#linuxcnc-devel | Logs for 2014-07-20

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[00:00:37] <andypugh> Does it make sense that “pocket” is ignored in non-random toolholders?
[00:01:42] <andypugh> It rather feels like pockets were added for random toolchangers, and nonrandom got them by default, but a decision was made to ignore the pocket number.
[00:02:20] prtksxna is now known as zz_prtksxna
[00:03:05] <andypugh> If I had a 6-pocket carousel (I don’t) but had 30 tools (I do) then it would seem entirely reasonable to keep all the tools in the table, and fiddle the pockets as I set up a job.
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[00:04:51] <andypugh> I guess I am asking why nonrandom nearly (but not quite) ignores the pocket column, and if there would be any issues caused by chosing not to ignore it.
[00:06:36] <andypugh> This doesn’t actually matter to me, except that the G43.2 demo config I pushed doesn’t behave the way I think it should because of this, the tool.pocket-prepare pin takes tool-number nor pocket-number, but I rather think that is normal. (And that bothers me)
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[00:26:43] <Roguish> hey all.. just did a new install of Precise 12.04 and a full Linuxcnc install according to the Wiki 'LinuxCNC On Ubuntu Precise'.
[00:26:44] <Roguish> everything went good. no install errors. Installed the 'precise 2.6-pr' version. again no issues.
[00:26:46] <Roguish> Now when I run I get the good old 'RTAPI: ERROR: failed to map shmem' etc, etc, etc
[00:26:47] <Roguish> what up? any ideas? thanks
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[00:28:58] <andypugh> I have a feeling this is a setuid thing.
[00:30:51] <Roguish> possibly. i take the instruction in the wiki literally. no setuid command.......
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[00:34:00] <andypugh> I am just guessing
[00:34:15] <andypugh> What does dmesg say?
[00:34:48] <skunkworks_> then - you need to sudo make setuid
[00:35:26] <Roguish> OK, from what directory?
[00:35:39] <andypugh> skunkworks_: That only really makes sense of compiling, rather than installing packages.
[00:36:26] <Roguish> it is an install, not a compile.
[00:37:06] <skunkworks_> oh..
[00:39:10] <skunkworks_> Roguish: on a side note - if you want to test a livecd.. there is a wheezy based one ready for testing http://www.linuxcnc.org/binary.hybrid.iso
[00:40:14] <Roguish> what is the realtime portion? and version (branch)?
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[00:41:59] <Roguish> changing computers so i can post info.
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[01:28:45] <jepler> I have not used ubuntu precise, with linuxcnc or no. The shmem error is similar to that encountered when the /etc/limits.conf limit on locked memory has not been raised. Installing the linuxcnc package is supposed to write some lines to limits.conf, but for them to become effective you have to log out and log in again.
[01:29:23] <jepler> after logging in again, check the lock limit with the terminal command: ulimit -l
[01:30:25] <jepler> if it prints 20480, then the limit set by installing the linuxcnc package is in effect. If it prints a smaller number (64 is the default on a debian 7 system) then the limit has not been increased for whatever reason.
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[04:15:03] <CaptHindsight> yes, you have to logout/in the Precise Linuxcnc + RTAI install to use the lock limit settings build into the install
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[07:36:13] <micges-dev1> 5+
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[07:53:35] <memfrob> micges-dev1, 5+ ?
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[08:35:18] <micges-dev1> memfrob: sorry my 1yr old hack got to keyb ;)
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[17:59:55] <fenugrec> (copied from #linuxcnc) I would have a small patch to propose for /docs/src/install/Latency_Test.txt ; just a few words mentioning "hdparm -tT /dev/sda" as an excellent way to test worst case jitter. Where can I submit it for review ? do I file a bug somewhere
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[19:13:57] <micges-dev> pcw_home: is SSLBP Clock: 1717 MHz correct data?
[19:14:56] <pcw_home> no
[19:15:24] <micges-dev> ok
[19:16:29] <pcw_home> the CPU/UART clock is 100 MHz on Spartan6 FPGA cards (50 on SP2 75 or 72 on SP3)
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[19:18:38] <micges-dev> oh ok
[19:19:50] <pcw_home> not actually needed for anything since the SSLBP firmware calculates baud rate settings etc
[19:19:51] <pcw_home> The firmware reads a register that has the (constant) SSLBP clock for this purpose (constant compiled-in)
[19:20:10] <micges-dev> on my 7i77 just format of interface regs left
[19:20:36] <micges-dev> yeah I just want data to be reported correctly
[19:20:56] <pcw_home> that stuff is from discovery (there's no card specific stuff in the driver for example)
[19:21:43] <pcw_home> (well only for 7I64 and 8I20 which were pre-discovery system)
[19:23:18] <pcw_home> data is always just packed in the discover process data record order
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[19:24:52] <pcw_home> do you have the source to "info"
[19:25:11] <pcw_home> it prints a bunch of sslbp stats
[19:25:23] <micges-dev> just looking at it atm
[19:34:22] <pcw_home> bbl beachtime!
[19:37:10] <micges-dev> have fun
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[22:10:57] <micges-dev> pcw_home: 7i77 analog part works perfectly
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