On Tue, Mar 30, 2010 at 3:21 PM, Mark Knecht <markknecht@xxxxxxxxx> wrote:
> I just finished a long compile on my dad's i5-661/DH55HC machine which
> uses this same WD drive and I didn't spot any sign of this happening
> there. That's a very recent Intel chipset also and probably more or
> less the same SATA controller.
>
> I'm going to turn on the kernel message into dmesg thing for a while
> and see if anything pops up.
>
> I can set up some additional partitions on my local drive to test
> other file systems but since you're ext3 and I'm ext3 then it's not
> that unless the problem moved forward with code over time.
>
> I like the idea of using dd but I want to be careful about that sort
> of thing. I've not used dd before, but if I could tell it to write a
> gigabyte without messing up existing stuff then that could be helpful.
>
> Back later,
> Mark
>
> On Tue, Mar 30, 2010 at 1:59 PM, Jim Duchek <jim.duchek@xxxxxxxxx> wrote:
>> I'm using ext4 on everything, but it's hard to judge which ext3 bugs
>> might affect ext4 as well. I really don't have the ability to
>> destructively test the array, I need all the data that's on it and I
>> don't have enough spare space elsewhere to back it all up. You might
>> see if you can trigger it with dd, writing to the drive directly w/no
>> filesystem?
>>
>> Jim
>>
<SNIP>
I know this isn't going to survive email very well but you might want
to look at interrupts. I'm seeing the count on CPU #5 rising much more
quickly than other CPU's, and in my case it's generally CPU #5 that
stalls out with this 100% wait problem.
I'm looking at another 4 processor machine that's been up for a few
days. Its interrupt counts are fairly balanced, except for TLB
Shootdowns, whatever that is.
Wouldn't know how to tell if it's related...
- Mark
Using keyboard-interactive authentication.
Password:
Last login: Tue Mar 30 15:59:22 PDT 2010 from 192.168.1.65 on pts/0
keeper ~ # cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3 CPU4 CPU5
CPU6 CPU7
0: 232 0 0 1 0 0
0 0 IO-APIC-edge timer
1: 0 0 0 2 0 0
0 0 IO-APIC-edge i8042
3: 0 0 0 2 0 0
0 0 IO-APIC-edge
8: 0 0 0 91 0 0
0 0 IO-APIC-edge rtc0
9: 0 0 0 0 0 0
0 0 IO-APIC-fasteoi acpi
12: 0 0 0 4 0 0
0 0 IO-APIC-edge i8042
14: 0 0 0 0 0 0
0 0 IO-APIC-edge ide0
15: 0 0 0 0 0 0
0 0 IO-APIC-edge ide1
16: 0 0 0 0 82 0
0 0 IO-APIC-fasteoi ahci, uhci_hcd:usb1, nvidia
18: 0 0 0 0 0 0
0 0 IO-APIC-fasteoi uhci_hcd:usb6, ehci_hcd:usb7
19: 0 0 0 0 0 3137
0 0 IO-APIC-fasteoi ahci, firewire_ohci,
uhci_hcd:usb3, uhci_hcd:usb5
20: 0 0 0 0 0 0
265 0 IO-APIC-fasteoi eth0
21: 0 0 0 0 0 0
0 0 IO-APIC-fasteoi uhci_hcd:usb2
22: 154 0 0 0 0 0
0 0 IO-APIC-fasteoi hda_intel
23: 0 0 0 0 0 0
0 0 IO-APIC-fasteoi uhci_hcd:usb4, ehci_hcd:usb8
NMI: 0 0 0 0 0 0
0 0 Non-maskable interrupts
LOC: 7048 6722 3577 3598 3491 8425
3756 3569 Local timer interrupts
SPU: 0 0 0 0 0 0
0 0 Spurious interrupts
PMI: 0 0 0 0 0 0
0 0 Performance monitoring interrupts
PND: 0 0 0 0 0 0
0 0 Performance pending work
RES: 335 332 353 259 176 173
251 82 Rescheduling interrupts
CAL: 242 233 258 180 241 160
260 260 Function call interrupts
TLB: 232 242 270 235 342 474
537 497 TLB shootdowns
TRM: 0 0 0 0 0 0
0 0 Thermal event interrupts
THR: 0 0 0 0 0 0
0 0 Threshold APIC interrupts
MCE: 0 0 0 0 0 0
0 0 Machine check exceptions
MCP: 2 2 2 2 2 2
2 2 Machine check polls
ERR: 7
MIS: 0
keeper ~ # date
Tue Mar 30 16:45:13 PDT 2010
keeper ~ # cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3 CPU4 CPU5
CPU6 CPU7
0: 232 0 0 9 0 0
0 0 IO-APIC-edge timer
1: 0 0 0 2 0 0
0 0 IO-APIC-edge i8042
3: 0 0 0 2 0 0
0 0 IO-APIC-edge
8: 0 0 0 91 0 0
0 0 IO-APIC-edge rtc0
9: 0 0 0 0 0 0
0 0 IO-APIC-fasteoi acpi
12: 0 0 0 4 0 0
0 0 IO-APIC-edge i8042
14: 0 0 0 0 0 0
0 0 IO-APIC-edge ide0
15: 0 0 0 0 0 0
0 0 IO-APIC-edge ide1
16: 0 0 0 0 2660 0
0 0 IO-APIC-fasteoi ahci, uhci_hcd:usb1, nvidia
18: 0 0 0 0 0 0
0 0 IO-APIC-fasteoi uhci_hcd:usb6, ehci_hcd:usb7
19: 0 0 0 0 0 20762
0 0 IO-APIC-fasteoi ahci, firewire_ohci,
uhci_hcd:usb3, uhci_hcd:usb5
20: 0 0 0 0 0 0
1903 0 IO-APIC-fasteoi eth0
21: 0 0 0 0 0 0
0 0 IO-APIC-fasteoi uhci_hcd:usb2
22: 154 0 0 0 0 0
0 0 IO-APIC-fasteoi hda_intel
23: 0 0 0 0 0 0
0 0 IO-APIC-fasteoi uhci_hcd:usb4, ehci_hcd:usb8
NMI: 0 0 0 0 0 0
0 0 Non-maskable interrupts
LOC: 10618 11998 8756 6940 6484 22076
7456 6599 Local timer interrupts
SPU: 0 0 0 0 0 0
0 0 Spurious interrupts
PMI: 0 0 0 0 0 0
0 0 Performance monitoring interrupts
PND: 0 0 0 0 0 0
0 0 Performance pending work
RES: 335 332 353 259 176 173
251 82 Rescheduling interrupts
CAL: 242 233 258 180 241 160
260 260 Function call interrupts
TLB: 232 243 270 236 343 475
538 497 TLB shootdowns
TRM: 0 0 0 0 0 0
0 0 Thermal event interrupts
THR: 0 0 0 0 0 0
0 0 Threshold APIC interrupts
MCE: 0 0 0 0 0 0
0 0 Machine check exceptions
MCP: 10 10 10 10 10 10
10 10 Machine check polls
ERR: 7
MIS: 0
keeper ~ #
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