Re:[parisc-linux] "BUG: soft lockup detected on CPU#0" on recent 64bit k-2.6.16 (up or smp)

Re:[parisc-linux] "BUG: soft lockup detected on CPU#0" on recent 64bit k-2.6.16 (up or smp)

[Joel Soete]

Hello pa*,
> 
[snip]
> 
> also noticed on n4k runing k-2.6.16-pa0 64bit smp kernel:
> BUG: soft lockup detected on CPU#0!
> 
[...]
>  IAOQ[0]: _read_lock+0x18/0x30
>  IAOQ[1]: _read_lock+0x8/0x30
>  RP(r2): send_group_sig_info+0x3c/0xb0
> 
This kind of hung re-occured on this n4k (64bit smp kernel 2.6.16-pa8);

I just grab the piminfo but useless:
[...]
Parse IAOQ =3D 0x000000ffff80ff3c for CPU[1]

Func: _end, Off: 0xffef1f1244, Addr: 0xffff80ff3c
[...]

Parse IAOQ =3D 0x00000000000006c4 for CPU[3]

[...]

Sorry,
    Joel

PS: I just start the same test but without CONFIG_DETECT_SOFTLOCKUP :<?
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Re: [parisc-linux] "BUG: soft lockup detected on CPU#0" on recent 64bit k-2.6.16 (up or smp)

[Joel Soete]

Joel Soete wrote:
> Hello pa*,
> 
> [snip]
> 
>>also noticed on n4k runing k-2.6.16-pa0 64bit smp kernel:
>>BUG: soft lockup detected on CPU#0!
>>
> 
> [...]
> 
>> IAOQ[0]: _read_lock+0x18/0x30
>> IAOQ[1]: _read_lock+0x8/0x30
>> RP(r2): send_group_sig_info+0x3c/0xb0
>>
> 
> This kind of hung re-occured on this n4k (64bit smp kernel 2.6.16-pa8);
> 
> I just grab the piminfo but useless:
> [...]
> Parse IAOQ = 0x000000ffff80ff3c for CPU[1]
> 
> Func: _end, Off: 0xffef1f1244, Addr: 0xffff80ff3c
> [...]
> 
> Parse IAOQ = 0x00000000000006c4 for CPU[3]
> 
> [...]
> 
> Sorry,
>     Joel
> 
> PS: I just start the same test but without CONFIG_DETECT_SOFTLOCKUP :<?
> 
well never the less system still hanging after only:
top - 09:04:58 up 1 day, 16:26,  3 users,  load average: 2.40, 2.26, 2.20

training the same test (kernel build in loop)
(just this time without "BUG: soft lockup detected on CPU#0!" msg?)

Thanks,
	Joel
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Re:[parisc-linux] "BUG: soft lockup detected on CPU#0" on recent 64bit k-2.6.16 (up or smp)

[Joel Soete]

> Hello pa*,
> 
> Just to report some "BUG: soft lockup detected on CPU#0":
> on b2k testing k-2.6.16-pa4 64bit up:
> BUG: soft lockup detected on CPU#0!
> 
[snip]

>  IAOQ[0]: _read_lock+0x18/0x30
>  IAOQ[1]: _read_lock+0x8/0x30
>  RP(r2): send_group_sig_info+0x3c/0xb0
> 
> (on this system also with a previous k-2.6.16-rc4-pa1-n4kmp without act=
ivity
> then waiting my request ;-) )
> 
Hi all,

Could that be the result of the upstream bug:
<http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.4>

At least in the way; I will test it ...

