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[00:12:11] <jthornton> yes .dxf and then convert to .png
[00:12:29] <jthornton> I'm cooking so I ran down here to see if you needed anything else
[00:12:49] <jthornton> screenshots are all .png
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[01:16:43] <memleak> Hello all!
[01:17:03] <memleak> Finally figured out why version.h stopped being detected by linuxcnc with kernel 3.8
[01:18:22] <memleak> version.h moved from include/linux to include/generated/uapi/linux in 3.8
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[01:24:14] <memleak> I sent an email to the linuxcnc dev list. If you're not on it, I'll sum it up. ./configure --with-kernel-headers=/lib/modules/`uname -r`/build/include -> checking for /lib/modules/3.8.13-RTAI/build/include/linux/version.h... no configure: error: version.h not found - Is the kernel headers package installed ?
[01:25:23] <memleak> ntu@ntu ~/devel/emc2-dev/src $ ls -ls /lib/modules/`uname -r`/build/include/generated/uapi/linux
[01:25:23] <memleak> total 4 4 -rw-r--r-- 1 root root 97 Jun 14 18:20 version.h
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[01:34:24] <CaptHindsight> memleak: jepler mentioned earlier today: I think 'perf' can record where page faults occur. doing 'perf record -e faults linuxcnc' + 'perf report' would then tell you where to lookalso maybe double-check that mlockall is being called correctly and that its return value is success (probably better to arrange for only rtapi_app to be 'perf record'ed because we know there will be page faults
[01:34:25] <CaptHindsight> in the GUIs and other non-realtime parts)
[01:34:54] <CaptHindsight> IIRC the page faults are occurring in rtapi_app
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[01:41:17] <memleak> Lars Segerlund said the same thing about RTAPI_APP. I'll have to go back to PREEMPT_RT to get the debugging info, just trying out a quick RTAI build with linuxcnc.
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[02:35:19] <cradek> jeez every time I look the kernel version is += 0.2
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[02:47:31] <jepler> yeah that's how they do it now
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[02:58:50] <skunkworks> it is funny when you guys are probably sitting right next to one another.. ;)
[02:59:33] <cradek> no, we've actually quit for the night already
[02:59:53] <skunkworks> oh! you guys are getting old. :)
[03:00:19] <cradek> yeah we're about as old as you!
[03:00:32] <skunkworks> I already knew I was old..
[03:00:44] <skunkworks> (my wife keeps telling me that)
[03:01:19] <skunkworks> not too many arguments?
[03:01:49] <cradek> here? nah everybody has been perfectly reasonable ... so far
[03:01:58] <skunkworks> great!
[03:01:58] <cradek> or do you mean me and jeff?
[03:02:14] <skunkworks> heh - in general. Do we have to separate you two?
[03:02:52] <cradek> did you say you're coming wednesday?
[03:03:05] <skunkworks> yes - should be there sometime in the afternoon
[03:03:17] <cradek> you and everyone else! it's going to be a madhouse.
[03:03:22] <skunkworks> yes
[03:03:27] <skunkworks> sounds like the time to come...
[03:03:29] <skunkworks> ;)
[03:03:42] <cradek> andypugh showed up this morning
[03:03:51] <skunkworks> Great - can you understand him?
[03:04:10] <cradek> some of the time
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[03:16:17] <CaptHindsight> heh
[03:17:20] <CaptHindsight> skunkworks: how long are you staying?
[03:22:16] <skunkworks> leave sudnay some time
[03:22:20] <skunkworks> sunday
[03:23:15] <CaptHindsight> I'm going to try for Thursday late afternoon till Sat eve
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[04:25:33] <memleak> cradek: In regards to your comment, "jeez every time I look the kernel version is += 0.2" the 3.8.13 RTAI port was me :P
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[04:32:00] <memleak> jepler: I did several perf record... thingys, whatever they're called:
http://dpaste.com/1249519/
[04:32:21] <memleak> Following order is rtapi_app, latency-test, then linuxcnc
[04:34:00] * memleak cannot make a single speck of sense out of any of that
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[04:54:24] <cradek> mshaver: you'd think we'd be asleep...
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[04:58:12] <cradek> memleak:
https://lwn.net/Articles/340010/
[04:58:30] <cradek> maybe you can get a call graph for those rtapi_app hits?
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[05:09:14] <memleak> yep!
[05:11:48] <cradek> going to share?
[05:17:30] <memleak> hmm... perf report --sort symbols --callchain fractal,5 | cat says Error: unknown option `callchain'
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[05:21:42] <memleak> ah, they renamed it
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[05:23:31] <memleak> http://dpaste.com/hold/1249620/
[05:26:35] <cradek> setjmp is surprising
[05:27:09] <cradek> what's calling it?
[05:27:24] <memleak> i want to guess libc considering it's the same line?
[05:27:33] * memleak cannot read these kinds of things.
[05:28:02] <memleak> i can compile with -g3 if you like?
[05:28:06] <cradek> you can't have many setjmps...
[05:28:12] <memleak> -O0 -g3
[05:28:48] <cradek> I see one in rtapi/examples/fifo but I have no idea if your tree and mine are similar
[05:29:00] <cradek> I've got to go to sleep - maybe tomorrow someone will shed light.
[05:29:02] <memleak> i'm using mhaberler's git tree on mah priv
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[05:29:17] <memleak> rtos-master-v0, he told me to use thart
[05:29:19] <memleak> good night!
[05:29:42] <cradek> g'night
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[05:47:39] <KimK> cradek: mshaver: or anybody, I went thru my box-o-junk and found an old "b" client that appears to work, I'll leave it on the conference table plugged into the switch box, along with a parallel cable (cradek's) and a yellow network cable with black velcro tab (who's?)
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