2010/5/25 Giovanni Trematerra <giovanni.tremate...@gmail.com>: > On Mon, May 24, 2010 at 9:43 PM, David DEMELIER > <demelier.da...@gmail.com> wrote: >> 2010/5/12 Giovanni Trematerra <giovanni.tremate...@gmail.com>: >>> On Fri, May 7, 2010 at 8:33 PM, Demelier David <demelier.da...@gmail.com> >>> wrote: >>>> Le Vendredi 07 mai 2010 à 18:22 +0200, Giovanni Trematerra a écrit : >>>>> On Fri, May 7, 2010 at 2:08 PM, Demelier David <demelier.da...@gmail.com> >>>>> wrote: >>>>> > Hi, >>>>> > I noticed that pluggin the AC adaptor when I boot without it >>>>> > does not >>>>> > panic. It only panic when removing it. >>>>> > >>>>> > Maybe that could help ? >>>>> > >>>>> >>>>> Good to know. The problem lies somewhere when performance state change. >>>>> In your case it happens when you remove AC adaptor. Let's hope someone on >>>>> acpi@ ml comes up with a good idea. >>>>> >>>> >>>> Okay so for the moment no change, I'll wait for someone with an idea >>>> that could solve my problem. For me because the panic only happens when >>>> changing profile from ac plugged -> ac unplugged (and not the reverse) I >>>> would think it's a cpu related acpi issue. >>>> >>> >>> I looked deeper and it seems to me that when you unplug the AC >>> adapter, acpi_cpu_notify calls acpi_cpu_cx_cst that try to allocate a >>> new cx_ptr->p_lvlx via acpi_PkgGas. >>> If acpi_PkgGas set cx_ptr->p_lvlx to NULL for any reasons you'll have >>> the panic that you reported. >>> A solution would be to set acpi_cpu_hook to NULL so acpi_cpu_idle won't >>> call it. >>> I need some time to have a patch because of the possible race between >>> acpi_cpu_notify and >>> acpi_cpu_idle during set acpi_cpu_hook to NULL. >>> if you have time and want panic your system you could try the attached >>> patch, just to be >>> sure that we catch it. >>> >> >> Hi, it paniced today ! I don't know why it randomly panic but it did, >> the backtrace didn't change. There is a picture about the panic : >> >> http://img541.imageshack.us/img541/2773/dsc00388xa.jpg > > What was you trying? acpi_idle5.diff.txt patch? > How did it panic? Unplugging AC adapter? >
Hi, I tried this one : lvlx.diff.txt. Yes by unplugging the AC adapter. -- Demelier David _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
