Re: [Emc-developers] circular arc blend beta: milltask (pid 6660) died on signal 11.
It has not happened to me again. It was a one time thing so far. When I'm working with the machine, I copy down .ngc files to a folder on the cnc controller machine. Then run through them. Often I delete these files at the end of working with the cnc. I may have left the file open in Axis, deleted them from the computer, ran my toolchange program, and when it finished... bang! On the older 2.5 version this would just freeze axis occasionally. I'm wondering if the beta branch has different code that faults instead of freezes axis. On Wed, Jan 22, 2014 at 9:28 PM, Jon Elson el...@pico-systems.com wrote: On 01/22/2014 02:04 PM, Sebastian Kuzminsky wrote: Oh, signal 11! I know that one. It can be caused by bad memory or cache. The OP might want to run the memtest86 that at least used to be included on the live CD. Jon -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
Re: [Emc-developers] circular arc blend beta: milltask (pid 6660) died on signal 11.
Hi Curtis, Thanks for taking the plunge with the new TP!I think I've seen something like this too. Typically it's when I move an ngc file, then try to open it from the 'recent files' list. Predictably, the file isn't there and it throws an error, but then segfaults in milltask. Has anyone had experience using GDB to debug the task portion of LinuxCNC? I've run rtapi_app through GDB in simulation to catch segfaults in motion, but I'm not sure how to set this up for the task stuff or GUI's. -Rob On Fri, Jan 24, 2014 at 10:00 AM, Curtis Dutton curtd...@gmail.com wrote: It has not happened to me again. It was a one time thing so far. When I'm working with the machine, I copy down .ngc files to a folder on the cnc controller machine. Then run through them. Often I delete these files at the end of working with the cnc. I may have left the file open in Axis, deleted them from the computer, ran my toolchange program, and when it finished... bang! On the older 2.5 version this would just freeze axis occasionally. I'm wondering if the beta branch has different code that faults instead of freezes axis. On Wed, Jan 22, 2014 at 9:28 PM, Jon Elson el...@pico-systems.com wrote: On 01/22/2014 02:04 PM, Sebastian Kuzminsky wrote: Oh, signal 11! I know that one. It can be caused by bad memory or cache. The OP might want to run the memtest86 that at least used to be included on the live CD. Jon -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
Re: [Emc-developers] circular arc blend beta: milltask (pid 6660) died on signal 11.
On 1/24/14 11:43 , Robert Ellenberg wrote: Thanks for taking the plunge with the new TP!I think I've seen something like this too. Typically it's when I move an ngc file, then try to open it from the 'recent files' list. Predictably, the file isn't there and it throws an error, but then segfaults in milltask. Has anyone had experience using GDB to debug the task portion of LinuxCNC? I've run rtapi_app through GDB in simulation to catch segfaults in motion, but I'm not sure how to set this up for the task stuff or GUI's. If you guys can come up with a simple way to reproduce the problem, preferably using a sim config that anyone can run without special hardware, that would be very valuable to whoever ends up debugging this. Attach the steps to reproduce when you make the bug report at http://sf.net/p/emc/bugs -- Sebastian Kuzminsky -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
Re: [Emc-developers] circular arc blend beta: milltask (pid 6660) died on signal 11.
On 1/24/2014 1:43 PM, Robert Ellenberg wrote: Hi Curtis, Thanks for taking the plunge with the new TP!I think I've seen something like this too. Typically it's when I move an ngc file, then try to open it from the 'recent files' list. Predictably, the file isn't there and it throws an error, but then segfaults in milltask. Has anyone had experience using GDB to debug the task portion of LinuxCNC? I've run rtapi_app through GDB in simulation to catch segfaults in motion, but I'm not sure how to set this up for the task stuff or GUI's. -Rob I've found that a quick way to attack problems of that nature are to: 1 -- ulimit -c unlimited // enable core dumps -- I may have the command wrong. 2 -- run the application 3 -- find the core dump -- I think it will look like core.n where n is the process id of the process that crashed. It is sometimes hard to figure out which directory to look in for the core files. find is your friend. 4 -- then look at the core file using gdb -- the where command will give a traceback. Of course, if you didn't compile with -g (debug symbols), the traceback will be hard to read. [Details to be provided by the user] Ken On Fri, Jan 24, 2014 at 10:00 AM, Curtis Dutton curtd...@gmail.com wrote: It has not happened to me again. It was a one time thing so far. When I'm working with the machine, I copy down .ngc files to a folder on the cnc controller machine. Then run through them. Often I delete these files at the end of working with the cnc. I may have left the file open in Axis, deleted them from the computer, ran my toolchange program, and when it finished... bang! On the older 2.5 version this would just freeze axis occasionally. I'm wondering if the beta branch has different code that faults instead of freezes axis. On Wed, Jan 22, 2014 at 9:28 PM, Jon Elson el...@pico-systems.com wrote: On 01/22/2014 02:04 PM, Sebastian Kuzminsky wrote: Oh, signal 11! I know that one. It can be caused by bad memory or cache. The OP might want to run the memtest86 that at least used to be included on the live CD. Jon -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
[Emc-developers] circular arc blend beta: milltask (pid 6660) died on signal 11.
Does anyone know what may have caused this? So I'm running the circular arc blend beta from Roberts github repository. I'm running a build based on commit 8acb5e68a4e9c03b191555f912de53e639576dec I'm not sure if this is related to circular arc blend or just latest linuxcnc master code. Attached is the backtrace. I was running a call (in the command window) o tool_change call which is a simple program to touch a tool probe after a manual change. It had just finished that subroutine when milltask died. Attached is the backtrace. Thanks, Curtis backtrace.6660 Description: Binary data -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
Re: [Emc-developers] circular arc blend beta: milltask (pid 6660) died on signal 11.
On 1/22/14 11:33 , Curtis Dutton wrote: Does anyone know what may have caused this? So I'm running the circular arc blend beta from Roberts github repository. I'm running a build based on commit 8acb5e68a4e9c03b191555f912de53e639576dec I'm not sure if this is related to circular arc blend or just latest linuxcnc master code. Attached is the backtrace. I was running a call (in the command window) o tool_change call which is a simple program to touch a tool probe after a manual change. It had just finished that subroutine when milltask died. Attached is the backtrace. Please open a bug against 2.6 in the tracker for this (include the backtrace and your tool_change.ngc file): http://sf.net/p/emc/bugs Is the problem repeatable? Were you doing anything weird like moving or editing the tool_change.ngc file, or maybe a file it was calling, while running? There's definitely some sketchy file handling code in master, in interp_o_word.c's execute_return() function. Not sure if that's related to this segfault or just innocently located near where the problem happened. Looks like Michael was there last, would you mind taking a look? I'm thinking specifically of the unchecked file re-opening logic just before this segfault. -- Sebastian Kuzminsky -- CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431iu=/4140/ostg.clktrk ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