Thanks,
    Joel


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Re: [parisc-linux] "BUG: soft lockup detected on CPU#0" on recent 64bit k-2.6.16 (up or smp)

[Joel Soete]

Joel Soete wrote:
>>Hello pa*,
>>
>>Just to report some "BUG: soft lockup detected on CPU#0":
>>on b2k testing k-2.6.16-pa4 64bit up:
>>BUG: soft lockup detected on CPU#0!
>>
> 
> [snip]
> 
> 
>> IAOQ[0]: _read_lock+0x18/0x30
>> IAOQ[1]: _read_lock+0x8/0x30
>> RP(r2): send_group_sig_info+0x3c/0xb0
>>
>>(on this system also with a previous k-2.6.16-rc4-pa1-n4kmp without activity
>>then waiting my request ;-) )
>>
> 
> Hi all,
> 
> Could that be the result of the upstream bug:
> <http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.4>
> 
> At least in the way; I will test it ...
> 
mmm, seems to help 64bit up kernel runing for a bit more then 3 days on b2k (building in loop kernel)

OTOH not for smp neither on 32bit nor 64bit:
	* 32bit smp 2.6.17-rc1-pa2 hang after some 2 days of run (loop kernel build) on a d380 with msg:
[230961.320000] BUG: soft lockup detected on CPU#1!
[230961.370000] Backtrace:
[230961.400000]  [<10157900>] softlockup_tick+0xf8/0x140
[230961.460000]  [<1013e080>] update_process_times+0x44/0x94
[230961.500000]  [<10109510>] timer_interrupt+0xcc/0x1e4
[230961.500000]  [<10157a58>] handle_IRQ_event+0x5c/0xa4
[230961.500000]  [<10157b44>] __do_IRQ+0xa4/0x220
[230961.500000]  [<10109ca0>] do_cpu_irq_mask+0xd8/0x1b0
[230961.500000]  [<1010c068>] intr_return+0x0/0x1c
[230961.500000]
[230961.500000] BUG: soft lockup detected on CPU#0!
[230961.500000] Backtrace:
[230961.500000]  [<10157900>] softlockup_tick+0xf8/0x140
[230961.500000]  [<1013e080>] update_process_times+0x44/0x94
[230961.500000]  [<10109510>] timer_interrupt+0xcc/0x1e4
[230961.500000]  [<10157a58>] handle_IRQ_event+0x5c/0xa4
[230961.500000]  [<10157b44>] __do_IRQ+0xa4/0x220
[230961.500000]  [<10109ca0>] do_cpu_irq_mask+0xd8/0x1b0
[230961.500000]  [<1010c068>] intr_return+0x0/0x1c
[230961.500000]

	* 64bit smp still hang silently after a bit more then 2 days of same build loop ;-(
	  (even with DETECT_SOFTLOCKUP = y?)

Joel

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[parisc-linux] "BUG: soft lockup detected on CPU#0" on recent 64bit k-2.6.16 (up or smp)

[Joel Soete]

Hello pa*,

Just to report some "BUG: soft lockup detected on CPU#0":
on b2k testing k-2.6.16-pa4 64bit up:
BUG: soft lockup detected on CPU#0!

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001000000000000001111 Not tainted
r00-03  0000000000000000 0079dd400000003e 0000000010111bdc 0000000010648c=
e0
r04-07  00000000105cbc20 fffc1302123ce2c3 0000000009a447a4 000000008600c0=
62
r08-11  000000000800000f 0000000010648c70 0000000010574bd0 00000000104cb7=
d8
r12-15  0000000010574d28 00000000104cb820 0000000016568ca8 00000000000000=
00
r16-19  00000000165684f0 00000000144006c8 00000000000477a8 00000000c54000=
00
r20-23  0000000000000000 0000000000000000 000000000000007c 00000000000000=
00
r24-27  0000000000000000 000000000000fa00 000000000079dd40 00000000105cbc=
20
r28-31  fffffffffff0bdc0 0000000000000000 0000000016568e10 00000000000f40=
00
sr0-3   0000000000ab3000 0000000000000000 0000000000000000 0000000000ab30=
00
sr4-7   0000000000000000 0000000000000000 0000000000000000 00000000000000=
00

