From owner-freebsd-bugs@freebsd.org Sun Apr 19 01:51:45 2020 Return-Path: Delivered-To: freebsd-bugs@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 083582B5FD3 for ; Sun, 19 Apr 2020 01:51:45 +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 494Xr06Tq0z4KQy for ; Sun, 19 Apr 2020 01:51:44 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id DE8EC2B5FD2; Sun, 19 Apr 2020 01:51:44 +0000 (UTC) Delivered-To: bugs@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 DE4EB2B5FD1 for ; Sun, 19 Apr 2020 01:51:44 +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) server-signature RSA-PSS (4096 bits) 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 494Xr05dRpz4KQx for ; Sun, 19 Apr 2020 01:51:44 +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) server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id BCB761E04E for ; Sun, 19 Apr 2020 01:51:44 +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 03J1pidC027962 for ; Sun, 19 Apr 2020 01:51:44 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 03J1pirG027961 for bugs@FreeBSD.org; Sun, 19 Apr 2020 01:51:44 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 245732] panic: page fault when unplugging mouse Date: Sun, 19 Apr 2020 01:51:44 +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 Only Me X-Bugzilla-Who: delphij@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: Sun, 19 Apr 2020 01:51:45 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D245732 Bug ID: 245732 Summary: panic: page fault when unplugging mouse Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: delphij@FreeBSD.org This is not reliably triggerable, but occasionally happens when unplugging mouse. The kernel is a regular GENERIC kernel with INVARIANTS, etc. enabled. This particular crashdump was captured with -CURRENT as of r360001. Fatal trap 12: page fault while in kernel mode cpuid =3D 1; apic id =3D 01 fault virtual address =3D 0xffffffffffffffff fault code =3D supervisor read data, page not present instruction pointer =3D 0x20:0xffffffff8064a1b9 stack pointer =3D 0x28:0xfffffe003ce98840 frame pointer =3D 0x28:0xfffffe003ce98850 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 17 (usbus0) trap number =3D 12 Dumping 3413 out of 32439 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..= 91% No symbol "zombproc" in current context. Backtrace: #0 doadump (textdump=3D0) at src/sys/amd64/include/pcpu_aux.h:55 55 __asm("movq %%gs:%P1,%0" : "=3Dr" (td) : "n" (offsetof(stru= ct pcpu, (kgdb) #0 doadump (textdump=3D0) at src/sys/amd64/include/pcpu_aux.h:55 #1 0xffffffff84e5ea51 in vt_kms_postswitch (arg=3D0xfffff800039bad40) at /p51/home/delphij/kms-drm/drivers/gpu/drm/linux_fb.c:89 #2 0xffffffff80a2d7c2 in vt_window_switch (vw=3D0xffffffff818e5b58) at /usr/src/sys/dev/vt/vt_core.c:603 #3 0xffffffff80a2ad3f in vtterm_cngrab (tm=3D) at /usr/src/sys/dev/vt/vt_core.c:1612 #4 0xffffffff80b5cac6 in cngrab () at /usr/src/sys/kern/kern_cons.c:397 #5 0xffffffff80bc0d4c in vpanic (fmt=3D0xffffffff8111d06c "%s",=20 ap=3D0xfffffe003ce98580) at /usr/src/sys/kern/kern_shutdown.c:887 #6 0xffffffff80bc0b93 in panic (fmt=3D) at /usr/src/sys/kern/kern_shutdown.c:839 #7 0xffffffff81065277 in trap_fatal (frame=3D,=20 eva=3D) at /usr/src/sys/amd64/amd64/trap.c:919 #8 0xffffffff81065319 in trap_pfault (frame=3D0xfffffe003ce98780,=20 usermode=3D, signo=3D,=20 ucode=3D) at src/sys/amd64/include/pcpu_aux.h:55 #9 0xffffffff81064915 in trap (frame=3D0xfffffe003ce98780) at /usr/src/sys/amd64/amd64/trap.c:400 #10 0xffffffff8103abe8 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:289 #11 0xffffffff8064a1b9 in evdev_revoke_client (client=3D0xffffffffffffffff) at /usr/src/sys/dev/evdev/cdev.c:718 #12 0xffffffff8064b948 in evdev_unregister (evdev=3D0xfffff8000f929c00) at /usr/src/sys/dev/evdev/evdev.c:372 #13 0xffffffff8064b8bc in evdev_free (evdev=3D0xfffff8000f929c00) at /usr/src/sys/dev/evdev/evdev.c:110 #14 0xffffffff84ee4d33 in ums_detach (self=3D) at /usr/src/sys/dev/usb/input/ums.c:779 #15 0xffffffff80bf876e in device_detach (dev=3D0xfffff80006b28b00) at device_if.h:234 #16 0xffffffff80bf8445 in device_delete_child (dev=3D0xfffff80006a67b00,=20 child=3D0xfffff80006b28b00) at /usr/src/sys/kern/subr_bus.c:1979 #17 0xffffffff809ef8cf in usb_detach_device (udev=3D0xfffff8000f8b9000,=20 iface_index=3D) at /usr/src/sys/dev/usb/usb_device.c:1240 #18 0xffffffff809ee8f4 in usb_unconfigure (udev=3D0xfffff8000f8b9000,=20 flag=3D2 '\002') at /usr/src/sys/dev/usb/usb_device.c:627 #19 0xffffffff809f1efe in usb_free_device (udev=3D0xfffff8000f8b9000) at /usr/src/sys/dev/usb/usb_device.c:2303 #20 0xffffffff809f9bed in uhub_explore (udev=3D) at /usr/src/sys/dev/usb/usb_hub.c:631 #21 0xffffffff809e3807 in usb_bus_explore (pm=3D) at /usr/src/sys/dev/usb/controller/usb_controller.c:414 #22 0xffffffff809ff213 in usb_process (arg=3D0xfffffe003d19c538) at /usr/src/sys/dev/usb/usb_process.c:179 #23 0xffffffff80b7e3c0 in fork_exit (callout=3D0xffffffff809ff110 ,=20 arg=3D0xfffffe003d19c538, frame=3D0xfffffe003ce98b00) at /usr/src/sys/kern/kern_fork.c:1051 #24 0xffffffff8103bc2e in fork_trampoline () at /usr/src/sys/amd64/amd64/exception.S:1080 #25 0x0000000000000000 in ?? 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