linux-kernel - Re: [GIT PATCH] ACPI patches for 2.6.26-rc0

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Date:	Wed, 30 Apr 2008 21:00:25 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Len Brown <lenb@...nel.org>, torvalds@...ux-foundation.org,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-pm@...ts.linux-foundation.org
Subject: Re: [GIT PATCH] ACPI patches for 2.6.26-rc0

On Wednesday, 30 of April 2008, Andrew Morton wrote:
> On Wed, 30 Apr 2008 14:20:11 -0400
> Len Brown <lenb@...nel.org> wrote:
> 
> > Hi Linus,
> > 
> > please pull from: 
> > 
> > git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git release
> > 
> > This batch is a proper super-set of the pull request I made a week ago.
> > It will update the files shown below.
> > 
> 
> 
> I have four acpi-related reports here from 2.6.25-rcX-mmY.  Can you please check
> that they were addressed?  I don't recall seeing any feedback for any of
> them.
> 
> Thanks.
> 
> 
> 
> 
> 
> From: "Miles Lane" <miles.lane@...il.com>
> To: "Andrew Morton" <akpm@...ux-foundation.org>, LKML <linux-kernel@...r.kernel.org>, len.brown@...el.com
> Subject: 2.6.25-rc8-mm2 -- initcall acpi_init+0x0/0x216() returned with preemption imbalance
> Date: Fri, 11 Apr 2008 15:41:17 -0400
> 
> Is this indicative of a kernel or hardware problem?
> 
> [    0.279606] ACPI: Using IOAPIC for interrupt routing
> [    0.279789] initcall acpi_init+0x0/0x216() returned with preemption imbalance
> [    0.330789] ACPI: PCI Root Bridge [PCI0] (0000:00)
> 
> 
> 
> From: "Dave Young" <hidave.darkstar@...il.com>
> To: "Andrew Morton" <akpm@...ux-foundation.org>
> Cc: linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org, "Len Brown" <lenb@...nel.org>
> Subject: Re: 2.6.25-rc5-mm1
> Date: Wed, 12 Mar 2008 09:14:55 +0800
> 
> Hi, I got the following lockdep warning:
> (add linux-acpi to cc)
> 
> [    0.097109] ACPI: Core revision 20070126
> [    0.097282] INFO: trying to register non-static key.
> [    0.097355] the code is fine but needs lockdep annotation.
> [    0.097428] turning off the locking correctness validator.
> [    0.097503] Pid: 0, comm: swapper Not tainted 2.6.25-rc5-mm1 #3
> [    0.097578]  [<c0127bf8>] ? printk+0x18/0x20
> [    0.097716]  [<c014b01c>] __lock_acquire+0x40c/0x760
> [    0.097822]  [<c0181ba0>] ? alloc_debug_processing+0xb0/0x140
> [    0.097959]  [<c014b969>] lock_acquire+0x79/0xb0
> [    0.098063]  [<c0140204>] ? down_trylock+0x14/0x40
> [    0.098197]  [<c03df9e8>] _spin_lock_irqsave+0x48/0xa0
> [    0.098303]  [<c0140204>] ? down_trylock+0x14/0x40
> [    0.098436]  [<c0140204>] down_trylock+0x14/0x40
> [    0.098540]  [<c027c7ea>] acpi_os_wait_semaphore+0x3e/0xb9
> [    0.098647]  [<c029263e>] acpi_ut_acquire_mutex+0x34/0x72
> [    0.098753]  [<c0289ab1>] acpi_ns_root_initialize+0x19/0x250
> [    0.098859]  [<c05453e6>] acpi_initialize_subsystem+0x42/0x64
> [    0.098966]  [<c0545725>] acpi_early_init+0x50/0xef
> [    0.099070]  [<c052b7f6>] start_kernel+0x1e6/0x250
> [    0.099175]  [<c052b1a0>] ? unknown_bootoption+0x0/0x130
> [    0.099310]  [<c052b008>] __init_begin+0x8/0x10
> [    0.099414]  =======================
> 
> 
> 
> From: Randy Dunlap <randy.dunlap@...cle.com>
> To: Andrew Morton <akpm@...ux-foundation.org>
> Cc: linux-kernel@...r.kernel.org, len.brown@...el.com
> Subject: Re: 2.6.25-rc2-mm1 (build failure)
> Date: Sat, 16 Feb 2008 21:32:25 -0800
> Organization: Oracle Linux Eng.
> X-Mailer: Sylpheed 2.4.7 (GTK+ 2.8.10; x86_64-unknown-linux-gnu)
> 
> On Sat, 16 Feb 2008 00:25:22 -0800 Andrew Morton wrote:
> 
> > 
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.25-rc2/2.6.25-rc2-mm1/
> 
> When SMP=n, x86_64 build gets:
> 
> arch/x86/kernel/built-in.o: In function `acpi_save_state_mem':
> (.text+0xfd7f): undefined reference to `setup_trampoline'
> make[1]: *** [.tmp_vmlinux1] Error 1

This code has already been merged via the x86 tree, with the problem fixed
IIRC (at least it hasn't been reported against the mainline so far).

Thanks,
Rafael
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