From nobody Fri Sep 17 13:21:52 2021 X-Original-To: fs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id CA92717CABD9 for ; Fri, 17 Sep 2021 13:21:52 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4H9vk85JGrz4Rrt for ; Fri, 17 Sep 2021 13:21:52 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 9657B15D17 for ; Fri, 17 Sep 2021 13:21:52 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 18HDLqrp034100 for ; Fri, 17 Sep 2021 13:21:52 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 18HDLqaP034099 for fs@FreeBSD.org; Fri, 17 Sep 2021 13:21:52 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 258208] [zfs] locks up when using rollback or destroy on both 13.0-RELEASE & sysutils/openzfs port Date: Fri, 17 Sep 2021 13:21:52 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 13.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: markj@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: fs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Filesystems List-Archive: https://lists.freebsd.org/archives/freebsd-fs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-fs@freebsd.org MIME-Version: 1.0 X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D258208 Mark Johnston changed: What |Removed |Added ---------------------------------------------------------------------------- Status|New |Open --- Comment #6 from Mark Johnston --- (In reply to Dave Cottlehuber from comment #5) So there is effectively an LOR here: 56 152682 zfs - mi_switch+0xc1 _vm_page_busy_sleep+0x100 vm_page_sleep_if_busy+0x28 vm_object_page_remove+= 0xdf vn_pages_remove+0x4c zfs_rezget+0x35 zfs_resume_fs+0x258 zfs_ioc_rollback+0= x158 zfsdev_ioctl_common+0x4e3 zfsdev_ioctl+0x143 devfs_ioctl+0xc7 vn_ioctl+0x1a4 devfs_ioctl_f+0x1e kern_ioctl+0x26d sys_ioctl+0xf6 amd64_syscall+0x10c fast_syscall_common+0xf8=20 445 168579 ping - mi_switch+0xc1 _sleep+0x1cb rms_rlock_fallback+0x90 zfs_freebsd_getpages+0x52 vnode_pager_getpages+0x41 vm_pager_get_pages+0x22 vm_fault+0x49a vm_fault_trap+0x6d trap_pfault+0x1f8 trap+0x3fd calltrap+0x8 The page array passed to zfs_getpages() is busied upon entry, and then we do ZFS_ENTER(zfsvfs). But zfs_rezget() is called with this lock held and then tries to busy vnode pages. --=20 You are receiving this mail because: You are the assignee for the bug.=