Memory allocation problem with 2.6.22 after suspend/resume cycle

Memory allocation problem with 2.6.22 after suspend/resume cycle

[Christian P. Schmidt]

Hi all,

I'm having a strange problem, of course not reproducible. Sometimes
after a suspend (to ram) and resume cycle, the kernel will try to free
all memory. This means, all running applications are flushed to swap (as
long as it is available), caches and buffers stay at around 15MB each.

The following video (traded quality for bandwidth) shows what happens on
the way from no swap to "swapon -a" (that's the unreadable thing in the
small shell): http://digadd.de/swapping.avi

The system:
Linux dnnote 2.6.22.5 #1 SMP PREEMPT Sat Aug 25 18:39:21 AST 2007 x86_64
Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz GenuineIntel GNU/Linux

A 32bit Kernel is unable to suspend/resume at all. No idea why. dmesg
shows nothing, logs show nothing. Any ideas for debugging are welcome.

Regards,
Chris

Re: Memory allocation problem with 2.6.22 after suspend/resume cycle

[Rafael J. Wysocki]

On Saturday, 22 September 2007 17:41, Christian P. Schmidt wrote:
> Hi all,
> 
> I'm having a strange problem, of course not reproducible. Sometimes
> after a suspend (to ram) and resume cycle, the kernel will try to free
> all memory. This means, all running applications are flushed to swap (as
> long as it is available), caches and buffers stay at around 15MB each.
> 
> The following video (traded quality for bandwidth) shows what happens on
> the way from no swap to "swapon -a" (that's the unreadable thing in the
> small shell): http://digadd.de/swapping.avi
> 
> The system:
> Linux dnnote 2.6.22.5 #1 SMP PREEMPT Sat Aug 25 18:39:21 AST 2007 x86_64
> Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz GenuineIntel GNU/Linux

Are you using an ATI binary graphics driver?
 
> A 32bit Kernel is unable to suspend/resume at all. No idea why. dmesg
> shows nothing, logs show nothing. Any ideas for debugging are welcome.

Well, that's interesting.

Can you try in the minimal configuration (ie. boot with init=/bin/bash,
mount /sys, mount /proc and run "echo mem > /sys/power/disk)?

Greetings,
Rafael

Re: Memory allocation problem with 2.6.22 after suspend/resume cycle

[Christian P. Schmidt]

Rafael J. Wysocki wrote:
> On Saturday, 22 September 2007 17:41, Christian P. Schmidt wrote:
>> Hi all,
>>
>> I'm having a strange problem, of course not reproducible. Sometimes
>> after a suspend (to ram) and resume cycle, the kernel will try to free
>> all memory. This means, all running applications are flushed to swap (as
>> long as it is available), caches and buffers stay at around 15MB each.
>>
>> The following video (traded quality for bandwidth) shows what happens on
>> the way from no swap to "swapon -a" (that's the unreadable thing in the
>> small shell): http://digadd.de/swapping.avi
>>
>> The system:
>> Linux dnnote 2.6.22.5 #1 SMP PREEMPT Sat Aug 25 18:39:21 AST 2007 x86_64
>> Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz GenuineIntel GNU/Linux
> 
> Are you using an ATI binary graphics driver?

Yes. I do not (yet) have a choice... can't wait for the open source drivers.


>> A 32bit Kernel is unable to suspend/resume at all. No idea why. dmesg
>> shows nothing, logs show nothing. Any ideas for debugging are welcome.
> 
> Well, that's interesting.
> 
> Can you try in the minimal configuration (ie. boot with init=/bin/bash,
> mount /sys, mount /proc and run "echo mem > /sys/power/disk)?

Which? the 32bit or the 64bit?

Regards,
Chris

> Greetings,
> Rafael

Re: Memory allocation problem with 2.6.22 after suspend/resume cycle

[Rafael J. Wysocki]

On Sunday, 23 September 2007 14:38, Christian P. Schmidt wrote:
> Rafael J. Wysocki wrote:
> > On Saturday, 22 September 2007 17:41, Christian P. Schmidt wrote:
> >> Hi all,
> >>
> >> I'm having a strange problem, of course not reproducible. Sometimes
> >> after a suspend (to ram) and resume cycle, the kernel will try to free
> >> all memory. This means, all running applications are flushed to swap (as
> >> long as it is available), caches and buffers stay at around 15MB each.
> >>
> >> The following video (traded quality for bandwidth) shows what happens on
> >> the way from no swap to "swapon -a" (that's the unreadable thing in the
> >> small shell): http://digadd.de/swapping.avi
> >>
> >> The system:
> >> Linux dnnote 2.6.22.5 #1 SMP PREEMPT Sat Aug 25 18:39:21 AST 2007 x86_64
> >> Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz GenuineIntel GNU/Linux
> > 
> > Are you using an ATI binary graphics driver?
> 
> Yes. I do not (yet) have a choice... can't wait for the open source drivers.

That, most probably, is the source of the problem.  Please see:
http://bugzilla.kernel.org/show_bug.cgi?id=8943

> >> A 32bit Kernel is unable to suspend/resume at all. No idea why. dmesg
> >> shows nothing, logs show nothing. Any ideas for debugging are welcome.
> > 
> > Well, that's interesting.
> > 
> > Can you try in the minimal configuration (ie. boot with init=/bin/bash,
> > mount /sys, mount /proc and run "echo mem > /sys/power/disk)?
> 
> Which? the 32bit or the 64bit?

