Using constrained existential type in MultiThreadDictionary does not work in release builds on iOS 15 #178

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shadowfacts · 2022-10-08T14:55:26Z

shadowfacts commented

2022-10-08 14:55:26 +00:00

I'm not sure why this is happening, as far as I can tell my wrapper is fine.

I'm also not sure why the crash happens in "outlined init with copy of CacheEntry?"

Once we target iOS 16, we can switch to using OSAllocatedUnfairLock only.

I'm not sure why this is happening, as far as I can tell my wrapper is fine. I'm also not sure why the crash happens in "outlined init with copy of CacheEntry?" Once we target iOS 16, we can switch to using OSAllocatedUnfairLock only.

Tusker-crash-2022-10-07T18:20:14Z.crash

121 KiB

shadowfacts added the

bug

label 2022-10-08 14:55:26 +00:00

shadowfacts referenced this issue from a commit

2022-10-08 15:45:15 +00:00

Use mutex on iOS 15 instead of os_unfair_lock

shadowfacts commented

2022-10-10 01:27:55 +00:00

not related to the unfair lock, still happens with NSLock

reproable on ios 15 devices, in release mode, on the instance selector screen

not related to the unfair lock, still happens with NSLock reproable on ios 15 devices, in release mode, on the instance selector screen

shadowfacts changed title from ~~segv_accer with os_unfair_lock wrapper on iOS 15~~ to Using constrained existential type in MultiThreadDictionary does not work in release builds on iOS 15

2022-10-10 01:50:30 +00:00

shadowfacts commented

2022-10-10 01:50:38 +00:00

This is a compiler bug:

https://github.com/apple/swift/issues/61403

This is a compiler bug: https://github.com/apple/swift/issues/61403

shadowfacts referenced this issue from a commit

2022-10-10 02:02:20 +00:00

Fix MultiThreadDictionary crash on iOS 15 due to using existential types

shadowfacts added the

external

label 2022-10-28 03:13:30 +00:00