Author: markj
Date: Sat Jan 14 22:16:03 2017
New Revision: 312199
URL: https://svnweb.freebsd.org/changeset/base/312199
Log:
Stop the scheduler upon panic even in non-SMP kernels.
This is needed for kernel dumps to work, as the panicking thread will call
into code that makes use of kernel locks.
Reported and tested by: Eugene Grosbein
MFC after: 1 week
Modified:
head/sys/kern/kern_shutdown.c
Modified: head/sys/kern/kern_shutdown.c
==============================================================================
--- head/sys/kern/kern_shutdown.c Sat Jan 14 22:16:01 2017
(r312198)
+++ head/sys/kern/kern_shutdown.c Sat Jan 14 22:16:03 2017
(r312199)
@@ -733,13 +733,13 @@ vpanic(const char *fmt, va_list ap)
CPU_CLR(PCPU_GET(cpuid), &other_cpus);
stop_cpus_hard(other_cpus);
}
+#endif
/*
* Ensure that the scheduler is stopped while panicking, even if panic
* has been entered from kdb.
*/
td->td_stopsched = 1;
-#endif
bootopt = RB_AUTOBOOT;
newpanic = 0;
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