AMD Athlon X2 7750 - L3 Cache isn't detected

[bsh]

Binary package hint: linux-image-2.6.24-24-generic

L3 Cache isn't detected at all, or at least, there's no sign of it anywhere I looked. /proc/cpuinfo, /sys/cpu, lshw, dmesg - nothing. L1 and L2 and other CPU info data are ok, but no L3 at all.
Powernow_k8 doesn't work either, probably the cpu isn't recognized properly?

cat /proc/cpuinfo:
processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : AMD Athlon(tm) 7750 Dual-Core Processor
stepping : 3
cpu MHz : 2700.000
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good pni cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs
bogomips : 5405.25
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

processor : 1
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : AMD Athlon(tm) 7750 Dual-Core Processor
stepping : 3
cpu MHz : 2700.000
cache size : 512 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good pni cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs
bogomips : 5400.03
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

Motherboard is a Gigabyte GA-M720-US3, nForce 720D

[Jeremy Foshee (jeremyfoshee)]

Hi bsh,

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 385372

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[bsh (bsh)]

"This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue?"

LOL, no activity? Seriously? And telling this to me? What activity would you explain from me? I thought, it's your (or someone else's) job to make some activity, after a bug has been reported... And why would it not be an issue anymore, if there were no activites? Do bugs just disappear by themselves, or what?

And why you ask me for further testing? Am i the only one with an AMD processor with L3 cache on the whole world?

Sorry, I can not test the new prealpha-whatever release ISO. I am running 9.10 since then, i can run tests on this and report, but that's all.
I tried the above command, but it spit out tons of error messages (something with epiphany, wtf?), then opened launchpad in firefox and wanted me to log in and specify what privileges apport-collect is going to have, i gave it read-non-private-data, after which the terminal gave another burst of errors. when reading back, i found it mentionong i should have given change-anything rights. So i deleted the mentioned credentials file and wanted to start all over, but it didn't ask for the privileges anymore. So i deleted the privileges on launchpad (from within firefox), but this only made things worse. This stuff is a real PITA. I'm not doing this.
Since then i changed to a Phenom II X4 940, which also happen to have a L3 cache, and which is also not displayed by anything, as stated in the original post.
So yes, this is still an issue.
I hope someone will send you more detailed logs.
Regards,
bsh

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu development release http://cdimage.ubuntu.com/daily-live/current/ . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]