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NO_SPIN_LOCK_AVAILABLE
Spin-lock resource availability failure for NO_SPIN_LOCK_AVAILABLE
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
Dump evidence
Preserve the complete dump, the four bug-check parameters, the exact Windows build, loaded-module list, and the event timeline immediately before the stop. AllStat summarizes the condition as “this result”; that sentence identifies the failure class, while the parameters and stack determine which object, driver, processor, or subsystem instance was involved.
Analysis order
- Run WinDbg
!analyze -v, then inspect the documented meaning of each parameter instead of relying only on the probably-caused-by line. - find the earliest abnormal event: driver update, firmware change, device reset, storage error, verifier report, resource exhaustion, or application hang connected with spin / lock / available.
- keep third-party filter, security, storage, graphics, and virtualization drivers in the module inventory; removing evidence before dump analysis can obscure the responsible path.
Do not repeatedly reboot a machine affected by this result before collecting the dump and event logs. Recovery actions should follow the component identified by the stack and parameters, not merely the symbolic stop-code name.
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