[asterisk-bugs] [DAHDI-linux 0015647]: Server crash after I do ntpdate -u ntp.nasa.gov

Asterisk Bug Tracker noreply at bugs.digium.com
Tue Aug 4 11:22:56 CDT 2009 

The following issue has been RESOLVED. 
====================================================================== 
https://issues.asterisk.org/view.php?id=15647 
====================================================================== 
Reported By:                missnebun
Assigned To:                sruffell
====================================================================== 
Project:                    DAHDI-linux
Issue ID:                   15647
Category:                   dahdi_dummy
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     resolved
Resolution:                 fixed
Fixed in Version:           
====================================================================== 
Date Submitted:             2009-08-03 22:14 CDT
Last Modified:              2009-08-04 11:22 CDT
====================================================================== 
Summary:                    Server crash after I do ntpdate -u ntp.nasa.gov
Description: 
I compile the last version ... the same ...
I do ntpdate -u ntpnasa.gov takes like few min with the error and then
crash.

Aug  3 22:44:34 pbx1 kernel: BUG: soft lockup - CPU#1 stuck for 10s!
[swapper:0]
Aug  3 22:44:34 pbx1 kernel:
Aug  3 22:44:34 pbx1 kernel: Pid: 0, comm:              swapper
Aug  3 22:44:34 pbx1 kernel: EIP: 0060:[<c060f4d8>] CPU: 1
Aug  3 22:44:34 pbx1 kernel: EIP is at _spin_unlock_irqrestore+0x8/0x9
Aug  3 22:44:34 pbx1 kernel:  EFLAGS: 00000246    Tainted: G      
(2.6.18-128.2.1.el5PAE https://issues.asterisk.org/view.php?id=1)
Aug  3 22:44:34 pbx1 kernel: EAX: f8f737f0 EBX: 00000002 ECX: 00000246
EDX: 00000200
Aug  3 22:44:34 pbx1 kernel: ESI: 00000001 EDI: f8f819e0 EBP: 00000000 DS:
007b ES: 007b
Aug  3 22:44:34 pbx1 kernel: CR0: 8005003b CR2: b7d54000 CR3: 0072c000
CR4: 000006f0
Aug  3 22:44:34 pbx1 kernel:  [<f8f69b90>] dahdi_receive+0x755/0x776
[dahdi]
Aug  3 22:44:34 pbx1 kernel:  [<f8f6d147>] dahdi_transmit+0x11/0x48d
[dahdi]
Aug  3 22:44:34 pbx1 kernel:  [<f8efd26b>] dahdi_dummy_timer+0x8b/0xcc
[dahdi_dummy]
Aug  3 22:44:34 pbx1 kernel:  [<f8efd1e0>] dahdi_dummy_timer+0x0/0xcc
[dahdi_dummy]
Aug  3 22:44:34 pbx1 kernel:  [<c042c5b1>] run_timer_softirq+0xfb/0x151
Aug  3 22:44:34 pbx1 kernel:  [<c0429047>] __do_softirq+0x87/0x114
Aug  3 22:44:34 pbx1 kernel:  [<c04073d7>] do_softirq+0x52/0x9c
Aug  3 22:44:34 pbx1 kernel:  [<c04059d7>] apic_timer_interrupt+0x1f/0x24
Aug  3 22:44:34 pbx1 kernel:  [<c0403bb0>] default_idle+0x0/0x59
Aug  3 22:44:34 pbx1 kernel:  [<c0403be1>] default_idle+0x31/0x59
Aug  3 22:44:34 pbx1 kernel:  [<c0403ca8>] cpu_idle+0x9f/0xb9
Aug  3 22:44:34 pbx1 kernel:  =======================
Aug  3 22:44:44 pbx1 kernel: BUG: soft lockup - CPU#1 stuck for 10s!
[swapper:0]
Aug  3 22:44:44 pbx1 kernel:
Aug  3 22:44:44 pbx1 kernel: Pid: 0, comm:              swapper
Aug  3 22:44:44 pbx1 kernel: EIP: 0060:[<c060f4d8>] CPU: 1
Aug  3 22:44:44 pbx1 kernel: EIP is at _spin_unlock_irqrestore+0x8/0x9
Aug  3 22:44:44 pbx1 kernel:  EFLAGS: 00000246    Tainted: G      
(2.6.18-128.2.1.el5PAE https://issues.asterisk.org/view.php?id=1)
Aug  3 22:44:44 pbx1 kernel: EAX: f8f737f0 EBX: 00000002 ECX: 00000246
EDX: 00000200
Aug  3 22:44:44 pbx1 kernel: ESI: 00000001 EDI: f8f819e0 EBP: 00000000 DS:
007b ES: 007b
Aug  3 22:44:44 pbx1 kernel: CR0: 8005003b CR2: b7d54000 CR3: 0072c000
CR4: 000006f0
Aug  3 22:44:44 pbx1 kernel:  [<f8f69b90>] dahdi_receive+0x755/0x776
[dahdi]
Aug  3 22:44:44 pbx1 kernel:  [<f8f69bad>] dahdi_receive+0x772/0x776
[dahdi]
Aug  3 22:44:44 pbx1 kernel:  [<f8efd26b>] dahdi_dummy_timer+0x8b/0xcc
[dahdi_dummy]
Aug  3 22:44:44 pbx1 kernel:  [<f8efd1e0>] dahdi_dummy_timer+0x0/0xcc
[dahdi_dummy]
Aug  3 22:44:44 pbx1 kernel:  [<c042c5b1>] run_timer_softirq+0xfb/0x151
Aug  3 22:44:44 pbx1 kernel:  [<c0429047>] __do_softirq+0x87/0x114
Aug  3 22:44:44 pbx1 kernel:  [<c04073d7>] do_softirq+0x52/0x9c
Aug  3 22:44:44 pbx1 kernel:  [<c04059d7>] apic_timer_interrupt+0x1f/0x24
Aug  3 22:44:44 pbx1 kernel:  [<c0403bb0>] default_idle+0x0/0x59
Aug  3 22:44:44 pbx1 kernel:  [<c0403be1>] default_idle+0x31/0x59
Aug  3 22:44:44 pbx1 kernel:  [<c0403ca8>] cpu_idle+0x9f/0xb9
Aug  3 22:44:44 pbx1 kernel:  =======================
Aug  3 22:44:54 pbx1 kernel: BUG: soft lockup - CPU#1 stuck for 10s!
[swapper:0]
Aug  3 22:44:54 pbx1 kernel:
Aug  3 22:44:54 pbx1 kernel: Pid: 0, comm:              swapper
Aug  3 22:44:54 pbx1 kernel: EIP: 0060:[<c060f4d8>] CPU: 1
Aug  3 22:44:54 pbx1 kernel: EIP is at _spin_unlock_irqrestore+0x8/0x9
Aug  3 22:44:54 pbx1 kernel:  EFLAGS: 00000246    Tainted: G      
(2.6.18-128.2.1.el5PAE https://issues.asterisk.org/view.php?id=1)
Aug  3 22:44:54 pbx1 kernel: EAX: f8f737f0 EBX: 00000002 ECX: 00000246
EDX: 00000200
Aug  3 22:44:54 pbx1 kernel: ESI: 00000001 EDI: f8f859f0 EBP: 00000000 DS:
007b ES: 007b
Aug  3 22:44:54 pbx1 kernel: CR0: 8005003b CR2: b7d54000 CR3: 0072c000
CR4: 000006f0
Aug  3 22:44:54 pbx1 kernel:  [<f8f69b90>] dahdi_receive+0x755/0x776
[dahdi]
Aug  3 22:44:54 pbx1 kernel:  [<f8f69440>] dahdi_receive+0x5/0x776
[dahdi]
Aug  3 22:44:54 pbx1 kernel:  [<f8efd26b>] dahdi_dummy_timer+0x8b/0xcc
[dahdi_dummy]
Aug  3 22:44:54 pbx1 kernel:  [<f8efd1e0>] dahdi_dummy_timer+0x0/0xcc
[dahdi_dummy]
Aug  3 22:44:54 pbx1 kernel:  [<c042c5b1>] run_timer_softirq+0xfb/0x151
Aug  3 22:44:54 pbx1 kernel:  [<c0429047>] __do_softirq+0x87/0x114
Aug  3 22:44:54 pbx1 kernel:  [<c04073d7>] do_softirq+0x52/0x9c
Aug  3 22:44:54 pbx1 kernel:  [<c04059d7>] apic_timer_interrupt+0x1f/0x24
Aug  3 22:44:54 pbx1 kernel:  [<c0403bb0>] default_idle+0x0/0x59
Aug  3 22:44:54 pbx1 kernel:  [<c0403be1>] default_idle+0x31/0x59
Aug  3 22:44:54 pbx1 kernel:  [<c0403ca8>] cpu_idle+0x9f/0xb9
Aug  3 22:44:54 pbx1 kernel:  =======================

