>>>>> On Mon, 28 Feb 2005 14:10:53 +0900, Kenji Kaneshige <[EMAIL PROTECTED]>
>>>>> said:
Kenji> Hi Cristoph,
>>> +config NR_RTE_CACHES
>>> + int "Number of RTE cache entries"
>>> + depends on IOSAPIC
>>> + default "256"
>>> + help
>>> + If your system panic with the message "out of rte cache
>>> + entries!(shortage: XX)", please set this to a larger value.
>>
>>
>> This screams for dynamic allocation of the underlying structures, no?
Kenji> Some number (NR_RTE_CACHES) of iosapic_rte_info structures are
Kenji> statically allocated because this structure might be needed before
Kenji> kmalloc is initialized. The panic message mentioned above means we
Kenji> run out of these statically allocated structures.
The problem is naming, I think. Those aren't "cache entries", they
are statically preallocated entries. How about changing the config
option name to:
config NR_PREALLOCATED_RTE_ENTRIES
and the help message to something along the lines of:
The I/O SAPIC code needs a small number of statically
preallocated RTE entries so that it can work even before
kmalloc has been initialized. The default value for this
option should normally be sufficient, but if you get a panic
of the form "out of preallocated RTE entries!", that's a
sign that this value needs to be increased.
--david
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