From mboxrd@z Thu Jan  1 00:00:00 1970
From: Don Slutz <dslutz@verizon.com>
Subject: Re: [PATCHv9 0/9] Xen: extend kexec hypercall for use
 with pv-ops kernels
Date: Thu, 31 Oct 2013 16:23:43 -0400
Message-ID: <5272BC4F.3080107@terremark.com>
References: <1381251310-29449-1-git-send-email-david.vrabel@citrix.com>	<20131018184031.GA12658@router-fw-old.local.net-space.pl>	<5261C0D0.4090606@cantab.net>	<20131021121940.GY3626@debian70-amd64.local.net-space.pl>	<52652469.2040703@citrix.com>	<20131021202032.GE3626@debian70-amd64.local.net-space.pl>	<52713A86.3050102@citrix.com>
	<52728C76.8040501@terremark.com> <5272A1C8.8070407@cantab.net>
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To: David Vrabel <dvrabel@cantab.net>
Cc: Keir Fraser <keir@xen.org>, Daniel Kiper <daniel.kiper@oracle.com>, Don Slutz <dslutz@verizon.com>, xen-devel@lists.xen.org, David Vrabel <david.vrabel@citrix.com>, Jan Beulich <jbeulich@suse.com>, Daniel Kiper <dkiper@net-space.pl>
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On 10/31/13 14:30, David Vrabel wrote:
> On 31/10/2013 16:59, Don Slutz wrote:
>> On 10/30/13 12:57, David Vrabel wrote:
[...]

>> Looks like heap corruption.  I'll look into this.
Here is the info that I have in case it helps:

    3737] WARNING: at arch/x86/xen/multicalls.c:129
    xen_mc_flush+0x1a7/0x1b0()
    [46610.043742] Hardware name: SM15000-XE
    [46610.043745] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack i2c_i801
    i2c_core coretemp iTCO_wdt iTCO_vendor_support microcode lpc_ich
    mfd_core crc32c_intel ghash_clmulni_intel e1000 sunrpc
    [46610.043804] Pid: 2129, comm: sshd Tainted: G B       
    3.8.11-100.fc17.x86_64 #1
    [46610.043810] Call Trace:
    [46610.043816]  [<ffffffff8105e685>] warn_slowpath_common+0x75/0xa0
    [46610.043824]  [<ffffffff8105e6ca>] warn_slowpath_null+0x1a/0x20
    [46610.043830]  [<ffffffff81004d47>] xen_mc_flush+0x1a7/0x1b0
    [46610.043837]  [<ffffffff81008c85>] __xen_pgd_pin+0xe5/0x260
    [46610.043844]  [<ffffffff81008e66>] xen_dup_mmap+0x26/0x40
    [46610.043850]  [<ffffffff8105c0ff>] dup_mm+0x44f/0x640
    [46610.043856]  [<ffffffff8105cd07>] copy_process.part.23+0x9d7/0x13e0
    [46610.043863]  [<ffffffff812970f6>] ? security_file_alloc+0x16/0x20
    [46610.043871]  [<ffffffff8119eb1c>] ? get_empty_filp+0x8c/0x190
    [46610.043877]  [<ffffffff8105d809>] do_fork+0xa9/0x350
    [46610.043884]  [<ffffffff811b933e>] ? __fd_install+0x2e/0x60
    [46610.043890]  [<ffffffff8105db36>] sys_clone+0x16/0x20
    [46610.043896]  [<ffffffff816587b9>] stub_clone+0x69/0x90
    [46610.043902]  [<ffffffff81658459>] ? system_call_fastpath+0x16/0x1b
    [46610.043908] ---[ end trace b3928f7451ca4cbd ]---
    (XEN) [2013-10-31 12:29:06] mm.c:765:d0 Bad L1 flags 400000
    (XEN) [2013-10-31 12:29:06] mm.c:1221:d0 Failure in alloc_l1_table:
    entry 248
    (XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while validating mfn
    669913 (pfn 882a8) for type 1000000000000000: caf=8000000000000003
    taf=1000000000000001
    (XEN) [2013-10-31 12:29:06] mm.c:906:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:29:06] mm.c:1297:d0 Failure in alloc_l2_table:
    entry 335
    (XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while validating mfn
    66b81c (pfn 8a39f) for type 2000000000000000: caf=8000000000000003
    taf=2000000000000001
    (XEN) [2013-10-31 12:29:06] mm.c:948:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:29:06] mm.c:1379:d0 Failure in alloc_l3_table:
    entry 504
    (XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while validating mfn
    66b0ea (pfn 89ad1) for type 3000000000000000: caf=8000000000000003
    taf=3000000000000001
    (XEN) [2013-10-31 12:29:06] mm.c:972:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:29:06] mm.c:1438:d0 Failure in alloc_l4_table:
    entry 255
    (XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while validating mfn
    66bb52 (pfn 8a469) for type 4000000000000000: caf=8000000000000003
    taf=4000000000000001
    (XEN) [2013-10-31 12:29:06] mm.c:2763:d0 Error while installing new
    baseptr 66bb52
    [46610.044162] ------------[ cut here ]------------
    [46610.044179] WARNING: at arch/x86/xen/multicalls.c:129
    xen_mc_flush+0x1a7/0x1b0()
    [46610.044188] Hardware name: SM15000-XE
    [46610.044193] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack i2c_i801
    i2c_core coretemp iTCO_wdt iTCO_vendor_support microcode lpc_ich
    mfd_core crc32c_intel ghash_clmulni_intel e1000 sunrpc
    [46610.044263] Pid: 0, comm: swapper/5 Tainted: G    B W   
    3.8.11-100.fc17.x86_64 #1
    [46610.044269] Call Trace:
    [46610.044272] ---[ end trace b3928f7451ca4cbe ]---
    (XEN) [2013-10-31 12:29:06] mm.c:765:d0 Bad L1 flags 400000
    (XEN) [2013-10-31 12:29:06] mm.c:1221:d0 Failure in alloc_l1_table:
    entry 248
    (XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while validating mfn
    669913 (pfn 882a8) for type 1000000000000000: caf=8000000000000003
    taf=1000000000000001
    (XEN) [2013-10-31 12:29:06] mm.c:906:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:29:06] mm.c:1297:d0 Failure in alloc_l2_table:
    entry 335
    (XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while validating mfn
    66b81c (pfn 8a39f) for type 2000000000000000: caf=8000000000000003
    taf=2000000000000001
    (XEN) [2013-10-31 12:29:06] mm.c:948:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:29:06] mm.c:1379:d0 Failure in alloc_l3_table:
    entry 504
    (XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while validating mfn
    66b0ea (pfn 89ad1) for type 3000000000000000: caf=8000000000000003
    taf=3000000000000001
    (XEN) [2013-10-31 12:29:06] mm.c:972:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:29:06] mm.c:1438:d0 Failure in alloc_l4_table:
