Date: Sat, 10 Nov 2018 20:33:08 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r340331 - head/sys/vm Message-ID: <201811102033.wAAKX8Q9058556@repo.freebsd.org>
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Author: markj Date: Sat Nov 10 20:33:08 2018 New Revision: 340331 URL: https://svnweb.freebsd.org/changeset/base/340331 Log: Re-apply r336984, reverting r339934. r336984 exposed the bug fixed in r340241, leading to the initial revert while the bug was being hunted down. Now that the bug is fixed, we can revert the revert. Discussed with: alc MFC after: 3 days Modified: head/sys/vm/vm_object.c Modified: head/sys/vm/vm_object.c ============================================================================== --- head/sys/vm/vm_object.c Sat Nov 10 20:26:55 2018 (r340330) +++ head/sys/vm/vm_object.c Sat Nov 10 20:33:08 2018 (r340331) @@ -2143,8 +2143,9 @@ vm_object_coalesce(vm_object_t prev_object, vm_ooffset next_size >>= PAGE_SHIFT; next_pindex = OFF_TO_IDX(prev_offset) + prev_size; - if ((prev_object->ref_count > 1) && - (prev_object->size != next_pindex)) { + if (prev_object->ref_count > 1 && + prev_object->size != next_pindex && + (prev_object->flags & OBJ_ONEMAPPING) == 0) { VM_OBJECT_WUNLOCK(prev_object); return (FALSE); }
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