You receive the following Stop error message on a computer that is running Windows Server 2008 R2 or Windows 7:
0x00000019 (00000021, parameter2, parameter3, parameter4) BAD_POOL_HEADER
This behaviour occurs when you change the Internet SCSI (iSCSI) configurations on the computer and you retrieve some iSCSI connection statistics by using Windows Management Instrumentation(WMI).
The iSCSI driver (Msiscsi.sys) does not manage allocated pool space correctly. This behaviour leads to pool corruption. Therefore, when the corrupted pool is accessed, the system triggers the stop code 0×00000019.
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