    entry 255
    (XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while validating mfn
    66bb52 (pfn 8a469) for type 4000000000000000: caf=8000000000000003
    taf=4000000000000001
    (XEN) [2013-10-31 12:29:06] mm.c:2763:d0 Error while installing new
    baseptr 66bb52
    [46610.047984] ------------[ cut here ]------------
    [46610.047995] WARNING: at arch/x86/xen/multicalls.c:129
    xen_mc_flush+0x1a7/0x1b0()
    [46610.048001] Hardware name: SM15000-XE
    [46610.048004] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack i2c_i801
    i2c_core coretemp iTCO_wdt iTCO_vendor_support microcode lpc_ich
    mfd_core crc32c_intel ghash_clmulni_intel e1000 sunrpc
    [46610.048063] Pid: 0, comm: swapper/6 Tainted: G    B W   
    3.8.11-100.fc17.x86_64 #1
    [46610.048069] Call Trace:
    [46610.048072] ---[ end trace b3928f7451ca4cbf ]---
    [46611.322192] BUG: Bad page map in process sshd
    pte:b2f32206a28ec48d pmd:00000066
    [46611.322197] Hardware name: SM15000-XE
    [46611.322199] addr:00007ffe29ef7000 vm_flags:00100071
    anon_vma:ffff8800050e1840 mapping:ffff88000555fa00 index:c
    [46611.322204] vma->vm_ops->fault: filemap_fault+0x0/0x4a0
    [46611.322208] vma->vm_file->f_op->mmap: ext4_file_mmap+0x0/0x60
    [46611.322210] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack i2c_i801
    i2c_core coretemp iTCO_wdt iTCO_vendor_support microcode lpc_ich
    mfd_core crc32c_intel ghash_clmulni_intel e1000 sunrpc
    [46611.322240] Pid: 2129, comm: sshd Tainted: G    B W   
    3.8.11-100.fc17.x86_64 #1
    [46611.322242] Call Trace:
    [46611.322246]  [<ffffffff811599c7>] print_bad_pte+0x1e7/0x260
    [46611.322249]  [<ffffffff8115ae69>] vm_normal_page+0x79/0x80
    [46611.322252]  [<ffffffff8115c3d1>] copy_pte_range+0x1f1/0x4f0
    [46611.322256]  [<ffffffff8100b66e>] ? m2p_find_override+0xae/0xc0
    [46611.322259]  [<ffffffff8115e41c>] copy_page_range+0x2fc/0x4a0
    [46611.322263]  [<ffffffff8105bfe9>] dup_mm+0x339/0x640
    [46611.322266]  [<ffffffff8105cd07>] copy_process.part.23+0x9d7/0x13e0
    [46611.322270]  [<ffffffff812970f6>] ? security_file_alloc+0x16/0x20
    [46611.322273]  [<ffffffff8119eb1c>] ? get_empty_filp+0x8c/0x190
    [46611.322277]  [<ffffffff8105d809>] do_fork+0xa9/0x350
    [46611.322280]  [<ffffffff811b933e>] ? __fd_install+0x2e/0x60
    [46611.322283]  [<ffffffff8105db36>] sys_clone+0x16/0x20
    [46611.322286]  [<ffffffff816587b9>] stub_clone+0x69/0x90
    [46611.322289]  [<ffffffff81658459>] ? system_call_fastpath+0x16/0x1b
    [46611.322294] BUG: Bad page map in process sshd
    pte:ce27c72aa6fea78d pmd:00000066
    [46611.322297] Hardware name: SM15000-XE
    [46611.322299] addr:00007ffe29ef8000 vm_flags:00100073
    anon_vma:ffff8800050e1840 mapping:ffff88000555fa00 index:d
    [46611.322303] vma->vm_ops->fault: filemap_fault+0x0/0x4a0
    [46611.322306] vma->vm_file->f_op->mmap: ext4_file_mmap+0x0/0x60
    [46611.322308] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack i2c_i801
    i2c_core coretemp iTCO_wdt iTCO_vendor_support microcode lpc_ich
    mfd_core crc32c_intel ghash_clmulni_intel e1000 sunrpc
    [46611.322336] Pid: 2129, comm: sshd Tainted: G    B W   
    3.8.11-100.fc17.x86_64 #1
    [46611.322339] Call Trace:
    [46611.322341]  [<ffffffff811599c7>] print_bad_pte+0x1e7/0x260
    [46611.322344]  [<ffffffff8115ae59>] vm_normal_page+0x69/0x80
    [46611.322347]  [<ffffffff8115c3d1>] copy_pte_range+0x1f1/0x4f0
    [46611.322350]  [<ffffffff8100b66e>] ? m2p_find_override+0xae/0xc0
    [46611.322353]  [<ffffffff8115e41c>] copy_page_range+0x2fc/0x4a0
    [46611.322357]  [<ffffffff8105bfe9>] dup_mm+0x339/0x640
    [46611.322360]  [<ffffffff8105cd07>] copy_process.part.23+0x9d7/0x13e0
    [46611.322364]  [<ffffffff812970f6>] ? security_file_alloc+0x16/0x20
    [46611.322367]  [<ffffffff8119eb1c>] ? get_empty_filp+0x8c/0x190
    [46611.322370]  [<ffffffff8105d809>] do_fork+0xa9/0x350
    [46611.322374]  [<ffffffff811b933e>] ? __fd_install+0x2e/0x60
    [46611.322377]  [<ffffffff8105db36>] sys_clone+0x16/0x20
    [46611.322380]  [<ffffffff816587b9>] stub_clone+0x69/0x90
    [46611.322383]  [<ffffffff81658459>] ? system_call_fastpath+0x16/0x1b
    (XEN) [2013-10-31 12:29:07] mm.c:765:d0 Bad L1 flags 400000
    (XEN) [2013-10-31 12:29:07] mm.c:1221:d0 Failure in alloc_l1_table:
    entry 248
    (XEN) [2013-10-31 12:29:07] mm.c:2099:d0 Error while validating mfn
    669930 (pfn 8828b) for type 1000000000000000: caf=8000000000000003
    taf=1000000000000001
    (XEN) [2013-10-31 12:29:07] mm.c:2995:d0 Error while pinning mfn 669930
    (XEN) [2013-10-31 12:29:07] mm.c:765:d0 Bad L1 flags 400000
    (XEN) [2013-10-31 12:29:07] mm.c:1221:d0 Failure in alloc_l1_table:
    entry 248
    (XEN) [2013-10-31 12:29:07] mm.c:2099:d0 Error while validating mfn
    669930 (pfn 8828b) for type 1000000000000000: caf=8000000000000003
    taf=1000000000000001
    (XEN) [2013-10-31 12:29:07] mm.c:906:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-1
    [root@dcs-xen-51 ~]# reboot
    (XEN) [2013-10-31 12:30:12] mm.c:765:d0 Bad L1 flags 400000
    (XEN) [2013-10-31 12:30:12] mm.c:1221:d0 Failure in alloc_l1_table:
    entry 248
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    669930 (pfn 8828b) for type 1000000000000000: caf=8000000000000003
    taf=1000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:906:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:30:12] mm.c:1297:d0 Failure in alloc_l2_table:
    entry 335
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    83e7af (pfn 52af) for type 2000000000000000: caf=8000000000000003
    taf=2000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:948:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:30:12] mm.c:1379:d0 Failure in alloc_l3_table:
    entry 504
