mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-11-25 23:36:16 +02:00
7434caca05
This fixes a segfault on infinite function call recursion (rather than
infinite thunk recursion) by tracking the function call depth in
`EvalState`.
Additionally, to avoid printing extremely long stack traces, stack
frames are now deduplicated, with a `(19997 duplicate traces omitted)`
message. This should only really be triggered in infinite recursion
scenarios.
Before:
$ nix-instantiate --eval --expr '(x: x x) (x: x x)'
Segmentation fault: 11
After:
$ nix-instantiate --eval --expr '(x: x x) (x: x x)'
error: stack overflow
at «string»:1:14:
1| (x: x x) (x: x x)
| ^
$ nix-instantiate --eval --expr '(x: x x) (x: x x)' --show-trace
error:
… from call site
at «string»:1:1:
1| (x: x x) (x: x x)
| ^
… while calling anonymous lambda
at «string»:1:2:
1| (x: x x) (x: x x)
| ^
… from call site
at «string»:1:5:
1| (x: x x) (x: x x)
| ^
… while calling anonymous lambda
at «string»:1:11:
1| (x: x x) (x: x x)
| ^
… from call site
at «string»:1:14:
1| (x: x x) (x: x x)
| ^
(19997 duplicate traces omitted)
error: stack overflow
at «string»:1:14:
1| (x: x x) (x: x x)
| ^
44 lines
1.2 KiB
Text
44 lines
1.2 KiB
Text
error:
|
|
… from call site
|
|
at /pwd/lang/eval-fail-duplicate-traces.nix:9:3:
|
|
8| in
|
|
9| throwAfter 2
|
|
| ^
|
|
10|
|
|
|
|
… while calling 'throwAfter'
|
|
at /pwd/lang/eval-fail-duplicate-traces.nix:4:16:
|
|
3| let
|
|
4| throwAfter = n:
|
|
| ^
|
|
5| if n > 0
|
|
|
|
… from call site
|
|
at /pwd/lang/eval-fail-duplicate-traces.nix:6:10:
|
|
5| if n > 0
|
|
6| then throwAfter (n - 1)
|
|
| ^
|
|
7| else throw "Uh oh!";
|
|
|
|
… while calling 'throwAfter'
|
|
at /pwd/lang/eval-fail-duplicate-traces.nix:4:16:
|
|
3| let
|
|
4| throwAfter = n:
|
|
| ^
|
|
5| if n > 0
|
|
|
|
… from call site
|
|
at /pwd/lang/eval-fail-duplicate-traces.nix:6:10:
|
|
5| if n > 0
|
|
6| then throwAfter (n - 1)
|
|
| ^
|
|
7| else throw "Uh oh!";
|
|
|
|
… while calling 'throwAfter'
|
|
at /pwd/lang/eval-fail-duplicate-traces.nix:4:16:
|
|
3| let
|
|
4| throwAfter = n:
|
|
| ^
|
|
5| if n > 0
|
|
|
|
error: Uh oh!
|