Opened 9 years ago

Closed 9 years ago

#10179 closed Patch - Feature (Won't Fix)

[PATCH] Produce a core dump file on error in mythfront/backend

Reported by: Lawrence Rust <lvr@…> Owned by:
Priority: minor Milestone: unknown
Component: MythTV - General Version: Unspecified
Severity: medium Keywords: core backtrace
Cc: Ticket locked: no

Description

Enabling a coredump after a SEGV or similar fault enables a post mortem backtrace to be obtained with gdb, which can be useful in debugging rare problems. See 'man 5 core' for coredump naming etc. See 'man gdb' and search for core

Attachments (1)

coredump.patch​ (1.6 KB) - added by Lawrence Rust <lvr@…> 9 years ago.

Download all attachments as: .zip

Change History (2)

Changed 9 years ago by Lawrence Rust <lvr@…>

Attachment: coredump.patch​ added

comment:1 Changed 9 years ago by danielk

Resolution: → Won't Fix
Status: new → closed

It's bad form to enable core dumps within an application. It's easy enough to enable this with ulimit in the startup script, and there you can also set the core pattern so all cores go to a single location that isn't likely to fill up and have knock on effects like crashing your mysql tables. 

ulimit -c unlimited
echo 1 > /proc/sys/kernel/core_uses_pid
echo "/cores/core.%t.%u.%p.%e" > /proc/sys/kernel/core_pattern
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