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    83f1df (pfn 5cdf) for type 3000000000000000: caf=8000000000000003
    taf=3000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:972:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:30:12] mm.c:1438:d0 Failure in alloc_l4_table:
    entry 255
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    66ac55 (pfn 89766) for type 4000000000000000: caf=8000000000000003
    taf=4000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:2763:d0 Error while installing new
    baseptr 66ac55
    [46676.389678] ------------[ cut here ]------------
    [46676.389692] WARNING: at arch/x86/xen/multicalls.c:129
    xen_mc_flush+0x1a7/0x1b0()
    [46676.389697] Hardware name: SM15000-XE
    [46676.389703] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack i2c_i801
    i2c_core coretemp iTCO_wdt iTCO_vendor_support microcode lpc_ich
    mfd_core crc32c_intel ghash_clmulni_intel e1000 sunrpc
    [46676.389767] Pid: 689, comm: rsyslogd Tainted: G    B W   
    3.8.11-100.fc17.x86_64 #1
    [46676.389775] Call Trace:
    [46676.389779] ---[ end trace b3928f7451ca4cc2 ]---
    (XEN) [2013-10-31 12:30:12] mm.c:765:d0 Bad L1 flags 400000
    (XEN) [2013-10-31 12:30:12] mm.c:1221:d0 Failure in alloc_l1_table:
    entry 248
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    669930 (pfn 8828b) for type 1000000000000000: caf=8000000000000003
    taf=1000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:906:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:30:12] mm.c:1297:d0 Failure in alloc_l2_table:
    entry 335
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    83e7af (pfn 52af) for type 2000000000000000: caf=8000000000000003
    taf=2000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:948:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:30:12] mm.c:1379:d0 Failure in alloc_l3_table:
    entry 504
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    83f1df (pfn 5cdf) for type 3000000000000000: caf=8000000000000003
    taf=3000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:972:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:30:12] mm.c:1438:d0 Failure in alloc_l4_table:
    entry 255
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    66ac55 (pfn 89766) for type 4000000000000000: caf=8000000000000003
    taf=4000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:2763:d0 Error while installing new
    baseptr 66ac55
    [46676.390686] ------------[ cut here ]------------
    [46676.390698] WARNING: at arch/x86/xen/multicalls.c:129
    xen_mc_flush+0x1a7/0x1b0()
    [46676.390704] Hardware name: SM15000-XE
    [46676.390709] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack i2c_i801
    i2c_core coretemp iTCO_wdt iTCO_vendor_support microcode lpc_ich
    mfd_core crc32c_intel ghash_clmulni_intel e1000 sunrpc
    [46676.390796] Pid: 722, comm: mcelog Tainted: G    B W   
    3.8.11-100.fc17.x86_64 #1
    [46676.390801] Call Trace:
    [46676.390805] ---[ end trace b3928f7451ca4cc3 ]---
    (XEN) [2013-10-31 12:30:12] mm.c:765:d0 Bad L1 flags 400000
    (XEN) [2013-10-31 12:30:12] mm.c:1221:d0 Failure in alloc_l1_table:
    entry 248
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    669913 (pfn 882a8) for type 1000000000000000: caf=8000000000000003
    taf=1000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:906:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:30:12] mm.c:1297:d0 Failure in alloc_l2_table:
    entry 335
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    66b81c (pfn 8a39f) for type 2000000000000000: caf=8000000000000003
    taf=2000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:948:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:30:12] mm.c:1379:d0 Failure in alloc_l3_table:
    entry 504
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    66b0ea (pfn 89ad1) for type 3000000000000000: caf=8000000000000003
    taf=3000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:972:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:30:12] mm.c:1438:d0 Failure in alloc_l4_table:
    entry 255
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    66bb52 (pfn 8a469) for type 4000000000000000: caf=8000000000000003
    taf=4000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:2763:d0 Error while installing new
    baseptr 66bb52
    [46676.390897] ------------[ cut here ]------------
    [46676.390909] WARNING: at arch/x86/xen/multicalls.c:129
    xen_mc_flush+0x1a7/0x1b0()
    [46676.390916] Hardware name: SM15000-XE
    [46676.390919] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack i2c_i801
    i2c_core coretemp iTCO_wdt iTCO_vendor_support microcode lpc_ich
    mfd_core crc32c_intel ghash_clmulni_intel e1000 sunrpc
    [46676.390988] Pid: 714, comm: acpid Tainted: G    B W   
    3.8.11-100.fc17.x86_64 #1
    [46676.390996] Call Trace:
    [46676.391001] ---[ end trace b3928f7451ca4cc4 ]---
    (XEN) [2013-10-31 12:30:12] mm.c:765:d0 Bad L1 flags 400000
    (XEN) [2013-10-31 12:30:12] mm.c:1221:d0 Failure in alloc_l1_table:
    entry 248
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    669913 (pfn 882a8) for type 1000000000000000: caf=8000000000000003
    taf=1000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:906:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:30:12] mm.c:1297:d0 Failure in alloc_l2_table:
    entry 335
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    66b81c (pfn 8a39f) for type 2000000000000000: caf=8000000000000003
    taf=2000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:948:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:30:12] mm.c:1379:d0 Failure in alloc_l3_table:
    entry 504
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    66b0ea (pfn 89ad1) for type 3000000000000000: caf=8000000000000003
