Bezüglich Conrad Meyer's Nachricht vom 28.04.2017 20:25 (localtime): > Author: cem > Date: Fri Apr 28 18:25:10 2017 > New Revision: 317567 > URL: https://svnweb.freebsd.org/changeset/base/317567 > > Log: > x86 MCA: Fix a deadlock in MCA exception processing > > In exceptional circumstances, an MCA exception will trigger when the > freelist is exhausted. In such a case, no error will be logged on the list > and 'mca_count' will not be incremented. > > Prior to this patch, all CPUs that received the exception would spin > forever. > > With this change, the CPU that detects the error but finds the freelist > empty will proceed to panic the machine, ending the deadlock. > > A follow-up to r260457. > > Reported by: Ryan Libby <rlibby at gmail.com> > Reviewed by: jhb@ > Sponsored by: Dell EMC Isilon > Differential Revision: https://reviews.freebsd.org/D10536 > > Modified: > head/sys/x86/x86/mca.c
Does anybody want to MFC this one before 11.2? Thanks, -harry _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
