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Re: Extra info in the crash reports on crash-server.com?

From: Stefan Küng <tortoisesvn_at_gmail.com>
Date: Tue, 03 Sep 2013 19:46:58 +0200

On 03.09.2013 09:43, Ivan Zhakov wrote:
> On Sat, Aug 31, 2013 at 4:33 PM, Stefan Küng <tortoisesvn_at_gmail.com> wrote:
>> On 31.08.2013 13:49, Lieven Govaerts wrote:
>>> Hi,
>>> I've been looking at the crash reports for TSVN on crash-server.com,
>>> specifically those related to the serf library.
>>> When analyzing the reports and associated dump files, I've often found
>>> that not enough information was available to correctly assess the
>>> context of when the issue occurred. The stack trace alone is not
>>> sufficient, especially because:
>>> a) the stack trace available directly on the website only shows function names
>>> b) I've noticed in the detailed stack traces that Stefan Küng sends to
>>> the svn-dev mailing list that the line numbers do not match with the
>>> source code (there is an offset).
>> If they have an offset, then most likely you don't use the exact same
>> files. Or: the files have inconsistent EOLs and the debugger then
>> calculates the line numbers wrong.
>>> c) the minidump files that I've downloaded never had function
>>> parameter or local variable values for code in the svn or serf
>>> library, at least, the values were corrupt from the point where the
>>> the code path entered the svn library.
>>> Note: for analysing the 1.8.1 minidumps I've used the 1.8.1 symbol
>>> files, so there shouldn't be a version mismatch involved.
>> You should use the exact debug symbols I used for the build. Those debug
>> symbols are stored on the crash-server.com server.
> Hi Stefan,
> I noticed that you're not using "/Oy-" (Frame-Pointer Omission) [1]
> when building serf and Subversion. This option used for default
> Subversion/serf builds. Without this option optimizing compiler
> suppresses creation of frame pointers on the call stack. And this
> makes debugging crash dumps very difficult. May be it worth to add
> "/Oy-" after "/O2" to disable frame-pointer omission to make debugging
> easier.

Will do, but that option only works for 32-bit builds. So if you're
analyzing an x64 crash dump, that option has no effect there and it
wouldn't be the reason for not enough info in the crash dump.


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Received on 2013-09-03 19:47:07 CEST

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