From owner-freebsd-bugs@FreeBSD.ORG Thu Oct 9 08:29:06 2014 Return-Path: Delivered-To: freebsd-bugs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 205C14E6 for ; Thu, 9 Oct 2014 08:29:06 +0000 (UTC) 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 01C8294C for ; Thu, 9 Oct 2014 08:29:06 +0000 (UTC) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.14.9/8.14.9) with ESMTP id s998T5Ll084482 for ; Thu, 9 Oct 2014 08:29:05 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 194264] New: crash in unp_gc -> unp_accessable Date: Thu, 09 Oct 2014 08:29:06 +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: avg@FreeBSD.org X-Bugzilla-Status: Needs Triage X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Target-Milestone: --- 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 attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit 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: 2.1.18-1 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Oct 2014 08:29:06 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194264 Bug ID: 194264 Summary: crash in unp_gc -> unp_accessable Product: Base System Version: 11.0-CURRENT Hardware: Any OS: Any Status: Needs Triage Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: avg@FreeBSD.org Created attachment 148131 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=148131&action=edit kgdb postmortem session First, I think that this panic could be related to a crash of chromium process that preceded it. Perhaps the crash triggered closing of sockets and that interacted badly with unp_gc code. Unread portion of the kernel message buffer: <6>pid 48502 (chrome), uid 1001: exited on signal 11 (core dumped) Fatal trap 12: page fault while in kernel mode cpuid = 1; apic id = 01 fault virtual address = 0x100000021 fault code = supervisor read data, page not present ... (kgdb) bt #0 doadump (textdump=1) at pcpu.h:223 #1 0xffffffff8063d9fd in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:445 #2 0xffffffff8063df3f in panic (fmt=) at /usr/src/sys/kern/kern_shutdown.c:621 #3 0xffffffff80861f4f in trap_fatal (frame=, eva=) at /usr/src/sys/amd64/amd64/trap.c:866 #4 0xffffffff8086229c in trap_pfault (frame=0xfffffe01dd5d89e0, usermode=) at /usr/src/sys/amd64/amd64/trap.c:677 #5 0xffffffff808618be in trap (frame=0xfffffe01dd5d89e0) at /usr/src/sys/amd64/amd64/trap.c:426 #6 0xffffffff808623f7 in trap_check (frame=) at /usr/src/sys/amd64/amd64/trap.c:620 #7 0xffffffff80845122 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:231 #8 0xffffffff806d6668 in unp_gc (arg=0x10, pending=32) at /usr/src/sys/kern/uipc_usrreq.c:2152 #9 0xffffffff8068f465 in taskqueue_run_locked (queue=0xfffff80012294600) at /usr/src/sys/kern/subr_taskqueue.c:371 #10 0xffffffff80690258 in taskqueue_thread_loop (arg=) at /usr/src/sys/kern/subr_taskqueue.c:642 #11 0xffffffff80605a1a in fork_exit (callout=0xffffffff80690190 , arg=0xffffffff80ee17c0, frame=0xfffffe01dd5d8c00) at /usr/src/sys/kern/kern_fork.c:977 #12 0xffffffff8084565e in fork_trampoline () at /usr/src/sys/amd64/amd64/exception.S:605 -- You are receiving this mail because: You are the assignee for the bug.