    taf=3000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:972:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:30:12] mm.c:1438:d0 Failure in alloc_l4_table:
    entry 255
    (XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while validating mfn
    66bb52 (pfn 8a469) for type 4000000000000000: caf=8000000000000003
    taf=4000000000000001
    (XEN) [2013-10-31 12:30:12] mm.c:2763:d0 Error while installing new
    baseptr 66bb52
    [46676.391842] ------------[ cut here ]------------
    [46676.391850] WARNING: at arch/x86/xen/multicalls.c:129
    xen_mc_flush+0x1a7/0x1b0()
    [46676.391855] Hardware name: SM15000-XE
    [46676.391858] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack i2c_i801
    i2c_core coretemp iTCO_wdt iTCO_vendor_support microcode lpc_ich
    mfd_core crc32c_intel ghash_clmulni_intel e1000 sunrpc
    [46676.391911] Pid: 713, comm: systemd-logind Tainted: G    B   W   
    3.8.11-100.fc17.x86_64 #1
    [46676.391916] Call Trace:
    [46676.391919] ---[ end trace b3928f7451ca4cc5 ]---
    xencommons[3118]: Stopping xenconsoled
    xencommons[3118]: Stopping QEMU
    xencommons[3118]: WARNING: Not stopping xenstored, as it cannot be
    restarted.
    (XEN) [2013-10-31 12:31:20] mm.c:765:d0 Bad L1 flags 400000
    (XEN) [2013-10-31 12:31:20] mm.c:1221:d0 Failure in alloc_l1_table:
    entry 248
    (XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while validating mfn
    669913 (pfn 882a8) for type 1000000000000000: caf=8000000000000003
    taf=1000000000000001
    (XEN) [2013-10-31 12:31:20] mm.c:906:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:31:20] mm.c:1297:d0 Failure in alloc_l2_table:
    entry 335
    (XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while validating mfn
    66b81c (pfn 8a39f) for type 2000000000000000: caf=8000000000000003
    taf=2000000000000001
    (XEN) [2013-10-31 12:31:20] mm.c:948:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:31:20] mm.c:1379:d0 Failure in alloc_l3_table:
    entry 504
    (XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while validating mfn
    66b0ea (pfn 89ad1) for type 3000000000000000: caf=8000000000000003
    taf=3000000000000001
    (XEN) [2013-10-31 12:31:20] mm.c:972:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:31:20] mm.c:1438:d0 Failure in alloc_l4_table:
    entry 255
    (XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while validating mfn
    66bb52 (pfn 8a469) for type 4000000000000000: caf=8000000000000003
    taf=4000000000000001
    (XEN) [2013-10-31 12:31:20] mm.c:2763:d0 Error while installing new
    baseptr 66bb52
    [46744.392509] ------------[ cut here ]------------
    [46744.392524] WARNING: at arch/x86/xen/multicalls.c:129
    xen_mc_flush+0x1a7/0x1b0()
    [46744.392530] Hardware name: SM15000-XE
    [46744.392534] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack i2c_i801
    i2c_core coretemp iTCO_wdt iTCO_vendor_support microcode lpc_ich
    mfd_core crc32c_intel ghash_clmulni_intel e1000 sunrpc
    [46744.392598] Pid: 2556, comm: sshd Tainted: G    B W   
    3.8.11-100.fc17.x86_64 #1
    [46744.392607] Call Trace:
    [46744.392614] ---[ end trace b3928f7451ca4cc6 ]---
    (XEN) [2013-10-31 12:31:20] mm.c:765:d0 Bad L1 flags 400000
    (XEN) [2013-10-31 12:31:20] mm.c:1221:d0 Failure in alloc_l1_table:
    entry 248
    (XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while validating mfn
    669913 (pfn 882a8) for type 1000000000000000: caf=8000000000000003
    taf=1000000000000001
    (XEN) [2013-10-31 12:31:20] mm.c:906:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:31:20] mm.c:1297:d0 Failure in alloc_l2_table:
    entry 335
    (XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while validating mfn
    66b81c (pfn 8a39f) for type 2000000000000000: caf=8000000000000003
    taf=2000000000000001
    (XEN) [2013-10-31 12:31:20] mm.c:948:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:31:20] mm.c:1379:d0 Failure in alloc_l3_table:
    entry 504
    (XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while validating mfn
    66b0ea (pfn 89ad1) for type 3000000000000000: caf=8000000000000003
    taf=3000000000000001
    (XEN) [2013-10-31 12:31:20] mm.c:972:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:31:20] mm.c:1438:d0 Failure in alloc_l4_table:
    entry 255
    (XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while validating mfn
    66bb52 (pfn 8a469) for type 4000000000000000: caf=8000000000000003
    taf=4000000000000001
    (XEN) [2013-10-31 12:31:20] mm.c:2763:d0 Error while installing new
    baseptr 66bb52
    [46744.393790] ------------[ cut here ]------------
    [46744.393799] WARNING: at arch/x86/xen/multicalls.c:129
    xen_mc_flush+0x1a7/0x1b0()
    [46744.393804] Hardware name: SM15000-XE
    [46744.393807] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack i2c_i801
    i2c_core coretemp iTCO_wdt iTCO_vendor_support microcode lpc_ich
    mfd_core crc32c_intel ghash_clmulni_intel e1000 sunrpc
    [46744.393862] Pid: 61, comm: kworker/6:1 Tainted: G B   W   
    3.8.11-100.fc17.x86_64 #1
    [46744.393868] Call Trace:
    [46744.393871] ---[ end trace b3928f7451ca4cc7 ]---
    (XEN) [2013-10-31 12:31:20] mm.c:765:d0 Bad L1 flags 400000
    (XEN) [2013-10-31 12:31:20] mm.c:1221:d0 Failure in alloc_l1_table:
    entry 248
    (XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while validating mfn
    669913 (pfn 882a8) for type 1000000000000000: caf=8000000000000003
    taf=1000000000000001
    (XEN) [2013-10-31 12:31:20] mm.c:906:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:31:20] mm.c:1297:d0 Failure in alloc_l2_table:
    entry 335
    (XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while validating mfn
