I can confirm this bug with natty-desktop-i386.iso 01/05/2011 Checksum OK DVD-RW burned with K3b "Verify written data" OK Check disc for defects: No errors found Inspite of the regularly Kernel panic in Live sessons, I was able to install Natty on two different PC's and one laptop
To capture the some of the kernel panics, I followed these instructions https://wiki.kubuntu.org/Kernel/Netconsole I also added as boot option: panic=20 This is the kernel panic, captured from my ThinkPad R61i 8932GM laptop [ 5887.663623] EXT4-fs (sda10): re-mounted. Opts: (null) [ 5887.791037] md: stopping all md devices. [ 5888.786178] sd 2:0:0:0: [sda] Synchronizing SCSI cache [ 5888.822865] r852 0000:15:00.5: PCI INT C disabled [ 5888.825375] ehci_hcd 0000:00:1d.7: PCI INT D disabled [ 5888.828041] ehci_hcd 0000:00:1a.7: PCI INT C disabled [ 5888.830253] Restarting system. [ 5889.978958] irq 18: nobody cared (try booting with the "irqpoll" option) [ 5889.980008] Pid: 1811, comm: reboot Not tainted 2.6.37-11-generic #25-Ubuntu [ 5889.980008] Call Trace: [ 5889.980008] [<c05f93ae>] ? printk+0x30/0x32 [ 5889.980008] [<c01b306c>] __report_bad_irq.clone.2+0x2c/0x90 [ 5889.980008] [<c01b1cbc>] ? handle_IRQ_event+0x4c/0x160 [ 5889.980008] [<c01b33ba>] note_interrupt+0x15a/0x1a0 [ 5889.980008] [<c01b4014>] handle_fasteoi_irq+0xb4/0xe0 [ 5889.980008] [<c01b3f60>] ? handle_fasteoi_irq+0x0/0xe0 [ 5889.980008] <IRQ> [<c0602a69>] ? do_IRQ+0x49/0xc0 [ 5889.980008] [<c0156e1c>] ? irq_exit+0x3c/0x80 [ 5889.980008] [<c0602b3b>] ? smp_apic_timer_interrupt+0x5b/0x8a [ 5889.980008] [<c0156bf0>] ? __do_softirq+0x0/0x180 [ 5889.980008] [<c0103770>] ? common_interrupt+0x30/0x38 [ 5889.980008] [<c0156bf0>] ? __do_softirq+0x0/0x180 [ 5889.980008] [<c0156c35>] ? __do_softirq+0x45/0x180 [ 5889.980008] [<c0156bf0>] ? __do_softirq+0x0/0x180 [ 5889.980008] <IRQ> [<c0156e4d>] ? irq_exit+0x6d/0x80 [ 5889.980008] [<c0602b3b>] ? smp_apic_timer_interrupt+0x5b/0x8a [ 5889.980008] [<c015007e>] ? _call_console_drivers+0x4e/0x90 [ 5889.980008] [<c05fc2d9>] ? apic_timer_interrupt+0x31/0x38 [ 5889.980008] [<c015007b>] ? _call_console_drivers+0x4b/0x90 [ 5889.980008] [<c015086d>] ? vprintk+0x16d/0x3f0 [ 5889.980008] [<c042649a>] ? sysdev_shutdown+0x6a/0xc0 [ 5889.980008] [<c05f93ae>] ? printk+0x30/0x32 [ 5889.980008] [<c0164234>] ? kernel_restart+0x44/0x60 [ 5889.980008] [<c01643cd>] ? sys_reboot+0x15d/0x1d0 [ 5889.980008] [<c01415c4>] ? enqueue_entity+0x184/0x210 [ 5889.980008] [<c014197a>] ? enqueue_task_fair+0x4a/0x50 [ 5889.980008] [<c0138842>] ? resched_task+0x22/0x70 [ 5889.980008] [<c01388f5>] ? check_preempt_curr+0x65/0x90 [ 5889.980008] [<c0149f93>] ? try_to_wake_up+0x223/0x3c0 [ 5889.980008] [<c05fb976>] ? _raw_spin_unlock_bh+0x16/0x20 [ 5889.980008] [<c0245390>] ? bdi_queue_work+0x60/0xd0 [ 5889.980008] [<c0245703>] ? __bdi_start_writeback+0x83/0x140 [ 5889.980008] [<c0229305>] ? iterate_supers+0xa5/0xb0 [ 5889.980008] [<c024a430>] ? sync_one_sb+0x0/0x30 [ 5889.980008] [<c05fbe54>] ? syscall_call+0x7/0xb [ 5889.980008] handlers: [ 5889.980008] [<c0498630>] (usb_hcd_irq+0x0/0x80) [ 5889.980008] [<f8075b20>] (sdhci_irq+0x0/0x1a8 [sdhci]) [ 5889.980008] [<f8759ac0>] (r852_irq+0x0/0x2b0 [r852]) [ 5889.980008] Disabling IRQ #18 [ 5890.091152] machine restart On my R61i laptop, I did try the recommended boot option irqpoll I also did try boot option noapic nolapic But the kernel panics still occur -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/694993 Title: Sometimes, when I boot, the PC makes a kernel panic, and Caps Lock and Scroll Lock LEDs are blinking -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
