From owner-freebsd-stable@freebsd.org Fri Oct 19 11:10:28 2018 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B34FBFDE344 for ; Fri, 19 Oct 2018 11:10:28 +0000 (UTC) (envelope-from sebastian.wojtczak@gmail.com) Received: from mail-lj1-x231.google.com (mail-lj1-x231.google.com [IPv6:2a00:1450:4864:20::231]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 156117956B for ; Fri, 19 Oct 2018 11:10:28 +0000 (UTC) (envelope-from sebastian.wojtczak@gmail.com) Received: by mail-lj1-x231.google.com with SMTP id y71-v6so30472472lje.9 for ; Fri, 19 Oct 2018 04:10:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=OImZDbwIcdOASfE0XR+E82lFmGqBQLAX0Abhua/TgOg=; b=MeeV8he5EuFzcA0WdDAHVoAhoLGi1HYTwpqY4SuvXhtpYutO4Yv1gplvHnXEDMhc6k hjYlng3vY3WInpPQs7qQlMM0xXeK6V8cGiy2pTTwQBXo98cwXzmWwHxVECitvjqoPmtV Zxos+NM6rb5+fZaZ3kchq62F7LOV3yJGgt1293vriBoPrKSnP4FHwGUlxuT2t9Z791ZM rkExcCazy4ecLG3c3bfBrGQNCLv5JOR/dL5shOvyw43koZ5GgbmT8I4BITj2r/BgNR1F dr3Rf04YKAUNRf917K+aLHhzt0ggVDO1r1/cD/0G3PlPVmvY2CmIcNYWZgy5sXU518Ff czxA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=OImZDbwIcdOASfE0XR+E82lFmGqBQLAX0Abhua/TgOg=; b=OEUQE12PJUE2YadGdRM0Y93YUJMsC56KvfZRLmeT680Efh4/u0CkYOKdx1Wk7lhggN h30QWBDgnPw0c2PgRaJSa28wUTqwtrUovzu9zY+3AxAIeG/JJHJfn7zTKhnUMVhlWSkS Qe8/+LdIPmNsEM4Lc9WO7TP1OcBOrhqkAlinSSWWnf5vJEWqS09Ju2JF46QiqXw7eRiP NXo69+Op/Dph1mXs5V1T/92PD2u8H2AAE0FVPH0PA1YyksolhJITz3ggsq3gg9Xiuj4j sFWYIK3ODbu8s6zea5L6g+fwv9TGu6n0THzRG6WmRPtm859YdCYIRUikQa0+miL7ghVb EAEw== X-Gm-Message-State: ABuFfoj1PHybosKGgr7Y2UnWfwjrUBe+QSofmGyGMLGc/Tl9Vxzd60RK 78kXfavw3g0IiPfcsXsccIzubLFO+aEsmq72SYUpWOt/TSI= X-Google-Smtp-Source: ACcGV62N7XryU9Cp2FnUNXQok9MTfADhVsHZX8APXfBPD7u5XvCTevBTWo1ThG9l0OPoYfKcGDbU/NvNCLPKwRVaPOQ= X-Received: by 2002:a2e:8ec6:: with SMTP id e6-v6mr19780462ljl.166.1539947426427; Fri, 19 Oct 2018 04:10:26 -0700 (PDT) MIME-Version: 1.0 From: Sebastian Wojtczak Date: Fri, 19 Oct 2018 13:10:15 +0200 Message-ID: Subject: FreeBSD 11.2 kernel crash when dd To: freebsd-stable@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Oct 2018 11:10:28 -0000 Hi, I would like to report a kernel crash while dd on ssd drive. Just found that my PC crashed several times during below command: dd if=/dev/ada2 of=file_name bs=10m. I was trying to make an image from my ssd drive. Once dump file hit size 41G or 52G kernel crashes and reboot the system. Oct 18 12:30:11 username syslogd: kernel boot file is /boot/kernel/kernel Oct 18 12:30:11 username kernel: Oct 18 12:30:11 username kernel: Oct 18 12:30:11 username kernel: Fatal trap 12: page fault while in kernel mode Oct 18 12:30:11 username kernel: cpuid = 1; apic id = 01 Oct 18 12:30:11 username kernel: fault virtual address = 0x5a Oct 18 12:30:11 username kernel: fault code = supervisor read data, page not present Oct 18 12:30:11 username kernel: instruction pointer = 0x20:0xffffffff80e67f6d Oct 18 12:30:11 username kernel: stack pointer = 0x28:0xfffffe084b408f40 Oct 18 12:30:11 username kernel: frame pointer = 0x28:0xfffffe084b408f80 Oct 18 12:30:11 username kernel: code segment = base 0x0, limit 0xfffff, type 0x1b Oct 18 12:30:11 username kernel: = DPL 0, pres 1, long 1, def32 0, gran 1 Oct 18 12:30:11 username kernel: processor eflags = interrupt enabled, resume, IOPL = 0 Oct 18 12:30:11 username kernel: current process = 0 (zio_write_issue_8) Oct 18 12:30:11 username kernel: trap number = 12 Oct 18 12:30:11 username kernel: panic: page fault Oct 18 12:30:11 username kernel: cpuid = 1 Oct 18 12:30:11 username kernel: KDB: stack backtrace: Oct 18 12:30:11 username kernel: #0 0xffffffff80b50087 at kdb_backtrace+0x67 Oct 18 12:30:11 username kernel: #1 0xffffffff80b099f7 at vpanic+0x177 Oct 18 12:30:11 username kernel: #2 0xffffffff80b09873 at panic+0x43 Oct 18 12:30:11 username kernel: #3 0xffffffff80fe105f at trap_fatal+0x35f Oct 18 12:30:11 username kernel: #4 0xffffffff80fe10b9 at trap_pfault+0x49 Oct 18 12:30:11 username kernel: #5 0xffffffff80fe0887 at trap+0x2c7 Oct 18 12:30:11 username kernel: #6 0xffffffff80fc04cc at calltrap+0x8 Oct 18 12:30:11 username kernel: #7 0xffffffff80e56df2 at kmem_back+0xf2 Oct 18 12:30:11 username kernel: #8 0xffffffff80e56cd0 at kmem_malloc+0x60 Oct 18 12:30:11 username kernel: #9 0xffffffff80e4e752 at keg_alloc_slab+0xe2 Oct 18 12:30:11 username kernel: #10 0xffffffff80e5118e at keg_fetch_slab+0x14e Oct 18 12:30:11 username kernel: #11 0xffffffff80e509a4 at zone_fetch_slab+0x64 Oct 18 12:30:11 username kernel: #12 0xffffffff80e50a7f at zone_import+0x3f Oct 18 12:30:11 username kernel: #13 0xffffffff80e4d199 at uma_zalloc_arg+0x3d9 Oct 18 12:30:11 username kernel: #14 0xffffffff832d2ab2 at zio_write_compress+0x1e2 Oct 18 12:30:11 username kernel: #15 0xffffffff832d174c at zio_execute+0xac Oct 18 12:30:11 username kernel: #16 0xffffffff80b617e4 at taskqueue_run_locked+0x154 Oct 18 12:30:11 username kernel: #17 0xffffffff80b62918 at taskqueue_thread_loop+0x98 Oct 18 12:30:11 username kernel: Uptime: 5m50s One virtual machine is started with bhyve at startup but even if I shutdown it, same crash happen. Disabling vmm does not help but only extend time to crash during ssd dump. Current zfs setup is zraid on 3 (500GB) hdd drives with compress=on. Drive ada0 is not part of zraid and is not attached/mount what ever. Any help how to investigate it is appreciated.