Arch Linux

I can confirm this, happens to me too.

Everytime the cpufreq cpu scaling governor is set to "ondemand" or "userspace", I get these "soft lockup"-messages every 2-5 seconds. When set to "powersave" or "performance", they disappear, indicating that it probably has something to do with cpufreq and dynamic scaling of cpu speed.

System otherwise seems stable, with (maybe) a small slowdown.

My system :
Kernel: 2.6.23.8-1
2.6.23-ARCH #1 SMP PREEMPT Sun Nov 18 07:43:05 UTC 2007 i686 Intel(R) Pentium(R) M processor 1400MHz GenuineIntel GNU/Linux

I reverted to 2.6.23.1-6 for the time being, which works with no problems.

I can confirm this too.

Linux DELL-XPS-G2 2.6.23-ARCH #1 SMP PREEMPT Sun Nov 18 07:43:05 UTC 2007 i686 Intel(R) Pentium(R) M processor 2.13GHz GenuineIntel GNU/Linux

I can confirm this problem on my laptop
I found this on LKM [url]http://lkml.org/lkml/2007/11/20/188[/url]

I can confirm this error on a laptop and a PC, both of them using AMD64 single-core processors (i686 arch installed).

Same here on a desktop
kernel26 2.6.23.8-1
2.6.23-ARCH #1 SMP PREEMPT Sun Nov 18 07:43:05 UTC 2007 i686 AMD Athlon(tm) 64 Processor 3200+ AuthenticAMD GNU/Linux

Apart from filling up /var/log/messages.log, the "bug" does not seem to affect the system

This thread on the LKML explains the problem in detail, and provides some patches which fixes the issue :

http://lkml.org/lkml/2007/11/17/127

I have the same problem with Intel(R) Pentium(R) M processor 1.73GHz. I built kernel with patched softlockup.c Patched kernel does not generate error messages, but cpufreq daemon is still not working:
[root@alderaan ~]# /etc/rc.d/cpufreq restart
:: Setting cpufreq governing rules , cpu 0Error setting new values. Common errors:
- Do you have proper administration rights? (super-user?)
- Is the governor you requested available and modprobed?
- Trying to set an invalid policy?
- Trying to set a specific frequency, but userspace governor is not available,
for example because of hardware which cannot be set to a specific frequency
or because the userspace governor isn't loaded?
However
[root@alderaan ~]# cpufreq-set -g ondemand
works fine.
I have attached modified PKGBUILD and softlockup.c patch.

