sysctl.d/50-coredump.conf.in

   1 #  This file is part of systemd.
   2 #
   3 #  systemd is free software; you can redistribute it and/or modify it
   4 #  under the terms of the GNU Lesser General Public License as published by
   5 #  the Free Software Foundation; either version 2.1 of the License, or
   6 #  (at your option) any later version.
   7
   8 # See sysctl.d(5) for the description of the files in this directory.
   9
  10 # Pipe the core file to systemd-coredump. The systemd-coredump process spawned
  11 # by the kernel will start a second copy of itself as the
  12 # systemd-coredump@.service, which will do the actual processing and storing of
  13 # the core dump.
  14 #
  15 # See systemd-coredump(8) and core(5).
  16 kernel.core_pattern=|@rootlibexecdir@/systemd-coredump %P %u %g %s %t %c %h
  17
  18 # Allow that 16 coredumps are dispatched in parallel by the kernel. We want to
  19 # be able to collect process metadata from /proc/%P/ while processing
  20 # coredumps, and thus need to make sure the crashed processes are not reaped
  21 # until we finished collecting what we need. The kernel default for this sysctl
  22 # is "0" which means the kernel doesn't wait for userspace processes to finish
  23 # processing before reaping the crashed processes — by setting this higher the
  24 # kernel will delay reaping until we are done, but only for the specified
  25 # number of crashes in parallel. The value of 16 is chosen to match
  26 # systemd-coredump.socket's MaxConnections= value.
  27 kernel.core_pipe_limit=16
  28
  29 # Also dump processes executing a set-user-ID/set-group-ID program that is
  30 # owned by a user/group other than the real user/group ID of the process, or
  31 # a program that has file capabilities. ("2" is called "suidsafe" in core(5)).
  32 #
  33 # systemd-coredump will store the core file owned by the effective uid and gid
  34 # of the running process (and not the filesystem-user-ID which the kernel uses
  35 # when saving a core dump).
  36 #
  37 # See proc(5), setuid(2), capabilities(7).
  38 fs.suid_dumpable=2