Re: [PATCH 1/4] coredump: add an interface to control the core dumproutine

[Andrew Morton]

On Thu, 29 Mar 2007 20:16:59 +0100
David Howells <dhowells@xxxxxxxxxx> wrote:

> Pavel Machek <pavel@xxxxxx> wrote:
> 
> > > Userland core dumper is useful because it is relatively easy to be
> > > customized, but its reliability highly depends on the application
> > > programs.
> > 
> > Fix userland core dumper to be reliable, then.
> 
> I don't think it's that easy.  The userland core dumper, as I understand it,
> has to work *within* an application program (it's a library), thus the
> application program my scotch the core dumper in a couple of ways:

That's no longer necessarily true with the recently-added
dump-to-an-application feature:

core_pattern:
  ...
. If the first character of the pattern is a '|', the kernel will treat
  the rest of the pattern as a command to run.  The core dump will be
  written to the standard input of that program instead of to a file.


That's new in 2.6.20 (maybe .19?) so people probably don't know about it.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/