on 08/11/2012 01:00 Greg 'groggy' Lehey said the following: > On Wednesday, 7 November 2012 at 16:35:22 -0600, Larry Rosenman wrote: >> On 2012-11-07 15:39, Greg 'groggy' Lehey wrote: >>> On Wednesday, 7 November 2012 at 10:32:23 -0500, Benjamin Kaduk >>> wrote: >>>> >>>> Once again, attempting to use kernel internals outside of the >>>> supported interfaces is just asking for trouble; I do not understand >>>> why this message is not sinking in over the course of your previous >>>> mails to these lists, so I will not try to belabor it further. >>> >>> IIRC lsof is a special case that always needs to be built with >>> intimate knowledge of the kernel. >> >> This is VERY true. Since some of the information lsof uses has >> no API/ABI/KPI/KBI to get, it grovels around in the kernel. > > And until those interfaces are provided, I think this is legitimate. > If there's anybody out there who hasn't used lsof, you should try it. > It's good. Just curious why lsof can't use interfaces that e.g. fstat/sockstat/etc use? Those base utilities do not seem to experience as much trouble as lsof. BTW, it is still beyond me why VOP_WRITE could be of any interest to userland code even for such a utility as lsof. -- Andriy GaponReceived on Thu Nov 08 2012 - 13:17:03 UTC
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