EL3HLT
Linux / POSIXERRORCriticalDeviceHIGH confidence
Level 3 Halted
Production Risk
Rare; STREAMS-specific error.
What this means
EL3HLT (errno 46) is a Linux/STREAMS-specific error indicating that level 3 of a layered protocol has halted.
Why it happens
- 1STREAMS device driver level 3 has stopped operation
How to reproduce
STREAMS driver level 3 halt.
trigger — this will error
trigger — this will error
// Returned by STREAMS drivers when level 3 halts // errno = EL3HLT
expected output
Level 3 halted (EL3HLT)
Fix
Reinitialize the STREAMS device
WHEN When STREAMS device halts at level 3
Reinitialize the STREAMS device
close(fd);
fd = open("/dev/streams_device", O_RDWR);Why this works
Reopening the device resets all protocol levels.
Sources
Official documentation ↗
Linux Programmer Manual errno(3)
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