BSOD 112 (SESSION4_INITIALIZATION_FAILED): causes and diagnosis

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: SESSION4_INITIALIZATION_FAILED

Could be also:
Constant	Type	OS
ERROR_DISK_FULL	Win32 error	Windows
EHOSTDOWN	errno	Linux
EINPROGRESS	errno	Windows
SOFT_RESTART_FATAL_ERROR	BugCheck Code	Windows

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SESSION3_INITIALIZATION_FAILED	SESSION5_INITIALIZATION_FAILED

SESSION4_INITIALIZATION_FAILED

SESSION4_INITIALIZATION_FAILED uses bug-check value 0x70. The Microsoft reference states that parameter 1 contains the NTSTATUS responsible for the initialization failure; the three later parameters are zero.

The status is the portable public subreason

Microsoft does not publish a separate table of SESSION4 stages or parameter-specific flags. Decode the first argument and follow the code path that evaluated or returned that status. Assigning meanings to parameters 2-4 would contradict the documented contract.

Avoid a Terminal Services false lead

The numeral in SESSION4 is part of the bug-check family name. It is not evidence that Windows session ID 4, a particular logged-on user, or a fourth Remote Desktop connection failed. Use the dump's current process, thread, and stack if session-management code is actually involved.

References

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