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| author | Lyuma <xn.lyuma@gmail.com> | 2020-09-24 09:55:38 -0700 |
|---|---|---|
| committer | Lyuma <xn.lyuma@gmail.com> | 2020-10-12 08:41:13 -0700 |
| commit | 9f654b441fffa613568e30a4c53a57390be69e12 (patch) | |
| tree | 71fee2e47ec1619ae5dde392581dac1602847560 /core/command_queue_mt.cpp | |
| parent | 48e8da4aac6c2f6c56f38e2778329178b27666e7 (diff) | |
| download | redot-engine-9f654b441fffa613568e30a4c53a57390be69e12.tar.gz | |
core/command_queue_mt: Fix crash/hang when buffer fills up
This patch fixes two related issues. One is the race condition in issue #42107..
The other is a crash which happens when the reader is lapped near the end of the buffer.
Diffstat (limited to 'core/command_queue_mt.cpp')
| -rw-r--r-- | core/command_queue_mt.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/core/command_queue_mt.cpp b/core/command_queue_mt.cpp index 95fcd2c70e..a55eed5d3c 100644 --- a/core/command_queue_mt.cpp +++ b/core/command_queue_mt.cpp @@ -72,7 +72,7 @@ CommandQueueMT::SyncSemaphore *CommandQueueMT::_alloc_sync_sem() { bool CommandQueueMT::dealloc_one() { tryagain: - if (dealloc_ptr == write_ptr) { + if (dealloc_ptr == (write_ptr_and_epoch >> 1)) { // The queue is empty return false; } |