Recently, we made some optimization attempts in the Native code of a specific app in our company to address performance issues. We released a gray version containing the mentioned modifications to a subset of users for evaluating the effectiveness of the optimizations. However, after the release, we observed a significant number of crash reports, and the crashes were mainly limited to 64-bit smartphones of the VIVO brand, with a few similar issues reported on Samsung phones. The crash reports indicate that the libc’s memcpy function is the source of the error, while our modifications did not involve any changes to the calling path of the memcpy function but instead focused on modifying other business logic. Can anyone provide some troubleshooting ideas?

Recently, we made some optimization attempts in the Native code of a specific app in our company to address performance issues. We released a gray version containing the mentioned modifications to a subset of users for evaluating the effectiveness of the optimizations. However, after the release, we observed a significant number of crash reports, and the crashes were mainly limited to 64-bit smartphones of the VIVO brand, with a few similar issues reported on Samsung phones. The crash reports indicate that the libc’s memcpy function is the source of the error, while our modifications did not involve any changes to the calling path of the memcpy function but instead focused on modifying other business logic. Can anyone provide some troubleshooting ideas?