From owner-freebsd-bugs@freebsd.org Tue May 10 15:14:13 2016 Return-Path: Delivered-To: freebsd-bugs@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 51F21B36BB1 for ; Tue, 10 May 2016 15:14:13 +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 mx1.freebsd.org (Postfix) with ESMTPS id 2A6BB1E60 for ; Tue, 10 May 2016 15:14:13 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u4AFEDLt080515 for ; Tue, 10 May 2016 15:14:13 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 209428] if_vtnet(4) panics when doing kldunload if_vtnet Date: Tue, 10 May 2016 15:14:13 +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: 11.0-CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: novel@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-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: 2.1.22 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 May 2016 15:14:13 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209428 Bug ID: 209428 Summary: if_vtnet(4) panics when doing kldunload if_vtnet Product: Base System Version: 11.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: novel@FreeBSD.org When using if_vtnet(4) as a module and unloading it using "kldunload if_vtn= et" it immediately causes a panic: Fatal trap 12: page fault while in kernel mode cpuid =3D 0; apic id =3D 00 fault virtual address =3D 0x80 fault code =3D supervisor read data, page not present instruction pointer =3D 0x20:0xffffffff80cff56d stack pointer =3D 0x28:0xfffffe0096eb28a0 frame pointer =3D 0x28:0xfffffe0096eb28d0 code segment =3D base 0x0, limit 0xfffff, type 0x1b =3D DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags =3D interrupt enabled, resume, IOPL =3D 0 current process =3D 779 (kldunload) [ thread pid 779 tid 100058 ] Stopped at uma_zone_get_cur+0xd: movq 0x80(%r14),%rdi db> bt Tracing pid 779 tid 100058 td 0xfffff800064219a0 uma_zone_get_cur() at uma_zone_get_cur+0xd/frame 0xfffffe0096eb28d0 vtnet_modevent() at vtnet_modevent+0x51/frame 0xfffffe0096eb2900 module_unload() at module_unload+0x32/frame 0xfffffe0096eb2920 linker_file_unload() at linker_file_unload+0x24b/frame 0xfffffe0096eb2970 kern_kldunload() at kern_kldunload+0xbc/frame 0xfffffe0096eb29a0 amd64_syscall() at amd64_syscall+0x2db/frame 0xfffffe0096eb2ab0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe0096eb2ab0 --- syscall (444, FreeBSD ELF64, sys_kldunloadf), rip =3D 0x80086b15a, rsp = =3D 0x7fffffffe348, rbp =3D 0x7fffffffebb0 --- db> --=20 You are receiving this mail because: You are the assignee for the bug.=