Hi, Earlier today I was reminded that perf syscall error handling sucks arse -- albeit not in those words.
Now I know we've had this discussion before, but nothing really happened. I think back then the suggestion was having the kernel write a string back or somesuch. The problem with a string is, its hard for machines to interpret, its English, so near impossible for some humans too. So would something simple, like an offset into the struct perf_event_attr pointing at the current field we're trying to process make sense? Maybe with negative offsets to indicate the syscall arguments? That would narrow down the 'WTF is wrong noaw' a lot I think. But then, I've not actually done a lot of userspace the last few years, so maybe I'm just dreaming things. Anybody? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
