Date: Wed, 5 May 2010 13:03:32 +0200 From: Demelier David <demelier.david@gmail.com> To: Rui Paulo <rpaulo@FreeBSD.org> Cc: Giovanni Trematerra <giovanni.trematerra@gmail.com>, freebsd-stable@freebsd.org, freebsd-acpi@freebsd.org Subject: Re: Kernel panic when unpluggin AC adaptor Message-ID: <20100505110332.GA1578@Melon.malikania.fr> In-Reply-To: <4DEBDE2C-C0D2-469D-AC42-DD5027926424@FreeBSD.org> References: <n2gb3954bba1005040351o718a9508u8e992b0469137bdf@mail.gmail.com> <r2p4e6cba831005040836y43a0bb21x82b4b25334a755fa@mail.gmail.com> <y2yb3954bba1005040927l538ef077q20aea7a4c5121fdd@mail.gmail.com> <h2ub3954bba1005040935h7e5207b2o399c357a1cfd407@mail.gmail.com> <20100504200139.GP23646@deviant.kiev.zoral.com.ua> <i2qb3954bba1005041327v72795c19va26e23dbb79159b9@mail.gmail.com> <20100504203809.GR23646@deviant.kiev.zoral.com.ua> <42ACDAF6-7EA9-4CE9-AA8D-FDA678A1EA74@FreeBSD.org> <20100505074045.GA28030@Abricot.malikania.fr> <4DEBDE2C-C0D2-469D-AC42-DD5027926424@FreeBSD.org>
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On Wed, May 05, 2010 at 10:49:23AM +0100, Rui Paulo wrote: > > On 5 May 2010, at 08:40, Demelier David wrote: > > > On Wed, May 05, 2010 at 01:19:45AM +0100, Rui Paulo wrote: > >> On 4 May 2010, at 21:38, Kostik Belousov wrote: > >> > >>> On Tue, May 04, 2010 at 10:27:23PM +0200, David DEMELIER wrote: > >>>> 2010/5/4 Kostik Belousov <kostikbel@gmail.com>: > >>>>> On Tue, May 04, 2010 at 06:35:52PM +0200, David DEMELIER wrote: > >>>>>> Good news ! It worked, check the picture here : > >>>>>> > >>>>>> http://img63.imageshack.us/img63/4244/dsc00361g.jpg > >>>>> > >>>>> Please try adding code fragment like this: > >>>>> if (cx_next->p_lvlx == NULL) > >>>>> printf("Going to panic.\n"); > >>>>> to dev/acpi/acpi_cpu.c:acpi_cpu_idle() function, right before > >>>>> CPU_GET_REG(cx_next->p_lvlx, 1); > >>>>> line and see if it prints the message immediately before the panic. > >>>>> > >>>> > >>>> Yes it does at the beginning of the kernel panic. > >>> > >>> Ok, so the point of panic is found, it is NULL cx_next->p_lvlx resource. > >>> With the data in hand, I recommend you to ask on acpi@ (added a Cc:) > >>> about the cause and possible solution. > >> > >> I don't remember the details, but I've seen this before. Does your CPU Cx levels change when you plug/unplug the AC adapter? > >> > > > > May 4 15:48:32 Melon power_profile: changed to 'economy' > > May 4 15:48:35 Melon power_profile: changed to 'performance' > > I wasn't asking about the profiles. Show us the output of sysctl dev.cpu with and without the AC cord plugged in. > That is when I have ac unplugged : $ sysctl dev.cpu dev.cpu.0.%desc: ACPI CPU dev.cpu.0.%driver: cpu dev.cpu.0.%location: handle=\_PR_.CPU0 dev.cpu.0.%pnpinfo: _HID=none _UID=0 dev.cpu.0.%parent: acpi0 dev.cpu.0.freq: 1200 dev.cpu.0.freq_levels: 2101/35000 1837/30625 1600/23888 1400/20902 1200/15000 1050/13125 900/11250 750/9375 600/7500 450/5625 300/3750 150/1875 dev.cpu.0.cx_supported: C1/1 C2/57 dev.cpu.0.cx_lowest: C2 dev.cpu.0.cx_usage: 7.22% 92.77% last 2482us dev.cpu.1.%desc: ACPI CPU dev.cpu.1.%driver: cpu dev.cpu.1.%location: handle=\_PR_.CPU1 dev.cpu.1.%pnpinfo: _HID=none _UID=0 dev.cpu.1.%parent: acpi0 dev.cpu.1.cx_supported: C1/1 C2/57 dev.cpu.1.cx_lowest: C2 dev.cpu.1.cx_usage: 5.55% 94.44% last 7724us -- Demelier David
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