From owner-freebsd-net@freebsd.org Thu Aug 4 07:56:53 2016 Return-Path: Delivered-To: freebsd-net@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 2B1C2BAE774; Thu, 4 Aug 2016 07:56:53 +0000 (UTC) (envelope-from kmacybsd@gmail.com) Received: from mail-it0-x236.google.com (mail-it0-x236.google.com [IPv6:2607:f8b0:4001:c0b::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id EC1FB1F77; Thu, 4 Aug 2016 07:56:52 +0000 (UTC) (envelope-from kmacybsd@gmail.com) Received: by mail-it0-x236.google.com with SMTP id u186so316976897ita.0; Thu, 04 Aug 2016 00:56:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:from:date:message-id:subject:to; bh=d5/uh7CGZrBIoHGOke4fIFhM+qp9Zgzigl1Ijpw2tUk=; b=KtpZyNkII2Q2VojdCe4bFDjQOIuAl2cLn/XtKKMQL/zX4pQv0Uxej1EXz541Ru4RHR /NtAodMzmQnyVzgXTJKNKbfdo9sMKRa/BO84S4WHJVTvpT35h3UHu7KCAq5xiC30yKsk Bkvm79uL8uJiBjTBCCEs/u450ophJlyGthtZMZ0owFE4q3EDaFlLq3EWFmSl3a4w1gHl cLVN9EB6hFJBxGYHIB1g7cxpXMuRzApUsnzDe60tXKHkluoi5EZg8D08No6LMvvSDCZe HL146XHcmOlCv77UjWY47cjnyt/+H67lBCl6ElO3IoDad6Kln++Ej4+CpplWKTmQGDai sRqQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:sender:from:date:message-id:subject :to; bh=d5/uh7CGZrBIoHGOke4fIFhM+qp9Zgzigl1Ijpw2tUk=; b=AtC9zpR7lrH9wCCpU/Jlqj/eY7rAIgOILWYZjMcFT6bPEUWUTtHYQuT+XhSw6SJ2Yz 8p3Kz/v/Ptag18oXEc0LIxLDxEyLKPY9//dWTCaAChxP5236oC7Z9Q2z1+exV0Md12QG MA9fruE+E4N4QOaP9jxn2mJ9/gvTRFzUpoF7sn+ygoanFMDkx+ti17Dbf5DlB19uH33C Hriq8iT+V0lv5b2xQ2Y3RhwV5MvGizGpssO5k0Igu2uYwpNN+aOolZ7Zv6SUcwZkKeWJ XMQ/vl4LwUVwZ6xzql1jdKz3aPX5fTYtgCQabba2kcC4LttFmRAFUlN9m6n6r+autINk tHkQ== X-Gm-Message-State: AEkoouvaRs0mfs8EWmPyr/1Yv6r8AJPnJgJSgv7dHvACrznFH73YI6lId0saKjdPBPgX8VcXX9kOSGq25LND0g== X-Received: by 10.36.214.209 with SMTP id o200mr29059783itg.56.1470297411987; Thu, 04 Aug 2016 00:56:51 -0700 (PDT) MIME-Version: 1.0 Sender: kmacybsd@gmail.com Received: by 10.107.143.11 with HTTP; Thu, 4 Aug 2016 00:56:51 -0700 (PDT) From: "K. Macy" Date: Thu, 4 Aug 2016 00:56:51 -0700 X-Google-Sender-Auth: 23JC8GXRsyTBAiDrNqJifBG3vxw Message-ID: Subject: iwm load panic To: FreeBSD Current , "freebsd-net@freebsd.org" Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Aug 2016 07:56:53 -0000 I get this panic periodically at iwm load time: (kgdb) p ic->ic_tq value has been optimized out (kgdb) down #12 taskqueue_drain (queue=0x0, task=0xfffffe004fc17150) at /usr/home/mmacy/drm-next-4.6/sys/kern/subr_taskqueue.c:554 554 TQ_LOCK(queue); (kgdb) bt #0 __curthread () at ./machine/pcpu.h:221 #1 doadump (textdump=0) at /usr/home/mmacy/drm-next-4.6/sys/kern/kern_shutdown.c:298 #2 0xffffffff82703ac9 in vt_kms_postswitch (arg=) at /usr/home/mmacy/drm-next-4.6/sys/modules/drm2/drm2/../../../dev/drm2/linux_fb.c:82 #3 0xffffffff8093fb55 in vt_window_switch (vw=0xffffffff817e87d0 ) at /usr/home/mmacy/drm-next-4.6/sys/dev/vt/vt_core.c:540 #4 0xffffffff8093c9b0 in vtterm_cngrab (tm=) at /usr/home/mmacy/drm-next-4.6/sys/dev/vt/vt_core.c:1465 #5 0xffffffff80a78f12 in cngrab () at /usr/home/mmacy/drm-next-4.6/sys/kern/kern_cons.c:368 #6 0xffffffff80ae88c6 