src/lib/libkvm, branch stable/8

MFC r362623:

2020-06-30T15:53:52+00:00

Fix copy/paste mistake in kvm_getswapinfo(3)

It seems this manpage was copied from kvm_getloadavg(3), but the
DIAGNOSTICS section was not updated completely. Update the section with
correct information about a return value of -1.

MFC r241303: kvm_getprocs: gracefully handle errors from kvm_deadprocs

2012-10-17T11:26:48+00:00

MFC r241302: kvm_proclist: ignore processes in larvae state

2012-10-14T07:55:14+00:00

MFC r235286:

2012-05-18T00:32:29+00:00

General mdoc(7) and typo fixes.

PR:		167734

MFC r230873:

2012-02-12T07:53:02+00:00

Try to avoid ambiguity when sysctl returns ENOMEM additionally
checking the returned oldlen: when ENOMEM is due to the supplied
buffer being too short the return oldlen is equal to buffer size.

Without this additional check kvm_getprocs() gets stuck in loop if the
returned ENOMEM was due the exceeded memorylocked limit. This is
easily can be observed running `limits -l 1k top'.

Submitted by:	Andrey Zonov

MFC: r214904: bring MIPS minidump support to libkvm

2011-02-18T00:02:35+00:00

Merge r204494, r204511 from head to stable/8:

2011-01-15T19:23:14+00:00

  A first cut at teaching libkvm how to deal with dynamic per-CPU storage
  (DPCPU):

  A new API, kvm_dpcpu_setcpu(3), selects the active CPU for the purposes
  of DPCPU.  Calls to kvm_nlist(3) will automatically translate DPCPU
  symbols and return a pointer to the current CPU's version of the data.
  Consumers needing to read the same symbol on several CPUs will invoke a
  series of setcpu/nlist calls, one per CPU of interest.

  This addition makes it possible for tools like netstat(1) to query the
  values of DPCPU variables during crashdump analysis, and is based on
  similar code handling virtualized global variables.

  Sponsored by:   Juniper Networks, Inc.

  Not all programs including kvm.h include the necessary headers to use
  u_int, so prefer unsigned int.

  Pointed out by: bz, kib, Mr Tinderbox

MFC r215133: amd64: introduce minidump version 2

2010-11-26T16:09:08+00:00

This should reduce size of the minidump.
Compatibility with version 1 should be preserved in libkvm.

Merge r204435 from head to stable/8:

2010-06-01T14:09:35+00:00

  Fix typo in comment.

Approved by:	re (bz)

MFC r207187: kvm(3): Mention that some of the functions use sysctl(3)

2010-05-02T12:38:59+00:00

instead of kmem.

Additionally, because of sysctl(3) use (which is generally good), behaviour
for crash dumps differs slightly from behaviour for live kernels and this
will probably never be fixed entirely, so weaken that claim.