0:"aoc/22/i/06" causes segmentation violation on FreeBSD #72

bakul commented 2023年12月06日 04:51:01 +01:00

This seems to be a long standing problem on FreeBSD. Running 14.0. May be something to with line length?

This seems to be a long standing problem on FreeBSD. Running 14.0. May be something to with line length?

bakul commented 2023年12月06日 06:29:36 +01:00

I tracked it down to this:

#1 0x000000000023b357 in aV (t=9 '\t', n=4095, v=0x821001000) at m.c:27
27 A aV(C t,U n,O V*v)_(A x=an(n,t);MC(xV,v,(W)n*TW[t]+63>>3);x)

When n-4095, the last arg to memcpy seems to be 4102, but this is too large as a string text is being copied here (which is 4095 bytes long).

I tracked it down to this: ``` #1 0x000000000023b357 in aV (t=9 '\t', n=4095, v=0x821001000) at m.c:27 27 A aV(C t,U n,O V*v)_(A x=an(n,t);MC(xV,v,(W)n*TW[t]+63>>3);x) ``` When n-4095, the last arg to memcpy seems to be 4102, but this is too large as a string text is being copied here (which is 4095 bytes long).

ngn commented 2023年12月07日 18:18:09 +01:00

thanks. aoc/22/i/06 works now but there are still other possibly related tests that fail on freebsd, so lets keep this issue open.

thanks. `aoc/22/i/06` works now but there are still other possibly related tests that fail on freebsd, so lets keep this issue open.

bakul commented 2023年12月07日 20:12:20 +01:00

Thanks. The only other test that currently fails for me is aoc/23/04 but that is due to #!/usr/bin/env k instead of #!../../k

Thanks. The only other test that currently fails for me is aoc/23/04 but that is due to `#!/usr/bin/env k` instead of `#!../../k`

ngn commented 2023年12月08日 15:50:29 +01:00

everything should work now

funny, freebsd in virtualbox with 4 (out of 8) cpus runs ≈25% faster than the host debian

everything should work now funny, freebsd in virtualbox with 4 (out of 8) cpus runs ≈25% faster than the host debian