linux-kernel - Re: mm snapshot broken-out-2006-08-24-00-22.tar.gz uploaded

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Message-ID: <6bffcb0e0608240452w6c17586djaab20855d9356139@mail.gmail.com>
Date:	Thu, 24 Aug 2006 13:52:28 +0200
From:	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>
To:	"Andrew Morton" <akpm@...l.org>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: mm snapshot broken-out-2006-08-24-00-22.tar.gz uploaded

Hi,

On 24/08/06, akpm@...l.org <akpm@...l.org> wrote:
> The mm snapshot broken-out-2006-08-24-00-22.tar.gz has been uploaded to
>
>    ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/mm/broken-out-2006-08-24-00-22.tar.gz
>
> It contains the following patches against 2.6.18-rc4:

I haven't seen this on 2.6.18-rc4-mm2. Any idea which patch is causing
this soft lockup?

BUG: soft lockup detected on CPU#0!
[<c01041b5>] dump_trace+0x64/0x1b2
[<c0104315>] show_trace_log_lvl+0x12/0x25
[<c0104985>] show_trace+0xd/0x10
[<c0104a4d>] dump_stack+0x19/0x1b
[<c014f40d>] softlockup_tick+0xc5/0xd9
[<c012a0c7>] run_local_timers+0x12/0x14
[<c012a329>] update_process_times+0x40/0x65
[<c0113cc7>] smp_apic_timer_interrupt+0x6e/0x77
[<c0103ce2>] apic_timer_interrupt+0x2a/0x30
DWARF2 unwinder stuck at apic_timer_interrupt+0x2a/0x30
Leftover inexact backtrace:
[<c0104315>] show_trace_log_lvl+0x12/0x25
[<c0104985>] show_trace+0xd/0x10
[<c0104a4d>] dump_stack+0x19/0x1b
[<c014f40d>] softlockup_tick+0xc5/0xd9
[<c012a0c7>] run_local_timers+0x12/0x14
[<c012a329>] update_process_times+0x40/0x65
[<c0113cc7>] smp_apic_timer_interrupt+0x6e/0x77
[<c0103ce2>] apic_timer_interrupt+0x2a/0x30
[<c01f3010>] __delay+0x9/0xb
[<c01ffc47>] _raw_spin_lock+0xca/0x11d
[<c02f86a8>] _spin_lock+0x2a/0x32
[<c013cc4e>] do_futex+0xee/0xd9a
[<c013d9d4>] sys_futex+0xda/0xf0
[<c01031b5>] sysenter_past_esp+0x56/0x8d
=======================

(gdb) list *apic_timer_interrupt+0x2a/0x30
0xc0103cb8 is at include2/asm/bitops.h:246.
241     static int test_bit(int nr, const volatile void * addr);
242     #endif
243
244     static __always_inline int constant_test_bit(int nr, const
volatile unsigned long *addr)
245     {
246             return ((1UL << (nr & 31)) & (addr[nr >> 5])) != 0;
247     }
248
249     static inline int variable_test_bit(int nr, const volatile
unsigned long * addr)
250     {

http://www.stardust.webpages.pl/files/mm/2.6.18-rc4-mm3/mm-config

Regards,
Michal

-- 
Michal K. K. Piotrowski
LTG - Linux Testers Group
(http://www.stardust.webpages.pl/ltg/wiki/)
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