Stefan Monnier skrev:
it before incrementing interrupt_input_blocked in the #define for
BLOCK_INPUT fixes the bug!
Are you sure it fixes it? It may just hide it by slightly changing
the timing.
The bug occurs because revoke_input_signal is called when it should not be.
Somehow the counter used by UNBLOCK/BLOCK_INPUT gets the wrong value, becoming
negative.
By using sigblock/sigunblock we make sure that counter isn't touched, so it
fixes this particular case. However, why the counter gets the wrong value is
still not known.
Jan D.
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