    66b81c (pfn 8a39f) for type 2000000000000000: caf=8000000000000003
    taf=2000000000000001
    (XEN) [2013-10-31 12:31:20] mm.c:948:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:31:20] mm.c:1379:d0 Failure in alloc_l3_table:
    entry 504
    (XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while validating mfn
    66b0ea (pfn 89ad1) for type 3000000000000000: caf=8000000000000003
    taf=3000000000000001
    (XEN) [2013-10-31 12:31:20] mm.c:972:d0 Attempt to create linear
    p.t. with write perms
    (XEN) [2013-10-31 12:31:20] mm.c:1438:d0 Failure in alloc_l4_table:
    entry 255
    (XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while validating mfn
    66bb52 (pfn 8a469) for type 4000000000000000: caf=8000000000000003
    taf=4000000000000001
    (XEN) [2013-10-31 12:31:20] mm.c:2763:d0 Error while installing new
    baseptr 66bb52
    [46744.394165] ------------[ cut here ]------------
    [46744.394175] WARNING: at arch/x86/xen/multicalls.c:129
    xen_mc_flush+0x1a7/0x1b0()
    [46744.394182] Hardware name: SM15000-XE
    [46744.394185] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack i2c_i801
    i2c_core coretemp iTCO_wdt iTCO_vendor_support microcode lpc_ich
    mfd_core crc32c_intel ghash_clmulni_intel e1000 sunrpc
    [46744.394248] Pid: 2531, comm: kworker/0:2 Tainted: G B   W   
    3.8.11-100.fc17.x86_64 #1
    [46744.394253] Call Trace:
    [46744.394257] ---[ end trace b3928f7451ca4cc8 ]---
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    4400000000000001 != exp 7000000000000000) for mfn 66c1ff (pfn 8a9bc)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66c1ff
    (pfn 8a9bc) from L1 entry 800000066c1ff063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    3400000000000002 != exp 7000000000000000) for mfn 66d0cb (pfn 8baf0)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66d0cb
    (pfn 8baf0) from L1 entry 800000066d0cb063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    2400000000000001 != exp 7000000000000000) for mfn 66ca08 (pfn 8b5b3)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66ca08
    (pfn 8b5b3) from L1 entry 800000066ca08063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66bd69 (pfn 8a652)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66bd69
    (pfn 8a652) from L1 entry 800000066bd69063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66bd83 (pfn 8a638)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66bd83
    (pfn 8a638) from L1 entry 800000066bd83063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66cccc (pfn 8b6ef)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66cccc
    (pfn 8b6ef) from L1 entry 800000066cccc063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66d178 (pfn 8ba43)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66d178
    (pfn 8ba43) from L1 entry 800000066d178063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66ac0b (pfn 897b0)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66ac0b
    (pfn 897b0) from L1 entry 800000066ac0b063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66d0ce (pfn 8baed)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66d0ce
    (pfn 8baed) from L1 entry 800000066d0ce063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 83f402 (pfn 5f02)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 83f402
    (pfn 5f02) from L1 entry 800000083f402063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 6691b9 (pfn 87a02)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 6691b9
    (pfn 87a02) from L1 entry 80000006691b9063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66cd08 (pfn 8b6b3)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66cd08
    (pfn 8b6b3) from L1 entry 800000066cd08063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 83ef6c (pfn 5a6c)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 83ef6c
    (pfn 5a6c) from L1 entry 800000083ef6c063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66be24 (pfn 8a997)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66be24
    (pfn 8a997) from L1 entry 800000066be24063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66cdcb (pfn 8b5f0)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66cdcb
    (pfn 8b5f0) from L1 entry 800000066cdcb063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66caaa (pfn 8b511)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66caaa
    (pfn 8b511) from L1 entry 800000066caaa063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66cdc3 (pfn 8b5f8)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66cdc3
    (pfn 8b5f8) from L1 entry 800000066cdc3063 for l1e_owner=0, pg_owner=0
    [46744.438090] ------------[ cut here ]------------
    [46744.438100] WARNING: at arch/x86/xen/multicalls.c:129
    xen_mc_flush+0x1a7/0x1b0()
    [46744.438106] Hardware name: SM15000-XE
    [46744.438109] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack i2c_i801
    i2c_core coretemp iTCO_wdt iTCO_vendor_support microcode lpc_ich
    mfd_core crc32c_intel ghash_clmulni_intel e1000 sunrpc
    [46744.438170] Pid: 2596, comm: sshd Tainted: G    B W   
    3.8.11-100.fc17.x86_64 #1
    [46744.438176] Call Trace:
    [46744.438184]  [<ffffffff8105e685>] warn_slowpath_common+0x75/0xa0
    [46744.438194]  [<ffffffff8105e6ca>] warn_slowpath_null+0x1a/0x20
    [46744.438200]  [<ffffffff81004d47>] xen_mc_flush+0x1a7/0x1b0
    [46744.438206]  [<ffffffff81004e4f>] __xen_mc_entry+0xff/0x130
    [46744.438215]  [<ffffffff81006f22>] xen_extend_mmuext_op+0x82/0x110
    [46744.438222]  [<ffffffff8100700b>] xen_do_pin+0x5b/0x60
    [46744.438231]  [<ffffffff810080d8>] ? pte_mfn_to_pfn+0x78/0x110
    [46744.438239]  [<ffffffff81007156>] xen_unpin_page+0x146/0x170
    [46744.438248]  [<ffffffff8100818e>] ? xen_pmd_val+0xe/0x10
    [46744.438257]  [<ffffffff810050f9>] ?
