From owner-freebsd-hackers@freebsd.org Thu Sep 24 03:04:21 2015 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D9B8DA06B04 for ; Thu, 24 Sep 2015 03:04:21 +0000 (UTC) (envelope-from gsuryacse7k@gmail.com) Received: from mail-vk0-x236.google.com (mail-vk0-x236.google.com [IPv6:2607:f8b0:400c:c05::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id A477B1948 for ; Thu, 24 Sep 2015 03:04:21 +0000 (UTC) (envelope-from gsuryacse7k@gmail.com) Received: by vkao3 with SMTP id o3so39903067vka.2 for ; Wed, 23 Sep 2015 20:04:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=IgW5Y9cPy2640zCzhpmQBaIjnfPUQ+rI2R1HdQNX4FY=; b=Uo+p6p8FBVYmXUCxPOAKlZ+Wb1RZqGB67t8Ia4/U5mC1Vwn/AfNPpXIpN+k0SNt3fN LkMbb5g0hN+2xkcDXxNvRy1lFkLGnUvXS6ATNJgo1G/oTscDHrsENzSVeb70sT1WNE69 5cB3Rrza9Ob04+zAgvaqT6Gsew8fC2AfTsbgo6EO1iZA2iJ/mliR3YbR9/Zx8dLyYIVO Kh6L66/S8d3BRjUioTUl7NwPfnHOqcPzR46Ic20Q87nkAfbKDeOcCxXGeT5x/6O79Wiv eDu6/jbTUxTyBHw4zQiZBTAKawF4bwA3ESwVtsQthtvHMSo6DWztCYaU0Wo5t39X1sqd 2GEQ== MIME-Version: 1.0 X-Received: by 10.31.49.67 with SMTP id x64mr25021269vkx.133.1443063859851; Wed, 23 Sep 2015 20:04:19 -0700 (PDT) Received: by 10.103.26.3 with HTTP; Wed, 23 Sep 2015 20:04:19 -0700 (PDT) Date: Wed, 23 Sep 2015 23:04:19 -0400 Message-ID: Subject: system map mutex and zone mutex witness warning From: suresh gumpula To: "freebsd-hackers@freebsd.org" X-Mailman-Approved-At: Thu, 24 Sep 2015 03:50:51 +0000 Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Sep 2015 03:04:22 -0000 Hi, I am seeing the following witness warning while booting on 8.1. Is it a known issue and resolved in later kernels ? Can somebody please comment on this ? isitmychild: rmatrix mismatch between system map (index 43) and UMA zone (index 57): w_rmatrix[43][57] == 1 but w_rmatrix[57][43] == 0 KDB: stack backtrace: kdb_backtrace() at kdb_backtrace+0x3e witness_line() at witness_line+0xca4 witness_line() at witness_line+0xcf9 witness_releaseok() at witness_releaseok+0x1623 witness_checkorder() at witness_checkorder+0x37e _mtx_lock_flags() at _mtx_lock_flags+0x113 uma_zalloc_arg() at uma_zalloc_arg+0x1449 vmspace_swap_count() at vmspace_swap_count+0xc52 uma_zalloc_arg() at uma_zalloc_arg+0x10e6 uma_zalloc_arg() at uma_zalloc_arg+0x5ef vmspace_alloc() at vmspace_alloc+0x180 vm_map_init() at vm_map_init+0xec vm_map_insert() at vm_map_insert+0x4cb kmem_malloc() at kmem_malloc+0x3de zone_drain() at zone_drain+0x822 uma_large_malloc() at uma_large_malloc+0x4e malloc() at malloc+0x251 swap_pager_swap_init() at swap_pager_swap_init+0x219 vm_pageout_oom() at vm_pageout_oom+0x952 fork_exit() at fork_exit+0x185 fork_trampoline() at fork_trampoline+0xe --- trap 0, rip = 0, rsp = 0xffffff806bb61d30, rbp = 0 --- Witness disabled. Thanks Suresh