Address a failure in linker_load_module (sys/kern/kern_linker.c) to
verify that an already-loaded module matches the version requirement,
which caused the method to return the error (EEXIST). This was then
propagated back up to kldload, which incorrectly printed that the module
had already been loaded.
Add a lookup to modlist_lookup2 to distinguish between the two cases:
- A module is already loaded that is of the correct version, so the
error EEXIST should be returned
- An already-loaded module is of the incorrect version, so the error
ENOEXEC is returned (changed from ENOENT)
Reviewed by: imp, kib
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D57002
Add EXTERR_CAT_HWPMC_IBS to the external error categories and replace generic
EINVAL returns in ibs_allocate_pmc() with EXTERROR() calls that provide
detailed error messages.
This will be augmented with additional cases in the near future.
Reviewed by: mhorne
Sponsored by: AMD
Signed-off-by: Andre Silva <andasilv@amd.com>
Pull Request: https://github.com/freebsd/freebsd-src/pull/2134
For now, just describe the error where an unprivileged user attempts to
run a VM without DESTROY_ON_CLOSE semantics, i.e., monitor mode.
Reviewed by: bnovkov
MFC after: 2 months
Sponsored by: The FreeBSD Foundation
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D54743
Jim Huang Chen