Bug #20586 how to make core dums on 2.6 kernels

• Submitted: 20 Jun 2006 19:46
• Modified: 5 Sep 2006 13:40
• Reporter: pavel stano
• Status: Duplicate
• Category: MySQL Server
• Severity: S4 (Feature request)
• Version: all
• OS: Linux (linux 2.6)
• CPU Architecture: Any

[20 Jun 2006 19:46] pavel stano

Description:
when you set core-file in my.cnf and set ulimit -c unlimited before mysql start and mysqld crash there is no core dump, because kernel after setuid() change dumpable flag of mysqld process to off
solution is easy, call prctl(PR_SET_DUMPABLE,1); after setuid() and setgid()

How to repeat:
x

[29 Jun 2006 13:26] Valeriy Kravchuk

Thank you for a feature request. There is no real need to fix code, as you can just use sysctl to set proper value for kernel.core_setuid_ok.

[5 Sep 2006 13:40] Domas Mituzas

Duplicate of Bug#21723