NO_HZ hangs up AMD MK-36

NO_HZ hangs up AMD MK-36

[Dmitry Tyschenko]

[-- Attachment #1: Type: text/plain, Size: 626 bytes --]

Hello,

I have laptop Asus X50M. Using old Debian Etch from February.
Kernel from 2.6.21 doesn't boot, hangs up just in 10seconds -  1minute
after GRUB screen.
I have tryed different versions of gcc (4.1.1, 4.1.2, 4.2.1) to build
2.6.22.8 kernel, but no results.
But if I disable NO_HZ option 2.6.21 is working fine for me.

I think this is important problem, because some of the project, Debian
for example,
 are building kernel with this options enabled (in
linux-image-2.6.22-1-k7 package it is enabled),
and some people, like me, can not use new kernels.

I have attached some of my PC info, hope this can help

Thank you

[-- Attachment #2: hwinfo --]
[-- Type: application/octet-stream, Size: 267752 bytes --]

[-- Attachment #3: cpuinfo --]
[-- Type: application/octet-stream, Size: 549 bytes --]

processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 76
model name	: AMD Turion(tm) 64 Mobile Technology MK-36
stepping	: 2
cpu MHz		: 2009.151
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow up pni cx16 lahf_lm svm extapic cr8legacy ts fid vid ttp tm stc
bogomips	: 4021.54
clflush size	: 64


[-- Attachment #4: lspci --]
[-- Type: application/octet-stream, Size: 1926 bytes --]

00:00.0 RAM memory: nVidia Corporation C51 Host Bridge (rev a2)
00:00.2 RAM memory: nVidia Corporation C51 Memory Controller 1 (rev a2)
00:00.3 RAM memory: nVidia Corporation C51 Memory Controller 5 (rev a2)
00:00.4 RAM memory: nVidia Corporation C51 Memory Controller 4 (rev a2)
00:00.5 RAM memory: nVidia Corporation C51 Host Bridge (rev a2)
00:00.6 RAM memory: nVidia Corporation C51 Memory Controller 3 (rev a2)
00:00.7 RAM memory: nVidia Corporation C51 Memory Controller 2 (rev a2)
00:02.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1)
00:03.0 PCI bridge: nVidia Corporation C51 PCI Express Bridge (rev a1)
00:05.0 VGA compatible controller: nVidia Corporation C51 PCI Express Bridge (rev a2)
00:09.0 RAM memory: nVidia Corporation MCP51 Host Bridge (rev a2)
00:0a.0 ISA bridge: nVidia Corporation MCP51 LPC Bridge (rev a3)
00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a3)
00:0a.3 Co-processor: nVidia Corporation MCP51 PMU (rev a3)
00:0b.0 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3)
00:0b.1 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3)
00:0d.0 IDE interface: nVidia Corporation MCP51 IDE (rev a1)
00:0e.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev a1)
00:10.0 PCI bridge: nVidia Corporation MCP51 PCI Bridge (rev a2)
00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2)
00:14.0 Bridge: nVidia Corporation MCP51 Ethernet Controller (rev a3)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:00.0 Ethernet controller: Atheros Communications, Inc. Unknown device 001c (rev 01)

Re: NO_HZ hangs up AMD MK-36

[Thomas Gleixner]

On Thu, 2007-09-27 at 23:28 +0300, Dmitry Tyschenko wrote:
> I have laptop Asus X50M. Using old Debian Etch from February.
> Kernel from 2.6.21 doesn't boot, hangs up just in 10seconds -  1minute
> after GRUB screen.
> I have tryed different versions of gcc (4.1.1, 4.1.2, 4.2.1) to build
> 2.6.22.8 kernel, but no results.
> But if I disable NO_HZ option 2.6.21 is working fine for me.

We have fixed a bunch of bugs in this area. Can you please try the
latest mainline kernel, whether the problem still persists ?

Thanks,

	tglx

Re: NO_HZ hangs up AMD MK-36

[Rafael J. Wysocki]

On Thursday, 27 September 2007 22:28, Dmitry Tyschenko wrote:
> Hello,
> 
> I have laptop Asus X50M. Using old Debian Etch from February.
> Kernel from 2.6.21 doesn't boot, hangs up just in 10seconds -  1minute
> after GRUB screen.
> I have tryed different versions of gcc (4.1.1, 4.1.2, 4.2.1) to build
> 2.6.22.8 kernel, but no results.
> But if I disable NO_HZ option 2.6.21 is working fine for me.
> 
> I think this is important problem, because some of the project, Debian
> for example,
>  are building kernel with this options enabled (in
> linux-image-2.6.22-1-k7 package it is enabled),
> and some people, like me, can not use new kernels.
> 
> I have attached some of my PC info, hope this can help

You can use the "nohz=off" kernel command line switch.  Please check if it
works for you.

