On Thu, Jun 9, 2011 at 9:30 PM, John David Anglin <dave@xxxxxxxxxxxxxxxxxx> wrote: > Here is another wierd bug -- four gnat1 process stuck at exactly the > same location making zero forward progress. I have seen this a number > of times, so I thought it would be useful to report. > > As far as I can tell, all are stuck in the kernel. Gdb can't step > the code, nor do breaks on the next instruction ever get hit. This > may have something to do with the fact that the instruction is trying > to read from text (C switch statement). > > This is with 2.6.39.1 with James' last two, but I have also seen this > without the patches. Machine is rp3440. This looks like a combination of multiple bugs, the process is probably dead, or not running, which is why gdb can't do anything with it. I'm surprised the ptrace API isn't returning some more diagnostics about the stuck process. Cheers, Carlos. -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
