On Fri, Sep 8, 2017 at 11:01 AM, Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> It doesn't seem to happen for every exported symbol, though. Odd.
Fascinating.
Picking one file at random that shows this, I did net/ceph/mon_client.c.
The version file that gets generated for that looks like this:
__crc_ceph_monc_want_map = 0x3389a57e;
__crc_ceph_monc_got_map = 0x707f45a2;
__crc_ceph_monc_renew_subs = 0x9842030a;
__crc_ceph_monc_wait_osdmap = 0xfe38746d;
__crc_ceph_monc_open_session = 0xc9ba8a19;
__crc_ceph_monc_do_statfs = 0xe878801b;
__crc_ceph_monc_get_version = 0xfaac6ce0;
__crc_ceph_monc_get_version_async = 0x3adefe28;
__crc_ceph_monc_blacklist_add = 0xee71d0ef;
__crc_ceph_monc_init = 0xfce99654;
__crc_ceph_monc_stop = 0xb0d197d0;
__crc_ceph_monc_validate_auth = 0xce1c6d69;
and with the gperf-removal patch, it is 100% identical _except_ that
the "__crc_ceph_monc_do_statfs" line is missing.
Same hashes for everything else. But one missing line. WTF?
What is special about that one particular function vs the other ones
in that file? I have absolutely no idea.
So the really odd thing here is how things clearly still _work_. The
parser works fine for everything else. And looking at the
gprof-removal patch it's not at all obvious how everything could work
fine except for some random thing.
Strange. Does anybody see what the pattern to the failure is?
Linus
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