[Xen-ia64-devel] crash while initializing balloon driver

[Alex Williamson <alex.williamson@xxxxxx>]

   FYI, if you experience a crash like the one shown below, this is due
to changes in the domain builder now allowing dom0 memory to be sparsely
populated.  Isaku has already sent a patch for this to xen-devel and
we'll pull it into the xen-ia64-devel branch once its accepted.  In the
meantime, set your dom0_mem= boot option to a smaller value (1G will
probably work on most systems).  Thanks,

        Alex

xen_mem: Initialising balloon driver.
Bad page state in process 'swapper'
page:e00000010ecee848 flags:0x8000000000000080 mapping:0000000000000000 
mapcount:0 count:1
Trying to fix it up, but a reboot is needed
Backtrace:

Call Trace:
 [<a00000010001cf40>] show_stack+0x40/0xa0
                                sp=e00000011af27c40 bsp=e00000011af212a0
 [<a00000010001cfd0>] dump_stack+0x30/0x60
                                sp=e00000011af27e10 bsp=e00000011af21288
 [<a0000001000e5400>] bad_page+0xa0/0x120
                                sp=e00000011af27e10 bsp=e00000011af21268
Unable to handle kernel paging request at virtual address 0000000000200200
swapper[1]: Oops 11003706212352 [1]
Modules linked in:

Pid: 1, CPU 0, comm:              swapper
psr : 00000210085a2010 ifs : 8000000000000815 ip  : [<a0000001000e7b61>]    Not 
tainted
ip is at get_page_from_freelist+0x3c1/0xae0
unat: 0000000000000000 pfs : 8000000000000815 rsc : 000000000000000b
rnat: 0000000000000000 bsps: 0000000000000000 pr  : 0000000000006681
ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c8a70433f
csd : 0000000000000000 ssd : 0000000000000000
b0  : a0000001000e78b0 b6  : a00000010004b680 b7  : a000000100014750
f6  : 1003e8348d37270c2ca06 f7  : 1003e9e3779b97f4a7c16
f8  : 1003e0a0000001000e7e9 f9  : 100038000000000000000
f10 : 0fffafffffffff0000000 f11 : 1003e0000000000000000
r1  : a00000010103eb60 r2  : 0000000000000000 r3  : 0000000000000000
r8  : 0000000000000001 r9  : a000000100df7210 r10 : 0000000000000002
r11 : e00000010ecee878 r12 : e00000011af274b0 r13 : e00000011af20000
r14 : 0000000000000001 r15 : fffffffffff00001 r16 : 0000000000000001
r17 : 0000000000200200 r18 : 0000000000100108 r19 : 0000000000200200
r20 : e00000010ecee870 r21 : 0000000000100100 r22 : 0000000000100100
r23 : a000000100df7290 r24 : e00000011af20f14 r25 : a000000100e654a8
r26 : a000000100e654a8 r27 : 0000000000000080 r28 : 0000000000000000
r29 : 0000000000000000 r30 : 0000000000000000 r31 : 0000000000000000

Call Trace:
 [<a00000010001cf40>] show_stack+0x40/0xa0
                                sp=e00000011af27040 bsp=e00000011af216e8

-- 
Alex Williamson                             HP Open Source & Linux Org.


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