32-bit, but please do that without the ATI driver.

Greetings,
Rafael

Re: Memory allocation problem with 2.6.22 after suspend/resume cycle

[Christian P. Schmidt]

Rafael J. Wysocki wrote:
> On Sunday, 23 September 2007 14:38, Christian P. Schmidt wrote:
>> Rafael J. Wysocki wrote:
>>> On Saturday, 22 September 2007 17:41, Christian P. Schmidt wrote:
>>>> Hi all,
>>>>
>>>> I'm having a strange problem, of course not reproducible. Sometimes
>>>> after a suspend (to ram) and resume cycle, the kernel will try to free
>>>> all memory. This means, all running applications are flushed to swap (as
>>>> long as it is available), caches and buffers stay at around 15MB each.
>>>>
>>>> The following video (traded quality for bandwidth) shows what happens on
>>>> the way from no swap to "swapon -a" (that's the unreadable thing in the
>>>> small shell): http://digadd.de/swapping.avi
>>>>
>>>> The system:
>>>> Linux dnnote 2.6.22.5 #1 SMP PREEMPT Sat Aug 25 18:39:21 AST 2007 x86_64
>>>> Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz GenuineIntel GNU/Linux
>>> Are you using an ATI binary graphics driver?
>> Yes. I do not (yet) have a choice... can't wait for the open source drivers.
> 
> That, most probably, is the source of the problem.  Please see:
> http://bugzilla.kernel.org/show_bug.cgi?id=8943

I do however not agree with Andrew's conclusion, as the memory is not
"used", so I wouldn't expect a memory leak. As soon as I turn swapping
off everything is loaded again, and works. If there was a leak it should
use the memory, shouldn't it?
If the problem would be 100% reproducible I could try without, but as
is, I have up to two weeks with 2-3 cycles daily (sometimes more, as I
receive untraceable SERR from my PCI-E WLAN after which I do not receive
interrupts any more - only a suspend/resume cycle helps...) before the
problem occurs.

Anyway, is there a way of unloading the module temporarily without
shutting X down?

>>>> A 32bit Kernel is unable to suspend/resume at all. No idea why. dmesg
>>>> shows nothing, logs show nothing. Any ideas for debugging are welcome.
>>> Well, that's interesting.
>>>
>>> Can you try in the minimal configuration (ie. boot with init=/bin/bash,
>>> mount /sys, mount /proc and run "echo mem > /sys/power/disk)?
>> Which? the 32bit or the 64bit?
> 
> 32-bit, but please do that without the ATI driver.

Did it. As before, suspends, but when I resume, I hear the CD-ROM spin
up, the backlight comes on, and nothing more. The system is a Lenovo
Thinkpad T60 8744-4XG, BIOS 1.09.

Regards,
Christian

Re: Memory allocation problem with 2.6.22 after suspend/resume cycle

[Rafael J. Wysocki]

On Sunday, 23 September 2007 18:19, Christian P. Schmidt wrote:
> Rafael J. Wysocki wrote:
> > On Sunday, 23 September 2007 14:38, Christian P. Schmidt wrote:
> >> Rafael J. Wysocki wrote:
> >>> On Saturday, 22 September 2007 17:41, Christian P. Schmidt wrote:
> >>>> Hi all,
> >>>>
> >>>> I'm having a strange problem, of course not reproducible. Sometimes
> >>>> after a suspend (to ram) and resume cycle, the kernel will try to free
> >>>> all memory. This means, all running applications are flushed to swap (as
> >>>> long as it is available), caches and buffers stay at around 15MB each.
> >>>>
> >>>> The following video (traded quality for bandwidth) shows what happens on
> >>>> the way from no swap to "swapon -a" (that's the unreadable thing in the
> >>>> small shell): http://digadd.de/swapping.avi
> >>>>
> >>>> The system:
> >>>> Linux dnnote 2.6.22.5 #1 SMP PREEMPT Sat Aug 25 18:39:21 AST 2007 x86_64
> >>>> Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz GenuineIntel GNU/Linux
> >>> Are you using an ATI binary graphics driver?
> >> Yes. I do not (yet) have a choice... can't wait for the open source drivers.
> > 
> > That, most probably, is the source of the problem.  Please see:
> > http://bugzilla.kernel.org/show_bug.cgi?id=8943
> 
> I do however not agree with Andrew's conclusion, as the memory is not
> "used", so I wouldn't expect a memory leak. As soon as I turn swapping
> off everything is loaded again, and works. If there was a leak it should
> use the memory, shouldn't it?
> If the problem would be 100% reproducible I could try without, but as
> is, I have up to two weeks with 2-3 cycles daily (sometimes more, as I
> receive untraceable SERR from my PCI-E WLAN after which I do not receive
> interrupts any more - only a suspend/resume cycle helps...) before the
> problem occurs.
> 
> Anyway, is there a way of unloading the module temporarily without
> shutting X down?

I don't know.

Can you try another version of the ATI driver?  The reporter of this bugzilla
entry did that and it apparently helped him:
http://bugzilla.kernel.org/show_bug.cgi?id=8943#c4

> >>>> A 32bit Kernel is unable to suspend/resume at all. No idea why. dmesg
> >>>> shows nothing, logs show nothing. Any ideas for debugging are welcome.
> >>> Well, that's interesting.
> >>>
> >>> Can you try in the minimal configuration (ie. boot with init=/bin/bash,
> >>> mount /sys, mount /proc and run "echo mem > /sys/power/disk)?
> >> Which? the 32bit or the 64bit?
> > 
> > 32-bit, but please do that without the ATI driver.
> 
> Did it. As before, suspends, but when I resume, I hear the CD-ROM spin
> up, the backlight comes on, and nothing more. The system is a Lenovo
> Thinkpad T60 8744-4XG, BIOS 1.09.

