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

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

[Michal Piotrowski]

Hi,

On 24/08/06, akpm@osdl.org <akpm@osdl.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/)

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

[Michal Piotrowski]

On 24/08/06, akpm@osdl.org <akpm@osdl.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:

Filesystem "loop4": Disabling barriers, not supported by the underlying device
XFS mounting filesystem loop4
Slab corruption: start=ef135b6c, len=304
Redzone: 0x5a2cf071/0x5a2cf071.
Last user: [<fdd1c363>](xfs_buf_free+0xb8/0xbd [xfs])
0d0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6c 6b 6b 6b
Prev obj: start=ef135a30, len=304
Redzone: 0x170fc2a5/0x170fc2a5.
Last user: [<fdd19dad>](kmem_zone_alloc+0x51/0x97 [xfs])
000: 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00
010: ad 4e ad de ff ff ff ff ff ff ff ff 00 00 00 00
Next obj: start=ef135ca8, len=304
Redzone: 0x5a2cf071/0x5a2cf071.
Last user: [<fdd1c363>](xfs_buf_free+0xb8/0xbd [xfs])
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b

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/)

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

[Andrew Morton]

On Thu, 24 Aug 2006 13:52:28 +0200
"Michal Piotrowski" <michal.k.k.piotrowski@gmail.com> wrote:

> Hi,
> 
> On 24/08/06, akpm@osdl.org <akpm@osdl.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:

Sigh, useless.

> [<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


There are a couple of recent futex changes, but they're fairly
innocent-looking.  What is the workload?

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

[Michal Piotrowski]

On 24/08/06, Andrew Morton <akpm@osdl.org> wrote:
> On Thu, 24 Aug 2006 13:52:28 +0200
> "Michal Piotrowski" <michal.k.k.piotrowski@gmail.com> wrote:
>
> > Hi,
> >
> > On 24/08/06, akpm@osdl.org <akpm@osdl.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:
>
> Sigh, useless.
>
> > [<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
>
>
> There are a couple of recent futex changes, but they're fairly
> innocent-looking.  What is the workload?
>
>

This script -> http://www.stardust.webpages.pl/files/mm/2.6.18-rc4-mm3/test_mount_fs.sh
+ Amarok.

ls -sh /home/fs-farm/
razem 3,6G
513M ext2.img  513M ext3.img  513M ext4.img  513M jfs.img  513M
reiser3.img  513M reiser4.img  513M xfs.img

Regards,
Michal

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