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IM back

Member

Registered: 2011-08-03

Posts: 14

Freezes durig while using network

My netbook (asus eepc 1215b) freezes randomly while using network. wifi or ethernet dosent seam to matter, but it has never happend while the network was dissabled (possible coincedence). the system freezes compleatly no VTs no caps-lock light. Via netconsole I recoverd this dmseg log from the time of a freeze:

hello netconsole works
[ 2657.923984] ieee80211 phy0: brcms_ops_config: change monitor mode: false (implement)
[ 2657.924039] ieee80211 phy0: brcms_ops_config: change power-save mode: false (implement)
[ 2657.929269] ieee80211 phy0: brcms_ops_bss_info_changed: qos enabled: false (implement)
[ 9622.885706] INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=18002 jiffies)
[ 9622.885706] Stack:
[ 9622.885706] Call Trace:
[ 9622.885706]  <IRQ> 
[ 9622.885706]  <EOI> 
[ 9622.885706] Code: 09 cf 3c 00 48 8b 05 99 0b 90 00 bf 02 00 00 00 ff 90 e8 00 00 00 eb 13 0f 1f 40 00 bf 58 89 41 00 e8 16 cb 1f 00 83 eb 01 74 0a 
[ 9622.885706]  83 3d b9 09 90 00 00 75 e7 f0 80 25 6f 04 9f 00 fe eb 9a 90 
[ 9802.992355] INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=72034 jiffies)
[ 9802.992355] Stack:
[ 9802.992355] Call Trace:
[ 9802.992355]  <IRQ> 
[ 9802.992355]  <EOI> 
[ 9802.992355] Code: 04 08 00 0d 00 00 08 00 09 f8 83 ff 02 0f 44 c2 89 04 25 00 b3 5f ff 5d c3 48 8b 3d 55 07 5d 00 be 02 00 00 00 e8 8b fd ff ff 5d <c3> 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 66 66 66 66 90 80 3d 
[ 9983.099003] INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=126066 jiffies)
[ 9983.099003] Stack:
[ 9983.099003] Call Trace:
[ 9983.099003]  <IRQ> 
[ 9983.099003]  <EOI> 
[ 9983.099003] Code: 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 66 66 66 66 90 65 48 8b 14 25 58 2d 01 00 48 8d 0c 92 48 8d 04 bd 00 00 00 00 
[ 9983.099003]  89 ca 48 c1 e2 04 48 29 ca f7 e2 48 8d 7a 01 e8 ad ff ff ff 
[10163.205652] INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=180098 jiffies)
[10163.205652] Stack:
[10163.205652] Call Trace:
[10163.205652]  <IRQ> 
[10163.205652]  <EOI> 
[10163.205652] Code: 09 cf 3c 00 48 8b 05 99 0b 90 00 bf 02 00 00 00 ff 90 e8 00 00 00 eb 13 0f 1f 40 00 bf 58 89 41 00 e8 16 cb 1f 00 83 eb 01 74 0a 
[10163.205652]  83 3d b9 09 90 00 00 75 e7 f0 80 25 6f 04 9f 00 fe eb 9a 90 
[10343.312300] INFO: rcu_preempt_state detected stalls on CPUs/tasks: {[10523.418949] INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=288162 jiffies)
[10523.418949] Stack:
[10523.418949] Call Trace:
[10523.418949]  <IRQ> 
[10523.418949]  <EOI> 
[10523.418949] Code: 04 08 00 0d 00 00 08 00 09 f8 83 ff 02 0f 44 c2 89 04 25 00 b3 5f ff 5d c3 48 8b 3d 55 07 5d 00 be 02 00 00 00 e8 8b fd ff ff 5d <c3> 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 66 66 66 66 90 80 3d 
[10703.525598] INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=342194 jiffies)
[10703.525598] Stack:
[10703.525598] Call Trace:
[10703.525598]  <IRQ> 
[10703.525598]  <EOI> 
[10703.525598] Code: 04 08 00 0d 00 00 08 00 09 f8 83 ff 02 0f 44 c2 89 04 25 00 b3 5f ff 5d c3 48 8b 3d 55 07 5d 00 be 02 00 00 00 e8 8b fd ff ff 5d <c3> 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 66 66 66 66 90 80 3d 