Are you 100% sure that your 32-bit kernel configuration reflects the 64-bit
one?  In particular, do you have CONFIG_NO_HZ set in the 32-bit .config?

Also, would you be able to repeat this test with the latest -git kernel
(currently 2.6.23-rc7-git4)?

Greetings,
Rafael

Re: Memory allocation problem with 2.6.22 after suspend/resume cycle

[Christian P. Schmidt]

[-- Attachment #1: Type: text/plain, Size: 3725 bytes --]

Rafael J. Wysocki wrote:
> On Sunday, 23 September 2007 18:19, Christian P. Schmidt wrote:
>> Rafael J. Wysocki wrote:
>>> On Sunday, 23 September 2007 14:38, Christian P. Schmidt wrote:
>>>> Rafael J. Wysocki wrote:
>>>>> On Saturday, 22 September 2007 17:41, Christian P. Schmidt wrote:
>>>>>> Hi all,
>>>>>>
>>>>>> I'm having a strange problem, of course not reproducible. Sometimes
>>>>>> after a suspend (to ram) and resume cycle, the kernel will try to free
>>>>>> all memory. This means, all running applications are flushed to swap (as
>>>>>> long as it is available), caches and buffers stay at around 15MB each.
>>>>>>
>>>>>> The following video (traded quality for bandwidth) shows what happens on
>>>>>> the way from no swap to "swapon -a" (that's the unreadable thing in the
>>>>>> small shell): http://digadd.de/swapping.avi
>>>>>>
>>>>>> The system:
>>>>>> Linux dnnote 2.6.22.5 #1 SMP PREEMPT Sat Aug 25 18:39:21 AST 2007 x86_64
>>>>>> Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz GenuineIntel GNU/Linux
>>>>> Are you using an ATI binary graphics driver?
>>>> Yes. I do not (yet) have a choice... can't wait for the open source drivers.
>>> That, most probably, is the source of the problem.  Please see:
>>> http://bugzilla.kernel.org/show_bug.cgi?id=8943
>> I do however not agree with Andrew's conclusion, as the memory is not
>> "used", so I wouldn't expect a memory leak. As soon as I turn swapping
>> off everything is loaded again, and works. If there was a leak it should
>> use the memory, shouldn't it?
>> If the problem would be 100% reproducible I could try without, but as
>> is, I have up to two weeks with 2-3 cycles daily (sometimes more, as I
>> receive untraceable SERR from my PCI-E WLAN after which I do not receive
>> interrupts any more - only a suspend/resume cycle helps...) before the
>> problem occurs.
>>
>> Anyway, is there a way of unloading the module temporarily without
>> shutting X down?
> 
> I don't know.
> 
> Can you try another version of the ATI driver?  The reporter of this bugzilla
> entry did that and it apparently helped him:
> http://bugzilla.kernel.org/show_bug.cgi?id=8943#c4

That driver is even more broken, produces artifacts all over the place.
I'll rather wait for the open source work to be done and live with the
situation.

>>>>>> A 32bit Kernel is unable to suspend/resume at all. No idea why. dmesg
>>>>>> shows nothing, logs show nothing. Any ideas for debugging are welcome.
>>>>> Well, that's interesting.
>>>>>
>>>>> Can you try in the minimal configuration (ie. boot with init=/bin/bash,
>>>>> mount /sys, mount /proc and run "echo mem > /sys/power/disk)?
>>>> Which? the 32bit or the 64bit?
>>> 32-bit, but please do that without the ATI driver.
>> Did it. As before, suspends, but when I resume, I hear the CD-ROM spin
>> up, the backlight comes on, and nothing more. The system is a Lenovo
>> Thinkpad T60 8744-4XG, BIOS 1.09.
> 
> Are you 100% sure that your 32-bit kernel configuration reflects the 64-bit
> one?  In particular, do you have CONFIG_NO_HZ set in the 32-bit .config?

In both, not. 1000Hz timer, SMP support, hotplug CPU support are
enabled. I attached a diff (from the 64bit to the 32bit). Maybe I'm
missing something.

> Also, would you be able to repeat this test with the latest -git kernel
> (currently 2.6.23-rc7-git4)?

Not that I'd really care about the 32bit support, but someone else will.
Also, the 32bit version has problems with the SATA DVD-RW; it hangs for
several seconds resetting the port (same kernel version, both 2.6.22.5),
while the 64bit hasn't. Funny ;)
Sadly, I know that 2.6.23 breaks/will break all the external modules I
rely on. Anyway, I'll give it a shot later.