    __raw_callee_save_xen_pmd_val+0x11/0x1e
    [46744.438266]  [<ffffffff8100591d>] __xen_pgd_walk+0x24d/0x260
    [46744.438275]  [<ffffffff81007010>] ? xen_do_pin+0x60/0x60
    [46744.438284]  [<ffffffff8100724d>] __xen_pgd_unpin+0xcd/0x190
    [46744.438290]  [<ffffffff81007407>] xen_exit_mmap+0xf7/0x150
    [46744.438300]  [<ffffffff811656e8>] exit_mmap+0x48/0x170
    [46744.438311]  [<ffffffff810bc5aa>] ? exit_robust_list+0x8a/0x160
    [46744.438318]  [<ffffffff810de7a5>] ? __audit_free+0x1c5/0x230
    [46744.438325]  [<ffffffff8105b9d3>] mmput+0x83/0xf0
    [46744.438331]  [<ffffffff8106410b>] do_exit+0x24b/0x9d0
    [46744.438338]  [<ffffffff8119e9ae>] ? ____fput+0xe/0x10
    [46744.438345]  [<ffffffff8107ec8c>] ? task_work_run+0xac/0xe0
    [46744.438351]  [<ffffffff8106491f>] do_group_exit+0x3f/0xa0
    [46744.438358]  [<ffffffff81064997>] sys_exit_group+0x17/0x20
    [46744.438368]  [<ffffffff81658459>] system_call_fastpath+0x16/0x1b
    [46744.438374] ---[ end trace b3928f7451ca4cc9 ]---
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66cdff (pfn 8b5bc)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66cdff
    (pfn 8b5bc) from L1 entry 800000066cdff063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66ac37 (pfn 89784)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66ac37
    (pfn 89784) from L1 entry 800000066ac37063 for l1e_owner=0, pg_owner=0
    (XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
    1400000000000001 != exp 7000000000000000) for mfn 66cdd5 (pfn 8b5e6)
    (XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get page type
    PGT_writable_page
    (XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn 66cdd5
    (pfn 8b5e6) from L1 entry 800000066cdd5063 for l1e_owner=0, pg_owner=0
    [46744.438603] ------------[ cut here ]------------
    [46744.438615] WARNING: at arch/x86/xen/multicalls.c:129
    xen_mc_flush+0x1a7/0x1b0()
    [46744.438621] Hardware name: SM15000-XE
    [46744.438623] Modules linked in: xen_acpi_processor xen_pciback
    xen_netback xen_blkback xen_gntalloc xen_gntdev xen_evtchn xenfs
    xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss nfs dns_resolver
    fscache lockd 8021q garp bridge stp llc ip6t_REJECT
    nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables
    nf_conntrack_ipv4 nf_defrag(XEN) [2013-10-31 12:31:47] ----[
    Xen-4.4-unstable  x86_64  debug=y  Not tainted ]----
    (XEN) [2013-10-31 12:31:47] CPU:    1
    (XEN) [2013-10-31 12:31:47] RIP: e008:[<ffff82d080173f3d>]
    __put_page_type+0xdd/0x24e
    (XEN) [2013-10-31 12:31:47] RFLAGS: 0000000000010246 CONTEXT: hypervisor
    (XEN) [2013-10-31 12:31:47] rax: 0000000000000000   rbx:
    1c00000000000001   rcx: 000000000083f45c
    (XEN) [2013-10-31 12:31:47] rdx: 0000000000000000   rsi:
    0000000000000074   rdi: 0000000000000000
    (XEN) [2013-10-31 12:31:47] rbp: ffff83083a177a98   rsp:
    ffff83083a177a58   r8:  ffff8141002003b8
    (XEN) [2013-10-31 12:31:47] r9:  0000000000000077   r10:
    0000000000000200   r11: 0000000000000212
    (XEN) [2013-10-31 12:31:47] r12: ffff82e0107e8b80   r13:
    0000000000000000   r14: 007fffffffffffff
    (XEN) [2013-10-31 12:31:47] r15: 0000000000000000   cr0:
    0000000080050033   cr4: 00000000000426f0
    (XEN) [2013-10-31 12:31:47] cr3: 000000081dc0c000   cr2:
    00000000000009da
    (XEN) [2013-10-31 12:31:47] ds: 0000   es: 0000   fs: 0000   gs:
    0000   ss: e010   cs: e008
    (XEN) [2013-10-31 12:31:47] Xen stack trace from rsp=ffff83083a177a58:
    (XEN) [2013-10-31 12:31:47]    0000000000000097 1c00000000000001
    ffff82d080128626 ffff82e0107e8b80
    (XEN) [2013-10-31 12:31:47]    000000000000014f ffff830823fb1000
    0000000000000001 ffff820040075000
    (XEN) [2013-10-31 12:31:47]    ffff83083a177aa8 ffff82d0801743ad
    ffff83083a177ac8 ffff82d0801759cd
    (XEN) [2013-10-31 12:31:47]    0000000000000001 ffff82e0107ccd40
    ffff83083a177b28 ffff82d080173a91
    (XEN) [2013-10-31 12:31:47]    ffff83083a177ef8 ffff83083a170000
    ffff830800000000 000000000083e66a
    (XEN) [2013-10-31 12:31:47]    0000000000000206 2400000000000001
    ffff82e0107ccd40 ffff83083a170000
    (XEN) [2013-10-31 12:31:47]    007fffffffffffff 0000000000000001
    ffff83083a177b78 ffff82d080173f15
    (XEN) [2013-10-31 12:31:47]    ffff82d080287f4c 2400000000000001
    0000000000000002 000000000083e66a
    (XEN) [2013-10-31 12:31:47]    ffff82e0107ccd40 0000000000000001
    0000000000000000 ffff820040071fc0
    (XEN) [2013-10-31 12:31:47]    ffff83083a177b88 ffff82d0801740bc
    ffff83083a177bb8 ffff82d080173773
    (XEN) [2013-10-31 12:31:47]    ffff82e00cd7b8c0 00000000000001f8
    0000000000000001 0000000000000000
    (XEN) [2013-10-31 12:31:47]    ffff83083a177c18 ffff82d080173bf8
