Le 04/04/2013 18:08, Bruce Dubbs a écrit :
> Pierre Labastie wrote:
>> Le 03/04/2013 00:26, Bruce Dubbs a écrit :
>>> Pierre Labastie wrote:
>>>> Le 02/04/2013 19:39, Bruce Dubbs a écrit :
>>>>> I was meaning to bring this up again. I get
>>>>>
>>>>> Running ./pmap.test/pmap.exp ...
>>>>> FAIL: pmap X with unreachable process
>>>>> FAIL: pmap XX with unreachable process
>>> That means that it can't find /proc/1. If /proc is mounted, that should
>>> always be there, e.g. `cat /proc/1/cmdline`.
>>>
>>>
>>>>> vmstat gives me:
>>>>>
>>>>> # of expected passes 6
>>>> I have not been able to reproduce the /proc/diskstats beginning with
>>>> sr0. Only in that case does the vmstat test fail.
>>> Isn't sr0 a cdrom? On my system, I have:
>>>
>>> 11 0 sr0 0 0 0 0 0 0 0 0 0 0 0
>>>
>>> Major dev#, minor dev#, name, counters...
>>>
>>>
>> The failure in the test depends on the ordering of the the
>> /proc/diskstats table. This morning, I had:
>> -------------------------------
>> pierre@debian32-virt:~$ cat /proc/diskstats
>> 2 0 fd0 0 0 0 0 0 0 0 0 0 0 0
>> 11 0 sr0 19 0 152 136 0 0 0 0 0 136 136
>> 8 0 sda 32783 8723 2567928 84792 336771 8561249 71767606
>> 11478240 0 1477316 11607988
>> 8 1 sda1 559 2108 19320 1148 4 0 20 0 0 956 1148
>> 8 2 sda2 161 31 1536 172 0 0 0 0 0 172 172
>> [...]
>> -------------------------------
>> And the test failed with:
>> Running ./vmstat.test/vmstat.exp ...
>> FAIL: vmstat partition (using sr0)
>>
>> === vmstat Summary ===
>>
>> # of expected passes 5
>> # of unexpected failures 1
>> /sources/procps-ng-3.3.7/vmstat version 3.3.7
>> -------------------------------
>> The problem is that ' 11 0 sr0 19 0 152 136 0 0 0 0 0 136 136'
>> matches
>> '\\s+\\d+\\s+\\d+\\s+\(\[a-z\]+\\d+\)\\s+\(\[0-9\]\[0-9\]+\)' (in
>> vmstat.exp).
> I guess they were not expecting you to have done reads from the cdrom.
>
I haven't. Of course, I could disable the CDROM on the virtual machine.
But when it is present, there are always a few reads, even if I boot
from disk. I guess the kernel makes a few reads at init time.
When I sent the mail, I had not yet read about tcl regexp... Changing to
\[a-z\]\{3\} should work too. I think you need to escape the braces
because they would be interpreted by the shell. For example, the true
regexp above is:
\s+\d+\s+\d+\s+([a-z]+\d+)\s+([0-9][0-9]+\),
but \, (, ), [ and ] need to be escaped (and so do { and })
Not trying that tonight since I want to commit the jhalfs patches...
Regards,
Pierre
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