Regards,
Chris

> Greetings,
> Rafael


[-- Attachment #2: config.diff --]
[-- Type: text/plain, Size: 13482 bytes --]

--- /boot/config-2.6.22.5	2007-08-25 18:39:30.000000000 +0300
+++ config-2.6.22.5	2007-09-23 16:34:33.000000000 +0300
@@ -1,33 +1,26 @@
 #
 # Automatically generated make config: don't edit
 # Linux kernel version: 2.6.22.5
-# Sat Aug 25 18:35:55 2007
+# Mon Sep  3 15:45:00 2007
 #
-CONFIG_X86_64=y
-CONFIG_64BIT=y
-CONFIG_X86=y
+CONFIG_X86_32=y
 CONFIG_GENERIC_TIME=y
-CONFIG_GENERIC_TIME_VSYSCALL=y
-CONFIG_ZONE_DMA32=y
+CONFIG_CLOCKSOURCE_WATCHDOG=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
 CONFIG_LOCKDEP_SUPPORT=y
 CONFIG_STACKTRACE_SUPPORT=y
 CONFIG_SEMAPHORE_SLEEPERS=y
+CONFIG_X86=y
 CONFIG_MMU=y
 CONFIG_ZONE_DMA=y
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-CONFIG_GENERIC_HWEIGHT=y
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_X86_CMPXCHG=y
-CONFIG_EARLY_PRINTK=y
+CONFIG_QUICKLIST=y
 CONFIG_GENERIC_ISA_DMA=y
 CONFIG_GENERIC_IOMAP=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_HWEIGHT=y
 CONFIG_ARCH_MAY_HAVE_PC_FDC=y
-CONFIG_ARCH_POPULATES_NODE_MAP=y
 CONFIG_DMI=y
-CONFIG_AUDIT_ARCH=y
-CONFIG_GENERIC_BUG=y
-# CONFIG_ARCH_HAS_ILOG2_U32 is not set
-# CONFIG_ARCH_HAS_ILOG2_U64 is not set
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 
 #
@@ -102,7 +95,9 @@
 # Block layer
 #
 CONFIG_BLOCK=y
+# CONFIG_LBD is not set
 # CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
 
 #
 # IO Schedulers
@@ -120,77 +115,135 @@
 #
 # Processor type and features
 #
+CONFIG_TICK_ONESHOT=y
+# CONFIG_NO_HZ is not set
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_SMP=y
 CONFIG_X86_PC=y
-# CONFIG_X86_VSMP is not set
-# CONFIG_MK8 is not set
-# CONFIG_MPSC is not set
+# CONFIG_X86_ELAN is not set
+# CONFIG_X86_VOYAGER is not set
+# CONFIG_X86_NUMAQ is not set
+# CONFIG_X86_SUMMIT is not set
+# CONFIG_X86_BIGSMP is not set
+# CONFIG_X86_VISWS is not set
+# CONFIG_X86_GENERICARCH is not set
+# CONFIG_X86_ES7000 is not set
+# CONFIG_PARAVIRT is not set
+# CONFIG_M386 is not set
+# CONFIG_M486 is not set
+# CONFIG_M586 is not set
+# CONFIG_M586TSC is not set
+# CONFIG_M586MMX is not set
+# CONFIG_M686 is not set
+# CONFIG_MPENTIUMII is not set
+# CONFIG_MPENTIUMIII is not set
+# CONFIG_MPENTIUMM is not set
 CONFIG_MCORE2=y
-# CONFIG_GENERIC_CPU is not set
-CONFIG_X86_L1_CACHE_BYTES=64
+# CONFIG_MPENTIUM4 is not set
+# CONFIG_MK6 is not set
+# CONFIG_MK7 is not set
+# CONFIG_MK8 is not set
+# CONFIG_MCRUSOE is not set
+# CONFIG_MEFFICEON is not set
+# CONFIG_MWINCHIPC6 is not set
+# CONFIG_MWINCHIP2 is not set
+# CONFIG_MWINCHIP3D is not set
+# CONFIG_MGEODEGX1 is not set
+# CONFIG_MGEODE_LX is not set
+# CONFIG_MCYRIXIII is not set
+# CONFIG_MVIAC3_2 is not set
+# CONFIG_MVIAC7 is not set
+# CONFIG_X86_GENERIC is not set
+CONFIG_X86_CMPXCHG=y
 CONFIG_X86_L1_CACHE_SHIFT=6
-CONFIG_X86_INTERNODE_CACHE_BYTES=64
-CONFIG_X86_TSC=y
+CONFIG_X86_XADD=y
+CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_X86_WP_WORKS_OK=y
+CONFIG_X86_INVLPG=y
+CONFIG_X86_BSWAP=y
+CONFIG_X86_POPAD_OK=y
 CONFIG_X86_GOOD_APIC=y
-# CONFIG_MICROCODE is not set
-CONFIG_X86_MSR=y
-CONFIG_X86_CPUID=y
-CONFIG_X86_HT=y
-CONFIG_X86_IO_APIC=y
-CONFIG_X86_LOCAL_APIC=y
-CONFIG_MTRR=y
-CONFIG_SMP=y
+CONFIG_X86_INTEL_USERCOPY=y
+CONFIG_X86_USE_PPRO_CHECKSUM=y
+CONFIG_X86_TSC=y
+CONFIG_X86_MINIMUM_CPU_MODEL=4
+CONFIG_HPET_TIMER=y
+CONFIG_HPET_EMULATE_RTC=y
+CONFIG_NR_CPUS=2
 CONFIG_SCHED_SMT=y
 CONFIG_SCHED_MC=y
 # CONFIG_PREEMPT_NONE is not set
 # CONFIG_PREEMPT_VOLUNTARY is not set
 CONFIG_PREEMPT=y
 CONFIG_PREEMPT_BKL=y
-# CONFIG_NUMA is not set
-CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_X86_LOCAL_APIC=y
+CONFIG_X86_IO_APIC=y
+CONFIG_X86_MCE=y
+CONFIG_X86_MCE_NONFATAL=y
+CONFIG_X86_MCE_P4THERMAL=y
+CONFIG_VM86=y
+# CONFIG_TOSHIBA is not set
+# CONFIG_I8K is not set
+# CONFIG_X86_REBOOTFIXUPS is not set
+CONFIG_MICROCODE=y
+CONFIG_MICROCODE_OLD_INTERFACE=y
+CONFIG_X86_MSR=y
+CONFIG_X86_CPUID=y
+
+#
+# Firmware Drivers
+#
+# CONFIG_EDD is not set
+# CONFIG_DELL_RBU is not set
+# CONFIG_DCDBAS is not set
+# CONFIG_NOHIGHMEM is not set
+CONFIG_HIGHMEM4G=y
+# CONFIG_HIGHMEM64G is not set
+CONFIG_PAGE_OFFSET=0xC0000000
+CONFIG_HIGHMEM=y
 CONFIG_ARCH_FLATMEM_ENABLE=y
+CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+CONFIG_ARCH_POPULATES_NODE_MAP=y
 CONFIG_SELECT_MEMORY_MODEL=y
 CONFIG_FLATMEM_MANUAL=y
 # CONFIG_DISCONTIGMEM_MANUAL is not set
 # CONFIG_SPARSEMEM_MANUAL is not set
 CONFIG_FLATMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
-# CONFIG_SPARSEMEM_STATIC is not set
+CONFIG_SPARSEMEM_STATIC=y
 CONFIG_SPLIT_PTLOCK_CPUS=4
 CONFIG_RESOURCES_64BIT=y
 CONFIG_ZONE_DMA_FLAG=1
-CONFIG_NR_CPUS=2
-CONFIG_HOTPLUG_CPU=y
-CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
-CONFIG_HPET_TIMER=y
-CONFIG_HPET_EMULATE_RTC=y
-CONFIG_IOMMU=y
-# CONFIG_CALGARY_IOMMU is not set
-CONFIG_SWIOTLB=y
-CONFIG_X86_MCE=y
-CONFIG_X86_MCE_INTEL=y
-# CONFIG_X86_MCE_AMD is not set
-# CONFIG_KEXEC is not set
-# CONFIG_CRASH_DUMP is not set
-# CONFIG_RELOCATABLE is not set
-CONFIG_PHYSICAL_START=0x200000
+CONFIG_NR_QUICK=1
+# CONFIG_HIGHPTE is not set
+# CONFIG_MATH_EMULATION is not set
+CONFIG_MTRR=y
+# CONFIG_EFI is not set
+CONFIG_IRQBALANCE=y
 CONFIG_SECCOMP=y
-# CONFIG_CC_STACKPROTECTOR is not set
 # CONFIG_HZ_100 is not set
 # CONFIG_HZ_250 is not set
 # CONFIG_HZ_300 is not set
 CONFIG_HZ_1000=y
 CONFIG_HZ=1000
-CONFIG_K8_NB=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_IRQ_PROBE=y
-CONFIG_ISA_DMA_API=y
-CONFIG_GENERIC_PENDING_IRQ=y
+# CONFIG_KEXEC is not set
+# CONFIG_CRASH_DUMP is not set
+CONFIG_PHYSICAL_START=0x100000
+# CONFIG_RELOCATABLE is not set
+CONFIG_PHYSICAL_ALIGN=0x100000
+CONFIG_HOTPLUG_CPU=y
+# CONFIG_COMPAT_VDSO is not set
+CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
 
 #
-# Power management options
+# Power management options (ACPI, APM)
 #
 CONFIG_PM=y
-CONFIG_PM_LEGACY=y
+# CONFIG_PM_LEGACY is not set
 # CONFIG_PM_DEBUG is not set
 # CONFIG_PM_SYSFS_DEPRECATED is not set
 # CONFIG_SOFTWARE_SUSPEND is not set
@@ -208,8 +261,9 @@
 CONFIG_ACPI_BATTERY=y
 CONFIG_ACPI_BUTTON=y
 CONFIG_ACPI_VIDEO=y
-# CONFIG_ACPI_FAN is not set
-# CONFIG_ACPI_DOCK is not set
+CONFIG_ACPI_FAN=y
+CONFIG_ACPI_DOCK=y
+CONFIG_ACPI_BAY=y
 CONFIG_ACPI_PROCESSOR=y
 CONFIG_ACPI_HOTPLUG_CPU=y
 CONFIG_ACPI_THERMAL=y
@@ -223,6 +277,7 @@
 CONFIG_X86_PM_TIMER=y
 CONFIG_ACPI_CONTAINER=y
 # CONFIG_ACPI_SBS is not set
+# CONFIG_APM is not set
 
 #
 # CPU Frequency scaling
@@ -243,20 +298,35 @@
 #
 # CPUFreq processor drivers
 #
+CONFIG_X86_ACPI_CPUFREQ=y
+# CONFIG_X86_POWERNOW_K6 is not set
+# CONFIG_X86_POWERNOW_K7 is not set
 # CONFIG_X86_POWERNOW_K8 is not set
+# CONFIG_X86_GX_SUSPMOD is not set
 # CONFIG_X86_SPEEDSTEP_CENTRINO is not set
-CONFIG_X86_ACPI_CPUFREQ=y
+# CONFIG_X86_SPEEDSTEP_ICH is not set
+# CONFIG_X86_SPEEDSTEP_SMI is not set
+# CONFIG_X86_P4_CLOCKMOD is not set
+# CONFIG_X86_CPUFREQ_NFORCE2 is not set
+# CONFIG_X86_LONGRUN is not set
+# CONFIG_X86_LONGHAUL is not set
+# CONFIG_X86_E_POWERSAVER is not set
 
