[Issue 3798] New: core.cpuid locks systems with Xeon E5530 CPU

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=3798

           Summary: core.cpuid locks systems with Xeon E5530 CPU
           Product: D
           Version: 2.040
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P2
         Component: Phobos
        AssignedTo: nobody at puremagic.com
        ReportedBy: dsimcha at yahoo.com


--- Comment #0 from David Simcha <dsimcha at yahoo.com> 2010-02-12 11:25:40 PST ---
At my workplace, we've got a bunch of Linux boxes around.  On the ones with the
following cpuinfo, importing core.cpuid causes any D program to hang with 100%
CPU usage during execution of static this() before main() is even called:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 26
model name      : Intel(R) Xeon(R) CPU           E5530  @ 2.40GHz
stepping        : 5
cpu MHz         : 2393.863
cache size      : 8192 KB
physical id     : 1
siblings        : 8
core id         : 0
cpu cores       : 4
apicid          : 16
initial apicid  : 16
fpu             : yes
fpu_exception   : yes
cpuid level     : 11
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm
constant_tsc arch_perfmon pebs bts rep_good xtopology tsc_reliable nonstop_tsc
pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2
popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips        : 4787.72
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management:


According to GDB, the function where the program hangs is
core.cpuid.getCpuInfo0B().

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