[10883.632247] INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=396226 jiffies)
[10883.632247] Stack:
[10883.632247] Call Trace:
[10883.632247]  <IRQ> 
[10883.632247]  <EOI> 
[10883.632247] Code: ff c8 5d c3 66 0f 1f 44 00 00 55 48 89 e5 66 66 66 66 90 ff 15 f9 20 6b 00 5d c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 
[10883.632247]  89 e5 66 66 66 66 90 65 48 8b 14 25 58 2d 01 00 48 8d 0c 92 
[11063.738895] INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=450258 jiffies)
[11063.738895] Stack:
[11063.738895] Call Trace:
[11063.738895]  <IRQ> 
[11063.738895]  <EOI> 
[11063.738895] Code: ff c8 5d c3 66 0f 1f 44 00 00 55 48 89 e5 66 66 66 66 90 ff 15 f9 20 6b 00 5d c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 
[11063.738895]  89 e5 66 66 66 66 90 65 48 8b 14 25 58 2d 01 00 48 8d 0c 92 
[11243.845544] INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=504290 jiffies)
[11243.845544] Stack:
[11243.845544] Call Trace:
[11243.845544]  <IRQ> 
[11243.845544]  <EOI> 
[11243.845544] Code: 04 08 00 0d 00 00 08 00 09 f8 83 ff 02 0f 44 c2 89 04 25 00 b3 5f ff 5d c3 48 8b 3d 55 07 5d 00 be 02 00 00 00 e8 8b fd ff ff 5d <c3> 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 66 66 66 66 90 80 3d 
[11423.952192] INFO: rcu_preempt_state detected stalls on CPUs/tasks: {[11604.058841] INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=612354 jiffies)
[11604.058841] Stack:
[11604.058841] Call Trace:
[11604.058841]  <IRQ> 
[11604.058841]  <EOI> 
[11604.058841] Code: ff c8 5d c3 66 0f 1f 44 00 00 55 48 89 e5 66 66 66 66 90 ff 15 f9 20 6b 00 5d c3 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 
[11604.058841]  89 e5 66 66 66 66 90 65 48 8b 14 25 58 2d 01 00 48 8d 0c 92 
[11784.165490] INFO: rcu_preempt_state detected stalls on CPUs/tasks: { 0} (detected by 1, t=666386 jiffies)
[11784.165490] Stack:
[11784.165490] Call Trace:
[11784.165490]  <IRQ> 
[11784.165490]  <EOI> 
[11784.165490] Code: 04 08 00 0d 00 00 08 00 09 f8 83 ff 02 0f 44 c2 89 04 25 00 b3 5f ff 5d c3 48 8b 3d 55 07 5d 00 be 02 00 00 00 e8 8b fd ff ff 5d <c3> 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 66 66 66 66 90 80 3d

repeating until I hard reset the system

/dev/zero

Member

From: Melbourne, Australia

Registered: 2011-10-20

Posts: 1,247

Re: Freezes durig while using network

Did you stfw? I can see several results for "INFO: rcu_preempt_state detected stalls on CPUs/tasks". Always search the web for relevant error messages first.

IM back

Member

Registered: 2011-08-03

Posts: 14

Re: Freezes durig while using network

jup but all results are related to kernel 3.1 upgrades this started happening before the upgrade to 3.1. (took me a long time to get anoid enuff to do a netconsole as there is no info in the logs)

and im not quite knowlagabel to make sense of ths: http://www.kernel.org/doc/Documentation … llwarn.txt particularly the last line

Last edited by IM back (2011-12-19 21:34:20)

/dev/zero

Member

From: Melbourne, Australia

Registered: 2011-10-20

Posts: 1,247

Re: Freezes durig while using network

I trust you saw the bit about obtaining a stack trace? Figuring out how to do that would be my next step.