[Xen-bugs] [Bug 775] New: guest system crashes while while scanning for viruses (uvscan)

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=775

           Summary: guest system crashes while while scanning for viruses
                    (uvscan)
           Product: Xen
           Version: 3.0.2
          Platform: x86-64
        OS/Version: Linux-2.6
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Guest-OS
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: quade@xxxxxxxxxxx


Kernel BUG at "arch/xen/x86_64/mm/hypervisor.c":192
invalid operand: 0000 [1] SMP
CPU 0
Modules linked in: nfsd exportfs ipt_MASQUERADE ipt_mark ipt_TCPMSS
iptable_mangle ipt_MARK ipt_state ipt_limit ipt_recent ipt_REJECT ipt_LOG
iptable_nat iptable_filter ip_conntrack_ftp ip_conntrack ip_tables ipv6
loop_fish2 parport_pc lp parport dm_mod reiserfs processor sata_nv libata
amd74xx sd_mod scsi_mod ide_disk ide_core
Pid: 30866, comm: uvscan Not tainted 2.6.13-15.12-xen
RIP: e030:[<ffffffff80122c57>] <ffffffff80122c57>{xen_pgd_pin+71}
RSP: e02b:ffff8800345e3df0  EFLAGS: 00010082
RAX: 00000000ffffffea RBX: ffff8800b8aaedc0 RCX: ffffffff80122c53
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8800345e3df0
RBP: ffff8800b8aaee30 R08: ffff880016a10000 R09: 0000000000000000
R10: 0000000000007ff0 R11: 0000000000000246 R12: ffff8800b8aaedc0
R13: ffff8800b8aae940 R14: ffff880001008d20 R15: 0000000000000000
FS:  00002aaaab1dfb00(0000) GS:ffffffff804e2980(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000
Process uvscan (pid: 30866, threadinfo ffff8800345e2000, task ffff8800530ab190)
Stack: ffff880000000003 0000000000112945 ffff8800b8aae940 ffff880001008d20
       0000000000000000 ffffffff80121b73 0000000000000000 0000000000000000
       ffff8800345e3f70 ffffffff803600c4
Call Trace:<ffffffff80121b73>{mm_pin+355} <ffffffff803600c4>{schedule+2964}
       <ffffffff8011704f>{do_softirq+79} <ffffffff80117489>{do_IRQ+57}
       <ffffffff8010deea>{evtchn_do_upcall+138}
<ffffffff80113269>{retint_careful+41}

Code: 0f 0b a3 98 f0 37 80 ff ff ff ff c2 c0 00 48 83 c4 28 c3 66
RIP <ffffffff80122c57>{xen_pgd_pin+71} RSP <ffff8800345e3df0>

host                   : Lab
release                : 2.6.16.21-0.21-xen
version                : #2 SMP Tue Sep 19 15:23:53 CEST 2006
machine                : x86_64
nr_cpus                : 2
nr_nodes               : 1
sockets_per_node       : 2
cores_per_socket       : 1
threads_per_core       : 1
cpu_mhz                : 2009
hw_caps                :
078bfbff:e3d3fbff:00000000:00000010:00000001:00000000:00000001
total_memory           : 4094
free_memory            : 5
max_free_memory        : 755
xen_major              : 3
xen_minor              : 0
xen_extra              : .2_09749-0.7
xen_caps               : xen-3.0-x86_64
platform_params        : virt_start=0xffff800000000000
xen_changeset          : 09749
cc_compiler            : gcc version 4.1.0 (SUSE Linux)
cc_compile_by          : abuild
cc_compile_domain      : suse.de
cc_compile_date        : Mon Jul 17 22:54:34 UTC 2006


The error can be reproduced when rescanning huge amounts of e-mails in imap
folders for viruses with uvscan (32 bit). The same error may occure when
starting the vmware-serverd process.
The system has two a amd opteron processors. Board is: Thunder K8SRE (S2891).


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