randallw, thank you for reporting this bug and helping make Ubuntu
better. This bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue?
Can you try with the latest development release of Ubuntu? ISO CD images
are available from
Hi
I have a similar problem.
I have a problem with my Ubuntu 10.10. I had problem with installation too. If
I boot live cd my system after login into desktop freezes after 10-15 seconds.
I had to go in installation process and hit F6 and check : noacpi=off, noapic,
nolapic, edd=on (Im not
Hi Predrag,
Did you try your old graphics card? Did you try the nolapic_timer
option?
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https://bugs.launchpad.net/bugs/659705
Title:
hard lock (hang) after a few minutes with APIC
** Changed in: linux (Ubuntu)
Status: New = Confirmed
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https://bugs.launchpad.net/bugs/659705
Title:
hard lock (hang) after a few minutes with APIC enabled
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Jason,
I have the same problem on a Samsung X360. It *was* only occurring on battery
mode, but recently it has started occurring when I'm plugged as well.
Linux niflino 2.6.35-24-generic #42-Ubuntu SMP Thu Dec 2 02:41:37 UTC 2010
x86_64 GNU/Linux
I've just set the nolapic_timer in my
Hi Jason,
That is interesting. Just so we're 100% clear: your hard-lockup is still
related to APIC bios/kernel options, right? So you can avoid the lockups like
me by using the nolapic_timer kernel command-line option or by disabling APIC?
Does your laptop use some sort of CPU frequency scaling
I have traced this down to only occurring while in battery mode on my
Samsung X360. It occurs seemingly random, but it is accompanied by a
hard drive spindown. I have had this issue since 9.04.
Currently the only workaround that reduces the probability of a hard
lockup is setting:
hdparm -S 0
An update: I have been experimenting with kernel command-line params for
APIC. Adding noapic make no difference- you still get all CPUs
appearing and it still crashes after a few minutes. Adding nolapic has
the same effect as disabling APIC in the bios: the system is stable, but
you only get 1
** Attachment added: with the nolapic_timer kernel option
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/659705/+attachment/1713617/+files/dmesg_nolapic_timer.txt
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hard lock (hang) after a few minutes with APIC enabled
https://bugs.launchpad.net/bugs/659705
You received this bug
** Attachment added: with apic debugging messages turned on
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/659705/+attachment/1713619/+files/dmesg_apic_debug.txt
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hard lock (hang) after a few minutes with APIC enabled
https://bugs.launchpad.net/bugs/659705
You received this bug
** Attachment added: with the noapic kernel parameter
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/659705/+attachment/1713618/+files/dmesg_noapic.txt
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hard lock (hang) after a few minutes with APIC enabled
https://bugs.launchpad.net/bugs/659705
You received this bug notification
** Attachment added: AlsaDevices.txt
https://bugs.launchpad.net/bugs/659705/+attachment/1690161/+files/AlsaDevices.txt
** Attachment added: AplayDevices.txt
https://bugs.launchpad.net/bugs/659705/+attachment/1690162/+files/AplayDevices.txt
** Attachment added: ArecordDevices.txt
This is the output of dmesg when the APIC option in the bios is enabled
(default) about 10 seconds before it crashed.
** Attachment added: dmesg2.txt
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/659705/+attachment/1690209/+files/dmesg2.txt
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hard lock (hang) after a few minutes
Here is the dmesg output for the mainline kernel
2.6.32-0206322410-generic. This also hangs, although it wasn't an
immediate hard lockup. First the input from the usb keyboard seemed to
die (mouse still worked). I tried switching to a text terminal to grab
output, but it had hung by the time I got
Here is the mainline kernel dmesg output with the APIC option disabled
in the bios. Seems stable again (using it now), but again only 1 core of
4 core CPU.
** Attachment added: dmesg_mainline1_noapic.txt
This is the dmesg output that contains some interesting errors, however
the system hung many seconds after the errors appeared in the log. In
all cases, I am doing a tail -f /var/log/messages and nothing ever
appears immediately before the system hangs. So the errors that appear
in this log might
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