root Port
00:11.0 PCI bridge: ALi Corporation M5249 HTT to PCI Bridge
00:12.0 Ethernet controller: ALi Corporation ULi 1689,1573 integrated ethernet.
(rev 60)
00:13.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:13.1 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:13.2 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:13.3 USB Controller: ALi Corporation USB 2.0 Controller (rev 01)
00:14.0 Audio device: ALi Corporation High Definition Audio/AC'97 Host
Controller (rev 01)
00:15.0 ISA bridge: ALi Corporation PCI to LPC Controller (rev 10)
00:15.1 Bridge: ALi Corporation M7101 Power Management Controller [PMU]
00:16.0 IDE interface: ALi Corporation M5229 IDE (rev c7)
00:16.1 IDE interface: ALi Corporation ULi M5288 SATA
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM
Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
Miscellaneous Control
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon X1950 Pro
(Primary) (PCIE)
01:00.1 Display controller: ATI Technologies Inc Radeon X1950 Pro (Secondary) (PCIE)
05:0b.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 05)
05:0b.1 Input device controller: Creative Labs SB Live! Game Port (rev 05)
05:0c.0 SCSI storage controller: Adaptec AIC-7892B U160/m (rev 02)
[root@sarmax ~]#