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PR/54618 CVS commit: src/sys/kern
The following reply was made to PR kern/54618; it has been noted by GNATS.
From: "Kamil Rytarowski" <kamil%netbsd.org@localhost>
Subject: PR/54618 CVS commit: src/sys/kern
Date: Tue, 15 Oct 2019 13:59:57 +0000
Module Name: src
Committed By: kamil
Date: Tue Oct 15 13:59:57 UTC 2019
Remove the short-circuit lwp_exit() path from sigswitch()
sigswitch() can be called from exit1() through:
lwp_exit() called for the last LWP triggers exit1() and this causes a panic.
The debugger related signals have short-circuit demise paths in
eventswitch() and other functions, before calling sigswitch().
This change restores the original behavior, but there is an open question
whether the kernel crash is a red herring of misbehavior of ttywait().
This should fix PR kern/54618 by David H. Gutteridge
To generate a diff of this commit:
cvs rdiff -u -r1.372 -r1.373 src/sys/kern/kern_sig.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
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