 #
 # shared options
 #
-CONFIG_X86_ACPI_CPUFREQ_PROC_INTF=y
+# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
 # CONFIG_X86_SPEEDSTEP_LIB is not set
 
 #
-# Bus options (PCI etc.)
+# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
 #
 CONFIG_PCI=y
+# CONFIG_PCI_GOBIOS is not set
+# CONFIG_PCI_GOMMCONFIG is not set
+# CONFIG_PCI_GODIRECT is not set
+CONFIG_PCI_GOANY=y
+CONFIG_PCI_BIOS=y
 CONFIG_PCI_DIRECT=y
 CONFIG_PCI_MMCONFIG=y
 CONFIG_PCIEPORTBUS=y
@@ -265,6 +335,10 @@
 CONFIG_PCI_MSI=y
 CONFIG_PCI_DEBUG=y
 # CONFIG_HT_IRQ is not set
+CONFIG_ISA_DMA_API=y
+# CONFIG_ISA is not set
+# CONFIG_MCA is not set
+# CONFIG_SCx200 is not set
 
 #
 # PCCARD (PCMCIA/CardBus) support
@@ -291,14 +365,11 @@
 # CONFIG_HOTPLUG_PCI is not set
 
 #
-# Executable file formats / Emulations
+# Executable file formats
 #
 CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_AOUT is not set
 # CONFIG_BINFMT_MISC is not set
-CONFIG_IA32_EMULATION=y
-CONFIG_IA32_AOUT=y
-CONFIG_COMPAT=y
-CONFIG_SYSVIPC_COMPAT=y
 
 #
 # Networking
@@ -546,6 +617,7 @@
 # CONFIG_SIGMATEL_FIR is not set
 CONFIG_NSC_FIR=m
 # CONFIG_WINBOND_FIR is not set
+# CONFIG_TOSHIBA_FIR is not set
 # CONFIG_SMC_IRCC_FIR is not set
 # CONFIG_ALI_FIR is not set
 # CONFIG_VLSI_FIR is not set
@@ -654,7 +726,6 @@
 # CONFIG_SONY_LAPTOP is not set
 CONFIG_THINKPAD_ACPI=m
 CONFIG_THINKPAD_ACPI_DEBUG=y
-CONFIG_THINKPAD_ACPI_DOCK=y
 CONFIG_THINKPAD_ACPI_BAY=y
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDE=y
@@ -738,6 +809,8 @@
 # CONFIG_SCSI_AIC7XXX_OLD is not set
 # CONFIG_SCSI_AIC79XX is not set
 # CONFIG_SCSI_AIC94XX is not set
+# CONFIG_SCSI_DPT_I2O is not set
+# CONFIG_SCSI_ADVANSYS is not set
 # CONFIG_SCSI_ARCMSR is not set
 # CONFIG_MEGARAID_NEWGEN is not set
 # CONFIG_MEGARAID_LEGACY is not set
@@ -760,13 +833,16 @@
 # CONFIG_SCSI_LPFC is not set
 # CONFIG_SCSI_DC395x is not set
 # CONFIG_SCSI_DC390T is not set
+# CONFIG_SCSI_NSP32 is not set
 # CONFIG_SCSI_DEBUG is not set
 # CONFIG_SCSI_SRP is not set
 
 #
 # PCMCIA SCSI adapter support
 #
+# CONFIG_PCMCIA_AHA152X is not set
 # CONFIG_PCMCIA_FDOMAIN is not set
+# CONFIG_PCMCIA_NINJA_SCSI is not set
 # CONFIG_PCMCIA_QLOGIC is not set
 # CONFIG_PCMCIA_SYM53C500 is not set
 CONFIG_ATA=y
@@ -796,6 +872,7 @@
 # CONFIG_PATA_CMD64X is not set
 # CONFIG_PATA_CS5520 is not set
 # CONFIG_PATA_CS5530 is not set
+# CONFIG_PATA_CS5535 is not set
 # CONFIG_PATA_CYPRESS is not set
 # CONFIG_PATA_EFAR is not set
 # CONFIG_ATA_GENERIC is not set
@@ -1011,6 +1088,7 @@
 # CONFIG_INPUT_TOUCHSCREEN is not set
 CONFIG_INPUT_MISC=y
 # CONFIG_INPUT_PCSPKR is not set
+# CONFIG_INPUT_WISTRON_BTNS is not set
 # CONFIG_INPUT_ATLAS_BTNS is not set
 # CONFIG_INPUT_ATI_REMOTE is not set
 # CONFIG_INPUT_ATI_REMOTE2 is not set
@@ -1073,11 +1151,18 @@
 CONFIG_RTC=y
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set
+# CONFIG_SONYPI is not set
 CONFIG_AGP=y
-CONFIG_AGP_AMD64=y
+# CONFIG_AGP_ALI is not set
+# CONFIG_AGP_ATI is not set
+# CONFIG_AGP_AMD is not set
+# CONFIG_AGP_AMD64 is not set
 # CONFIG_AGP_INTEL is not set
+# CONFIG_AGP_NVIDIA is not set
 # CONFIG_AGP_SIS is not set
+# CONFIG_AGP_SWORKS is not set
 # CONFIG_AGP_VIA is not set
+# CONFIG_AGP_EFFICEON is not set
 # CONFIG_DRM is not set
 
