Bug 472844

the machine I used is a rhts machine named hp-xw4800-01.rhts.bos.redhat.com. kernel 2.6.18-124 also has the same problem.

panic info:

[root@hp-xw4800-01 ~]# BUG: unable to handle kernel paging request at virtual address 076129ff
 printing eip:
c046d45c
*pde = 00000000
Oops: 0000 [#1]
SMP 
last sysfs file: /devices/pci0000:3f/0000:3f:00.0/irq
Modules linked in: autofs4 hidp rfcomm l2cap bluetooth sunrpc ipv6 xfrm_nalgo crypto_api cpufreq_ondemand acpi_cpufreq dm_multipath scsi_dh video backlight sbs i2c_ec i2c_core button battery asus_acpi ac parport_pc lp parport floppy sr_mod cdrom snd_hda_intel snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device tg3 libphy snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc snd_hwdep snd sg soundcore pcspkr serio_raw dm_snapshot dm_zero dm_mirror dm_log dm_mod ahci libata sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd
CPU:    3
EIP:    0060:[<c046d45c>]    Not tainted VLI
EFLAGS: 00010297   (2.6.18-119.el5PAE #1) 
EIP is at free_percpu+0x12/0x36
eax: 00000000   ebx: 00000000   ecx: 00000202   edx: 00000000
esi: 076129ff   edi: 00000000   ebp: f6856000   esp: f6856f54
ds: 007b   es: 007b   ss: 0068
Process modprobe (pid: 3373, ti=f6856000 task=f6ec4000 task.ti=f6856000)
Stack: f89ec380 00000020 c043d86f 69706361 7570635f 71657266 c0448000 00000000 
       080f10e0 00000081 40000003 f6ec4000 f6eed800 492b4e8a 1d173065 f6856fbc 
       00000000 000f10e0 f89ec380 00000880 f6856fa8 00000000 080f10e0 00000000 
Call Trace:
 [<c043d86f>] sys_delete_module+0x192/0x1bb
 [<c0448000>] audit_syscall_entry+0xb4/0x17d
 [<c0404f17>] syscall_call+0x7/0xb
 =======================
Code: 0b 89 c8 89 da e8 01 ff ff ff 8b 03 89 7c 83 14 40 89 03 56 9d 5b 5e 5f c3 56 89 c6 53 b8 40 b5 77 c0 f7 d6 e8 c2 78 07 00 eb 14 <8b> 04 9e e8 7a ff ff ff ba 40 b5 77 c0 89 d8 e8 c6 78 07 00 83 
EIP: [<c046d45c>] free_percpu+0x12/0x36 SS:ESP 0068:f6856f54
 <0>Kernel panic - not syncing: Fatal exception

[root@hp-xw4800-01 ~]# lsmod | grep acpi
acpi_cpufreq           14025  0

Created attachment 324558 [details]
dmesg

Created attachment 324559 [details]
cpuinfo

Created attachment 324560 [details]
content of "cat sys/devices/system/cpu/cpu*/cpufreq/*"

Can you reproduce it on x86_64 version? 

It is weird because acpi_cpufreq reference number shoudld not be "0".

[root@hp-xw4800-01 ~]# lsmod | grep acpi
acpi_cpufreq           14025  0

yes, kernel panic also happen on x86_64 for the same machine.

[root@hp-xw4800-01 ~]# lsmod | grep acpi
acpi_cpufreq           14025  0

but on another machine intel-s3ea2-03.rhts.bos.redhat.com which has the same cpu family and model as hp-xw4800-01.rhts.bos.redhat.com.

cpu family      : 6
model           : 26

it does not have the problem, and 

[root@hp-xw4800-01 ~]# lsmod | grep acpi
acpi_cpufreq           14025  1

From the dmesg, hp-xw4800-01.rhts.bos.redhat.com have some ACPI issue. 
You can update the new BIOS.   

From the "acpi_cpufreq           14025  0", the cpufreq subsystem is not correctly established.  
You can try to run /etc/init.d/cpuspeed stop, then modprobe -r cpufreq_ondemand governors etc., then modprobe acpi-cpufreq etc. 

ACPI Error (evgpe-0711): No handler or method for GPE[ 0], disabling event [20060707]
ACPI Error (evgpe-0711): No handler or method for GPE[ 1], disabling event [20060707]
ACPI Error (evgpe-0711): No handler or method for GPE[ 2], disabling event [20060707]
ACPI Error (evgpe-0711): No handler or method for GPE[ 6], disabling event [20060707]
ACPI Error (evgpe-0711): No handler or method for GPE[ 7], disabling event [20060707]
ACPI Error (evgpe-0711): No handler or method for GPE[ A], disabling event [20060707]
ACPI Error (evgpe-0711): No handler or method for GPE[ F], disabling event [20060707]

thanks.
Has filed a ticket asking to update the BIOS.
On old bios, did following: 
[root@hp-xw4800-01 ~]# /etc/init.d/cpuspeed stop
[root@hp-xw4800-01 ~]# modprobe -r cpufreq_ondemand
[root@hp-xw4800-01 ~]# modprobe -r cpufreq_powersave
[root@hp-xw4800-01 ~]# modprobe -r cpufreq_conservative
[root@hp-xw4800-01 ~]# modprobe -r acpi_cpufreq
still kernel panic.

(In reply to comment #10)
> From the dmesg, hp-xw4800-01.rhts.bos.redhat.com have some ACPI issue. 
> You can update the new BIOS.   

<snip>

> ACPI Error (evgpe-0711): No handler or method for GPE[ 0], disabling event
> [20060707]
> ACPI Error (evgpe-0711): No handler or method for GPE[ 1], disabling event
> [20060707]
> ACPI Error (evgpe-0711): No handler or method for GPE[ 2], disabling event
> [20060707]
> ACPI Error (evgpe-0711): No handler or method for GPE[ 6], disabling event
> [20060707]
> ACPI Error (evgpe-0711): No handler or method for GPE[ 7], disabling event
> [20060707]
> ACPI Error (evgpe-0711): No handler or method for GPE[ A], disabling event
> [20060707]
> ACPI Error (evgpe-0711): No handler or method for GPE[ F], disabling event
> [20060707]

This is a known issue on the HP xw series systems.  A BIOS update currently will not resolve the GPE register errors.

A WAR for the GPE error has been submitted to RHKL and will ship in 5.4.

Tracked this down to RHEL5 commit e12bfee9772aa06e05e40d08918ca838e21db7f0.

Must be some weird module ordering issue?

P.

What's the status of this bug?
Can you reproduce it when build the upstream kernel such as 2.6.28-rc4 etc?

Hi Youquan, I'm working this issue right now -- it does not happen upstream AFAICT.

P.

Created attachment 325237 [details]
RHEL5 fix for this issue

in kernel-2.6.18-126.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2009-0225.html