Greetings,
Rafael

Re: NO_HZ hangs up AMD MK-36

[Dmitry Tyschenko]

Sorry, I am newbie in linux. Hope you was talking about:
/boot/vmlinuz-2.6.22-1-k7 root=/dev/sda5 ro nohz=off
But it doesn't help for Debians 2.6.22-1 (I don't have another
prebuiled) still same problems.

2007/9/27, Rafael J. Wysocki <rjw@sisk.pl>:
> On Thursday, 27 September 2007 22:28, Dmitry Tyschenko wrote:
> > Hello,
> >
> > I have laptop Asus X50M. Using old Debian Etch from February.
> > Kernel from 2.6.21 doesn't boot, hangs up just in 10seconds -  1minute
> > after GRUB screen.
> > I have tryed different versions of gcc (4.1.1, 4.1.2, 4.2.1) to build
> > 2.6.22.8 kernel, but no results.
> > But if I disable NO_HZ option 2.6.21 is working fine for me.
> >
> > I think this is important problem, because some of the project, Debian
> > for example,
> >  are building kernel with this options enabled (in
> > linux-image-2.6.22-1-k7 package it is enabled),
> > and some people, like me, can not use new kernels.
> >
> > I have attached some of my PC info, hope this can help
>
> You can use the "nohz=off" kernel command line switch.  Please check if it
> works for you.
>
> Greetings,
> Rafael
>

Re: NO_HZ hangs up AMD MK-36

[Thomas Gleixner]

On Fri, 2007-09-28 at 00:01 +0300, Dmitry Tyschenko wrote:
> Sorry, I am newbie in linux. Hope you was talking about:
> /boot/vmlinuz-2.6.22-1-k7 root=/dev/sda5 ro nohz=off

Yes.

> But it doesn't help for Debians 2.6.22-1 (I don't have another
> prebuiled) still same problems.

Can you please add: nolapic_timer instead ?

Thanks,

	tglx

Re: NO_HZ hangs up AMD MK-36

[Dmitry Tyschenko]

2007/9/28, Thomas Gleixner <tglx@linutronix.de>:
> On Fri, 2007-09-28 at 00:01 +0300, Dmitry Tyschenko wrote:
> > Sorry, I am newbie in linux. Hope you was talking about:
> > /boot/vmlinuz-2.6.22-1-k7 root=/dev/sda5 ro nohz=off
>
> Yes.
>
> > But it doesn't help for Debians 2.6.22-1 (I don't have another
> > prebuiled) still same problems.
>
> Can you please add: nolapic_timer instead ?
>
> Thanks,
>
>         tglx

It works with nolapic_timer!
Thank you!

Re: NO_HZ hangs up AMD MK-36

[Rafael J. Wysocki]

Please don't top post.

On Thursday, 27 September 2007 23:01, Dmitry Tyschenko wrote:
> Sorry, I am newbie in linux. Hope you was talking about:
> /boot/vmlinuz-2.6.22-1-k7 root=/dev/sda5 ro nohz=off

Yes.

> But it doesn't help for Debians 2.6.22-1 (I don't have another
> prebuiled) still same problems.

So, you need to explicitly unset NO_HZ in the kernel coniguration to make
things work.

Well, in that case please wait until the 2.6.23 kernel is out and test it.
There will be some important fixes related to NO_HZ in it.

Greetings,
Rafael


> 2007/9/27, Rafael J. Wysocki <rjw@sisk.pl>:
> > On Thursday, 27 September 2007 22:28, Dmitry Tyschenko wrote:
> > > Hello,
> > >
> > > I have laptop Asus X50M. Using old Debian Etch from February.
> > > Kernel from 2.6.21 doesn't boot, hangs up just in 10seconds -  1minute
> > > after GRUB screen.
> > > I have tryed different versions of gcc (4.1.1, 4.1.2, 4.2.1) to build
> > > 2.6.22.8 kernel, but no results.
> > > But if I disable NO_HZ option 2.6.21 is working fine for me.
> > >
> > > I think this is important problem, because some of the project, Debian
> > > for example,
> > >  are building kernel with this options enabled (in
> > > linux-image-2.6.22-1-k7 package it is enabled),
> > > and some people, like me, can not use new kernels.
> > >
> > > I have attached some of my PC info, hope this can help
> >
> > You can use the "nohz=off" kernel command line switch.  Please check if it
> > works for you.
> >
> > Greetings,
> > Rafael
> >
> 
> 

-- 
"Premature optimization is the root of all evil." - Donald Knuth