BSOD 29 (NO_SPIN_LOCK_AVAILABLE): causes and diagnosis

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The kernel could not obtain a required spin-lock resource.

Could be also:
Constant	Type	OS
ERROR_WRITE_FAULT	Win32 error	Windows
KERN_INVALID_OBJECT	Kern return	Mac
ippStsWrongIntersectROI	Intel Ipp Status	Any
ESPIPE	errno	Any

NO_SPIN_LOCK_AVAILABLE

Spin-lock resource availability failure

NO_SPIN_LOCK_AVAILABLE is bug check code 0x0000001D. This old bug check indicates that a required spin-lock resource was not available when the kernel needed it. It is most meaningful when the stack points at low-level synchronization, interrupt, or legacy resource-management code.

How to read it in a dump

Use the stack to identify whether the problem is driver synchronization, interrupt handling, or corrupted lock state.
Treat the name as a low-level kernel resource failure, not as a normal allocation error.
Pool corruption can make a valid lock appear unavailable.

What to check

Audit spin-lock allocation and lifetime in suspect drivers.
Check whether the lock object resides in nonpaged memory as required.
Use special pool and verifier when lock memory corruption is plausible.

References

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