linux-kernel - Re: 2.6.21-rc7-mm2 hangs in boot

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Message-Id: <20070429222354.63265e3f.akpm@linux-foundation.org>
Date:	Sun, 29 Apr 2007 22:23:54 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.21-rc7-mm2 hangs in boot

On Sun, 29 Apr 2007 22:01:32 -0700 Randy Dunlap <randy.dunlap@...cle.com> wrote:

> On Wed, 25 Apr 2007 22:57:16 -0700 Andrew Morton wrote:
> 
> > 
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21-rc7/2.6.21-rc7-mm2/
> 
> I'm getting a hang near the end of booting on x86_64 UP.
> The last initcall_debug function varies.  E.g.:
> 
> 1/
> [    0.140257] Calling initcall 0xffffffff806f2fa8: init_misc_binfmt+0x0/0x3f()
> [    0.140266] initcall 0xffffffff806f2fa8: init_misc_binfmt+0x0/0x3f() returned 0.
> [    0.140275] initcall 0xffffffff806f2fa8 ran for 0 msecs: init_misc_binfmt+0x0/0x3f()
> [    0.140284] Calling initcall 0xffffffff806f2fe7: init_script_binfmt+0x0/0x12()
> [    0.140293] initcall 0xffffffff806f2fe7: init_script_binfmt+0x0/0x12() returned 0.
> [    0.140302] initcall 0xffffffff806f2fe7 ran for 0 msecs: init_script_binfmt+0x0/0x12()
> [    0.140310] Calling initcall 0xffffffff806f2ff9: init_elf_binfmt+0x0/0x12()
> [    0.140317] initcall 0xffffffff806f2ff9: init_elf_binfmt+0x0/0x12() returned 0.
> [    0.140326] initcall 0xffffffff806f2ff9 ran for 0 msecs: init_elf_binfmt+0x0/0x12()
> [    0.140335] Calling initcall 0xffffffff806f3de9: debugfs_init+0x0/0x4a()
> [    0.140344] initcall 0xffffffff806f3de9: debugfs_init+0x0/0x4a() returned 0.
> [    0.140351] initcall 0xffffffff806f3de9 ran for 0 msecs: debugfs_init+0x0/0x4a()
> 
> 2/
> [    0.140206] Calling initcall 0xffffffff806efeb1: ksysfs_init+0x0/0x29()
> [    0.140215] initcall 0xffffffff806efeb1: ksysfs_init+0x0/0x29() returned 0.
> [    0.140222] initcall 0xffffffff806efeb1 ran for 0 msecs: ksysfs_init+0x0/0x29()
> [    0.140230] Calling initcall 0xffffffff806f25be: filelock_init+0x0/0x31()
> [    0.140242] initcall 0xffffffff806f25be: filelock_init+0x0/0x31() returned 0.
> [    0.140249] initcall 0xffffffff806f25be ran for 0 msecs: filelock_init+0x0/0x31()
> [    0.140258] Calling initcall 0xffffffff806f2fa8: init_misc_binfmt+0x0/0x3f()
> [    0.140266] initcall 0xffffffff806f2fa8: init_misc_binfmt+0x0/0x3f() returned 0.
> [    0.140276] initcall 0xffffffff806f2fa8 ran for 0 msecs: init_misc_binfmt+0x0/0x3f()
> [    0.140284] Calling initcall 0xffffffff806f2fe7: init_script_binfmt+0x0/0x12()
> [    0.140293] initcall 0xffffffff806f2fe7: init_script_binfmt+0x0/0x12() returned 0.
> 

So perhaps it locks during a timer interrupt.

> .config is attached.
> 
> Any ideas/suggestions?

Just the usual: nothing from sysrq or NMI watchdog?
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