John, thanks for the reply!
Actually, that was run with track-origins. I seem to recall a few years ago it
gave more detail than it is now. This is 3.15, latest released version.
I wish I could debug into those Oracle libraries, it would make it a lot easier
to track what it's complaining about.
I asked about bogus error messages because I saw a comment in the user doc
about sometimes Valgrind produces erroneous messages, and I was hoping to find
out if this might be one of them, given the difficulty of tracking down
whatever the complaint is about. ☹
Fred
> -----Original Message-----
> From: John Reiser <jrei...@bitwagon.com>
> Sent: Saturday, September 14, 2019 11:20 PM
> To: valgrind-users@lists.sourceforge.net
> Subject: Re: [Valgrind-users] seemingly bogus error reports
>
> >> ==00:00:00:11.329 1533== Conditional jump or move depends on
> >> uninitialised value(s)
> >> ==00:00:00:11.329 1533== at 0x7B0BCC2: ttci2n (in
> >> /home/interface/interface/oralib-12/lib/libclntsh.so.12.1)
> [[snip]]
> >> ==00:00:00:11.329 1533== Uninitialised value was created by a stack
> >> allocation
> >> ==00:00:00:11.329 1533== at 0x407C67: HS_send2HS
> >> (HS_thr_out.c:231)
>
> >> The problem with that report is that line 231 contains no explicit code:
> >> static HS_IF_STATE HS_send2HS (HS_out_thread * myoutthr,
> [[snip]]
> >> { ç line 231
>
> >> I can’t find anything that’s allocated in that function that would be
> >> un-initialized later in the program,
>
> As David Chapman replied earlier, then line 231 is the place where the
> compiler constructed the stack frame.
>
> Some local variable might be the destination of an assignment or copy from
> an uninit variable. In order to help find this, then re-run with the valgrind
> command-line option
> --track-origins=yes
> which should give more information about the provenance of the uninit
> value.
>
>
>
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