Linux Kernel Knowledge Triggered by Java int Type Overflow – Fixing the ip2region Bug

Linux Kernel Knowledge Triggered by Java int Type Overflow - Fixing the ip2region Bug

In xdb v4, the internal operation pointers are all using 4-byte unsigned int, with the maximum pointer value being 2^32 – 1, which means the maximum supported xdb file size is 4GiB (3.999..GiB). This is more than sufficient for the 40M open-source data, so there have been no issues in practical use until recently when … Read more

Keil MDK Upgraded to V5.42a, Fixing This Bug

Keil MDK Upgraded to V5.42a, Fixing This Bug

Recently, Keil MDK has been significantly upgraded to version V5.42, but for users in China (using the Chinese version of the Windows operating system), the first step in installation encountered difficulties, as shown in the image below: Of course, I was no exception, as I got stuck during installation (encountering a bug), and I even … Read more