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SubjectHP XW6200: ACPI errors vs SMP / Hyperthreading + bad memory detection, 2.6.16.28 and 2.6.17.11? [try #3]
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Hi all,

I've been running into a few troubles on our HP XW6200 workstations.

SYMPTOM 1:

If I'm booting normally I'm getting theses errors in dmesg (using either
a 2.6.16.x or 2.6.17.11):

EXT3-fs: mounted filesystem with ordered data mode.
Adding 2048276k swap on /dev/sda3. Priority:-1 extents:1
across:2048276k
EXT3 FS on sda2, internal journal
ACPI Error (evgpe-0688): No handler or method for GPE[ 0], disabling
event [20060127] ACPI Error (evgpe-0688): No handler or method for GPE[
1], disabling event [20060127] ACPI Error (evgpe-0688): No handler or
method for GPE[ 2], disabling event [20060127] ACPI Error (evgpe-0688):
No handler or method for GPE[ 5], disabling event [20060127] ACPI Error
(evgpe-0688): No handler or method for GPE[ 6], disabling event
[20060127] ACPI Error (evgpe-0688): No handler or method for GPE[ 7],
disabling event [20060127] ACPI Error (evgpe-0688): No handler or method
for GPE[ 9], disabling event [20060127] ACPI Error (evgpe-0688): No
handler or method for GPE[ A], disabling event [20060127] ACPI Error
(evgpe-0688): No handler or method for GPE[ F], disabling event
[20060127] ACPI Error (evgpe-0688): No handler or method for GPE[10],
disabling event [20060127] ACPI Error (evgpe-0688): No handler or method
for GPE[11], disabling event [20060127] ACPI Error (evgpe-0688): No
handler or method for GPE[12], disabling event [20060127] ACPI Error
(evgpe-0688): No handler or method for GPE[13], disabling event
[20060127] ACPI Error (evgpe-0688): No handler or method for GPE[14],
disabling event [20060127] ACPI Error (evgpe-0688): No handler or method
for GPE[15], disabling event [20060127] ACPI Error (evgpe-0688): No
handler or method for GPE[16], disabling event [20060127] ACPI Error
(evgpe-0688): No handler or method for GPE[17], disabling event
[20060127] ACPI Error (evgpe-0688): No handler or method for GPE[19],
disabling event [20060127] ACPI Error (evgpe-0688): No handler or method
for GPE[1A], disabling event [20060127] ACPI Error (evgpe-0688): No
handler or method for GPE[1B], disabling event [20060127] ACPI Error
(evgpe-0688): No handler or method for GPE[1C], disabling event
[20060127] ACPI Error (evgpe-0688): No handler or method for GPE[1D],
disabling event [20060127] ACPI Error (evgpe-0688): No handler or method
for GPE[1E], disabling event [20060127] ACPI Error (evgpe-0688): No
handler or method for GPE[1F], disabling event [20060127]
mice: PS/2 mouse device common for all mice
usbcore: registered new driver usbmouse


Also, if I add the acpi=off it removes the ACPI Error msgs but then I
just can see two cpu instead of the usual 4 (2 + hyper-threading)... I
really don't know if I'm actually seing two physical CPU or just one
with it's hyperthreading?
Here is one cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 1
cpu MHz : 3200.728
cache size : 1024 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
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 lm
constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips : 6409.57

Top with acpi=off
top - 17:57:51 up 1:28, 3 users, load average: 2.56, 2.61, 2.41
Tasks: 120 total, 4 running, 116 sleeping, 0 stopped, 0 zombie
Cpu0 : 56.3% us, 5.5% sy, 0.0% ni, 31.4% id, 1.5% wa, 0.2% hi,5.1%
si
Cpu1 : 57.3% us, 5.7% sy, 0.0% ni, 33.1% id, 1.7% wa, 0.2% hi,2.0%
si

Top without acpi=off
top - 17:58:42 up 8 min, 1 user, load average: 0.00, 0.05, 0.03
Tasks: 84 total, 1 running, 83 sleeping, 0 stopped, 0 zombie
Cpu0 : 0.0% us, 0.0% sy, 0.0% ni, 100.0% id, 0.0% wa, 0.0% hi,0.0%
si
Cpu1 : 0.0% us, 0.0% sy, 0.0% ni, 100.0% id, 0.0% wa, 0.0% hi,0.0%
si
Cpu2 : 0.0% us, 0.0% sy, 0.0% ni, 99.0% id, 0.0% wa, 0.0% hi,1.0%
si
Cpu3 : 0.0% us, 0.0% sy, 0.0% ni, 94.4% id, 0.0% wa, 0.0% hi,5.6%
si

Note that noapic option did not changed any behaviour about this.

========================================================================
===
SYMPTOM 2:

Also, theses workstations are either running with 4gig or 5gig of ram
(depending of the workstation..). If the kernel is not set-up into
"bigmem" (64gig) then I can only see about 3gig of ram?

Here is the meminfo WITHOUT 64gig highmem enabled:
MemTotal: 3370236 kB
MemFree: 3136524 kB
Buffers: 8656 kB
Cached: 119728 kB
SwapCached: 0 kB
Active: 149880 kB
Inactive: 45432 kB
HighTotal: 2228180 kB
HighFree: 2031484 kB
LowTotal: 1142056 kB
LowFree: 1105040 kB
SwapTotal: 2048276 kB
SwapFree: 2048276 kB
Dirty: 4 kB
Writeback: 0 kB
Mapped: 85092 kB
Slab: 17796 kB
CommitLimit: 3733392 kB
Committed_AS: 157468 kB
PageTables: 620 kB
VmallocTotal: 114680 kB
VmallocUsed: 43564 kB
VmallocChunk: 66036 kB


And here is the same system WITH 64gig highmem enabled:
MemTotal: 5189828 kB
MemFree: 3583332 kB
Buffers: 152364 kB
Cached: 1201992 kB
SwapCached: 0 kB
Active: 1098516 kB
Inactive: 368720 kB
HighTotal: 4325332 kB
HighFree: 3002304 kB
LowTotal: 864496 kB
LowFree: 581028 kB
SwapTotal: 2048276 kB
SwapFree: 2048276 kB
Dirty: 7672 kB
Writeback: 0 kB
Mapped: 166440 kB
Slab: 120676 kB
CommitLimit: 4643188 kB
Committed_AS: 299400 kB
PageTables: 2408 kB
VmallocTotal: 118776 kB
VmallocUsed: 43528 kB
VmallocChunk: 70132 kB

Note that noapic or acpi=off do not affect this.


Has anybody ran into theses type of errors?

Thnx!

Vincent Fortier
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