Messages in this thread | | | Date | Sun, 10 Dec 2006 17:30:14 -0800 | From | walt <> | Subject | Re: 2.6.19-rc6-mm2 hangs when gdb is run on a multithread program |
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Jeremy Fitzhardinge wrote: > Pedro Larroy Tovar wrote: >> Hi >> >> I can reproduce a crash with 2.6.19-rc6-mm2 triggered when debugging a >> program with gdb that uses pthreads. No oops or anything strange seems >> to be printed by the kernel, but the box appears to stop doing disk IO.
> Hm, I wonder if this is related walt's problem running things under gdb?
Jeremy, I redid my git-bisect from scratch and came up with a different commit for the gdb breakage:
commit f95d47caae5302a63d92be9a0292abc90e2a14e1 Author: Jeremy Fitzhardinge <jeremy@goop.org> Date: Thu Dec 7 02:14:02 2006 +0100 [PATCH] i386: Use %gs as the PDA base-segment in the kernel
This commit is the one which causes gdb to halt with this error no matter what executable I try to run: Warning: Cannot insert breakpoint -2. Error accessing memory address 0xd74b: Input/output error.
I tried to git-revert just this one commit, but I get merge conflicts I don't how to resolve.
BTW, I just discovered tons of kernel debugging config options which were turned off -- I just turned several of them on. Maybe I can give you better info now. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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