Bug Check 0x21: QUOTA_UNDERFLOW

The QUOTA_UNDERFLOW bug check has a value of 0x00000021. This indicates that quota charges have been mishandled by returning more quota to a particular block than was previously charged.

Important This topic is for programmers. If you are a customer who has received a blue screen error code while using your computer, see Troubleshoot blue screen errors.

QUOTA_UNDERFLOW Parameters

The following parameters are displayed on the blue screen.

ParameterDescription

1

The process that was initially charged, if available.

2

The quota type. For the list of all possible quota type values, see the header file Ps.h in the Windows Driver Kit (WDK).

3

The initial charged amount of quota to return.

4

The remaining amount of quota that was not returned.

 

 

 

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