Messages in this thread | | | Date | Wed, 30 Dec 1998 13:54:36 -0600 | From | Michael Elizabeth Chastain <> | Subject | Re: core files |
| |
Hi Albert,
> These aren't the only ways.
That's probably true.
> I think it would be good to let a crash dump handler open a device file > to get control. Before dumping core, the kernel checks for a crash dump > handler running with the same UID. If one is found, the dying process > sleeps and the crash dump handler is asked to respond.
That would remove process invocation from the kernel path.
You could do a lot of *this* in user space by having a library function set the default value for all signals, or just SIGSEGV, to a function that uses some kind of IPC, such as writing to a fifo whose name includes the uid. I wonder if it's possible to use preloading to inject that snippet of code into an existing executable without relinking it and without touching libc.
Michael Elizabeth Chastain <mailto:mec@shout.net> "love without fear"
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |