On 24 June 2016 at 10:21, Craig Ringer <cr...@2ndquadrant.com> wrote:
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> * To get a backtrace, I had to: > > * Launch a VS x86 command prompt > * devenv /debugexe bin\initdb.exe -D test > * Set a breakpoint in initdb.c:3557 and initdb.c:3307 > * Run > * When it traps at get_restricted_token(), manually move the execution > pointer over the setup of the restricted execution token by dragging & > dropping the yellow instruction pointer arrow. Yes, really. Or, y'know, > comment it out and rebuild, but I was working with a supplied binary. > * Continue until next breakpoint > * Launch process explorer and find the pid of the postgres child process > * Debug->attach to process, attach to the child postgres. This doesn't > detach the parent, VS does multiprocess debugging. > * Continue execution > * vs will trap on the child when it crashes > > Also, to save anyone else this hassle, I have saved a process dump (windows core file) and the debug symbols to gdrive. You can get them at: Note that you will need a Visual Studio version installed. VS Community 2015 works fine. You only need to install the C++ devenv and C++ headers, you don't need MFC or any of the rest. The default install is fine if you don't mind a bigger download. Once installed, open postgres.dmp, then go to debug->options, symbols. There, enable the Microsoft Symbol Server, and also add a new entry for the absolute path to the symbols directory for the archive you unpacked. You should enable the symbol cache directory too, make a directory in your user dir and put it there. If Haroon shared some gdrive links earlier on the thread I don't have access to, this is the same data just efficiently compressed (32MB instead of 180MB) and packaged up in a single convenient archive with the matching sources and a full working install. You'll need 7zip to unpack it, but that should be on your "install as soon as you install Windows" list anyway. https://drive.google.com/open?id=0B7JKjZdzBUo1aE5DQnZ5VEpBUEk -- Craig Ringer http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