====================================================================== 

---------------------------------------------------------------------- 
 (0108601) svnbot (reporter) - 2009-08-04 11:22
 https://issues.asterisk.org/view.php?id=15647#c108601 
---------------------------------------------------------------------- 
Repository: dahdi
Revision: 6933

U   linux/trunk/drivers/dahdi/dahdi_dummy.c

------------------------------------------------------------------------
r6933 | sruffell | 2009-08-04 11:22:55 -0500 (Tue, 04 Aug 2009) | 10 lines

dahdi_dummy: Do not allow jumps in system time to lock up the system.

Since dahdi_dummy uses the number of milliseconds that has actually passed
to
determine how many times to call dahdi_receive, it is possible that if the
system time shifts after dahdi is started, that the system can appear to
lock
up while dahdi_dummy attempts to catch up.  This change prevents soft lock
ups
under these conditions.

(closes issue https://issues.asterisk.org/view.php?id=15647)
Reported by: missnebun
------------------------------------------------------------------------

http://svn.digium.com/view/dahdi?view=rev&revision=6933 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-08-04 11:22 svnbot         Note Added: 0108601                          
2009-08-04 11:22 svnbot         Status                   assigned => resolved
2009-08-04 11:22 svnbot         Resolution               open => fixed       
======================================================================

More information about the asterisk-bugs mailing list