Hey Michael, all,
On Fri, Mar 29, 2019 at 12:44 AM Michael Meeks <michael.meeks@xxxxxxxxxxxxx> wrote:
Hi Markus,
On 28/03/2019 16:13, Markus Mohrhard wrote:
> so in general the fastest way to get some feedback might be to ping me
> directly and give me some time to look into such issues. While I still
> have quite bad internet and can't do any uploads of symbol information I
> can still at least quickly inspect the problem.
That would be wonderful ! =)
This one was caused by a missing symbol extraction after symbol upload. I could not find any reason in the log files that explains why the upload of the symbols would succeed but the unziping of the uploaded file would fail. As a result the symbol information for most of our own symbols were missing.
After a manual extraction I can see at least most of the libmerged symbols being resolved when I call minidump_stackwalk manually on the server. However, the mentioned symbol information issue still remains and in some cases where the top level stack frame is in a system library we still miss some resolved stack frames.
Regards,
Markus
> One general problem that we have is that we have no recent windows debug
> symbol information. I tried to move that service from my local machine
> to the server during the Munich hackfest but did not manage to replicate
> my setup well enough that valid symbol information are generated. Sadly
> this has some knock-on effects as can be seen by some of the unresolved
> crash reports. At least on Windows getting a backtrace requires that
> enough of the stack pointers can be guessed from the dumped stack. This
> relies to some to degree on the system symbol informations.
Interesting.
> As soon as I have a non-mobile internet connection again I'll either run
> a full set of system symbol download on my machine or finish the work on
> moving that service to the server.
Much appreciated ! our top crasher is (obviously) the one without any
symbol information that lurks in libmerged currently ;-)
Regards,
Michael.
--
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