will be fixe don .9 kernel which should appear soon

Yesterday upgrade my arch 32 bits, in my ACER Aspire 5050 and now, when put a SD card or any USB drive I cant mount it, and recive this dmesg:
... (many lines ommiteds with the same)
BUG: soft lockup detected on CPU#0!
[<c0157d9a>] softlockup_tick+0xea/0x120
[<c0135853>] update_process_times+0x33/0x80
[<c0149077>] tick_sched_timer+0x77/0xf0
[<c0143fc3>] hrtimer_interrupt+0x163/0x1f0
[<c0149000>] tick_sched_timer+0x0/0xf0
[<c011ae90>] smp_apic_timer_interrupt+0x50/0x80
[<c0104fa4>] apic_timer_interrupt+0x28/0x30
[<de24e628>] fat_ent_read+0x28/0x1c0 [fat]
[<c0237e70>] cfq_set_request+0x0/0x310
[<de24b0c9>] fat_cache_add+0x59/0x120 [fat]
[<de24b333>] fat_get_cluster+0x1a3/0x310 [fat]
[<de24b5a4>] fat_bmap+0x104/0x290 [fat]
[<c022ac11>] elv_insert+0xd1/0x230
[<de2505f5>] fat_get_block+0x55/0x2a0 [fat]
[<c01a3201>] bio_alloc_bioset+0x81/0x150
[<c01a4157>] bio_add_page+0x37/0x50
[<c01a7891>] do_mpage_readpage+0x201/0x710
[<de2505a0>] fat_get_block+0x0/0x2a0 [fat]
[<c015c2c6>] add_to_page_cache+0x66/0xc0
[<c01a7f85>] mpage_readpages+0x95/0x150
[<de2505a0>] fat_get_block+0x0/0x2a0 [fat]
[<de250860>] fat_readpages+0x0/0x20 [fat]
[<c0162bea>] __do_page_cache_readahead+0x1da/0x2d0
[<de2505a0>] fat_get_block+0x0/0x2a0 [fat]
[<c0123a8c>] update_stats_wait_end+0x9c/0xd0
[<c0162f41>] ondemand_readahead+0x111/0x140
[<c015c630>] do_generic_mapping_read+0x170/0x520
[<c0124ac8>] __wake_up+0x38/0x50
[<c015e24c>] generic_file_aio_read+0x10c/0x1b0
[<c015bdd0>] file_read_actor+0x0/0xe0
[<c017e995>] do_sync_read+0xd5/0x120
[<c036115a>] __mutex_lock_slowpath+0x16a/0x2d0
[<c01403b0>] autoremove_wake_function+0x0/0x40
[<c017e8c0>] do_sync_read+0x0/0x120
[<c017f26b>] vfs_read+0xbb/0x140
[<c017f751>] sys_read+0x41/0x70
[<c0104482>] sysenter_past_esp+0x6b/0xa1
=======================
BUG: soft lockup detected on CPU#0!
[<c0157d9a>] softlockup_tick+0xea/0x120
[<c0135853>] update_process_times+0x33/0x80
[<c0149077>] tick_sched_timer+0x77/0xf0
[<c0143fc3>] hrtimer_interrupt+0x163/0x1f0
[<c0149000>] tick_sched_timer+0x0/0xf0
[<c011ae90>] smp_apic_timer_interrupt+0x50/0x80
[<c0104fa4>] apic_timer_interrupt+0x28/0x30
[<c01206b2>] native_safe_halt+0x2/0x10
[<c0102cbd>] default_idle+0x3d/0x60
[<c0102453>] cpu_idle+0x73/0xe0
[<c0435a6a>] start_kernel+0x30a/0x3a0
[<c0435140>] unknown_bootoption+0x0/0x1f0
=======================
BUG: soft lockup detected on CPU#0!
[<c0157d9a>] softlockup_tick+0xea/0x120
[<c0135853>] update_process_times+0x33/0x80
[<c0149077>] tick_sched_timer+0x77/0xf0
[<c0143fc3>] hrtimer_interrupt+0x163/0x1f0
[<c0149000>] tick_sched_timer+0x0/0xf0
[<c011ae90>] smp_apic_timer_interrupt+0x50/0x80
[<c0104fa4>] apic_timer_interrupt+0x28/0x30
[<c01206b2>] native_safe_halt+0x2/0x10
[<c0102cbd>] default_idle+0x3d/0x60
[<c0102453>] cpu_idle+0x73/0xe0
[<c0435a6a>] start_kernel+0x30a/0x3a0
[<c0435140>] unknown_bootoption+0x0/0x1f0
=======================
BUG: soft lockup detected on CPU#0!
[<c0157d9a>] softlockup_tick+0xea/0x120
[<c0135853>] update_process_times+0x33/0x80
[<c0149077>] tick_sched_timer+0x77/0xf0
[<c0143fc3>] hrtimer_interrupt+0x163/0x1f0
[<c0149000>] tick_sched_timer+0x0/0xf0
[<c011ae90>] smp_apic_timer_interrupt+0x50/0x80
[<c0104fa4>] apic_timer_interrupt+0x28/0x30
[<c01206b2>] native_safe_halt+0x2/0x10
[<c0102cbd>] default_idle+0x3d/0x60
[<c0102453>] cpu_idle+0x73/0xe0
[<c0435a6a>] start_kernel+0x30a/0x3a0
[<c0435140>] unknown_bootoption+0x0/0x1f0
=======================
BUG: soft lockup detected on CPU#0!
[<c0157d9a>] softlockup_tick+0xea/0x120
[<c0135853>] update_process_times+0x33/0x80
[<c0149077>] tick_sched_timer+0x77/0xf0
[<c0143fc3>] hrtimer_interrupt+0x163/0x1f0
[<c0149000>] tick_sched_timer+0x0/0xf0
[<c011ae90>] smp_apic_timer_interrupt+0x50/0x80
