On Mon, 2008-06-23 at 13:22 -0400, Colin Walters wrote: > Breakpad: Used by Firefox and various Google applications. Based on a > shared library linked into processes which catches SIGSEGV and submits > a report via HTTP. > Format: http://code.google.com/p/google-breakpad/wiki/ProcessorDesign > One nice thing is that Mozilla has a lot of investment in a free > software scalable processing server called "Socorro": > http://code.google.com/p/socorro > > GNOME is using breakpad/socorro and has a server up: > http://blogs.gnome.org/ovitters/2007/10/06/crash-gnome-org/ > They were prototyping it using Fedora, and I believe bug-buddy which > is linked into all GTK+ programs uses breakpad and sends to > crash.gnome.org by default. > > * Possibly replace breakpad library linking by using utrace+system > service (right?) If I remember right, the reason for this part of the discussion was: 1) Linking everything on the system to breakpad is a bit nasty. 2) Apport doesn't need to be linked in, but it runs *after* the process gets dumped by the kernel. At which point it's slightly different from when it actually crashed. pjones' idea was to have a system service that would receive notification of segfaults and use utrace to stop the process and generate a (breakpad-style report). > * Create debuginfo DAV server and pull debuginfo data dynamically > (what are the download requirements? does this replace gdb's > "debuginfo-install" display?) It would make the 'debuginfo-install' message go away, because (if DAV + FUSE does the right thing) you'll have all the debuginfo you need, in the right place - mounted as a FUSE filesystem. It requires some trickery with the web server to keep from *actually* unpacking all the debuginfo packages in existence (something like ~5T of data?) but Peter was working on a proof-of-concept at FUDCon. > My 2¢ - Link in breakpad, create http://crash.fedoraproject.org > running Socorro. Link it into what? Everything, via LD_PRELOAD? Or just GNOME stuff? I thought bug-buddy already used breakpad? Oh, and don't forget that we need the debuginfo server (which I think Peter has been calling "littlebottom" to make these reports useful. > Investigate either submitting reports to Mozilla as well for Firefox > or create a system where our Socorro pushes reports to theirs. The latter seems like the Right Thing, but it depends on the previous actions. I wonder how caillon would feel about getting Firefox doing reports to Mozilla in the meantime. > Longer term investigate utrace system service instead of having apps > link to breakpad (this gets us non-desktop system crashes without > having to universally LD_PRELOAD or whatever). Yeah, I don't think we need to solve this until we've got the proof-of-concept stack: a couple of choice apps sending Breakpad reports (with debuginfo fetched from littlebottom) to our own Socorro instance. -w
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