RE: help needed, 2.6.31.6-rt19 hang with network user app

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> -----Original Message-----
> From: Thomas Gleixner [mailto:tglx@xxxxxxxxxxxxx]
> Sent: Friday, November 27, 2009 1:43 PM
> To: Leyendecker, Robert
> Cc: Nikita V. Youshchenko; rt-users
> Subject: RE: help needed, 2.6.31.6-rt19 hang with network user app
> 
> On Fri, 20 Nov 2009, Leyendecker, Robert wrote:
> 
> > Here is what was in the log/messages - I assume this is what was
> > sent to kernel.org.  Host B is reporting destination unreachables at
> > time of freeze.  Hope this log is useful. I have the full log from
> > start of boot I can zip it up if you would like. At the bottom you
> > can see where it is rebooting due to power cycle.
> 
> > Nov 20 21:12:00 localhost kernel: BUG: using smp_processor_id() in
> preemptible [00000000] code: smash/6801
> > Nov 20 21:12:00 localhost kernel: caller is __schedule+0xe/0x7d4
> > Nov 20 21:12:00 localhost kernel: Pid: 6801, comm: smash Not tainted
> 2.6.31.6-rt19 #1
> > Nov 20 21:12:00 localhost kernel: Call Trace:
> > Nov 20 21:12:00 localhost kernel: [<c06dc3df>] ? printk+0xf/0x18
> > Nov 20 21:12:00 localhost kernel: [<c05499a6>]
> debug_smp_processor_id+0xa6/0xbc
> > Nov 20 21:12:00 localhost kernel: [<c06dc689>] __schedule+0xe/0x7d4
> > Nov 20 21:12:00 localhost kernel: [<c046621f>] ?
> audit_syscall_exit+0xfa/0x10f
> > Nov 20 21:12:00 localhost kernel: [<c040a955>] ?
> syscall_trace_leave+0xc8/0xef
> > Nov 20 21:12:00 localhost kernel: [<c040338a>] work_resched+0x5/0x19
> 
> Hmm, that comes from the low level code. We should have interrupts
> disabled here, but I have a hard time to figure out the call path in
> the ASM maze of entry_32.S. Still investigating.
> 
> Thanks,
> 
> 	tglx

Thomas-

Thank you for the help on this,

-Bob

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