From: Charles Oestreich on
I am running Debian - Lenny Version 2.6.26-21 as a guest OS on VirtualBox. It crashes every shutdown, and I am hoping someone has already seen this error, and could help me fix it.

Feb  3 14:42:24 debian shutdown[4859]: shutting down for system halt
Feb  3 09:53:00 debian kernel: imklog 3.18.6, log source = /proc/kmsg started.
Feb  3 09:53:00 debian kernel: [    0.000000] Initializing cgroup subsys cpuset
Feb  3 09:53:00 debian kernel: [    0.000000] Initializing cgroup subsys cpu
Feb  3 09:53:00 debian kernel: [    0.000000] Linux version 2.6.26-2-686 (Debian 2.6.26-21) (dannf(a)debian.org) (gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-25)) #1 SMP Sat Dec 26 09:01:51 UTC 2009
Feb  3 09:53:00 debian kernel: [    0.000000] BIOS-provided physical RAM map:
Feb  3 09:53:00 debian kernel: [    0.000000]  BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
Feb  3 09:53:00 debian kernel: [    0.000000]  BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
Feb  3 09:53:00 debian kernel: [    0.000000]  BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
Feb  3 09:53:00 debian kernel: [    0.000000]  BIOS-e820: 0000000000100000 - 000000001fff0000 (usable)
Feb  3 09:53:00 debian kernel: [    0.000000]  BIOS-e820: 000000001fff0000 - 0000000020000000 (ACPI data)
Feb  3 09:53:00 debian kernel: [    0.000000]  BIOS-e820: 00000000fffc0000 - 0000000100000000 (reserved)
Feb  3 09:53:00 debian kernel: [    0.000000] WARNING: strange, CPU MTRRs all blank?
Feb  3 09:53:00 debian kernel: [    0.000000] ------------[ cut here ]------------
Feb  3 09:53:00 debian kernel: [    0.000000] WARNING: at arch/x86/kernel/cpu/mtrr/main.c:696 mtrr_trim_uncached_memory+0x178/0x183()
Feb  3 09:53:00 debian kernel: [    0.000000] Modules linked in:
Feb  3 09:53:00 debian kernel: [    0.000000] Pid: 0, comm: swapper Not tainted 2.6.26-2-686 #1
Feb  3 09:53:00 debian kernel: [    0.000000]  [<c01225f3>] warn_on_slowpath+0x40/0x66
Feb  3 09:53:00 debian kernel: [    0.000000]  [<c02b9c33>] _spin_lock_irqsave+0x16/0x2f
Feb  3 09:53:00 debian kernel: [    0.000000]  [<c02b9cc1>] _spin_unlock_irqrestore+0xd/0x10
Feb  3 09:53:00 debian kernel: [    0.000000]  [<c0122a97>] release_console_sem+0x173/0x18c
Feb  3 09:53:00 debian kernel: [    0.000000]  [<c0122f3f>] vprintk+0x2d2/0x2de
Feb  3 09:53:00 debian kernel: [    0.000000]  [<c010cd8c>] mtrr_wrmsr+0xf/0x2e
Feb  3 09:53:00 debian kernel: [    0.000000]  [<c0122f5f>] printk+0x14/0x18
Feb  3 09:53:00 debian kernel: [    0.000000]  [<c03873cb>] mtrr_trim_uncached_memory+0x178/0x183
Feb  3 09:53:00 debian kernel: [    0.000000]  [<c0385060>] setup_arch+0x254/0x6bb
Feb  3 09:53:00 debian kernel: [    0.000000]  [<c0122f5f>] printk+0x14/0x18
Feb  3 09:53:00 debian kernel: [    0.000000]  [<c037f5e4>] start_kernel+0x62/0x2d7
Feb  3 09:53:00 debian kernel: [    0.000000]  =======================
Feb  3 09:53:00 debian kernel: [    0.000000] ---[ end trace 4eaa2a86a8e2da22 ]---