Hi all
We run windows2003 HVM on xen4.0.1, The VM
is 2048MB, 2 VCPU
the Guest OS not setup PV Driver
run command "xenpaging domID
260000" and want to paging 1024MB in xen.
It causes two different crashes.
1) the first one
the xm dmesg context is follow
(XEN) vmx.c:2150:d6 EPT violation 0x1
(r--/---), gpa 0x0000007fbba020, mfn 0xffffffffff, type 10.
(XEN) p2m-ept.c:533:d6 Walking EPT tables
for domain 6 gfn 7fbba
(XEN) p2m-ept.c:552:d6 epte 435b38007
(XEN) p2m-ept.c:552:d6 epte 4395b3007
(XEN) p2m-ept.c:552:d6 epte 433f7f007
(XEN) p2m-ept.c:552:d6 epte
ffffffffffa00
(XEN) domain_crash called from vmx.c:2160
(XEN) Domain 6 (vcpu#1) crashed on cpu#14:
(XEN) ----[ Xen-4.0.1 x86_64
debug=n Not tainted ]----
(XEN) CPU: 14
(XEN) RIP:
0008:[<000000008088dc37>]
(XEN) RFLAGS: 0000000000010246
CONTEXT: hvm guest
(XEN) rax: 000000007fbba020
rbx: 00000000f7727000 rcx: 0000000000000000
(XEN) rdx: 0000000080010031
rsi: 000000008996a418 rdi: 00000000f772a090
(XEN) rbp: 0000000089d88648
rsp: 00000000baf2ace0 r8: 0000000000000000
(XEN) r9:
0000000000000000 r10: 0000000000000000 r11:
0000000000000000
(XEN) r12: 0000000000000000
r13: 0000000000000000 r14: 0000000000000000
(XEN) r15: 0000000000000000
cr0: 000000008001003b cr4: 00000000000006f9
(XEN) cr3: 0000000000790000
cr2: 00000000c3cfb008
(XEN) ds: 0023 es:
0023 fs: 0030 gs: 0000 ss: 0010
cs: 0008
2) another crash is the qemu-dm
Segmentation fault , the "s" parameter is NULL
log is following :
Program terminated with signal 11,
Segmentation fault.
#0 0x00000000004451d2 in
ide_read_dma_cb (opaque=0xb79028, ret=0) at
/home/Lucifer/xen-4.0.1/tools/ioemu-dir/hw/ide.c:1232
1232
if (!s->bs) return; /* ouch! (see ide_flush_cb) */
(gdb) bt
#0 0x00000000004451d2 in
ide_read_dma_cb (opaque=0xb79028, ret=0) at
/home/Lucifer/xen-4.0.1/tools/ioemu-dir/hw/ide.c:1232
#1 0x000000000041745d in dma_bdrv_cb
(opaque=0xbbb1f0, ret=0) at /home/Lucifer/xen-4.0.1/tools/ioemu-dir/dma-helpers.c:97
#2 0x00000000004172f2 in
reschedule_dma (opaque=0xbbb1f0) at
/home/Lucifer/xen-4.0.1/tools/ioemu-dir/dma-helpers.c:63
#3 0x000000000040c48a in qemu_bh_poll
() at /home/Lucifer/xen-4.0.1/tools/ioemu-dir/vl.c:3427
#4 0x000000000040cfe2 in
main_loop_wait (timeout=10) at
/home/Lucifer/xen-4.0.1/tools/ioemu-dir/vl.c:3831
#5 0x00000000004c2daf in main_loop ()
at helper2.c:577
#6 0x000000000041056e in main
(argc=28, argv=0x7fff9eeee288, envp=0x7fff9eeee370) at /home/Lucifer/xen-4.0.1/tools/ioemu-dir/vl.c:6153
(gdb)
When the Guest OS have installed PVDriver.
only first crash
and we change VM to 1 VCPU, the Guest OS
cause BSD
the attachments are the BSD printscreens
Please help!
Thanks,
lin
