Re: 2.6.19-rt11 boot failure

I see the attached two messages on the console output. In one case for me 2.6.19-rt11 seemed to boot ok, in other case it do not seem to. I am not sure if this problem is related to disabled HPET, but I will try that also.

Gautam

Kernel 2.6.19-rt11-UNI on an i686

a.simple-2-nodes.corbatests.emulab.net login: softirq-timer/0/4[CPU#0]: BUG in update_wall_time0
 [<c0104c54>] dump_trace+0x69/0x1ac
 [<c0104dae>] show_trace_log_lvl+0x17/0x2b
 [<c041e7f9>] pmap_getport_ops+0xbc5/0x5df00
DWARF2 unwinder stuck at pmap_getport_ops+0xbc5/0x5df00

Leftover inexact backtrace:

 [<c01050fc>] show_trace+0xf/0x11
 [<c0105111>] dump_stack+0x13/0x15
 [<c011bf16>] __WARN_ON+0x5b/0x89
 [<c01237ce>] run_timer_softirq+0xd8/0xb21
 [<c0102ed6>] __switch_to+0x19/0x182
 [<c012d5cc>] posix_cpu_timers_thread+0x0/0xc3
 [<c03feec9>] preempt_schedule_irq+0x37/0x58
 [<c011f968>] ksoftirqd+0x0/0x179
 [<c03ff378>] schedule+0xc6/0xe2
 [<c011f968>] ksoftirqd+0x0/0x179
 [<c011fa53>] ksoftirqd+0xeb/0x179
 [<c012bbbe>] kthread+0xac/0xda
 [<c012bb12>] kthread+0x0/0xda
 [<c01049f3>] kernel_thread_helper+0x7/0x10
 =======================

Fedora Core release 4 (Stentz)
Kernel 2.6.19-rt11-UNI on an i686

a.simple-2-nodes.corbatests.emulab.net login:      

Boot Complete

Fedora Core release 4 (Stentz)
Kernel 2.6.19-rt11-UNI on an i686

a.simple-2-nodes.corbatests.emulab.net login: softirq-timer/0/4[CPU#0]: BUG in update_wall_time0
 [<c0104c54>] dump_trace+0x69/0x1ac
 [<c0104dae>] show_trace_log_lvl+0x17/0x2b
 [<c041e7f9>] pmap_getport_ops+0xbc5/0x5df00
DWARF2 unwinder stuck at pmap_getport_ops+0xbc5/0x5df00

Leftover inexact backtrace:

 [<c01050fc>] show_trace+0xf/0x11
 [<c0105111>] dump_stack+0x13/0x15
 [<c011bf16>] __WARN_ON+0x5b/0x89
 [<c01237ce>] run_timer_softirq+0xd8/0xb21
 [<c012d5cc>] posix_cpu_timers_thread+0x0/0xc3
 [<c0102ed6>] __switch_to+0x19/0x182
 [<c012d5cc>] posix_cpu_timers_thread+0x0/0xc3
 [<c011f968>] ksoftirqd+0x0/0x179
 [<c03ff378>] schedule+0xc6/0xe2
 [<c011f968>] ksoftirqd+0x0/0x179
 [<c011fa53>] ksoftirqd+0xeb/0x179
 [<c012bbbe>] kthread+0xac/0xda
 [<c012bb12>] kthread+0x0/0xda
 [<c01049f3>] kernel_thread_helper+0x7/0x10
 =======================
BUG: time warp detected!
prev > now, 1d2da428324317aa > e312d9e1df154b25:
= 4186881206986329221 delta, on CPU#0
 [<c0104c54>] dump_trace+0x69/0x1ac
 [<c0104dae>] show_trace_log_lvl+0x17/0x2b
 [<c041e7f9>] pmap_getport_ops+0xbc5/0x5df00
DWARF2 unwinder stuck at pmap_getport_ops+0xbc5/0x5df00

Leftover inexact backtrace:

 [<c01050fc>] show_trace+0xf/0x11
 [<c0105111>] dump_stack+0x13/0x15
 [<c01232fe>] do_gettimeofday+0x151/0x17f
 [<c011f001>] sys_time+0x9/0x2d
 [<c0103e49>] sysenter_past_esp+0x56/0x79
 =======================

---

• References:
  • 2.6.19-rt11 boot failure
    • From: "Rui Nuno Capela" <[email protected]>

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