Date: Sun, 4 Dec 2011 21:27:41 +0000 (UTC) From: Andriy Gapon <avg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r228265 - head/sys/kern Message-ID: <201112042127.pB4LRfN5003715@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: avg Date: Sun Dec 4 21:27:41 2011 New Revision: 228265 URL: http://svn.freebsd.org/changeset/base/228265 Log: critical_exit: ignore td_owepreempt if kdb_active is set calling mi_switch in such a context results in a recursion via kdb_switch Suggested by: jhb Reviewed by: jhb MFC after: 5 weeks Modified: head/sys/kern/kern_switch.c Modified: head/sys/kern/kern_switch.c ============================================================================== --- head/sys/kern/kern_switch.c Sun Dec 4 21:24:01 2011 (r228264) +++ head/sys/kern/kern_switch.c Sun Dec 4 21:27:41 2011 (r228265) @@ -200,7 +200,7 @@ critical_exit(void) if (td->td_critnest == 1) { td->td_critnest = 0; - if (td->td_owepreempt) { + if (td->td_owepreempt && !kdb_active) { td->td_critnest = 1; thread_lock(td); td->td_critnest--;
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201112042127.pB4LRfN5003715>