Re: [Xen-ia64-devel] [Patch] fix warnings while rebooting

[Alex Williamson <alex.williamson@xxxxxx>]

Hi Akio,

   Unfortunately I've found a problem with this patch since committing
it.  My system has a 2 port e1000 card that shows up as PCI devices
0000:01:02.0 and 0000:01:02.1.  I hide function 1 from dom0 using
pciback.hide=(0000:01:02.1).  Without trying to start up any guest
domains, on reboot dom0 dies with the NaT consumption fault shown below.
I've disabled the Xen call to free_irq_vector() until we can figure out
what's going wrong.  Thanks,

        Alex

Will now restart.
reboot[2702]: NaT consumption 17179869216 [1]
Modules linked in:

Pid: 2702, CPU 0, comm:               reboot
psr : 00000010085a6010 ifs : 8000000000000309 ip  : [<a0000001000ac9b0>]    Not 
tainted
ip is at notifier_call_chain+0x30/0xc0
unat: 0000000000000000 pfs : 8000000000000207 rsc : 000000000000000b
rnat: f5e9cbd880000000 bsps: 000000000000ffe9 pr  : 000000000055a959
ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c0270033f
csd : 0000000000000000 ssd : 0000000000000000
b0  : a0000001000af4f0 b6  : a000000100017e20 b7  : a000000100017df0
f6  : 000000000000000000000 f7  : 000000000000000000000
f8  : 000000000000000000000 f9  : 000000000000000000000
f10 : 000000000000000000000 f11 : 000000000000000000000
r1  : a00000010104eac0 r2  : 8000000000000792 r3  : e00000007e770028
r8  : 0000000000000000 r9  : e00000007e7702b8 r10 : 0000000000000000
r11 : 0000000000000008 r12 : e00000007e777d30 r13 : e00000007e770000
r14 : 0000000045584543 r15 : 0000000100000000 r16 : 0000000000000000
r17 : 0000000001234567 r18 : 0000000000200000 r19 : 0000000000000008
r20 : 2000000000244200 r21 : 0009804c8a70033f r22 : e00000007e770f70
r23 : 60000fff7fffc0c8 r24 : 0000000000000000 r25 : 0000000000000000
r26 : c00000000000010a r27 : 0000000000000000 r28 : 4000000000002370
r29 : 00001213085a6010 r30 : 0000000000000000 r31 : a000000100c41e00

Call Trace:
 [<a00000010001cfc0>] show_stack+0x40/0xa0
                                sp=e00000007e777750 bsp=e00000007e7711c0
 [<a00000010001d8c0>] show_regs+0x840/0x880
                                sp=e00000007e777920 bsp=e00000007e771168
 [<a0000001000424e0>] die+0x1c0/0x3c0
                                sp=e00000007e777920 bsp=e00000007e771120
 [<a000000100042730>] die_if_kernel+0x50/0x80
                                sp=e00000007e777940 bsp=e00000007e7710f0
 [<a000000100043880>] ia64_fault+0x1120/0x1240
                                sp=e00000007e777940 bsp=e00000007e771098
 [<a000000100069860>] xen_leave_kernel+0x0/0x3b0
                                sp=e00000007e777b60 bsp=e00000007e771098
 [<a0000001000ac9b0>] notifier_call_chain+0x30/0xc0
                                sp=e00000007e777d30 bsp=e00000007e771050
 [<a0000001000af4f0>] kernel_restart_prepare+0x30/0x80
                                sp=e00000007e777d30 bsp=e00000007e771030
 [<a0000001000af560>] kernel_restart+0x20/0xe0
                                sp=e00000007e777d30 bsp=e00000007e771010
 [<a0000001000b2b50>] sys_reboot+0x3b0/0x480
                                sp=e00000007e777d30 bsp=e00000007e770f90
 [<a000000100013f20>] ia64_ret_from_syscall+0x0/0x40
                                sp=e00000007e777e30 bsp=e00000007e770f90
 [<a000000000010620>] __kernel_syscall_via_break+0x0/0x20
                                sp=e00000007e778000 bsp=e00000007e770f90
 /etc/rc6.d/S90reboot: line 17:  2702 Segmentation fault      reboot -d -f -i


-- 
Alex Williamson                             HP Open Source & Linux Org.


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