What does errno 62 (ETIME) in Linux mean?

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: a STREAMS-style timer expired before the requested operation completed.

Could be also:
Constant	Type	OS
ERROR_NO_SPOOL_SPACE	Win32 error	Windows
ELOOP	errno	Mac
ETIME	errno	Solaris
MULTIPROCESSOR_CONFIGURATION_NOT_SUPPORTED	BugCheck Code	Windows

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ENODATA	ELOOP

ETIME

ETIME is the Linux errno name for “Timer expired”. In Linux error tables it is mostly a compatibility value from STREAMS/System V style interfaces, not the normal timeout used by sockets and most system calls.

If an application sees this errno, preserve the subsystem that returned it. A socket connect timeout is normally reported as ETIMEDOUT; a timed wait may use ETIMEDOUT or an API-specific status. Treating it as generic network timeout can hide the compatibility layer that actually failed.

Evidence to keep

The exact function, ioctl, or library call that returned this errno.
The timeout value configured by that layer, not just wall-clock duration.
Whether the same path can also return EAGAIN, EINTR, or ETIMEDOUT.

Linux errno(3) · Linux UAPI errno definitions

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