    0000000000000001 ffff830823fb1000
    (XEN) [2013-10-31 12:31:47]    ffff820040071000 000000000066bdc6
    ffff83083a177c48 3400000000000001
    (XEN) [2013-10-31 12:31:47]    ffff82e00cd7b8c0 ffff83083a170000
    007fffffffffffff 0000000000000001
    (XEN) [2013-10-31 12:31:47]    ffff83083a177c68 ffff82d080173f15
    0000000000000087 3400000000000001
    (XEN) [2013-10-31 12:31:47]    ffff82d080128626 ffff82e0107cf4c0
    ffff82e00cd7b8c0 0000000000000001
    (XEN) [2013-10-31 12:31:47]    0000000000000000 ffff830823fb1000
    ffff83083a177c78 ffff82d0801740bc
    (XEN) [2013-10-31 12:31:47]    ffff83083a177c98 ffff82d08017437c
    ffff82e0107cf4c0 00000000000000ff
    (XEN) [2013-10-31 12:31:47]    ffff83083a177cf8 ffff82d080173d60
    ffff83083a161ee0 0000000000000286
    (XEN) [2013-10-31 12:31:47]    ffff82004006f000 000000000083e7a6
    0000000000000000 4400000000000001
    (XEN) [2013-10-31 12:31:47] Xen call trace:
    (XEN) [2013-10-31 12:31:47]    [<ffff82d080173f3d>]
    __put_page_type+0xdd/0x24e
    (XEN) [2013-10-31 12:31:47]    [<ffff82d0801743ad>]
    put_page_type+0xe/0x16
    (XEN) [2013-10-31 12:31:47]    [<ffff82d0801759cd>]
    put_page_from_l2e+0x187/0x1a2
    (XEN) [2013-10-31 12:31:47]    [<ffff82d080173a91>]
    free_page_type+0x2ee/0x6bd
    (XEN) [2013-10-31 12:31:47]    [<ffff82d080173f15>]
    __put_page_type+0xb5/0x24e
    (XEN) [2013-10-31 12:31:47]    [<ffff82d0801740bc>]
    put_page_type_preemptible+0xe/0x10
    (XEN) [2013-10-31 12:31:47]    [<ffff82d080173773>]
    put_page_from_l3e+0x144/0x174
    (XEN) [2013-10-31 12:31:47]    [<ffff82d080173bf8>]
    free_page_type+0x455/0x6bd
    (XEN) [2013-10-31 12:31:47]    [<ffff82d080173f15>]
    __put_page_type+0xb5/0x24e
    (XEN) [2013-10-31 12:31:47]    [<ffff82d0801740bc>]
    put_page_type_preemptible+0xe/0x10
    (XEN) [2013-10-31 12:31:47]    [<ffff82d08017437c>]
    put_page_from_l4e+0x98/0xbb
    (XEN) [2013-10-31 12:31:47]    [<ffff82d080173d60>]
    free_page_type+0x5bd/0x6bd
    (XEN) [2013-10-31 12:31:47]    [<ffff82d080173f15>]
    __put_page_type+0xb5/0x24e
    (XEN) [2013-10-31 12:31:47]    [<ffff82d0801740bc>]
    put_page_type_preemptible+0x

   -Don Slutz


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    <div class="moz-cite-prefix">On 10/31/13 14:30, David Vrabel wrote:<br>
    </div>
    <blockquote cite="mid:5272A1C8.8070407@cantab.net" type="cite">
      <pre wrap="">On 31/10/2013 16:59, Don Slutz wrote:
</pre>
      <blockquote type="cite">
        <pre wrap="">On 10/30/13 12:57, David Vrabel wrote:</pre>
      </blockquote>
    </blockquote>
    [...]<br>
    <br>
    <blockquote cite="mid:5272A1C8.8070407@cantab.net" type="cite">
      <blockquote type="cite">
        <pre wrap="">
Looks like heap corruption.  I'll look into this.
</pre>
      </blockquote>
    </blockquote>
    Here is the info that I have in case it helps:<br>
    <blockquote><tt>3737] WARNING: at arch/x86/xen/multicalls.c:129
        xen_mc_flush+0x1a7/0x1b0()</tt><tt><br>
      </tt><tt>[46610.043742] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46610.043745] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
        nf_conntrack i2c_i801 i2c_core coretemp iTCO_wdt
        iTCO_vendor_support microcode lpc_ich mfd_core crc32c_intel
        ghash_clmulni_intel e1000 sunrpc</tt><tt><br>
      </tt><tt>[46610.043804] Pid: 2129, comm: sshd Tainted: G&nbsp;&nbsp;&nbsp;
        B&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3.8.11-100.fc17.x86_64 #1</tt><tt><br>
      </tt><tt>[46610.043810] Call Trace:</tt><tt><br>
      </tt><tt>[46610.043816]&nbsp; [&lt;ffffffff8105e685&gt;]
        warn_slowpath_common+0x75/0xa0</tt><tt><br>
      </tt><tt>[46610.043824]&nbsp; [&lt;ffffffff8105e6ca&gt;]
        warn_slowpath_null+0x1a/0x20</tt><tt><br>
      </tt><tt>[46610.043830]&nbsp; [&lt;ffffffff81004d47&gt;]
        xen_mc_flush+0x1a7/0x1b0</tt><tt><br>
      </tt><tt>[46610.043837]&nbsp; [&lt;ffffffff81008c85&gt;]
        __xen_pgd_pin+0xe5/0x260</tt><tt><br>
      </tt><tt>[46610.043844]&nbsp; [&lt;ffffffff81008e66&gt;]
        xen_dup_mmap+0x26/0x40</tt><tt><br>
      </tt><tt>[46610.043850]&nbsp; [&lt;ffffffff8105c0ff&gt;]
        dup_mm+0x44f/0x640</tt><tt><br>
      </tt><tt>[46610.043856]&nbsp; [&lt;ffffffff8105cd07&gt;]
        copy_process.part.23+0x9d7/0x13e0</tt><tt><br>
      </tt><tt>[46610.043863]&nbsp; [&lt;ffffffff812970f6&gt;] ?
        security_file_alloc+0x16/0x20</tt><tt><br>
      </tt><tt>[46610.043871]&nbsp; [&lt;ffffffff8119eb1c&gt;] ?
        get_empty_filp+0x8c/0x190</tt><tt><br>
      </tt><tt>[46610.043877]&nbsp; [&lt;ffffffff8105d809&gt;]
        do_fork+0xa9/0x350</tt><tt><br>
      </tt><tt>[46610.043884]&nbsp; [&lt;ffffffff811b933e&gt;] ?
