Author: markj Date: Tue Dec 26 16:29:39 2017 New Revision: 327213 URL: https://svnweb.freebsd.org/changeset/base/327213
Log: Ensure that pass > 0 when starting a scan with vm_pages_needed == 1. Otherwise the page daemon will not reclaim pages and thus will not wake threads sleeping in VM_WAIT. Reported and tested by: pho Reviewed by: alc, kib X-MFC with: r327168 Differential Revision: https://reviews.freebsd.org/D13640 Modified: head/sys/vm/vm_pageout.c Modified: head/sys/vm/vm_pageout.c ============================================================================== --- head/sys/vm/vm_pageout.c Tue Dec 26 16:23:18 2017 (r327212) +++ head/sys/vm/vm_pageout.c Tue Dec 26 16:29:39 2017 (r327213) @@ -1836,6 +1836,8 @@ vm_pageout_worker(void *arg) */ if (vm_pages_needed) { mtx_unlock(&vm_page_queue_free_mtx); + if (pass == 0) + pass++; } else if (mtx_sleep(&vm_pageout_wanted, &vm_page_queue_free_mtx, PDROP | PVM, "psleep", hz) == 0) { _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
