[Xen-bugs] [Bug 169] New: x86_64 - Unable to handle kernel paging request at ffff8000003e0000 RIP:

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<ffffffff8015d16c>{unmap_vmas+1084}
X-Bugzilla-Reason: AssignedTo

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=169

           Summary: x86_64 - Unable to handle kernel paging request at
                    ffff8000003e0000 RIP:
                    <ffffffff8015d16c>{unmap_vmas+1084}
           Product: Xen
           Version: unstable
          Platform: x86-64
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Unspecified
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: dbarrera@xxxxxxxxxx
                CC: hohnbaum@xxxxxxxxxx


This oops shows on dmesg on an x86_64 SLES 9 SP2 box. Dom0 and DomU both seem
unaffected by it, however. It seems somewhat similar in nature to Bugzilla #167,
but the trace is different.

There were no workloads running at the time the oops was produced.

Unable to handle kernel paging request at ffff8000003e0000 RIP:
<ffffffff8015d16c>{unmap_vmas+1084}
PGD 55555555067 BAD
Oops: 0000 [1]
CPU 0
Modules linked in: thermal processor fan button battery ac
Pid: 9830, comm: X Not tainted 2.6.12-xen0
RIP: e030:[<ffffffff8015d16c>] <ffffffff8015d16c>{unmap_vmas+1084}
RSP: e02b:ffff88000c45bdd8  EFLAGS: 00010206
RAX: 00000000000f8000 RBX: ffff880008ab7090 RCX: 00000000000f8000
RDX: 80000000f8000067 RSI: ffff800000000000 RDI: 03fffffffffff000
RBP: 00002aaaab612000 R08: 00002aaaab692000 R09: ffff88000c45bec8
R10: 0000000000000030 R11: ffffffffff577000 R12: ffff880017ee71f8
R13: 0000000000000000 R14: ffff880017eb4ad8 R15: 00002aaaab692000
FS:  00002aaaab35e4c0(0000) GS:ffffffff8058b300(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000
Process X (pid: 9830, threadinfo ffff88000c45a000, task ffff88000f74eb10)
Stack: 00002aaaab691fff 00002aaaab691fff 00002aaaab691fff 00002aaaab692000
       ffff880017762550 00002aaaab692000 ffff88000210e2a8 0000000000000000
       00002aaaab692000 ffffffff80541d00
Call Trace:<ffffffff80161083>{unmap_region+163} 
<ffffffff80161fa5>{do_munmap+389}
       <ffffffff80162088>{sys_munmap+72} <ffffffff80111f1d>{system_call+117}
       <ffffffff80111ea8>{system_call+0}

Code: 8b 14 86 48 8b 35 22 53 3f 00 48 39 f2 73 0f 48 8b 05 fe f4
RIP <ffffffff8015d16c>{unmap_vmas+1084} RSP <ffff88000c45bdd8>
CR2: ffff8000003e0000

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