Re: Linux-3.2.0 Pid: 1902, comm: modprobe Not tainted 3.2.0 #64

["Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>]

On 01/08/2012 08:48 PM, Jeff Chua wrote:

> Latest git pull commit at 02550d61f49266930e674286379d3601006b2893.
> Got several of these messages in dmesg ...
> 


Can you please turn on CONFIG_FRAME_POINTER, so that we get more reliable
stack traces? Also, more human-readable stack traces would definitely help..

> vmalloc: allocation failure: 0 bytes
> modprobe: page allocation failure: order:0, mode:0xd2
> Pid: 1902, comm: modprobe Not tainted 3.2.0 #64
> Call Trace:
> [<ffffffff8107e954>] ? 0xffffffff8107e954
> [<ffffffff8105e423>] ? 0xffffffff8105e423
> [<ffffffff8109cddf>] ? 0xffffffff8109cddf
> [<ffffffff8105e423>] ? 0xffffffff8105e423
> [<ffffffff8101bc5c>] ? 0xffffffff8101bc5c
> [<ffffffff8105e423>] ? 0xffffffff8105e423
> [<ffffffff8105e423>] ? 0xffffffff8105e423
> [<ffffffff8105f33f>] ? 0xffffffff8105f33f
> [<ffffffff8105fc58>] ? 0xffffffff8105fc58
> [<ffffffff814e9639>] ? 0xffffffff814e9639
> Mem-Info:
> 
> 
> ------------[ cut here ]------------
> WARNING: at drivers/base/core.c:194 0xffffffff8129298b()
> Hardware name: 5413FGA
> Device 'machinecheck1' does not have a release() function, it is
> broken and must be fixed.
> Modules linked in: i915 drm_kms_helper
> Pid: 2352, comm: power Not tainted 3.2.0 #64
> Call Trace:
> [<ffffffff8102a0ac>] ? 0xffffffff8102a0ac
> [<ffffffff8102a15f>] ? 0xffffffff8102a15f
> [<ffffffff814e8a69>] ? 0xffffffff814e8a69
> [<ffffffff810fd353>] ? 0xffffffff810fd353
> [<ffffffff8129298b>] ? 0xffffffff8129298b
> [<ffffffff811e4b29>] ? 0xffffffff811e4b29
> [<ffffffff814e144d>] ? 0xffffffff814e144d
> [<ffffffff81044c72>] ? 0xffffffff81044c72
> [<ffffffff8102b717>] ? 0xffffffff8102b717
> [<ffffffff8102b74c>] ? 0xffffffff8102b74c
> [<ffffffff814c701d>] ? 0xffffffff814c701d
> [<ffffffff814c7110>] ? 0xffffffff814c7110
> [<ffffffff814c901d>] ? 0xffffffff814c901d
> [<ffffffff810fc424>] ? 0xffffffff810fc424
> [<ffffffff810b26cc>] ? 0xffffffff810b26cc
> [<ffffffff810b2803>] ? 0xffffffff810b2803
> [<ffffffff814e9639>] ? 0xffffffff814e9639
> ---[ end trace 78b4393914412b97 ]---
> 
> ------------[ cut here ]------------
> WARNING: at arch/x86/kernel/smp.c:119 0xffffffff8103476f()


This looks like the IPI to offline CPU issue.

static void native_smp_send_reschedule(int cpu)
{
        if (unlikely(cpu_is_offline(cpu))) {
                WARN_ON(1);  <============
...
}

> Hardware name: 5413FGA
> Modules linked in: i915 drm_kms_helper
> Pid: 1693, comm: rs:main Q:Reg Tainted: G        W    3.2.0 #64
> Call Trace:
> <IRQ>  [<ffffffff8102a0ac>] ? 0xffffffff8102a0ac
> [<ffffffff8105857d>] ? 0xffffffff8105857d
> [<ffffffff8103476f>] ? 0xffffffff8103476f
> [<ffffffff810585dc>] ? 0xffffffff810585dc
> [<ffffffff8104376d>] ? 0xffffffff8104376d
> [<ffffffff81043a2e>] ? 0xffffffff81043a2e
> [<ffffffff81018fe6>] ? 0xffffffff81018fe6
> [<ffffffff814ea05e>] ? 0xffffffff814ea05e
> <EOI>  [<ffffffff814e9639>] ? 0xffffffff814e9639
> ---[ end trace 78b4393914412b98 ]---
> 
> ------------[ cut here ]------------
> WARNING: at drivers/base/core.c:194 0xffffffff8129298b()
> Hardware name: 5413FGA
> Device 'machinecheck3' does not have a release() function, it is
> broken and must be fixed.
> Modules linked in: i915 drm_kms_helper
> Pid: 2352, comm: power Tainted: G        W    3.2.0 #64
> Call Trace:
> [<ffffffff8102a0ac>] ? 0xffffffff8102a0ac
> [<ffffffff8102a15f>] ? 0xffffffff8102a15f
> [<ffffffff814e8a69>] ? 0xffffffff814e8a69
> [<ffffffff810fd353>] ? 0xffffffff810fd353
> [<ffffffff8129298b>] ? 0xffffffff8129298b
> [<ffffffff811e4b29>] ? 0xffffffff811e4b29
> [<ffffffff814e144d>] ? 0xffffffff814e144d
> [<ffffffff81044c72>] ? 0xffffffff81044c72
> [<ffffffff8102b717>] ? 0xffffffff8102b717
> [<ffffffff8102b74c>] ? 0xffffffff8102b74c
> [<ffffffff814c701d>] ? 0xffffffff814c701d
> [<ffffffff814c7110>] ? 0xffffffff814c7110
> [<ffffffff814c901d>] ? 0xffffffff814c901d
> [<ffffffff810fc424>] ? 0xffffffff810fc424
> [<ffffffff810b26cc>] ? 0xffffffff810b26cc
> [<ffffffff810b2803>] ? 0xffffffff810b2803
> [<ffffffff814e9639>] ? 0xffffffff814e9639
> ---[ end trace 78b4393914412b9a ]---
> 
> ------------[ cut here ]------------
> WARNING: at arch/x86/kernel/smp.c:119 0xffffffff8103476f()


