Created attachment 314168 [details] dmesg-2.6.26.2-14.fc9.i686 Description of problem: My computer freezes. All kernels from 2.6.26 tree seems to "lock" themselves. They all stop after "Starting udev:". The dmesg doesn't show any oopses or other problems. The only change in comparison to 2.6.25 is "ACPI: Core revision 20080321" In order to go further i have to keep the backspace key pressed. then everything works normal. if i let the key everything stops again. For example in konsole, after i type a command and press enter nothing happens until i press and keep backspace pressed. Everything works fine only with the backspace pressed. The problem doesn't exist with 2.6.25 kernels. Version-Release number of selected component (if applicable): 2.6.26.2-14.fc9.i686 2.6.26.1-9.fc9.i686 How reproducible: is the kernel on aspire 5051 Steps to Reproduce: 1. 2. 3. Actual results: Everything freezes until the backspace is pressed Expected results: make it work Additional info:
Created attachment 314182 [details] dmesg acpi=off With acpi=off the system boots normally (as far as possible). I'll try another acpi options and report later.
Actually I need to keep pressed at least one key for it to work flawlesly. Not just the backspace. MAybe irq problems with keyboard?
Maybe the problem is not acpi related. the dmesg doesn't show any problems and the kernel loads fine. Maybe it is something in fedora that waits for a key stroke in order to procede. Maybe DCOP. I tested (a while ago on FC8) 2.6.27-0.173.rc0.git11.fc8.i686 (ACPI Corerevision 20080609)and everything was fine. Version 2.6.27-0.254.rc3.fc9.i686 freezes. Any Ideas? OS or Kernel?
I patched the 2.6.26.2 kernel with acpi-test-20080609-rc8 from http://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/patches/test/2.6.26/acpi-test-20080609-2.6.26-rc8.diff.gz but the problem is still there. Kernels that work: 2.6.25.14-108.fc9 and previous 2.6.27-0.173.rc0.git11.fc9 Kernels that don't work: 2.6.26.1-9.fc9 2.6.26.2-14.fc9 2.6.27-0.254.rc3.fc9 So there should be something between 0.173.rc0.git11 and 0.254.rc3 that doesn't work for me. Anyone, any ideas?
I kept trying the other kernels to see if they hang. This is what I found (from the 2.6.27 series) up to 2.6.27-0.238.rc2.fc9.i686 everything is fine but with 0.238 I have no display. Just a black screen. I tried removing the noeuvo + drm patch but it didn't help. applyung acpica-20080608 doesn't resolve the problem too. So i decided to try the 2.6.26.2-14-fc9 with udevdebug - virtually millions of messages were shown on the screen and nothing else. I changed the wait_for_queue() in /sbin/start_udev to return 0 after local ret=0 and this helped me to overcome the freeze at startup. but lots of devices weren't working after this. My assumption is that udev isn't initializing something properly, or it is blocked by selinux (see the dmesg-debug-udev) and therefore it waits indefinitely at startup.
Created attachment 314815 [details] dmesg-debug-udev
The udev works fine with the 2.6.25.14-108 kernel. Why shouldn't it do the same with 2.6.26? I read on phoronix and other forums that the TTM was replaced by GEM in the kernel. At the same time D. Airlie has merged many drm patches in the fedora kernel. And this is the common thing between the 2.6.26.3 kernel and the 2.6.27-0.284.rc4.git6.fc10. With the latest I see "starting udev" and then I got black and white stips on the display. Nothing else can be seen or done. Therefore I think not the udev but something in the kernel conserning the modesetting on my radeon RS482 is causing the problem.It all started with the kernel update. Let's see what the drm-devels think.
kernel-2.6.26.3-27.fc9 has been submitted as an update for Fedora 9. http://admin.fedoraproject.org/updates/kernel-2.6.26.3-27.fc9
Created attachment 315492 [details] linux-2.6-x86-32-amd-c1e-force-timer-broadcast-late.patch This patch fixes the problem. I tried it with 2.6.26.3-17.fc9 and 2.6.27-0.290.rc5.fc10. Everything is fine. Maybe it hould be integrated in the 2.6.27 branch. The bug is resolved.
kernel-2.6.26.3-29.fc9 has been submitted as an update for Fedora 9. http://admin.fedoraproject.org/updates/kernel-2.6.26.3-29.fc9
kernel-2.6.26.3-29.fc9 has been pushed to the Fedora 9 stable repository. If problems still persist, please make note of it in this bug report.
Dell d820 kernel-2.6.26.3-29.fc9.i686 hangs at "Starting UDEV:" older kernels work just fine. What else should I include about system that would help?
kernel-2.6.26.3-29.fc9.i686 hangs after decompression
my 2.6.26.3-29 started hanging after i installed vmware server 2. could be a coincidence, but...