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Re: Hi! I've noticed that kernel.org advertises 2.6.28 as "The latest st

To: "Sitsofe Wheeler" <sitsofe@xxxxxxxxx>
Subject: Re: Hi! I've noticed that kernel.org advertises 2.6.28 as "The latest stable version of the Linux kernel is".
From: "Igor Podlesny" <for.poige+linux@xxxxxxxxx>
Date: Mon, 29 Dec 2008 18:16:09 +0700
Cc: "Christoph Hellwig" <hch@xxxxxxxxxxxxx>, xfs@xxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
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2008/12/29 Sitsofe Wheeler <sitsofe@xxxxxxxxx>:
> Igor Podlesny wrote:
>>
>>        Yeah, I'll try to get backtraces, using null-modem cable, but alas,
>> I
>
> Have you tried compiling your kernel with extended checks
> (CONFIG_DEBUG_KERNEL in the Kernel hacking menu)? There are debug poisoning
> options too. Sometimes this can flush out problems before they become
> fatal...
>
2.6.28's:

# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_FS is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SHIRQ=y
# CONFIG_DEBUG_OBJECTS is not set
CONFIG_DEBUG_PREEMPT=y
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VIRTUAL is not set
# CONFIG_DEBUG_WRITECOUNT is not set
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
CONFIG_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_DEBUG_RODATA=y
# CONFIG_DEBUG_RODATA_TEST is not set
# CONFIG_DEBUG_NX_TEST is not set

        -- Nothing in dmesg; when it freezes or reboots, even if there're
some messages on console, they wouldn't be seen in graphics mode. As I
said, now my suspicion is netfilter's ipt_recent; I've turned it off
and now waiting. Another kernel I'm using now (2.6.24-ovz-006.5+) is
built with stack usage reporting; that's the latest stack depth
report:

[   54.312696] modprobe used greatest stack depth: 3904 bytes left

        Dunno whether it's rather low or ok.

-- 
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