In the past few weeks I have been seeing the following
error message in my Dom0 several times a day.
It does not lead to the crash of anything. A second server,
same hardware and identically configured, doesn''t give this error.
This is Xen 3.1.0 as downloaded from the tarballs of xen.org
and running on top of RHEL 5.1.
BUG: soft lockup detected on CPU#0!
Call Trace:
<IRQ> [<ffffffff80258269>] softlockup_tick+0xcc/0xde
[<ffffffff8020e84d>] timer_interrupt+0x3a3/0x401
[<ffffffff80258898>] handle_IRQ_event+0x4b/0x93
[<ffffffff8025897e>] __do_IRQ+0x9e/0x100
[<ffffffff8020cc97>] do_IRQ+0x63/0x71
[<ffffffff8034b347>] evtchn_do_upcall+0xee/0x165
[<ffffffff8020abca>] do_hypervisor_callback+0x1e/0x2c
<EOI> [<ffffffff8020622a>] hypercall_page+0x22a/0x1000
[<ffffffff8020622a>] hypercall_page+0x22a/0x1000
[<ffffffff8034b258>] force_evtchn_callback+0xa/0xb
[<ffffffff803f2272>] thread_return+0xdf/0x119
[<ffffffff8020622a>] hypercall_page+0x22a/0x1000
[<ffffffff80228a25>] __cond_resched+0x1c/0x44
[<ffffffff803f25df>] cond_resched+0x37/0x42
[<ffffffff802343c4>] ksoftirqd+0x0/0xbf
[<ffffffff80234432>] ksoftirqd+0x6e/0xbf
[<ffffffff802422d7>] kthread+0xc8/0xf1
[<ffffffff8020ae1c>] child_rip+0xa/0x12
[<ffffffff8024220f>] kthread+0x0/0xf1
[<ffffffff8020ae12>] child_rip+0x0/0x12
In addition I am also seeing the following on the serial console of the
machine (not at the same time):
<Jan/16 05:01 am>(XEN) mm.c:612:d1 Non-privileged (1) attempt to map I/O
space 0
Any idea where this is coming from and how to fix it, would be helpful.
Steve Timm
--
------------------------------------------------------------------
Steven C. Timm, Ph.D (630) 840-8525
timm@fnal.gov http://home.fnal.gov/~timm/
Fermilab Computing Division, Scientific Computing Facilities,
Grid Facilities Department, FermiGrid Services Group, Assistant Group Leader.
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