Messages in this thread | | | Date | Mon, 29 Sep 2003 11:01:49 -0700 (PDT) | From | Bradley Chapman <> | Subject | Re: [BUG] Defunct event/0 processes under 2.6.0-test6-mm1 |
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Mr. Torokhov,
--- Dmitry Torokhov <dtor_core@ameritech.net> wrote: > On Monday 29 September 2003 12:49 pm, Bradley Chapman wrote: > > Mr. Torokhov, > > > > --- Dmitry Torokhov <dtor_core@ameritech.net> wrote: > > > On Monday 29 September 2003 11:41 am, Andrew Morton wrote: > > > > Bradley Chapman <kakadu_croc@yahoo.com> wrote: > > > > > I am experiencing defunct event/0 kernel daemons under > > > > > 2.6.0-test6-mm1 with synaptics_drv 0.11.7, Dmitry Torokhov's > > > > > gpm-1.20 with synaptics support, and XFree86 4.3.0-10. Moving the > > > > > touchpad in either X or with gpm causes defunct event/0 processes > > > > > to be created. > > > > > > > > Defunct is odd. Have you run `dmesg' to see if the kernel oopsed? > > > > > > > > You could try reverting synaptics-reconnect.patch, and then > > > > serio-reconnect.patch from > > > > > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.0 > > > >-tes t6/2.6.0-test6-mm1/broken-out > > > > > > Input subsystem uses only one kernel thread called kseriod, not > > > eventsX. I think it's not synaptics/serio reconnect but other patch > > > you mentioned (call_usermodehelper-retval-fix-2.patch) > > > > OK. I'll try reverting that one too. I'm inclined to agree that it > > could be the problem, because I noticed one more thing before I > > rebooted to 2.6.0-test6. > > > > I recently installed the latest RH9 hotplug packages from the hotplug > > Sourceforge website. Under 2.6.0-test6-mm1 the hotplug initscript > > leaves a defunct hotplug process along with the other events/0 defunct > > processes. Does this mean anything? > > > > The hotplug version is hotplug-2003_08_05-1. > > Othe people reported that reverting call_suserhelper patch resolved their > eventsX/hotplug zombies problem.
Yup! I'm running 2.6.0-test6-mm1 with synaptics-reconnect, serio-reconnect and call_usermodehlper-retval-fix reverted, and no more zombies. It was the call_usermodehelper reversion that fixed it. I looked at the patch and it appears to mess with SIGCHLD signal handling and the kernel stack. How would that mess up hotplug and the events/0 kernel thread?
> > Btw, GPM does not work with test6 or test6-mm yet, I will hopefully have > the upated version later tonight.
Yes it does ;-)
On both 2.6.0-test6, 2.6.0-test6-mm1 full and 2.6.0-test6-mm1 minus the three patches I mentioned above, the touchpad does work (at least it moves the cursor and clicks).
> > Dmitry
Brad
===== Brad Chapman
Permanent e-mail: kakadu_croc@yahoo.com
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