install/49903: Panic during installation on WorkPad Z50 (hpcmips) whilst uncompressing base.tgz

[Sevan%NetBSD.org@localhost,Janiyan%NetBSD.org@localhost]

>Number:         49903
>Category:       install
>Synopsis:       Panic during installation on WorkPad Z50 (hpcmips) whilst uncompressing base.tgz
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    install-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed May 13 22:55:00 +0000 2015
>Originator:     venture37%geeklan.co.uk@localhost
>Release:        NetBSD 7.0_BETA
>Organization:
>Environment:
>Description:
During the installation as base.tgz is being uncompressed, the system panics with:
stopped in pid 43.1 (tar) at 801d5434

backtrace
0xc2c11ab0: 0+801d5434 (0,0,10,803f64b0) ra 0 sz 0
User-level: pid 43.1

ps
db_read_ptr: cannot find `allproc'


With previous snapshot, tar would generate malloc errors during untaring base.tgz.
malloc errors are also exhibited on NetBSD 6.1.5 too.
>How-To-Repeat:
Attempt installation of latest NetBSD/hpcmips snapshot
>Fix: