Re: Periodic Fedora 9 system hangs with jumpy mouse

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Jun 24, 2008 at 1:11 PM, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote:
>> When the system hangs, the mouse cursor will continue to move, but
>> it is very jumpy and sluggish.  But otherwise the system is completely
>> unresponsive (not just slow).
>
> That sounds like it suddenly ran out of memory.
>
> Try
>
>        echo "2" >/proc/sys/vm/overcommit_memory
>        echo "80" >/proc/sys/vm/overcommit_ration
>
> and see if instead you suddenly see lots of out of memory errors and
> applications going away

BTW, that's _ratio, not _ration.

Prior to this, those parameters were 0 and 50 respectively.

Ah, yes, as soon as I ran the first command, my X11 session
immediately aborted and I got sent back to the gdm login.

Although my memory use should have been pretty small
at the time (I had just rebooted so only a terminal window and
a single Firefox tab were running).


> Does anything make /var/log/messages ?

Prior to changing the kernel flags above, no, nothing ever
showed up in syslog.  But after this I saw something like this
right at the point of running the first command above:

Jun 24 14:03:44 deron kernel: [drm] Num pipes: 1
Jun 24 14:03:44 deron udevd[545]: udev_event_run: fork of child
failed: Cannot allocate memory
Jun 24 14:03:44 deron udevd[545]: udev_event_run: fork of child
failed: Cannot allocate memory
Jun 24 14:03:45 deron restorecond: Will not restore a file with more
than one hard link (/etc/resolv.conf) Cannot allocate memory
Jun 24 14:03:45 deron kernel: tomboy[2973]: segfault at 8968548 ip
08968548 sp bfaeab7c error 4
Jun 24 14:03:45 deron acpid: client connected from 4262[0:0]
Jun 24 14:03:45 deron bonobo-activation-server (dem-4259): could not
associate with desktop session: Failed to connect to socket /t
mp/dbus-vx4vmi4BAf: Connection refused
Jun 24 14:03:46 deron kernel: agpgart: Found an AGP 3.0 compliant
device at 0000:00:00.0.
Jun 24 14:03:46 deron kernel: agpgart: Putting AGP V3 device at
0000:00:00.0 into 8x mode
Jun 24 14:03:46 deron kernel: agpgart: Putting AGP V3 device at
0000:01:00.0 into 8x mode
Jun 24 14:03:47 deron kernel: [drm] Setting GART location based on new
memory map
Jun 24 14:03:47 deron kernel: [drm] Loading R300 Microcode
Jun 24 14:03:47 deron kernel: [drm] Num pipes: 1
Jun 24 14:03:47 deron kernel: [drm] writeback test succeeded in 1 usecs

Other than the udev errors, I don't know what to make of the others.


>> This system is a Dell Optiplex GX270 (4-5 yrs old) with a Pentium 4 3GHz cpu
>> with hyperthreading enabled, 1 MB ram.  I am using LVM and LUKS encryption
>> on the swap and /home.
>
> 1MB or 1GB. 1MB might be a bit slow so I suspect the latter ;)

Yes, a typo, 1 GiB physical memory.


> I wonder if LUKS + swap might be the first suspect

Well, I looked a little closer and it may be my fault.  The LVM
I have swap in was only 32 MB in size, not the 32 GB I had
intended!  So my swap is way smaller than my physical memory.

Would that excessively small swap space size had resulted
in the abrupt hanging behavior I had witnessed?

I'm going to try to resize things and get my swap back up
to 32 GB.  A little tricky due to LUKS being in the mix, but
I should be able to do it.


>> The only hardware change in the system was replacing my old PCI graphics
>> card (Matrox Millenium II) with a brand new ATI Stealth X1050 AGP.  This was
>> necessary because the F9 graphical install was unusable; as the old card only
>> had VGA output and the installer's X11 could not properly auto-detect the LCD
>> widescreen monitor and was trying to drive it at too high a frequency.  I needed
>> to have DVI output for the F9 graphical install to work; so I had to get a new
>> video card.
>
> Which video driver are you using ?

The Fedora supplied driver, not the ATI add-on.  I'm can't remember how
to figure out which X driver is being used anymore.

Thanks Alan
-- 
Deron Meranda

-- 
fedora-list mailing list
fedora-list@xxxxxxxxxx
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
[Index of Archives]     [Older Fedora Users]     [Fedora Announce]     [Fedora Package Announce]     [EPEL Announce]     [Fedora Magazine]     [Fedora News]     [Fedora Summer Coding]     [Fedora Laptop]     [Fedora Cloud]     [Fedora Advisory Board]     [Fedora Education]     [Fedora Security]     [Fedora Scitech]     [Fedora Robotics]     [Fedora Maintainers]     [Fedora Infrastructure]     [Fedora Websites]     [Anaconda Devel]     [Fedora Devel Java]     [Fedora Legacy]     [Fedora Desktop]     [Fedora Fonts]     [ATA RAID]     [Fedora Marketing]     [Fedora Management Tools]     [Fedora Mentors]     [SSH]     [Fedora Package Review]     [Fedora R Devel]     [Fedora PHP Devel]     [Kickstart]     [Fedora Music]     [Fedora Packaging]     [Centos]     [Fedora SELinux]     [Fedora Legal]     [Fedora Kernel]     [Fedora OCaml]     [Coolkey]     [Virtualization Tools]     [ET Management Tools]     [Yum Users]     [Tux]     [Yosemite News]     [Gnome Users]     [KDE Users]     [Fedora Art]     [Fedora Docs]     [Asterisk PBX]     [Fedora Sparc]     [Fedora Universal Network Connector]     [Libvirt Users]     [Fedora ARM]

  Powered by Linux