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| sajattack[m] | am I the only one getting a kernel panic running spisdcardboot? | 17:08 |
|---|---|---|
| somlo | works great for me booting (bbl(linux-riscv64(busybox))) on litex+rocket | 17:19 |
| sajattack[m] | post #435 and #436? | 17:19 |
| somlo | at litex commit c547b2cc (as of a few hours ago | 17:20 |
| sajattack[m] | hrm | 17:21 |
| sajattack[m] | maybe my buildroot got messed | 17:21 |
| somlo | actually, much faster than before (with the reclocking thing) | 17:22 |
| sajattack[m] | let me try the official images | 17:22 |
| somlo | not sure about buildroot -- I have busybox built into the kernel, wrapped inside BBL, as a single boot.bin file | 17:22 |
| somlo | now I need to figure out how to make the SPI-mode SDCard visible to the Linux kernel, so I can mount it once I'm done booting | 17:25 |
| somlo | I know there's "mmc_spi" to start, but no idea if it'll work out of the box or if it might need a bit of "surgery" first :) | 17:26 |
| sajattack[m] | I keep getting this https://ghostbin.co/paste/rp7p4 | 17:33 |
| tpb | Title: rp7p4 - Ghostbin (at ghostbin.co) | 17:34 |
| sajattack[m] | or some variation thereof | 17:34 |
| sajattack[m] | sometimes it says the initramfs contains junk or something | 17:34 |
| sajattack[m] | other times it kernel panics even earlier | 17:34 |
| somlo | sajattack[m]: fwiw, we're exercising different #ifdef branches of spisdcardboot(), but we both have at least one spi_sdcard_readFile() and one boot() call in there | 17:35 |
| sajattack[m] | ok | 17:36 |
| somlo | so I think those work fine for both of us. It's what happens once you jump to the data you transferred over into memory that things go south for you | 17:36 |
| sajattack[m] | yeah | 17:36 |
| sajattack[m] | memtest is ok | 17:36 |
| sajattack[m] | but maybe the sdcard is dirty somehow | 17:37 |
| somlo | could be the stuff you transfer over is already corrupted somehow, or maybe some overrun of some kind ? | 17:37 |
| somlo | I haven't played with vexriscv linux, so I don't know much about all the ways it can go wrong | 17:38 |
| sajattack[m] | it worked before reclocking | 17:39 |
| somlo | easy (if maybe a bit time consuming) would be to check out a pre-reclocking commit and build that, see if reclocking consistently breaks it for you | 17:39 |
| sajattack[m] | yeah | 17:39 |
| somlo | i.e, "git bisect" :) | 17:39 |
| somlo | then you'd have a specific commit to blame for your troubles, and a slightly smaller problem space to deal with | 17:40 |
| sajattack[m] | idk git bisect but I can git log and git checkout | 17:42 |
| somlo | sajatacc[m]: web‪chick.net/node/99 (there's many more guides if you google) | 17:43 |
| somlo | you'll love it :) | 17:43 |
| somlo | pick a commit that works, pick one that breaks, let git tell you which ones to try until you find the one that broke your stuff | 17:44 |
| sajattack[m] | cool | 17:44 |
| sajattack[m] | `2bf31a31da336b628825aced248396b8ba3e3105 is the first bad commit` | 18:10 |
| sajattack[m] | as I suspected | 18:10 |
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