[OpenAFS-Doc] Re: [OpenAFS-devel] vmalloc memory leak in 1.3.84/85?

[Michael D. Norwick]

Chaskiel M Grundman wrote:

>
>
> --On Thursday, July 28, 2005 10:00:04 AM -0700 Miles Davis
> <miles@cs.stanford.edu> wrote:
>
>>> you could try enabling pag garbage collection
>>> sysctl -w afs.GCPAGs=1
>>
>>
>> Huh... I had no idea those were there. The default seems to be 2 -- what
>> does that mean, and are these documented somewhere?
>

>> Documentation on new features? hah.
>
Gee, seems like I had some dialog on this ohhhh, last week?  No
direction has yet been forthcoming.

>>
>>
>> 2 is AFS_GCPAGS_USERDISABLED
>> only a value of 1 (AFS_GCPAGS_OK) will cause the garbage collector to
>> run. I think that the point of the non-zero disable value is because
>> the macro AFS_GCPAGS is used both as a compile time directive (#if 
>> AFS_GCPAGS), but is also the initializer for the run-time variable
>> afs_gcpags (which is what the sysctl modifies and affects the runtime
>> behavior of the code when it is compile-time enabled). There are
>> other possible values for afs_gcpags, which indicate that the code
>> disabled itself due to encountering an error while examining process
>> lists.
>
Michael