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Re: kernel crash at ibm x3850


I compiled a kernel with some more debug code.

kernel text is mapped with 6 large pages and 34 normal pages
Loaded initial symtab at 0xffffffff81258fa0, strtab at 0xffffffff81303f70, # entries 29097
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007, 2008, 2009, 2010
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 5.1_STABLE (INSTALL) #7: Sun Jan 15 23:33:41 CET 2012
total memory = 511 GB
avail memory = 496 GB
RTC BIOS diagnostic error 80<clock_battery>
SMBIOS rev. 2.7 @ 0x7f0be000 (137 entries)
IBM System x3850 X5 -[71453RG]- (06)
mainbus0 (root)
cpu0 at mainbus0 apid 0: Intel 686-class, 1995MHz, id 0x206e6
fatal protection fault in supervisor mode
trap type 4 code 0 rip ffffffff8056e456 cs 8 rflags 10246 cr2 0 cpl 8 rsp ffffffff8137ab98 kernel: protection fault trap, code=0 Stopped in pid 0.1 (system) at netbsd:rdmsr+0x6: rdmsr
db{0}> bt
rdmsr() at netbsd:rdmsr+0x6
est_init_once() at netbsd:est_init_once+0x148
_run_once() at netbsd:_run_once+0x67
cpu_identify() at netbsd:cpu_identify+0x171
cpu_attach() at netbsd:cpu_attach+0x21f
config_attach_loc() at netbsd:config_attach_loc+0x15a
mpacpi_config_cpu() at netbsd:mpacpi_config_cpu+0x6e
acpi_madt_walk() at netbsd:acpi_madt_walk+0x45
mpacpi_scan_apics() at netbsd:mpacpi_scan_apics+0x90
mainbus_attach() at netbsd:mainbus_attach+0x26c
config_attach_loc() at netbsd:config_attach_loc+0x15a
cpu_configure() at netbsd:cpu_configure+0x26
main() at netbsd:main+0x1aa
db{0}> show register
ds          0x5
es          0
fs          0x64
gs          0xbed6
rdi         0xcd
rsi         0xffffffff805690a0  est_init_once
rbp         0xffffffff8137abb0
rbx         0xe
rdx         0x1
rcx         0xcd
rax         0
r8          0x3
r9          0
r10         0x1
r11         0xffffffff802e9da0  comcnputc
r12         0xffffffff80c4ea00  cpu_info_primary
r13         0xffffffff8137ad40
r14         0xffff8004b0b5e710
r15         0x1
rip         0xffffffff8056e456  rdmsr+0x6
cs          0x8
rflags      0x10246
rsp         0xffffffff8137ab98
ss          0x10
netbsd:rdmsr+0x6:       rdmsr

Thank you for your efforts


On Fri, 13 Jan 2012, Patrick Welche wrote:

Date: Fri, 13 Jan 2012 12:34:09 +0000
From: Patrick Welche <>
Subject: Re: kernel crash at ibm x3850

On Fri, Jan 13, 2012 at 11:54:58AM +0100, wrote:
if I boot the netbsd-5-1-1 install media at an ibm x3850 the kernel
crashs. You can find the screenshot at

Any ideas what could be the problem?

Maybe you could get a backtrace (type "bt") at the prompt showing, and
take a picture of that?



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