Common Crashes

Common crashes and what they mean.

unrecognized selector sent to instance 0x8000000000000000

At first glance, the crash log will read like you tried to access an object that had already been deallocated. However, the giveaway is that 0x8000000000000000 address. This suspicious address tells you that you have a concurrent write bug. Somewhere, you have a race condition with multiple threads writing to the exact same address at the same time.

Last updated: 2020-06-07 16:24:37 -0700