 #
@@ -1088,20 +1173,22 @@
 # CONFIG_CARDMAN_4040 is not set
 # CONFIG_MWAVE is not set
 # CONFIG_PC8736x_GPIO is not set
+# CONFIG_NSC_GPIO is not set
+# CONFIG_CS5535_GPIO is not set
 # CONFIG_RAW_DRIVER is not set
 CONFIG_HPET=y
 # CONFIG_HPET_RTC_IRQ is not set
 CONFIG_HPET_MMAP=y
-# CONFIG_HANGCHECK_TIMER is not set
+CONFIG_HANGCHECK_TIMER=y
 
 #
 # TPM devices
 #
-CONFIG_TCG_TPM=m
-CONFIG_TCG_TIS=m
-CONFIG_TCG_NSC=m
-CONFIG_TCG_ATMEL=m
-CONFIG_TCG_INFINEON=m
+CONFIG_TCG_TPM=y
+CONFIG_TCG_TIS=y
+CONFIG_TCG_NSC=y
+CONFIG_TCG_ATMEL=y
+CONFIG_TCG_INFINEON=y
 # CONFIG_TELCLOCK is not set
 CONFIG_DEVPORT=y
 CONFIG_I2C=y
@@ -1132,6 +1219,7 @@
 # CONFIG_I2C_PROSAVAGE is not set
 # CONFIG_I2C_SAVAGE4 is not set
 # CONFIG_I2C_SIMTEC is not set
+# CONFIG_SCx200_ACB is not set
 # CONFIG_I2C_SIS5595 is not set
 # CONFIG_I2C_SIS630 is not set
 # CONFIG_I2C_SIS96X is not set
@@ -1307,6 +1395,7 @@
 # CONFIG_SND_CMIPCI is not set
 # CONFIG_SND_CS4281 is not set
 # CONFIG_SND_CS46XX is not set
+# CONFIG_SND_CS5535AUDIO is not set
 # CONFIG_SND_DARLA20 is not set
 # CONFIG_SND_GINA20 is not set
 # CONFIG_SND_LAYLA20 is not set
@@ -1575,14 +1664,9 @@
 #
 # Virtualization
 #
-# CONFIG_KVM is not set
-
-#
-# Firmware Drivers
-#
-# CONFIG_EDD is not set
-# CONFIG_DELL_RBU is not set
-# CONFIG_DCDBAS is not set
+CONFIG_KVM=y
+CONFIG_KVM_INTEL=y
+# CONFIG_KVM_AMD is not set
 
 #
 # File systems
@@ -1794,6 +1878,7 @@
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
 # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
 # CONFIG_DEBUG_KOBJECT is not set
+# CONFIG_DEBUG_HIGHMEM is not set
 CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
 # CONFIG_DEBUG_VM is not set
@@ -1802,10 +1887,14 @@
 # CONFIG_FORCED_INLINING is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_FAULT_INJECTION is not set
-# CONFIG_DEBUG_RODATA is not set
-# CONFIG_IOMMU_DEBUG is not set
+CONFIG_EARLY_PRINTK=y
 CONFIG_DEBUG_STACKOVERFLOW=y
 # CONFIG_DEBUG_STACK_USAGE is not set
+# CONFIG_DEBUG_RODATA is not set
+# CONFIG_4KSTACKS is not set
+CONFIG_X86_FIND_SMP_CONFIG=y
+CONFIG_X86_MPPARSE=y
+CONFIG_DOUBLEFAULT=y
 
 #
 # Security options
@@ -1826,7 +1915,7 @@
 # CONFIG_CRYPTO_NULL is not set
 # CONFIG_CRYPTO_MD4 is not set
 CONFIG_CRYPTO_MD5=y
-CONFIG_CRYPTO_SHA1=m
+CONFIG_CRYPTO_SHA1=y
 CONFIG_CRYPTO_SHA256=y
 CONFIG_CRYPTO_SHA512=y
 # CONFIG_CRYPTO_WP512 is not set
@@ -1842,14 +1931,14 @@
 CONFIG_CRYPTO_BLOWFISH=y
 # CONFIG_CRYPTO_TWOFISH is not set
 CONFIG_CRYPTO_TWOFISH_COMMON=y
-CONFIG_CRYPTO_TWOFISH_X86_64=y
+CONFIG_CRYPTO_TWOFISH_586=y
 # CONFIG_CRYPTO_SERPENT is not set
 # CONFIG_CRYPTO_AES is not set
-CONFIG_CRYPTO_AES_X86_64=y
+CONFIG_CRYPTO_AES_586=y
 # CONFIG_CRYPTO_CAST5 is not set
 # CONFIG_CRYPTO_CAST6 is not set
 # CONFIG_CRYPTO_TEA is not set
-CONFIG_CRYPTO_ARC4=m
+CONFIG_CRYPTO_ARC4=y
 # CONFIG_CRYPTO_KHAZAD is not set
 # CONFIG_CRYPTO_ANUBIS is not set
 # CONFIG_CRYPTO_DEFLATE is not set
@@ -1861,6 +1950,8 @@
 #
 # Hardware crypto devices
 #
+# CONFIG_CRYPTO_DEV_PADLOCK is not set
+# CONFIG_CRYPTO_DEV_GEODE is not set
 
