[Sbcl-devel] gencgc unithread: interrupt nesting limit exceeded

[<me...@ho...>]

The signal fixes brought another problem to the surface: gencgc alloc floods 
the system with interrupts when SUB-GC allocates or after a gc triggered in a 
WITHOUT-GCING form. I think cheney gc does not have this problem as it clears 
the gc trigger before invoking the gc.

Surprisingly only the non-threaded builds failed when exceeding the maximum 
interrupt nesting depth. Threaded builds did not trip over simply because the 
with-mutex form in sub-gc protected them from consing.

Gabor