[Bug 217815] Re: Installation stalls randomly until a key is pressed
Declined nominations for karmic/lucid since that was fixed a long time ago... Please open a new bug if you experience the same symptoms on karmic/lucid. -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
Re: [Bug 217815] Re: Installation stalls randomly until a key is pressed
On Mon, Apr 21, 2008 at 09:19:23PM -, Colin Watson wrote: Derek: There's no screensaver in d-i. Screen blanking is a distant possibility, though. The default screen blanking interval set by the kernel is 10 minutes, and d-i doesn't change this; if the failure happens after 10 minutes (or nearby, to allow for possible clock skew inside kvm) then that would provide some circumstantial support for this. If that were the case, I'd expect the progress bar to jump if it was paused for a few minutes, though no one has mentioned that. -- - mdz -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
It maybe worth booting with clocksource set to one of the alternative clocksources available on your machine. One can see which clocksources are available using: cat /sys/devices/system/clocksource/clocksource0/available_clocksource and then boot with clocksource=xxx (where xxx is one of the clocksoures). I cannot test this as I don't have the ability to run kvm on my hardware setup here. Can somebody try this and checks if it helps or not. -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
Changing package to kvm as it seems we've isolated the offending patch now. ** Changed in: kvm (Ubuntu) Sourcepackagename: linux = kvm Status: Confirmed = In Progress -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
I get this problem on real hardware, _not_ KVM. In my comment above I list the model and specs for reference. I also reference that in bug #217849. -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
** Changed in: kvm (Ubuntu) Target: ubuntu-8.04.1 = ubuntu-8.04 -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
This bug was fixed in the package kvm - 1:62+dfsg-0ubuntu7 --- kvm (1:62+dfsg-0ubuntu7) hardy; urgency=low * Revert sighandler.patch and virtio_hang.patch. Fixes hang in installer and likely other places, too. (LP: #217815) -- Soren Hansen [EMAIL PROTECTED] Tue, 22 Apr 2008 19:09:33 +0200 ** Changed in: kvm (Ubuntu) Status: In Progress = Fix Released -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
A couple of points worth mulling over to corner this one.. 1. Is the hanging a function of memory size - for example, the buffer cache filling up after a certain amount of time and then pdflush kicking in very aggressively doing dirty data writing backs as fast as it can. In which case, one may see the system resume again after a (long) period of time once pdflush is complete. It may be worth tweaking with the /proc/sys/vm/dirty* options to see if this trips the problem more frequently. Also, it may be worth seeing if doing the install with small memory kvm virtual machines shows this problem earlier than large memory virtual machines just to see if it is a buffer cache write back cpu starvation issue. 2. From my understanding dd is being used to zero the encrypted disk. Does changing the dd block size to a very large size trip this bug earlier as one gets more throughput than the normal (small) block size default? 3. Is the hanging resumed by an external interrupt (keyboard, mouse) because of the scheduler boosts interactive sessions temporarily and hence interfering (in a positive way) to the balancing of the encryption kernel space thread, dd and pdflush? -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
Up to date hardy with kvm 1:62+dfsg-0ubuntu6 still hangs. Note that this time I tried it with the same command as I did in my last comment (eg, kvm/xtightvncviewer and not virt-manager). Last few times it stopped in 'Erasing data on SCSI1...'. Getting back to Soren's comment on default_idle-- whenever the install hangs, CPU utilization on the host by the guest goes to '0'. Normally during the installer it is around 100% on one of the host CPUs (when not waiting for a response from the user). Also note that if not using virt-manager and gtkvnc (ie you use xtightvncviewer or possibly other vnc clients), it seems all you have to do to get it unhung is drag the mouse over the window (the window does not need to be the active window either). This must be a difference between vnc implementations. So when testing this, be *very* careful about mouse movements over the installer window. -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
There is no fault on the test I just ran using the image 20080421 on hardware. If possible could the original report please test and see if he still has the issue with the new cd? -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
Re: [Bug 217815] Re: Installation stalls randomly until a key is pressed
