> On Mon, 06 May 2024 19:37:00 +0000, Allen Pais wrote: > > Introduce the capability to dynamically configure the maximum file > > note size for ELF core dumps via sysctl. > > > > Why is this being done? > > We have observed that during a crash when there are more than 65k mmaps > > in memory, the existing fixed limit on the size of the ELF notes section > > becomes a bottleneck. The notes section quickly reaches its capacity, > > leading to incomplete memory segment information in the resulting coredump. > > This truncation compromises the utility of the coredumps, as crucial > > information about the memory state at the time of the crash might be > > omitted. > > > > [...] > > I adjusted file names, but put it in -next. I had given some confusing > feedback on v3, but I didn't realize until later; apologies for that! The > end result is the sysctl is named kernel.core_file_note_size_limit and > the internal const min/max variables have the _min and _max suffixes. > > Applied to for-next/execve, thanks! > > [1/1] fs/coredump: Enable dynamic configuration of max file note size > https://git.kernel.org/kees/c/81e238b1299e > I should have put some thought into the feedback. Thank you for reviewing and fixing the patch. -- - Allen
