From owner-freebsd-wireless@freebsd.org Thu Jun 11 19:55:57 2020 Return-Path: Delivered-To: freebsd-wireless@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 221C033FADF for ; Thu, 11 Jun 2020 19:55:57 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 49jZNY08SGz4KSX for ; Thu, 11 Jun 2020 19:55:57 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 0521C33F9FE; Thu, 11 Jun 2020 19:55:57 +0000 (UTC) Delivered-To: wireless@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 04EB733FC79 for ; Thu, 11 Jun 2020 19:55:57 +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 "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49jZNX6Pp7z4KZr for ; Thu, 11 Jun 2020 19:55:56 +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 D76D31DC83 for ; Thu, 11 Jun 2020 19:55:56 +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 05BJtusi045482 for ; Thu, 11 Jun 2020 19:55:56 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 05BJtu1a045480 for wireless@FreeBSD.org; Thu, 11 Jun 2020 19:55:56 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: wireless@FreeBSD.org Subject: [Bug 230785] Page fault when if_ath module is unloaded Date: Thu, 11 Jun 2020 19:55:55 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: wireless X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: panic X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: ali.abdallah@suse.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: wireless@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: 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 MIME-Version: 1.0 X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 11 Jun 2020 19:55:57 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D230785 --- Comment #1 from Ali Abdallah --- I had a closer look into the issue I'm having. The detaching order of the various if_ath* and ath* modules is broken. #0 __curthread () at /usr/src/sys/amd64/include/pcpu.h:234 #1 doadump (textdump=3D0) at /usr/src/sys/kern/kern_shutdown.c:371 #2 0xffffffff802f5a4b in db_dump (dummy=3D, dummy2=3D, dummy3=3D, dummy4=3D) at /usr/src/sys/ddb/db_command.c:574 #3 0xffffffff802f5819 in db_command (last_cmdp=3D, cmd_table=3D, dopager=3D1) at /usr/src/sys/ddb/db_command.c:= 481 #4 0xffffffff802f5594 in db_command_loop () at /usr/src/sys/ddb/db_command.c:534 #5 0xffffffff802f87ef in db_trap (type=3D, code=3D) at /usr/src/sys/ddb/db_main.c:252 #6 0xffffffff80431e2a in kdb_trap (type=3D3, code=3D0, tf=3D0xfffffe003d98= 5100) at /usr/src/sys/kern/subr_kdb.c:693 #7 0xffffffff806d59dc in trap (frame=3D0xfffffe003d985100) at /usr/src/sys/amd64/amd64/trap.c:621 #8 #9 kdb_enter (why=3D0xffffffff8079127e "panic", msg=3D) at /usr/src/sys/kern/subr_kdb.c:479 #10 0xffffffff803e586a in vpanic (fmt=3D, ap=3D) at /usr/src/sys/kern/kern_shutdown.c:866 #11 0xffffffff803e56a3 in panic (fmt=3D0xffffffff80865248 "m\201y\200\377\377\377\377") at /usr/src/sys/kern/kern_shutdown.c:804 #12 0xffffffff8067fae7 in vm_fault_hold (map=3D0xfffff80002001000, vaddr=3D, fault_type=3D4 '\004', fault_flags=3D, m_hold=3D0x0) at /usr/src/sys/vm/vm_fault.c:614 #13 0xffffffff8067d4b0 in vm_fault (map=3D0xfffff80002001000, vaddr=3D, fault_type=3D4 '\004', fault_flags=3D0) at /usr/src/sys/vm/vm_fault.c= :562 #14 0xffffffff806d5ff4 in trap_pfault (frame=3D0xfffffe003d985590, usermode= =3D0) at /usr/src/sys/amd64/amd64/trap.c:846 #15 0xffffffff806d54cf in trap (frame=3D0xfffffe003d985590) at /usr/src/sys/amd64/amd64/trap.c:443 #16 #17 0xffffffff811bf0c0 in ?? () #18 0xffffffff810b157a in ath_intr (arg=3D0xfffffe00003e4000) at /usr/src/sys/dev/ath/if_ath.c:2106 #19 0xffffffff803af284 in intr_event_execute_handlers (p=3D, ie=3D) at /usr/src/sys/kern/kern_intr.c:1129 #20 ithread_execute_handlers (p=3D, ie=3D) at /usr/src/sys/kern/kern_intr.c:1142 #21 ithread_loop (arg=3D) at /usr/src/sys/kern/kern_intr.c:1= 222 #22 0xffffffff803abdc3 in fork_exit (callout=3D0xffffffff803af0b0 , arg=3D0xfffff800027e94c0, frame=3D0xfffffe003d985ac0) at /usr/src/sys/kern/kern_fork.c:1065 #23 (kgdb) frame 18 #18 0xffffffff810b157a in ath_intr (arg=3D0xfffffe00003e4000) at /usr/src/sys/dev/ath/if_ath.c:2106 l 2106 if (!ath_hal_intrpend(ah)) { /* shared irq, not = for us */ (kgdb) print ah->ah_isInterruptPending $1 =3D (HAL_BOOL (*)(struct ath_hal *)) 0xffffffff811bf0c0 # kldstat=20 Id Refs Address Size Name 1 79 0xffffffff80200000 e81700 kernel 4 11 0xffffffff81089000 1c890 ath_hal.ko 5 3 0xffffffff810a6000 60c40 ath_main.ko 6 3 0xffffffff81107000 1c20 ath_dfs.ko 7 9 0xffffffff81109000 aea68 wlan.ko 8 3 0xffffffff811b8000 6688 ath_rate.ko 9 2 0xffffffff811bf000 8ad98 ath_hal_ar9300.ko 10 2 0xffffffff8124a000 52058 ath_hal_ar5416.ko 11 3 0xffffffff8129d000 39578 ath_hal_ar5212.ko 12 2 0xffffffff812d7000 15d38 ath_hal_ar5211.ko 13 2 0xffffffff812ed000 10938 ath_hal_ar5210.ko The 0xffffffff811bf0c0 (ar9300_is_interrupt_pending) belongs to the module (ath_hal_ar9300) that has been just unloaded. --=20 You are receiving this mail because: You are the assignee for the bug.=