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| singham | I face the following strange error building nextpnr for hx8k on RPI3 | 14:31 |
|---|---|---|
| singham | . | 14:31 |
| singham | Reaping winning child 0x55a6e38f60 PID 2448 Live child 0x55a6e38f60 (ice40/chipdb/chipdb-8k.bba) PID 2450 Killed Reaping losing child 0x55a6e38f60 PID 2450 make[2]: *** [ice40/CMakeFiles/chipdb-ice40-bbas.dir/build.make:75: ice40/chipdb/chipdb-8k.bba] Error 137 Removing child 0x55a6e38f60 PID 2450 from chain. Reaping losing child 0x55c41ab000 PID 2447 make[1]: *** [CMakeFiles/Makefile2:255: ice40/CMakeFiles/chipdb-ice40-bbas.dir/all] Er | 14:32 |
| singham | . | 14:32 |
| singham | Above is output of "make -d" | 14:32 |
| gatecat | probably running out of memory | 14:32 |
| singham | So what should I do? | 14:32 |
| singham | RPI3 has 1GB RAM | 14:33 |
| tnt | exactly ... too low | 14:33 |
| singham | :( | 14:33 |
| gatecat | if you don't care about building it yourself, get it from https://github.com/YosysHQ/oss-cad-suite-build/releases/tag/2022-12-21 | 14:33 |
| singham | Thanks. How much RAM does it typically need? | 14:35 |
| singham | Can I have swap. Then I can build it right? | 14:35 |
| tnt | Sure ... it'll take you a few days, but it'll work. | 14:38 |
| singham | :P | 14:38 |
| singham | How much RAM does it use? | 14:38 |
| tnt | I think 3-4G assuming no parallel build. | 14:38 |
| singham | Then I should have just 3GB swap | 14:39 |
| tnt | I would most definitely err on the side of caution and use _more_ swap than needed. | 14:39 |
| tnt | It'll also completely trash the sdcard with tons on rewrite cycles so make sure it's a good quality one that will survive that pounding. | 14:40 |
| singham | :P. Just joking. I'll see cross compiling. | 14:40 |
| singham | But what takes so much RAM?! | 14:41 |
| singham | 3-4GB is way too much! | 14:41 |
| tnt | the bba building use some python script to build the db ... it's "easy" to do in python but eats ram like crazy. | 14:41 |
| tnt | Feel free to rewrite it better. | 14:41 |
| singham | bba means? | 14:42 |
| tnt | some custom thing used here to represent the fpga db. | 14:42 |
| tnt | There is some way to not build it and use pre-made ones, also worth looking into. | 14:42 |
| tnt | Not sure how well that option is documented. | 14:43 |
| singham | Checked core. bba is BinaryBlobAssembler | 14:46 |
| singham | It seems that it is kept in memory and appended I guess with blob. | 14:47 |
| singham | Building just for hx8k shouldn't consume that much right! | 14:47 |
| singham | RAM | 14:47 |
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| singham | What commands should I give to chipdb.py to test it | 15:08 |
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