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000=
000
fr04-07  0000000010defb80 00000000105cbc20 ffffffffffffff9c 0000000000000=
000
fr08-11  fffffffffffffc18 0000000000000000 0000000000000802 0000000010da2=
ac0
fr12-15  0000000410da2ad0 0004739e105cbc20 0000000000000000 5555555555555=
555
fr16-19  5555555555555555 5555555555555555 5555555555555555 5555555555555=
555
fr20-23  000000001018a420 5555555555555555 000000000000007c 0000000000000=
000
fr24-27  0000000000000000 3fe0000000000000 412e848000000000 bec7de009e9e8=
cec
fr28-31  036583df286abc0a 2fe9bb4be37ae44c 036583df00000000 cb458fb500000=
802

IASQ: 0000000000000000 0000000000000000 IAOQ: 0000000010111c18 0000000010=
111c1c
 IIR: 0b850a25    ISR: 0000000000000000  IOR: 0000000010648868
 CPU:        0   CR30: 0000000016568000 CR31: 0000000010584000
 ORIG_R28: 00000000104cb7d8
 IAOQ[0]: do_gettimeofday+0x150/0x1a0
 IAOQ[1]: do_gettimeofday+0x154/0x1a0
 RP(r2): do_gettimeofday+0x114/0x1a0

also noticed on n4k runing k-2.6.16-pa0 64bit smp kernel:
BUG: soft lockup detected on CPU#0!

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000001011101111110000001111 Not tainted
r00-03  0000000000000000 0000000010584f20 000000001015aebc 000000008db449=
f0
r04-07  000000001057af20 000000001051d040 000000000000000e 00000000000000=
01
r08-11  000000008f2cb738 00002d1426893f20 0000000000000001 00000000000000=
01
r12-15  000000001052b5d8 000000001048d728 000000008b1bc3b0 000000008b1bc6=
f8
r16-19  000000008b1bc3b0 000000001051d040 0000000000000000 00000000000000=
00
r20-23  0000000000372b98 0000000000000000 0000000000000001 00000000000000=
00
r24-27  000000008f2cb738 0000000000000001 000000001051d040 000000001057af=
20
r28-31  0000000000000000 000000008b1bcc20 000000008b1bcc50 00000000000000=
00
sr0-3   00000000006e4800 00000000006e4800 0000000000000000 00000000006e48=
00
sr4-7   0000000000000000 0000000000000000 0000000000000000 00000000000000=
00

      VZOUICununcqcqcqcqcqcrmunTDVZOUI
FPSR: 00000000000000000000000000000000
FPER1: 00000000
fr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000000=
000
fr04-07  000000008f0276c0 000000001057af20 ffffffffffffff9c 00000000105db=
000
fr08-11  00000000101ac718 00000000105db000 fffffffffffffc18 0000000000000=
000
fr12-15  c002c4c800000802 ffffffff1299aac0 000000001299aad0 000000001057a=
f20
fr16-19  0000000000000000 00000000105d62a8 00000000105d62a8 00000000ff800=
730
fr20-23  00000000101ad170 0000000000000000 000000000000a105 0000000000000=
008
fr24-27  0000000000000000 000000001be51d00 00000000105d62a8 00000000104f1=
3e8
fr28-31  000f41fa42806500 fffffffffffffc18 0000000000000000 0000000000000=
802

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001010e728 0000000010=
10e718
 IIR: 0f48109c    ISR: 0000000000000080  IOR: 0000000000000002
 CPU:        0   CR30: 000000008b1bc000 CR31: 000000001053c000
 ORIG_R28: 000000001013f77c
 IAOQ[0]: _read_lock+0x18/0x30
 IAOQ[1]: _read_lock+0x8/0x30
 RP(r2): send_group_sig_info+0x3c/0xb0

(on this system also with a previous k-2.6.16-rc4-pa1-n4kmp without activ=
ity
then waiting my request ;-) )

Hth,
    Joel
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