Re: [Crash-utility] [PATCH] mod: fix module object file lookup

On Fri, Sep 3, 2021 at 8:03 PM Hari Bathini <hbathini(a)linux.ibm.com <mailto:hbathini@linux.ibm.com> > wrote: On systems where vmlinux file is not under /usr/lib/debug/lib/modules directory, 'mod -s|-S' command may fail to find the module's object file with the below error: mod: cannot find or load object file for sd_mod module Fix it by trying all possible module object file extentions while searching for the object file under /usr/lib/debug/lib/modules directory. Signed-off-by: Naveen N. Rao <naveen.n.rao(a)linux.ibm.com <mailto:naveen.n.rao@linux.ibm.com> > Signed-off-by: Hari Bathini <hbathini(a)linux.ibm.com <mailto:hbathini@linux.ibm.com> > --- kernel.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/kernel.c b/kernel.c index 36fdea2..b2c8a0c 100644 --- a/kernel.c +++ b/kernel.c @@ -4796,7 +4796,18 @@ module_objfile_search(char *modref, char *filename, char *tree) sprintf(dir, "%s/%s", DEFAULT_REDHAT_DEBUG_LOCATION, kt->utsname.release); - retbuf = search_directory_tree(dir, file, 0); + if (!(retbuf = search_directory_tree(dir, file, 0))) { + switch (kt->flags & (KMOD_V1|KMOD_V2)) + { + case KMOD_V2: + sprintf(file, "%s.ko", modref); + retbuf = search_directory_tree(dir, file, 0); + if (!retbuf) { + sprintf(file, "%s.ko.debug", modref); + retbuf = search_directory_tree(dir, file, 0); + } + } + } if (!retbuf && (env = getenv("CRASH_MODULE_PATH"))) { sprintf(dir, "%s", env); Acked-by: Lianbo Jiang <lijiang(a)redhat.com <mailto:lijiang@redhat.com> >