 #
 # Library routines
@@ -1877,3 +1968,11 @@
 CONFIG_HAS_IOMEM=y
 CONFIG_HAS_IOPORT=y
 CONFIG_HAS_DMA=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_GENERIC_PENDING_IRQ=y
+CONFIG_X86_SMP=y
+CONFIG_X86_HT=y
+CONFIG_X86_BIOS_REBOOT=y
+CONFIG_X86_TRAMPOLINE=y
+CONFIG_KTIME_SCALAR=y

Re: Memory allocation problem with 2.6.22 after suspend/resume cycle

[Rafael J. Wysocki]

On Sunday, 23 September 2007 21:18, Christian P. Schmidt wrote:
> Rafael J. Wysocki wrote:
> > On Sunday, 23 September 2007 18:19, Christian P. Schmidt wrote:
> >> Rafael J. Wysocki wrote:
> >>> On Sunday, 23 September 2007 14:38, Christian P. Schmidt wrote:
> >>>> Rafael J. Wysocki wrote:
> >>>>> On Saturday, 22 September 2007 17:41, Christian P. Schmidt wrote:
> >>>>>> Hi all,
> >>>>>>
> >>>>>> I'm having a strange problem, of course not reproducible. Sometimes
> >>>>>> after a suspend (to ram) and resume cycle, the kernel will try to free
> >>>>>> all memory. This means, all running applications are flushed to swap (as
> >>>>>> long as it is available), caches and buffers stay at around 15MB each.
> >>>>>>
> >>>>>> The following video (traded quality for bandwidth) shows what happens on
> >>>>>> the way from no swap to "swapon -a" (that's the unreadable thing in the
> >>>>>> small shell): http://digadd.de/swapping.avi
> >>>>>>
> >>>>>> The system:
> >>>>>> Linux dnnote 2.6.22.5 #1 SMP PREEMPT Sat Aug 25 18:39:21 AST 2007 x86_64
> >>>>>> Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz GenuineIntel GNU/Linux
> >>>>> Are you using an ATI binary graphics driver?
> >>>> Yes. I do not (yet) have a choice... can't wait for the open source drivers.
> >>> That, most probably, is the source of the problem.  Please see:
> >>> http://bugzilla.kernel.org/show_bug.cgi?id=8943
> >> I do however not agree with Andrew's conclusion, as the memory is not
> >> "used", so I wouldn't expect a memory leak. As soon as I turn swapping
> >> off everything is loaded again, and works. If there was a leak it should
> >> use the memory, shouldn't it?
> >> If the problem would be 100% reproducible I could try without, but as
> >> is, I have up to two weeks with 2-3 cycles daily (sometimes more, as I
> >> receive untraceable SERR from my PCI-E WLAN after which I do not receive
> >> interrupts any more - only a suspend/resume cycle helps...) before the
> >> problem occurs.
> >>
> >> Anyway, is there a way of unloading the module temporarily without
> >> shutting X down?
> > 
> > I don't know.
> > 
> > Can you try another version of the ATI driver?  The reporter of this bugzilla
> > entry did that and it apparently helped him:
> > http://bugzilla.kernel.org/show_bug.cgi?id=8943#c4
> 
> That driver is even more broken, produces artifacts all over the place.
> I'll rather wait for the open source work to be done and live with the
> situation.
> 
> >>>>>> A 32bit Kernel is unable to suspend/resume at all. No idea why. dmesg
> >>>>>> shows nothing, logs show nothing. Any ideas for debugging are welcome.
> >>>>> Well, that's interesting.
> >>>>>
> >>>>> Can you try in the minimal configuration (ie. boot with init=/bin/bash,
> >>>>> mount /sys, mount /proc and run "echo mem > /sys/power/disk)?
> >>>> Which? the 32bit or the 64bit?
> >>> 32-bit, but please do that without the ATI driver.
> >> Did it. As before, suspends, but when I resume, I hear the CD-ROM spin
> >> up, the backlight comes on, and nothing more. The system is a Lenovo
> >> Thinkpad T60 8744-4XG, BIOS 1.09.
> > 
> > Are you 100% sure that your 32-bit kernel configuration reflects the 64-bit
> > one?  In particular, do you have CONFIG_NO_HZ set in the 32-bit .config?
> 
> In both, not. 1000Hz timer, SMP support, hotplug CPU support are
> enabled. I attached a diff (from the 64bit to the 32bit). Maybe I'm
> missing something.

Yes.

Can you try to unset CONFIG_HIGH_RES_TIMERS in the 32-bit .config and retest,
please?

> > Also, would you be able to repeat this test with the latest -git kernel
> > (currently 2.6.23-rc7-git4)?
> 
> Not that I'd really care about the 32bit support, but someone else will.

Exactly.  Plus there are some things in the 32-bit kernel that are going to be
present in the 64-bit one in the future. ;-)

> Also, the 32bit version has problems with the SATA DVD-RW; it hangs for
> several seconds resetting the port (same kernel version, both 2.6.22.5),
> while the 64bit hasn't. Funny ;)
> Sadly, I know that 2.6.23 breaks/will break all the external modules I
> rely on. Anyway, I'll give it a shot later.

You can build it non-modular.

Greetings,
Rafael