Bug 868459

Summary: New kernels 3.6.2 and 3.6.1 do not boot
Product: [Fedora] Fedora Reporter: joe.eli.mac
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED WORKSFORME QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: urgent Docs Contact:
Priority: unspecified    
Version: 17CC: gansalmon, itamar, jonathan, kernel-maint, lqqueres, madhu.chinakonda
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-10-20 00:32:41 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description joe.eli.mac 2012-10-19 23:56:50 UTC 
Description of problem:
Kernel panic when booting with kernel 3.6.2 or 3.6.1.  Kernel 3.5.6 still works for me and is the only way to boot my fedora machine.

Version-Release number of selected component (if applicable):
Name        : kernel
Arch        : x86_64
Version     : 3.6.2
Release     : 4.fc17

How reproducible:
Every time.

Steps to Reproduce:
1. Reboot computer
2. At Grub2 screen, choose latest kernel of Fedora (Fedora (3.6.2-4.fc17.x86_64)) or allow it to be chosen by default after the wait interval expires
3. Wait a few seconds for the kernel to panic
  
Actual results:
System fails to boot, with a kernel panic error screen reading:

"
Loading Fedora (3.6.2-4.fc17.x86_64)
Loading initial ramdisk ...
[    1.985582] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[    1.985667] Pid: 1, comm: swapper/0 Not tainted 3.6.2-4.fc17.x86_64 #1
[    1.985738] Call Trace:
[    1.985810]  [<ffffffff81610554>] panic+0xc1/0x1d0
[    1.985881]  [<ffffffff81cfc0a2>] mount_block_root+0x1d6/0x287
[    1.985952]  [<ffffffff81cfc1aa>] mount_root+0x57/0x5b
[    1.986023]  [<ffffffff81cfc2eb>] prepare_namespace+0x13d/0x176
[    1.986100]  [<ffffffff81085cc0>] ? release_tgcred.isra.7+0x30/0x30
[    1.986173]  [<ffffffff81cfbe08>] kernel_init+0x1cf/0x1d4
[    1.986243]  [<ffffffff81cfb614>] ? do_early_param+0x8c/0x8c
[    1.986317]  [<ffffffff81623884>] kernel_thread_helper+0x4/0x10
[    1.986389]  [<ffffffff81cfbc39>] ? start_kernel+0x3c6/0x3c6
[    1.986459]  [<ffffffff81623880>] ? gs_change+0x13/0x13
"

Expected results:
A normal system boot

Hardware:
Samsung RC512-S01 Laptop with all stock components

Output of lspci -v:

"
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
	Subsystem: Samsung Electronics Co Ltd Device c0ae
	Flags: bus master, fast devsel, latency 0
	Capabilities: <access denied>
	Kernel driver in use: agpgart-intel

00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 0000d000-0000dfff
	Memory behind bridge: f4000000-f50fffff
	Prefetchable memory behind bridge: 00000000d0000000-00000000e1ffffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
	Subsystem: Samsung Electronics Co Ltd Device c0ae
	Flags: bus master, fast devsel, latency 0, IRQ 50
	Memory at f5400000 (64-bit, non-prefetchable) [size=4M]
	Memory at c0000000 (64-bit, prefetchable) [size=256M]
	I/O ports at e000 [size=64]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: <access denied>
	Kernel driver in use: i915

00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
	Subsystem: Samsung Electronics Co Ltd Device c0ae
	Flags: bus master, fast devsel, latency 0, IRQ 51
	Memory at f760a000 (64-bit, non-prefetchable) [size=16]
	Capabilities: <access denied>
	Kernel driver in use: mei

00:1a.0 USB Controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI])
	Subsystem: Samsung Electronics Co Ltd Device c0ae
	Flags: bus master, medium devsel, latency 0, IRQ 16
	Memory at f7608000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci_hcd

00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
	Subsystem: Samsung Electronics Co Ltd Device c0ae
	Flags: bus master, fast devsel, latency 0, IRQ 54
	Memory at f7600000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel

00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	I/O behind bridge: 0000c000-0000cfff
	Memory behind bridge: f6c00000-f75fffff
	Prefetchable memory behind bridge: 00000000e3700000-00000000e40fffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
	I/O behind bridge: 0000b000-0000bfff
	Memory behind bridge: f6200000-f6bfffff
	Prefetchable memory behind bridge: 00000000e2c00000-00000000e35fffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4) (prog-if 00 [Normal decode])
	Flags: bus master, fast devsel, latency 0
	Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
	I/O behind bridge: 0000a000-0000afff
	Memory behind bridge: f5800000-f61fffff
	Prefetchable memory behind bridge: 00000000e2100000-00000000e2afffff
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1d.0 USB Controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI])
	Subsystem: Samsung Electronics Co Ltd Device c0ae
	Flags: bus master, medium devsel, latency 0, IRQ 23
	Memory at f7607000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci_hcd

00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 04)
	Subsystem: Samsung Electronics Co Ltd Device c0ae
	Flags: bus master, medium devsel, latency 0
	Capabilities: <access denied>

00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) (prog-if 01 [AHCI 1.0])
	Subsystem: Samsung Electronics Co Ltd Device c0ae
	Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 41
	I/O ports at e0b0 [size=8]
	I/O ports at e0a0 [size=4]
	I/O ports at e090 [size=8]
	I/O ports at e080 [size=4]
	I/O ports at e060 [size=32]
	Memory at f7606000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci

00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
	Subsystem: Samsung Electronics Co Ltd Device c0ae
	Flags: medium devsel, IRQ 18
	Memory at f7605000 (64-bit, non-prefetchable) [size=256]
	I/O ports at e040 [size=32]

01:00.0 3D controller: nVidia Corporation Device 0dec (rev a1)
	Subsystem: Samsung Electronics Co Ltd Device c0ae
	Flags: bus master, fast devsel, latency 0, IRQ 16
	Memory at f4000000 (32-bit, non-prefetchable) [size=16M]
	Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Memory at e0000000 (64-bit, prefetchable) [size=32M]
	I/O ports at d000 [size=128]
	Expansion ROM at f5000000 [disabled] [size=512K]
	Capabilities: <access denied>
	Kernel driver in use: nouveau

02:00.0 Network controller: Intel Corporation Centrino Advanced-N + WiMAX 6250 (rev 5f)
	Subsystem: Intel Corporation Centrino Advanced-N + WiMAX 6250 2x2 AGN
	Flags: bus master, fast devsel, latency 0, IRQ 53
	Memory at f6c00000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: iwlwifi

03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
	Subsystem: Samsung Electronics Co Ltd Device c0ae
	Flags: bus master, fast devsel, latency 0, IRQ 52
	I/O ports at b000 [size=256]
	Memory at e2c04000 (64-bit, prefetchable) [size=4K]
	Memory at e2c00000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169

04:00.0 USB Controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) (prog-if 30 [XHCI])
	Subsystem: Samsung Electronics Co Ltd Device c0ae
	Flags: bus master, fast devsel, latency 0, IRQ 16
	Memory at f5800000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd
"
Comment 1 joe.eli.mac 2012-10-20 00:32:41 UTC 
With the help of some friendly IRC folk, was able to regenerate my grub.cfg:

grub2-mkconfig -o /boot/grub2/grub.cfg

The two new kernel menu options were missing their initrd lines...