[Xen-bugs] [Bug 880] New: running reiserfsck /dev/hda3 on JS20 drips soft lockup in runlevel 1

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=880

           Summary: running reiserfsck /dev/hda3 on JS20 drips soft lockup
                    in runlevel 1
           Product: Xen
           Version: unstable
          Platform: PPC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Guest-OS
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: ryanh@xxxxxxxxxx


switched to runlevel 1:

% init 1

ran reiserfsck /dev/hda3

and periodically I see:

BUG: soft lockup detected on CPU#0!
Call Trace:
[C00000000066F0B0] [C00000000000F864] .show_stack+0x54/0x1f0 (unreliable)
[C00000000066F160] [C00000000008CC78] .softlockup_tick+0xd8/0x160
[C00000000066F210] [C00000000006899C] .run_local_timers+0x1c/0x30
[C00000000066F290] [C000000000024284] .timer_interrupt+0x104/0x4f0
[C00000000066F3C0] [C0000000000034EC] decrementer_common+0xec/0x100
--- Exception: 901 at .handle_IRQ_event+0x40/0x100
    LR = .__do_IRQ+0x1d0/0x2b0
[C00000000066F6B0] [C00000000066F750] 0xc00000000066f750 (unreliable)
[C00000000066F750] [C00000000008D2F0] .__do_IRQ+0x1d0/0x2b0
[C00000000066F810] [C0000000002C5FBC] .evtchn_do_upcall+0x11c/0x170
[C00000000066F8D0] [C000000000044CE0] .xen_get_irq+0x10/0x30
[C00000000066F950] [C00000000000BF30] .do_IRQ+0x70/0x100
[C00000000066F9D0] [C0000000000041EC] hardware_interrupt_entry+0xc/0x10
--- Exception: 501 at .plpar_hcall_norets+0x10/0x1c
    LR = .HYPERVISOR_sched_op+0x124/0x150
[C00000000066FCC0] [C000000000570900] 0xc000000000570900 (unreliable)
[C00000000066FD70] [C000000000046ABC] .xen_power_save+0x7c/0xa0
[C00000000066FDF0] [C000000000012080] .cpu_idle+0xe0/0x150
[C00000000066FE70] [C000000000009174] .rest_init+0x44/0x60
[C00000000066FEF0] [C0000000004F9868] .start_kernel+0x288/0x2f0
[C00000000066FF90] [C0000000000084FC] .start_here_common+0x50/0x54


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