[lldb-dev] LLDB kernel panic on OSX

[Andrew MacPherson]

No crash anymore on top of tree, looks good!


On Wed, Jan 8, 2014 at 7:08 PM, Greg Clayton <gclayton at apple.com> wrote:

> Try top of tree with no modifications now:
>
> % svn commit
> Sending        source/Host/macosx/Host.mm
> Transmitting file data .
> Committed revision 198776.
>
> I added dynamic OS version checking and we don't use the flag for 10.7 and
> earlier.
>
> Greg
>
>
> On Jan 8, 2014, at 12:49 AM, Andrew MacPherson <andrew.macp at gmail.com>
> wrote:
>
> > Hi Greg,
> >
> > That was exactly it, removing those lines makes the kernel panic go away.
> >
> > Thanks for the help!
> >
> > Andrew
> >
> >
> > On Wed, Jan 8, 2014 at 12:25 AM, Greg Clayton <gclayton at apple.com>
> wrote:
> > Try modifying the function in Host.mm:
> >
> > static short GetPosixspawnFlags (ProcessLaunchInfo &launch_info)
> >
> > by commenting out the following lines:
> >
> > #ifdef POSIX_SPAWN_CLOEXEC_DEFAULT
> >     // Close all files exception those with file actions if this is
> supported.
> >     flags |= POSIX_SPAWN_CLOEXEC_DEFAULT;
> > #endif
> >
> >
> > Using this flag used to cause kernel panics. Maybe it still does on
> 10.7? Let me know if this fixes things and if it does, then I will place a
> dynamic MacOSX version check for 10.8 and above.
> >
> > Greg
> >
> > On Jan 7, 2014, at 4:14 AM, Andrew MacPherson <andrew.macp at gmail.com>
> wrote:
> >
> > > Hello,
> > >
> > > I've tried building the latest LLDB + LLVM from trunk on two different
> OSX machines running Lion (10.7.5) and the resulting lldb binary seems to
> cause a kernel panic when run. I'm not an OSX developer normally so it's
> quite possible that I'm doing something wrong and I'm wondering if anyone
> has any pointers.
> > >
> > > I have tried with both clang 3.2 (the default for Xcode 4.6) as well
> as clang 3.3 from MacPorts with the following configure line:
> > >
> > > ./configure --enable-optimized --enable-assertions --enable-cxx11
> --enable-libcpp
> > >
> > > The lldb binary can be run but crashes when trying to launch a process.
> > >
> > > lldb /usr/bin/python
> > > (lldb) r
> > > <kernel panic>
> > >
> > > Any ideas are welcome.
> > >
> > > Thanks,
> > > Andrew
> > > _______________________________________________
> > > lldb-dev mailing list
> > > lldb-dev at cs.uiuc.edu
> > > http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
> >
> >
>
>
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