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thread: Ignore errors when copying out during thr_exit()

Description

thread: Ignore errors when copying out during thr_exit()

It does not seem reasonable to return to userspace after calling
umtx_thread_exit().

This is in preparation for annotating copyin() and related functions
with __result_use_check.

Reviewed by: olce, kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D43143

Details

Provenance
markjAuthored on Dec 26 2023, 1:42 AM
Reviewer
olce
Differential Revision
D43143: thread: Ignore errors when copying out during thr_exit()
Parents
rGabbc260f74b2: jail: Ignore errors from copyout() while copying the error string
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