Bug #9409: Crash dumps cannot be saved when RAM disks are enabled for /var - pfSense - pfSense bugtracker

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Bug #9409

closed

Crash dumps cannot be saved when RAM disks are enabled for /var

Added by Jim Pingle over 5 years ago. Updated over 5 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Jim Pingle

Category:

Operating System

Target version:

2.4.4-p3

Start date:

03/18/2019

Due date:

% Done:

100%

Estimated time:

Plus Target Version:

Release Notes:

Affected Version:

All

Affected Architecture:

All

Description

When a system has RAM disks enabled for /var, the /var/crash directory is missing at bootup when the OS attempts to save crash dumps. As such, the dumps cannot be saved.

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Updated by Jim Pingle over 5 years ago

Status changed from New to Feedback
% Done changed from 0 to 100

Applied in changeset b39d615394eabd2d19afef0936219c609ef602e3.

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Updated by Jim Pingle over 5 years ago

Target version changed from 2.5.0 to 2.4.4-p3

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Updated by Constantine Kormashev over 5 years ago

Tried on 2.4.4-p3. Set RAM Disk Size to 100 (enable swap) and perform sysctl debug.kdb.panic=1, /var/crash contains dump:

ls -lh /var/crash/
total 116
-rw-r--r--  1 root  wheel     2B May 14 18:26 bounds
-rw-------  1 root  wheel   519B May 14 18:26 info.0
lrwxr-xr-x  1 root  wheel     6B May 14 18:26 info.last -> info.0
-rw-------  1 root  wheel   105K May 14 18:26 textdump.tar.0
lrwxr-xr-x  1 root  wheel    14B May 14 18:26 textdump.tar.last -> textdump.tar.0

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