Same here.

> Hardware name: 5413FGA
> Modules linked in: i915 drm_kms_helper
> Pid: 2503, comm: default.hotplug Tainted: G        W    3.2.0 #64
> Call Trace:
> <IRQ>  [<ffffffff8102a0ac>] ? 0xffffffff8102a0ac
> [<ffffffff8103476f>] ? 0xffffffff8103476f
> [<ffffffff810578ba>] ? 0xffffffff810578ba
> [<ffffffff81018fe6>] ? 0xffffffff81018fe6
> [<ffffffff814ea05e>] ? 0xffffffff814ea05e
> <EOI>  [<ffffffff811ead77>] ? 0xffffffff811ead77
> [<ffffffff8107f0e4>] ? 0xffffffff8107f0e4
> [<ffffffff8107f49d>] ? 0xffffffff8107f49d
> [<ffffffff8107f49d>] ? 0xffffffff8107f49d
> [<ffffffff81049aaf>] ? 0xffffffff81049aaf
> [<ffffffff8108f37b>] ? 0xffffffff8108f37b
> [<ffffffff81023b9c>] ? 0xffffffff81023b9c
> [<ffffffff81049aaf>] ? 0xffffffff81049aaf
> [<ffffffff8108f46d>] ? 0xffffffff8108f46d
> [<ffffffff8108ee8c>] ? 0xffffffff8108ee8c
> [<ffffffff810927e1>] ? 0xffffffff810927e1
> [<ffffffff81020bd6>] ? 0xffffffff81020bd6
> [<ffffffff810905b2>] ? 0xffffffff810905b2
> [<ffffffff811e693f>] ? 0xffffffff811e693f
> [<ffffffff81089d6b>] ? 0xffffffff81089d6b
> [<ffffffff810958a7>] ? 0xffffffff810958a7
> [<ffffffff814e91b5>] ? 0xffffffff814e91b5
> [<ffffffff811ec547>] ? 0xffffffff811ec547
> [<ffffffff810ebd53>] ? 0xffffffff810ebd53
> [<ffffffff810ece0a>] ? 0xffffffff810ece0a
> [<ffffffff810b722c>] ? 0xffffffff810b722c
> [<ffffffff810b2942>] ? 0xffffffff810b2942
> [<ffffffff810ec129>] ? 0xffffffff810ec129
> [<ffffffff810ebc56>] ? 0xffffffff810ebc56
> [<ffffffff810b6d25>] ? 0xffffffff810b6d25
> [<ffffffff81047c2d>] ? 0xffffffff81047c2d
> [<ffffffff810b722c>] ? 0xffffffff810b722c
> [<ffffffff810eba94>] ? 0xffffffff810eba94
> [<ffffffff810b8913>] ? 0xffffffff810b8913
> [<ffffffff81035614>] ? 0xffffffff81035614
> [<ffffffff81009015>] ? 0xffffffff81009015
> [<ffffffff814e99fc>] ? 0xffffffff814e99fc
> ---[ end trace 78b4393914412b9b ]---
> 
> ------------[ cut here ]------------
> WARNING: at arch/x86/kernel/smp.c:119 0xffffffff8103476f()


And here as well.

> Hardware name: 5413FGA
> Modules linked in: i915 drm_kms_helper
> Pid: 0, comm: swapper/2 Tainted: G        W    3.2.0 #64
> Call Trace:
> <IRQ>  [<ffffffff8102a0ac>] ? 0xffffffff8102a0ac
> [<ffffffff8103476f>] ? 0xffffffff8103476f
> [<ffffffff810578ba>] ? 0xffffffff810578ba
> [<ffffffff81018fe6>] ? 0xffffffff81018fe6
> [<ffffffff814ea05e>] ? 0xffffffff814ea05e
> <EOI>  [<ffffffff81220708>] ? 0xffffffff81220708
> [<ffffffff812206eb>] ? 0xffffffff812206eb
> [<ffffffff813d1f9d>] ? 0xffffffff813d1f9d
> [<ffffffff81001501>] ? 0xffffffff81001501
> ---[ end trace 78b4393914412b9c ]---
> 
> 
> Now suspend/resume seems to broken again!
>


In what sense? Does it suspend successfully but fail to resume?
Or is it that it doesn't even suspend reliably?

Can you kindly try out the pm_test framework (see
Documentation/power/basic-pm-debugging.txt)?
That helps in debugging suspend related issues.

 
> Was very stable pre-3.2.0.
> 


Ok, so that means we can do a git-bisect in case nothing else
works out.

Regards,
Srivatsa S. Bhat
IBM Linux Technology Center

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