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Core: Difference between revisions
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* Produce a corefile for a running process with <tt>gcore</tt>(1) | |||
* The RLIMIT_CORE [[rlimit]] specifies the maximum size of a corefile (use 0 to disable corefile generation) | |||
==FreeBSD== | ==FreeBSD== | ||
* kern.corefile | * sysctl <tt>kern.corefile</tt> controls naming mechanisms. See the <tt>core(5)</tt> man page. | ||
* kern.sugid_coredump= | * sysctl kern.sugid_coredump controls whether processes with different effective and real U/GIDs produce corefiles | ||
* See savecore(8) and crashinfo(8) for further FreeBSD-specific capabilities | |||
==Linux== | |||
* /proc/sys/kernel/core_pattern allows core naming to be configured (since Linux 2.6 and 2.4.21), and corefiles to be piped to programs. See the <tt>core(5)</tt> man page. | |||
* /proc/sys/kernel/core_uses_pid controls whether the PID is appended to the corefile's name | |||
* The [[Linux APIs|prctl]] flag PR_SET_DUMPABLE allows process-specific coredump generation settings | |||
* /proc/sys/fs/suid_dumpable | |||
* /proc/PID/coredump_filter allows memory map-specific coredump generation settings | |||
Revision as of 04:18, 17 June 2009
- Produce a corefile for a running process with gcore(1)
- The RLIMIT_CORE rlimit specifies the maximum size of a corefile (use 0 to disable corefile generation)
FreeBSD
- sysctl kern.corefile controls naming mechanisms. See the core(5) man page.
- sysctl kern.sugid_coredump controls whether processes with different effective and real U/GIDs produce corefiles
- See savecore(8) and crashinfo(8) for further FreeBSD-specific capabilities
Linux
- /proc/sys/kernel/core_pattern allows core naming to be configured (since Linux 2.6 and 2.4.21), and corefiles to be piped to programs. See the core(5) man page.
- /proc/sys/kernel/core_uses_pid controls whether the PID is appended to the corefile's name
- The prctl flag PR_SET_DUMPABLE allows process-specific coredump generation settings
- /proc/sys/fs/suid_dumpable
- /proc/PID/coredump_filter allows memory map-specific coredump generation settings
