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[Xen-tools] gdbserver-xen crashes with --attach option


  • To: xen-tools@xxxxxxxxxxxxxxxxxxx
  • From: "Dharmadeep Muppalla" <dharmadeep@xxxxxxxxx>
  • Date: Tue, 7 Nov 2006 11:43:46 +0530
  • Delivery-date: Mon, 06 Nov 2006 22:13:59 -0800
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  • List-id: Xen control tools developers <xen-tools.lists.xensource.com>

Hi,

 I am using xen-3.0.2-2 version on a x86_64 machine. gdbserver-xen
crashes whenever I connect
to it using gdb. I am pasting the backtrace of gdbserver-xen below.
Please let me know if this is already fixed and patch is available.

Thanks,
dharmadeep

#0  0x00002b7b29382867 in map_domain_va (xc_handle=7, cpu=0,
  guest_va=0xffffffff80107000, perm=1) at xc_ptrace.c:384
#1  0x00002b7b29382d07 in xc_ptrace (xc_handle=7, request=PTRACE_PEEKTEXT,
  domid_tid=0, eaddr=-2146406400, edata=0) at xc_ptrace.c:484
#2  0x00000000004055e9 in linux_read_memory (memaddr=-2146406400,
  myaddr=0x7ffffff7f020 "h\002", len=Variable "len" is not available.
)
  at ../../../gdb-6.2.1/gdb/gdbserver/linux-xen-low.c:406
#3  0x000000000040437a in read_inferior_memory (memaddr=-2146406400,
  myaddr=0x7ffffff7f020 "h\002", len=1)
  at ../../../gdb-6.2.1/gdb/gdbserver/target.c:64
#4  0x0000000000403b84 in main (argc=4, argv=0x7ffffff7f8e8)
  at ../../../gdb-6.2.1/gdb/gdbserver/server.c:520

(gdb) p/x va
$5 = 0xffffffff80107000
(gdb) p nr_pages
$6 = 64256

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