On 04.10.21 14:02, David Hildenbrand wrote:
#1 is a preparation for improved error reporting, #2 adds support for MADV_POPULATE_WRITE, #3 cleans up the code to avoid global variables and prepare for concurrency, #4 and #5 optimize thread handling, #6 makes os_mem_prealloc() safe to be called from multiple threads concurrently and #7 makes the SIGBUS handler coexist cleanly with the MCE SIGBUS handler under Linux.Details regarding MADV_POPULATE_WRITE can be found in introducing upstream Linux commits 4ca9b3859dac ("mm/madvise: introduce MADV_POPULATE_(READ|WRITE) to prefault page tables") and eb2faa513c24 ("mm/madvise: report SIGBUS as -EFAULT for MADV_POPULATE_(READ|WRITE)"), and in the man page update [1].
Paolo, are you planning on taking this via your tree (POSIX)? Thanks! -- Thanks, David / dhildenb
