Mailing List Archive: Linux: Kernel

[Bug #10872] x86_64 boot hang when CONFIG_NUMA=n

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rjw at sisk

Jun 22, 2008, 10:54 AM

Post #1 of 9 (154 views)
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[Bug #10872] x86_64 boot hang when CONFIG_NUMA=n

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.25. Please verify if it still should be listed.

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10872
Subject : x86_64 boot hang when CONFIG_NUMA=n
Submitter : Randy Dunlap <randy.dunlap[at]oracle.com>
Date : 2008-06-05 21:50 (18 days old)
References : http://marc.info/?l=linux-kernel&m=121270308607116&w=4
http://lkml.org/lkml/2008/6/11/355
http://lkml.org/lkml/2008/6/15/117
Handled-By : Yinghai Lu <yhlu.kernel[at]gmail.com>

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randy.dunlap at oracle

Jun 25, 2008, 10:48 AM

Post #2 of 9 (144 views)
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Re: [Bug #10872] x86_64 boot hang when CONFIG_NUMA=n [In reply to]

On Sun, 22 Jun 2008 19:54:46 +0200 (CEST) Rafael J. Wysocki wrote:

> This message has been generated automatically as a part of a report
> of recent regressions.
>
> The following bug entry is on the current list of known regressions
> from 2.6.25. Please verify if it still should be listed.

Yes.

> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10872
> Subject : x86_64 boot hang when CONFIG_NUMA=n
> Submitter : Randy Dunlap <randy.dunlap[at]oracle.com>
> Date : 2008-06-05 21:50 (18 days old)
> References : http://marc.info/?l=linux-kernel&m=121270308607116&w=4
> http://lkml.org/lkml/2008/6/11/355
> http://lkml.org/lkml/2008/6/15/117
> Handled-By : Yinghai Lu <yhlu.kernel[at]gmail.com>

---
~Randy
Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA
http://linuxplumbersconf.org/
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rjw at sisk

Jun 29, 2008, 11:18 AM

Post #3 of 9 (138 views)
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[Bug #10872] x86_64 boot hang when CONFIG_NUMA=n [In reply to]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.25. Please verify if it still should be listed.

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10872
Subject : x86_64 boot hang when CONFIG_NUMA=n
Submitter : Randy Dunlap <randy.dunlap[at]oracle.com>
Date : 2008-06-05 21:50 (25 days old)
References : http://marc.info/?l=linux-kernel&m=121270308607116&w=4
http://lkml.org/lkml/2008/6/11/355
http://lkml.org/lkml/2008/6/15/117
Handled-By : Yinghai Lu <yhlu.kernel[at]gmail.com>

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randy.dunlap at oracle

Jul 5, 2008, 1:51 PM

Post #4 of 9 (135 views)
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Re: [Bug #10872] x86_64 boot hang when CONFIG_NUMA=n [In reply to]

On Sun, 29 Jun 2008 20:18:43 +0200 (CEST) Rafael J. Wysocki wrote:

> This message has been generated automatically as a part of a report
> of recent regressions.
>
> The following bug entry is on the current list of known regressions
> from 2.6.25. Please verify if it still should be listed.

Yes, boot still hangs in 2.6.26-rc8-git4 when CONFIG_NUMA=n.
CONFIG_NUMA=y boots OK.

>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10872
> Subject : x86_64 boot hang when CONFIG_NUMA=n
> Submitter : Randy Dunlap <randy.dunlap[at]oracle.com>
> Date : 2008-06-05 21:50 (25 days old)
> References : http://marc.info/?l=linux-kernel&m=121270308607116&w=4
> http://lkml.org/lkml/2008/6/11/355
> http://lkml.org/lkml/2008/6/15/117
> Handled-By : Yinghai Lu <yhlu.kernel[at]gmail.com>

---
~Randy
Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA
http://linuxplumbersconf.org/
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rjw at sisk

Jul 6, 2008, 4:45 AM

Post #5 of 9 (136 views)
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[Bug #10872] x86_64 boot hang when CONFIG_NUMA=n [In reply to]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.25. Please verify if it still should be listed.

Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10872
Subject : x86_64 boot hang when CONFIG_NUMA=n
Submitter : Randy Dunlap <randy.dunlap[at]oracle.com>
Date : 2008-06-05 21:50 (32 days old)
References : http://marc.info/?l=linux-kernel&m=121270308607116&w=4
http://lkml.org/lkml/2008/6/11/355
http://lkml.org/lkml/2008/6/15/117
Handled-By : Yinghai Lu <yhlu.kernel[at]gmail.com>

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randy.dunlap at oracle

Jul 6, 2008, 11:17 AM

Post #6 of 9 (131 views)
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Re: [Bug #10872] x86_64 boot hang when CONFIG_NUMA=n [In reply to]

On Sun, 6 Jul 2008 13:45:53 +0200 (CEST) Rafael J. Wysocki wrote:

> This message has been generated automatically as a part of a report
> of recent regressions.
>
> The following bug entry is on the current list of known regressions
> from 2.6.25. Please verify if it still should be listed.
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10872
> Subject : x86_64 boot hang when CONFIG_NUMA=n
> Submitter : Randy Dunlap <randy.dunlap[at]oracle.com>
> Date : 2008-06-05 21:50 (32 days old)
> References : http://marc.info/?l=linux-kernel&m=121270308607116&w=4
> http://lkml.org/lkml/2008/6/11/355
> http://lkml.org/lkml/2008/6/15/117
> Handled-By : Yinghai Lu <yhlu.kernel[at]gmail.com>

This still happens with 2.6.26-rc9. Using CONFIG_NUMA=y boots OK.

The last lines from the (netconsole) log are:

calling early_fill_mp_bus_info+0x0/0x7b2
node 0 link 1: io port [1000, 3fff]
node 1 link 2: io port [4000, ffff]
TOM: 0000000080000000 aka 2048M
node 0 link 1: mmio [e8000000, fddfffff]
node 1 link 2: mmio [fde00000, fdffffff]
node 0 link 1: mmio [80000000, 83ffffff]
node 1 link 2: mmio [84000000, 8fffffff]
node 0 link 1: mmio [a0000, bffff]
TOM2: 0000000280000000 aka 10240M
bus: [00,3f] on node 0 link 1
bus: 00 index 0 io port: [0, 3fff]
bus: 00 index 1 mmio: [90000000, fddfffff]
bus: 00 index 2 mmio: [80000000, 83ffffff]
bus: 00 index 3 mmio: [a0000, bffff]
bus: 00 index 4 mmio: [fe000000, ffffffff]
bus: 00 index 5 mmio: [280000000, fcffffffff]
bus: [40,ff] on node 1 link 2
bus: 40 index 0 io port: [4000, ffff]
bus: 40 index 1 mmio: [fde00000, fdffffff]

---
~Randy
Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA
http://linuxplumbersconf.org/
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torvalds at linux-foundation

Jul 6, 2008, 11:33 AM

Post #7 of 9 (132 views)
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Re: [Bug #10872] x86_64 boot hang when CONFIG_NUMA=n [In reply to]

On Sun, 6 Jul 2008, Randy Dunlap wrote:
>
> This still happens with 2.6.26-rc9. Using CONFIG_NUMA=y boots OK.

Ok, then it wasn't the nr_zones thing.

Since it seems to be repeatable for you, can you bisect it?

Linus
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mingo at elte

Jul 6, 2008, 11:42 PM

Post #8 of 9 (126 views)
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Re: [Bug #10872] x86_64 boot hang when CONFIG_NUMA=n [In reply to]

* Randy Dunlap <randy.dunlap[at]oracle.com> wrote:

> This still happens with 2.6.26-rc9. Using CONFIG_NUMA=y boots OK.

one thing i dont see you having followed up on is whether tip/master
works fine:

http://lkml.org/lkml/2008/6/11/355

(or, whether linux-next works fine with the same !NUMA config.)

i.e. whether this is a genuine new problem or something we already
fixed. (just didnt realize the upstream relevance of)

( if tip/master works fine then it would be very useful to do an
'inverse bisection' for the fix. )

Ingo
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yhlu.kernel at gmail

Jul 7, 2008, 12:15 AM

Post #9 of 9 (126 views)
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Re: [Bug #10872] x86_64 boot hang when CONFIG_NUMA=n [In reply to]

On Sun, Jul 6, 2008 at 11:42 PM, Ingo Molnar <mingo[at]elte.hu> wrote:
>
> * Randy Dunlap <randy.dunlap[at]oracle.com> wrote:
>
>> This still happens with 2.6.26-rc9. Using CONFIG_NUMA=y boots OK.
>
> one thing i dont see you having followed up on is whether tip/master
> works fine:
>
> http://lkml.org/lkml/2008/6/11/355

in the response to me, he said tip/master has the same problem

YH
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