in vpanic (fmt=0xffffffff810f771b "%s", ap=0xfffffe0461098e70) at /usr/home/mmacy/drm-next-4.6/sys/kern/kern_shutdown.c:745 #7 0xffffffff80ae87b3 in panic (fmt=) at /usr/home/mmacy/drm-next-4.6/sys/kern/kern_shutdown.c:690 #8 0xffffffff80fc0361 in trap_fatal (frame=0xfffffe0461099170, eva=100) at /usr/home/mmacy/drm-next-4.6/sys/amd64/amd64/trap.c:841 #9 0xffffffff80fc0553 in trap_pfault (frame=0xfffffe0461099170, usermode=0) at /usr/home/mmacy/drm-next-4.6/sys/amd64/amd64/trap.c:691 #10 0xffffffff80fbfafc in trap (frame=0xfffffe0461099170) at /usr/home/mmacy/drm-next-4.6/sys/amd64/amd64/trap.c:442 #11 #12 taskqueue_drain (queue=0x0, task=0xfffffe004fc17150) at /usr/home/mmacy/drm-next-4.6/sys/kern/subr_taskqueue.c:554 #13 0xffffffff827823bb in ieee80211_draintask (ic=, task=0xfffffe004fc17150) at /usr/home/mmacy/drm-next-4.6/sys/net80211/ieee80211_var.h:796 #14 iwm_detach_local (sc=, do_net80211=) at /usr/home/mmacy/drm-next-4.6/sys/modules/iwm/../../dev/iwm/if_iwm.c:6121 #15 0xffffffff80b21e8c in run_interrupt_driven_config_hooks () at /usr/home/mmacy/drm-next-4.6/sys/kern/subr_autoconf.c:118 #16 0xffffffff80b21ccb in config_intrhook_establish (hook=) at /usr/home/mmacy/drm-next-4.6/sys/kern/subr_autoconf.c:182 #17 0xffffffff82781d03 in iwm_attach (dev=) at /usr/home/mmacy/drm-next-4.6/sys/modules/iwm/../../dev/iwm/if_iwm.c:5825 #18 0xffffffff80b26340 in DEVICE_ATTACH (dev=0xfffff8000744f700) at ./device_if.h:180 #19 device_attach (dev=0xfffff8000744f700) at /usr/home/mmacy/drm-next-4.6/sys/kern/subr_bus.c:2900 #20 0xffffffff8071730d in pci_driver_added (dev=, driver=) at /usr/home/mmacy/drm-next-4.6/sys/dev/pci/pci.c:4330 #21 0xffffffff80b23e9d in BUS_DRIVER_ADDED (_dev=0xfffff8000744f800, _driver=0xffffffff82790c08 ) at ./bus_if.h:204 #22 devclass_driver_added (dc=, driver=) at /usr/home/mmacy/drm-next-4.6/sys/kern/subr_bus.c:1099 #23 0xffffffff80b23e02 in devclass_add_driver (dc=, driver=, pass=, dcp=) at /usr/home/mmacy/drm-next-4.6/sys/kern/subr_bus.c:1172 #24 0xffffffff80ac2300 in module_register_init (arg=) at /usr/home/mmacy/drm-next-4.6/sys/kern/kern_module.c:123 #25 0xffffffff80ab3f14 in linker_file_sysinit (lf=) at /usr/home/mmacy/drm-next-4.6/sys/kern/kern_linker.c:234 #26 linker_load_file (filename=, result=) at /usr/home/mmacy/drm-next-4.6/sys/kern/kern_linker.c:434 #27 linker_load_module (kldname=, modname=0xfffff8000f0a8000 "if_iwm", parent=, verinfo=, lfpp=) at /usr/home/mmacy/drm-next-4.6/sys/kern/kern_linker.c:2024 #28 0xffffffff80ab5d48 in kern_kldload (td=, file=, fileid=0xfffffe0461099874) at /usr/home/mmacy/drm-next-4.6/sys/kern/kern_linker.c:1041 #29 0xffffffff80ab5eab in sys_kldload (td=0xfffff800966f1500, uap=) at /usr/home/mmacy/drm-next-4.6/sys/kern/kern_linker.c:1067 #30 0xffffffff80fc0cc8 in syscallenter (td=, sa=) at /usr/home/mmacy/drm-next-4.6/sys/amd64/amd64/../../kern/subr_syscall.c:135 #31 amd64_syscall (td=, traced=0) at /usr/home/mmacy/drm-next-4.6/sys/amd64/amd64/trap.c:942 #32 #33 0x000000080086d38a in ?? ()