[<c0104fa4>] apic_timer_interrupt+0x28/0x30
[<c01206b2>] native_safe_halt+0x2/0x10
[<c0102cbd>] default_idle+0x3d/0x60
[<c0102453>] cpu_idle+0x73/0xe0
[<c0435a6a>] start_kernel+0x30a/0x3a0
[<c0435140>] unknown_bootoption+0x0/0x1f0
=======================
BUG: soft lockup detected on CPU#0!
[<c0157d9a>] softlockup_tick+0xea/0x120
[<c0135853>] update_process_times+0x33/0x80
[<c0149077>] tick_sched_timer+0x77/0xf0
[<c0143fc3>] hrtimer_interrupt+0x163/0x1f0
[<c0149000>] tick_sched_timer+0x0/0xf0
[<c011ae90>] smp_apic_timer_interrupt+0x50/0x80
[<c0104fa4>] apic_timer_interrupt+0x28/0x30
[<c01206b2>] native_safe_halt+0x2/0x10
[<c0102cbd>] default_idle+0x3d/0x60
[<c0102453>] cpu_idle+0x73/0xe0
[<c0435a6a>] start_kernel+0x30a/0x3a0
[<c0435140>] unknown_bootoption+0x0/0x1f0
=======================
BUG: soft lockup detected on CPU#0!
[<c0157d9a>] softlockup_tick+0xea/0x120
[<c0135853>] update_process_times+0x33/0x80
[<c0149077>] tick_sched_timer+0x77/0xf0
[<c0143fc3>] hrtimer_interrupt+0x163/0x1f0
[<c0149000>] tick_sched_timer+0x0/0xf0
[<c011ae90>] smp_apic_timer_interrupt+0x50/0x80
[<c012415d>] update_curr+0x12d/0x140
[<c0104fa4>] apic_timer_interrupt+0x28/0x30
[<c024001a>] __copy_to_user_ll+0x3a/0x70
[<c015be95>] file_read_actor+0xc5/0xe0
[<c015c824>] do_generic_mapping_read+0x364/0x520
[<c036115a>] __mutex_lock_slowpath+0x16a/0x2d0
[<c015e24c>] generic_file_aio_read+0x10c/0x1b0
[<c015bdd0>] file_read_actor+0x0/0xe0
[<c017e995>] do_sync_read+0xd5/0x120
[<c036115a>] __mutex_lock_slowpath+0x16a/0x2d0
[<c01403b0>] autoremove_wake_function+0x0/0x40
[<c017e8c0>] do_sync_read+0x0/0x120
[<c017f26b>] vfs_read+0xbb/0x140
[<c017f751>] sys_read+0x41/0x70
[<c0104482>] sysenter_past_esp+0x6b/0xa1
=======================
BUG: soft lockup detected on CPU#0!
[<c0157d9a>] softlockup_tick+0xea/0x120
[<c0135853>] update_process_times+0x33/0x80
[<c0149077>] tick_sched_timer+0x77/0xf0
[<c0143fc3>] hrtimer_interrupt+0x163/0x1f0
[<c0149000>] tick_sched_timer+0x0/0xf0
[<c011ae90>] smp_apic_timer_interrupt+0x50/0x80
[<c0104fa4>] apic_timer_interrupt+0x28/0x30
[<c01206b2>] native_safe_halt+0x2/0x10
[<c0102cbd>] default_idle+0x3d/0x60
[<c0102453>] cpu_idle+0x73/0xe0
[<c0435a6a>] start_kernel+0x30a/0x3a0
[<c0435140>] unknown_bootoption+0x0/0x1f0
=======================
mmc1: card 379c removed
BUG: soft lockup detected on CPU#0!
[<c0157d9a>] softlockup_tick+0xea/0x120
[<c0135853>] update_process_times+0x33/0x80
[<c0149077>] tick_sched_timer+0x77/0xf0
[<c0143fc3>] hrtimer_interrupt+0x163/0x1f0
[<c0149000>] tick_sched_timer+0x0/0xf0
[<c011ae90>] smp_apic_timer_interrupt+0x50/0x80
[<c0104fa4>] apic_timer_interrupt+0x28/0x30
[<c01206b2>] native_safe_halt+0x2/0x10
[<c0102cbd>] default_idle+0x3d/0x60
[<c0102453>] cpu_idle+0x73/0xe0
[<c0435a6a>] start_kernel+0x30a/0x3a0
[<c0435140>] unknown_bootoption+0x0/0x1f0
=======================
BUG: soft lockup detected on CPU#0!
[<c0157d9a>] softlockup_tick+0xea/0x120
[<c0135853>] update_process_times+0x33/0x80
[<c0149077>] tick_sched_timer+0x77/0xf0
[<c0143fc3>] hrtimer_interrupt+0x163/0x1f0
[<c0149000>] tick_sched_timer+0x0/0xf0
[<c011ae90>] smp_apic_timer_interrupt+0x50/0x80
[<c012415d>] update_curr+0x12d/0x140
[<c0104fa4>] apic_timer_interrupt+0x28/0x30
[<c024001a>] __copy_to_user_ll+0x3a/0x70
[<c015be95>] file_read_actor+0xc5/0xe0
[<c015c824>] do_generic_mapping_read+0x364/0x520
[<c015e24c>] generic_file_aio_read+0x10c/0x1b0
[<c015bdd0>] file_read_actor+0x0/0xe0
[<c017e995>] do_sync_read+0xd5/0x120
[<c036115a>] __mutex_lock_slowpath+0x16a/0x2d0
[<c01403b0>] autoremove_wake_function+0x0/0x40
[<c017e8c0>] do_sync_read+0x0/0x120
[<c017f26b>] vfs_read+0xbb/0x140
[<c017f751>] sys_read+0x41/0x70
[<c0104482>] sysenter_past_esp+0x6b/0xa1
=======================

