Date: Mon, 23 May 2016 10:31:54 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r300489 - head/sys/kern Message-ID: <201605231031.u4NAVspJ081312@repo.freebsd.org>
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Author: hselasky Date: Mon May 23 10:31:54 2016 New Revision: 300489 URL: https://svnweb.freebsd.org/changeset/base/300489 Log: Use DELAY() instead of _sleep() when SCHEDULER_STOPPED() is set inside pause_sbt(). This allows pause() to continue working during a panic() which is not invoking KDB. This is useful when debugging graphics drivers using the LinuxKPI. Obtained from: kmacy @ MFC after: 1 week Modified: head/sys/kern/kern_synch.c Modified: head/sys/kern/kern_synch.c ============================================================================== --- head/sys/kern/kern_synch.c Mon May 23 09:44:06 2016 (r300488) +++ head/sys/kern/kern_synch.c Mon May 23 10:31:54 2016 (r300489) @@ -327,7 +327,7 @@ pause_sbt(const char *wmesg, sbintime_t if (sbt == 0) sbt = tick_sbt; - if (cold || kdb_active) { + if (cold || kdb_active || SCHEDULER_STOPPED()) { /* * We delay one second at a time to avoid overflowing the * system specific DELAY() function(s):
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