Kernel panic on boot. 3.5.7 does not have this problem. This describes the problem I'm seeing and has a patch that may fix it: https://patchwork.kernel.org/patch/1730471/ The hardware I believe to be involved is my PCIe ssd card, which uses a PCI bridge chip to expose the devices behind it. The code in the section that the above patch addresses has changed significantly between 3.5.7 and 3.6.11 leading me to believe the patch is relevant. Reproducible: Always Steps to Reproduce: 1. build 3.6.11 with same .config as 3.5.7 2. install new kernel 3. boot new kernel Actual Results: kernel panic Expected Results: no kernel panic--successful boot. ------------[ cut here ]------------ WARNING: at arch/x86/kernel/smp.c:123 update_process_times+0x65/0x80() Hardware name: To Be Filled By O.E.M. Modules linked in: Pid: 1, comm: swapper/0 Not tainted 3.6.11-gentoo #2 Call Trace: <IRQ> [<ffffffff8106f4fb>] ? warn_slowpath_common+0x7b/0xc0 [<ffffffff810a7c90>] ? tick_nohz_handler+0xd0/0xd0 [<ffffffff8107c9a5>] ? update_process_times+0x65/0x80 [<ffffffff810a7d03>] ? tick_sched_timer+0x73/0xc0 [<ffffffff8108fbde>] ? __run_hrtimer.irsa.32+0x4e/0xe0 [<ffffffff810903e4>] ? hrtimer_interrupt+0xf4/0x260 [<ffffffff8105cca3>] ? smp_apic_timer_interrupt+0x63/0xa0 [<ffffffff815e6fc7>] ? apic_timer_interrupt+0x67/0x70 <EOI> [<ffffffff815dde18>] ? panic+0x181/0x1b8 [<ffffffff8184ce61>] ? mount_block_root+0x1d3/0x279 [<ffffffff81002933>] ? kvm_free_physmem+0x43/0x50 [<ffffffff8184d22a>] ? prepare_namespace+0x15d/0x193 [<ffffffff8184cbea>] ? kernel_init+0x17b/0x180 [<ffffffff8184c568>] ? do_early_param+0x7d/0x7d [<ffffffff815e75b4>] ? kernel_thread_helper+0x4/0x10 [<ffffffff8184ca6f>] ? start_kernel+0x2c9/0x2c9 [<ffffffff815e75b0>] ? gs_change+0xb/0xb ---[ end trace 1c5cf32b598c7985 ]---
Please don't change the importance, the maintainers will change this if needed. > This describes the problem I'm seeing and has a patch that may fix it Your stack trace is different, can you try to apply the patch to confirm?
Maybe even test newer kernels to see if this issue replicates.
Still up through 3.10.x this is not fixed. I'm still running 3.5.7--it's the only kernel I've been able to boot.
> [<ffffffff8184ce61>] ? mount_block_root+0x1d3/0x279 Didn't spot this first time, this seems to indicate that you are not building in your hard drive controller (eg. SATA) into the kernel, not have built your file system into the kernel (eg. EXT4), are missing an initramfs in case of some kind of RAID or CRYPT solution or so, perhaps haven't enabled CONFIG_TMPFS or CONFIG_DEVTMPFS or are missing the root= parameter on the kernel command line. Could you please verify everything needed to be able to mount /root is in place?
(In reply to Tom Wijsman (TomWij) from comment #4) > Could you please verify everything needed to be able to mount /root is in > place?