On Mon, Apr 21, 2008 at 10:13 AM, davmor2 [EMAIL PROTECTED] wrote: There is no fault on the test I just ran using the image 20080421 on hardware. If possible could the original report please test and see if he still has the issue with the new cd? I am downloading the that ISO now, I will run it on my problem machine and report back tonight. -- -Regards- -Quentin Hartman- ** Attachment added: unnamed http://launchpadlibrarian.net/13653944/unnamed -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
I do not have a hang in the disk erase with the 20080421 image, as disk erase has been removed, but I just got a stall in Installing the base system within KVM... Pressing a key made the process move forward, as previously. -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
I do not have this problem either with the 20080421 image. -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
Derek: There's no screensaver in d-i. Screen blanking is a distant possibility, though. The default screen blanking interval set by the kernel is 10 minutes, and d-i doesn't change this; if the failure happens after 10 minutes (or nearby, to allow for possible clock skew inside kvm) then that would provide some circumstantial support for this. -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
Some more data points: * I've tested extensively with the i386 version now (though I haven't seen any reports of it there). I ran 3 alt i386 installs with LVM+crypto in virtualbox at the same time on a 4-core box without getting any hangs. * I ran both the i386 and amd64 versions in qemu Without the kvm HW acceleration, with no hangs. * I ran two 64 bit installs /w LVM+crypto at the same time, one allocated 384MB RAM and one allocated 2GB, both with an 8GB disk. They both seemed to stop at the same time and very frequently, every 3-4% of progress. I killed the 2GB RAM version and let the smaller one continue -- and it would stop less often every 8-10% perhaps. Running the smaller RAM version again by itself, it stalls at about every 20% (as was usual before) -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
next data point: install to a ram disk I first installed to a 2gb disk image and got hangs as usual. I then created a ram disk with 'mount -t ramfs none ram/ -o maxsize=300' and copied the 2gb image file to it. When I re-ran the installation to the store-in-ram version it completed without hangs. The physical box has 8GB RAM, and there was no disk caching. -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
... actually on a second run it got stuck in the package install phase, and stgraber reports it getting stuck in his ramdisk installs too. -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
Er... What I meant to say was, that with notsc, Lars did an install that did *NOT* trigger this bug. -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
If further testing reveals that disabling the tsc actually helps, I've prepared a kernel patch that will fix it for us: http://kernel.ubuntu.com/git?p=soren/ubuntu- hardy.git;a=commit;h=c472835957c7bce42c56aa2c57caa2e80a5bdb1a Mind you, the code is completely untested (it's getting rather late here), but it looks plausible. -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
Re: [Bug 217815] Re: Installation stalls randomly until a key is pressed
On Mon, Apr 21, 2008 at 7:16 PM, Soren Hansen [EMAIL PROTECTED] wrote: If further testing reveals that disabling the tsc actually helps, I've prepared a kernel patch that will fix it for us: http://kernel.ubuntu.com/git?p=soren/ubuntu- hardy.git;a=commit;h=c472835957c7bce42c56aa2c57caa2e80a5bdb1a Mind you, the code is completely untested (it's getting rather late here), but it looks plausible. Well I tested this on my machine here and I still see the problem, though with notsc it seems less frequent. I'm concerned that may be wishful thinking on my part. I have noticed a new behavior where the install red-screen fails during the selecting and installing packages bit towards the end of the install. I get a stall like before, but this time when I hit a key to continue, rather than carrying it, it drops me out to the red screen. Even if I go go back a few steps in the install process, it keeps giving me a red screen A installation step has failed or the like. I need to do some more testing and see if I can get it to reliably correlate to something I'm changing, but as you pointed out, it's getting late here too... -- -Regards- -Quentin Hartman- ** Attachment added: unnamed http://launchpadlibrarian.net/13777800/unnamed -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 217815] Re: Installation stalls randomly until a key is pressed
I forgot, i'm using alternate CD. On 2nd try it hangs, there was no movement on tty1 or tty4 even if i press a key -- Installation stalls randomly until a key is pressed https://bugs.launchpad.net/bugs/217815 You received this bug notification because you are a member of Ubuntu Server Team, which is a direct subscriber. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
