From owner-freebsd-bugs@freebsd.org Mon Mar 11 15:57:35 2019 Return-Path: Delivered-To: freebsd-bugs@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 3392D1524603 for ; Mon, 11 Mar 2019 15:57:35 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id BCAFC6D3F1 for ; Mon, 11 Mar 2019 15:57:34 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 766201524602; Mon, 11 Mar 2019 15:57:34 +0000 (UTC) Delivered-To: bugs@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 517771524601 for ; Mon, 11 Mar 2019 15:57:34 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id E1FC66D3F0 for ; Mon, 11 Mar 2019 15:57:33 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 142662C99 for ; Mon, 11 Mar 2019 15:57:33 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id x2BFvWU1005677 for ; Mon, 11 Mar 2019 15:57:32 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x2BFvW9F005676 for bugs@FreeBSD.org; Mon, 11 Mar 2019 15:57:32 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: bugs@FreeBSD.org Subject: [Bug 236466] [sendfile]: panic when VOP_READ returns an error Date: Mon, 11 Mar 2019 15:57:32 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: asomers@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Mar 2019 15:57:35 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D236466 Bug ID: 236466 Summary: [sendfile]: panic when VOP_READ returns an error Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: asomers@FreeBSD.org sendfile will panic if it can't read the pages it wants to send. This pani= c is easily reproducible using FUSE. I've seen the error when the fuse filesyst= em returns either EOPNOTSUP or EIO for its read, but presumably it can happen = with any sort of read error. FreeBSD fbsd12.lauralan.noip.me 13.0-CURRENT FreeBSD 13.0-CURRENT #3 r344740:344786M: Tue Mar 5 10:37:58 MST 2019=20=20=20=20 somers@fbsd12.lauralan.noip.me:/usr/obj/usr/home/somers/freebsd/base/projec= ts/fuse2/amd64.amd64/sys/GENERIC amd64 panic: sendfile_swapin: pager fail obj 0xfffff800343f6300 page 0xfffff800b9a93430 cpuid =3D 3 time =3D 1552317254 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0031fc1= 5d0 vpanic() at vpanic+0x1b4/frame 0xfffffe0031fc1630 panic() at panic+0x43/frame 0xfffffe0031fc1690 vn_sendfile() at vn_sendfile+0x1619/frame 0xfffffe0031fc1900 sendfile() at sendfile+0x12b/frame 0xfffffe0031fc1990 amd64_syscall() at amd64_syscall+0x276/frame 0xfffffe0031fc1ab0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0031fc1ab0 --- syscall (393, FreeBSD ELF64, sys_sendfile), rip =3D 0x8005077da, rsp =3D 0x7fffffffe6e8, rbp =3D 0x7fffffffe840 --- KDB: enter: panic I'll commit a reproduction case shortly. --=20 You are receiving this mail because: You are the assignee for the bug.=