Collecting A Memory Dump - Hitachi HF-W100E Instruction Manual

8. MAINTENANCE OPERATIONS

8.2 Collecting a Memory Dump

When one of the errors in Table 8-1 occurs, this equipment records the contents of the
system memory in a file (memory dump file). Then a blue screen appears and a STOP error
code is displayed. By analyzing the data in this memory dump file, you can investigate the
cause of the failure.
Cause
Memory dump collection by
keyboard operation
Watchdog timer timeout
Microsoft® Windows®
STOP error
(*) Depending on the conditions, such as when Windows® stops responding with a high interrupt
request level (IRQL), memory dumps may not be collected.
< NOTE >
In this equipment, the Windows® function that collects memory dumps by
keyboard operation (pressing Scroll Lock twice while holding the right Ctrl key) is
enabled. Therefore, do not perform this operation except for collecting memory
dumps.
For details about the displayed STOP error code, see "9.3 STOP Error Codes".
To select the memory dump file type, open System in Control Panel. You can select from the
following five types defined below. (In the case of Windows® Embedded Standard 7, three
types except "automatic memory dump" and "active memory dump"
・Complete memory dump(*1) : The entire contents of system memory is recorded. The boot
・Kernel memory dump
・Minimum memory dump : The minimum information necessary for identifying what caused
・Automatic memory dump : Similarly to the kernel memory dump, the kernel memory is
・Active memory dump
Table 8-1 Error That Trigger a Memory Dump
Memory dumps are collected by keyboard operation
Scroll Lock twice while holding the right Ctrl key)
Memory dumps are collected when the watchdog timer timeout
occurs.
When a fatal error occurs in the Microsoft® Windows® kernel, a
memory dump is collected.
volume (*2) must have enough free space to hold a paging
file equal to the size of the physical memory plus 1 MB.
: The kernel memory is recorded. The boot volume (*2) must have
a paging file that than the kernel memory size.
the equipment to stop is recorded. The boot volume (*2) must
have enough free space to hold a paging file of more than 2 MB.
recorded. The difference from the kernel memory dump is that
the Auto memory dump can make the initial paging file small
from the physical memory size.
: The contents of the memory assigned to a virtual machine are
filtered, and the contents of the memory used in the Hyper-V
hosts are recorded only. The active memory dump can make the
recorded memory dump file smaller than the complete memory
dump.
Description
8-6
(pressing
(*).
)