On 10/4/24 9:52 AM, Jeff Xu wrote: >> above is not a sentence but I don't know how to fix it. >> > Would below work ? > > Certain destructive madvise behaviors, specifically MADV_DONTNEED, > MADV_FREE, MADV_DONTNEED_LOCKED, MADV_FREE, MADV_DONTFORK, > MADV_WIPEONFORK, can pose risks when applied to anonymous memory by > threads without write permissions. These behaviors have the potential > to modify region contents by discarding pages, effectively performing > a memset(0) operation on the anonymous memory. Yes, that works. Or at least it explains the problem, like Theo said. Thanks. -- ~Randy
