On 03/21/2014 08:32 PM, Phillip Susi wrote:
On 3/21/2014 4:17 AM, Karel Zak wrote:
The gencore command looks like a good idea, but why we need the
client-server infrastructure? At least at first glance it seems
like overkill.
Yes, the server seems pointless.
We would like to push this to one of the following packages: a)
util-linux b) coreutils c) procps-ng
d) somewhere near to gdb :-)
gdb already has such a thing; it's called gcore. Kind of makes this
work seem redundant?
Gcore attaches to the process using gdb and runs the gdb gcore command
and then detaches. In gcore the dump cannot be issued from a signal handler
context as fork() is not signal safe and moreover it is disruptive in nature as the
gdb attaches using ptrace which sends a SIGSTOP signal. Hence the gcore method
cannot be used if the process wants to initiate a self dump as well.
The following link points to a discussion regarding why not gcore.
https://lkml.org/lkml/2013/9/3/122
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