|Summary:||Linux 2.6.34 causes system lockup on Compaq Presario 2200 Laptop|
|Product:||ACPI||Reporter:||Maciej Rutecki (maciej.rutecki)|
|Severity:||normal||CC:||acpi-bugzilla, lenb, maciej.rutecki, rjw, rui.zhang|
|Bug Depends on:|
Description Maciej Rutecki 2010-06-06 05:57:58 UTC
Subject : Linux 2.6.34 causes system lockup on Compaq Presario 2200 Laptop Submitter : Jeffrey Merkey <email@example.com> Date : 2010-05-27 18:08 Message-ID : AANLkTil6GGSoc8TpzRacr1LZBZS3ee3H1ejYDSqfdul4@mail.gmail.com References : http://marc.info/?l=linux-kernel&m=127498375415689&w=2 This entry is being used for tracking a regression from 2.6.33. Please don't close it until the problem is fixed in the mainline.
Comment 1 Zhang Rui 2010-06-07 07:22:02 UTC
please attach the acpidump of this laptops. and attach the content of "grep . /proc/acpi/battery/*/*" when the battery status is "broken".
Comment 2 Rafael J. Wysocki 2010-06-12 21:37:56 UTC
On Saturday, June 12, 2010, Jeffrey Merkey wrote: > Not Reliably Reproducable. Looks like a firmware/hardware problem > with an old laptop. > > Jeff > > On Fri, Jun 11, 2010 at 3:19 PM, Jeffrey Merkey <firstname.lastname@example.org> wrote: > > On Fri, Jun 11, 2010 at 11:07 AM, Len Brown <email@example.com> wrote: > >> On Fri, 11 Jun 2010, Jeffrey Merkey wrote: > >> > >>> Len, > >>> > >>> I am having trouble getting a trace of this because its down hard to > >>> reproduce. The reason is the lockup happens before I log into the > >>> laptop. i.e. I boot 2.6.34 and if I let the laptop just sit there is > >>> happens. If I log in and start doing work on it, it does not seem to > >>> happen. It's related to using the laptop on battery mode with the > >>> charger removed. I have a 2U appliance setup I am working on today > >>> and this frees up the laptop to try to reproduce this. The flaky > >>> battery power misreporting was in fact accurate. The battery in that > >>> laptop is 6 years old and does have low power. I am certain the > >>> lockup if related though. I will try to reproduce today and setup the > >>> trace to run after boot. I have had it sitting there for an hour and > >>> it has not reoccurred. Let me try through today and if I cannot > >>> reproduce, close the bug. > >> > >> Good to know, Jeff. > >> > >> One possibility is that the old battery is confusing > >> the embedded controller -- possibly exposing a firmware bug. > >> The EC, in turn, is fully capable of hanging the OS. > >> > >> If you *can* reproduce it, it may be interesting to bisect > >> recent changes to drivers/acpi/ec.c > >> > >> Also, if you can reproduce it, it would be good to verify > >> that the problem occurs only when the battery driver is loaded. > >> > >> thanks, > >> -Len > >> > >>> > Please attach the output of acpidump here: > >>> > > >>> > https://bugzilla.kernel.org/show_bug.cgi?id=16136 > >> > >> We could still use this output -- note that you can > >> capture it at any time, independent of the failure, > >> and independent of the kernel -- as it is simply > >> a copy of the tables that the BIOS is exporting to Linux. > >> > >> thanks, > >> -Len Brown, Intel Open Source Technology Center > >> > > > > I can tell you for certain it does only happen when the battery driver > > is loaded. Still has not ocurred. Just rebooted it 15 minutes ago -- > > trying again. > > > > Jeff