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? Thanks -- Gianni _______________________________________________ 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"
