On 2023/05/13 17:06:50 +0200, Sebastien Marie <sema...@online.fr> wrote: > Hi, > > Currently, when sbcl starts, the console shows a "map stack for pid XXX > failed" > message. > > After searching a bit, sbcl is badly using sigaltstack(2) by using a > MAP_STACK > memory with RWX protection. The syscall fails with EINVAL (and a printf(9) > message is shown). > > By reducing the protection to RW (for such stack mmap allocation), sbcl is > still > functionning. > > Tested on amd64. > > Comments or OK ?
Have to admit that I'm surprised the fix is so simple. But it works! I can still run tinmop[1] -both from the repl and from the binary- which depends a discrete number of common lisp libraries and this gives me confidence about this change. ok for me Thanks! [1]: https://www.autistici.org/interzona/tinmop.html (note that sbcl runs out of memory when building ironclad, you need to try multiple times.)