after remove my cart dmesg say:

... (many lines ommiteds with the same)
BUG: soft lockup detected on CPU#0!
[<c0157d9a>] softlockup_tick+0xea/0x120
[<c0135853>] update_process_times+0x33/0x80
[<c0149077>] tick_sched_timer+0x77/0xf0
[<c0143fc3>] hrtimer_interrupt+0x163/0x1f0
[<c0149000>] tick_sched_timer+0x0/0xf0
[<c011ae90>] smp_apic_timer_interrupt+0x50/0x80
[<c0104fa4>] apic_timer_interrupt+0x28/0x30
[<c01206b2>] native_safe_halt+0x2/0x10
[<c0102cbd>] default_idle+0x3d/0x60
[<c0102453>] cpu_idle+0x73/0xe0
[<c0435a6a>] start_kernel+0x30a/0x3a0
[<c0435140>] unknown_bootoption+0x0/0x1f0
=======================

with my old kernel I don't recive this messeges. But with a VirtualBox VM with Windows XP I can work with USB. How can I send information for details?? Is this other bug, or not??? Thanks ArchDebugger teem!!! Its not urgent for me and I like cooperate with debug. Thanks!

http://www.archlinux.org/~tpowa/2.6.23/
does this kernel fix your issue?

Seems to work great, thanks tpowa!

I tried that kernel you linked to Tpowa and it crashed horrible when loading modules. I had to boot up on my cd and do a pacman -S kernel26 to go back to the one that spits out the error messg. It doesnt seem to have been logged though, i have searched through all files under /var/log and havent found anything.

Hi Tpowa,
this kernel fixes the problem, but now my laptop freezes when start X
I have an ATI card with the latest driver:
catalyst 7.11-1
catalyst-utils 7.11-1

This is the Xorg log file:

Did you download and install the catalyst-7.11-2-i686.pkg.tar.gz present in the same directory as tpowas kernel?

sure you need the modules too in this directory, the new cfs scheduler is incompatible with old modules

Ok, I'm feel very stupid :-)

Thank you Tpowa, the kernel works great!

Ok, the problem seems to be fixed. Thank you!

FIXED in kernel26-2.6.23.9-1

Dont know what you guys did to get it to work great but i'v tried both pacman from the testing and allso downloaded it from the link that tpowa added here. Both made my poor little laptop crash horrible. Should i just hold my breath and wait for it to come into core ? I can currently not listen to music (xmms) cause it crashes my comp :(