        __fd_install+0x2e/0x60</tt><tt><br>
      </tt><tt>[46610.043890]&nbsp; [&lt;ffffffff8105db36&gt;]
        sys_clone+0x16/0x20</tt><tt><br>
      </tt><tt>[46610.043896]&nbsp; [&lt;ffffffff816587b9&gt;]
        stub_clone+0x69/0x90</tt><tt><br>
      </tt><tt>[46610.043902]&nbsp; [&lt;ffffffff81658459&gt;] ?
        system_call_fastpath+0x16/0x1b</tt><tt><br>
      </tt><tt>[46610.043908] ---[ end trace b3928f7451ca4cbd ]---</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:765:d0 Bad L1 flags
        400000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:1221:d0 Failure in
        alloc_l1_table: entry 248</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while
        validating mfn 669913 (pfn 882a8) for type 1000000000000000:
        caf=8000000000000003 taf=1000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:906:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:1297:d0 Failure in
        alloc_l2_table: entry 335</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while
        validating mfn 66b81c (pfn 8a39f) for type 2000000000000000:
        caf=8000000000000003 taf=2000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:948:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:1379:d0 Failure in
        alloc_l3_table: entry 504</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while
        validating mfn 66b0ea (pfn 89ad1) for type 3000000000000000:
        caf=8000000000000003 taf=3000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:972:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:1438:d0 Failure in
        alloc_l4_table: entry 255</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while
        validating mfn 66bb52 (pfn 8a469) for type 4000000000000000:
        caf=8000000000000003 taf=4000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:2763:d0 Error while
        installing new baseptr 66bb52</tt><tt><br>
      </tt><tt>[46610.044162] ------------[ cut here ]------------</tt><tt><br>
      </tt><tt>[46610.044179] WARNING: at arch/x86/xen/multicalls.c:129
        xen_mc_flush+0x1a7/0x1b0()</tt><tt><br>
      </tt><tt>[46610.044188] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46610.044193] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
        nf_conntrack i2c_i801 i2c_core coretemp iTCO_wdt
        iTCO_vendor_support microcode lpc_ich mfd_core crc32c_intel
        ghash_clmulni_intel e1000 sunrpc</tt><tt><br>
      </tt><tt>[46610.044263] Pid: 0, comm: swapper/5 Tainted: G&nbsp;&nbsp;&nbsp; B&nbsp;&nbsp;
        W&nbsp;&nbsp;&nbsp; 3.8.11-100.fc17.x86_64 #1</tt><tt><br>
      </tt><tt>[46610.044269] Call Trace:</tt><tt><br>
      </tt><tt>[46610.044272] ---[ end trace b3928f7451ca4cbe ]---</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:765:d0 Bad L1 flags
        400000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:1221:d0 Failure in
        alloc_l1_table: entry 248</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while
        validating mfn 669913 (pfn 882a8) for type 1000000000000000:
        caf=8000000000000003 taf=1000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:906:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:1297:d0 Failure in
        alloc_l2_table: entry 335</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while
        validating mfn 66b81c (pfn 8a39f) for type 2000000000000000:
        caf=8000000000000003 taf=2000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:948:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:1379:d0 Failure in
        alloc_l3_table: entry 504</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while
        validating mfn 66b0ea (pfn 89ad1) for type 3000000000000000:
        caf=8000000000000003 taf=3000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:972:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:1438:d0 Failure in
        alloc_l4_table: entry 255</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:2099:d0 Error while
        validating mfn 66bb52 (pfn 8a469) for type 4000000000000000:
        caf=8000000000000003 taf=4000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:06] mm.c:2763:d0 Error while
        installing new baseptr 66bb52</tt><tt><br>
      </tt><tt>[46610.047984] ------------[ cut here ]------------</tt><tt><br>
      </tt><tt>[46610.047995] WARNING: at arch/x86/xen/multicalls.c:129
        xen_mc_flush+0x1a7/0x1b0()</tt><tt><br>
      </tt><tt>[46610.048001] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46610.048004] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
        nf_conntrack i2c_i801 i2c_core coretemp iTCO_wdt
        iTCO_vendor_support microcode lpc_ich mfd_core crc32c_intel
        ghash_clmulni_intel e1000 sunrpc</tt><tt><br>
      </tt><tt>[46610.048063] Pid: 0, comm: swapper/6 Tainted: G&nbsp;&nbsp;&nbsp; B&nbsp;&nbsp;
        W&nbsp;&nbsp;&nbsp; 3.8.11-100.fc17.x86_64 #1</tt><tt><br>
      </tt><tt>[46610.048069] Call Trace:</tt><tt><br>
      </tt><tt>[46610.048072] ---[ end trace b3928f7451ca4cbf ]---</tt><tt><br>
      </tt><tt>[46611.322192] BUG: Bad page map in process sshd&nbsp;
        pte:b2f32206a28ec48d pmd:00000066</tt><tt><br>
      </tt><tt>[46611.322197] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46611.322199] addr:00007ffe29ef7000 vm_flags:00100071
        anon_vma:ffff8800050e1840 mapping:ffff88000555fa00 index:c</tt><tt><br>
      </tt><tt>[46611.322204] vma-&gt;vm_ops-&gt;fault:
        filemap_fault+0x0/0x4a0</tt><tt><br>
      </tt><tt>[46611.322208] vma-&gt;vm_file-&gt;f_op-&gt;mmap:
        ext4_file_mmap+0x0/0x60</tt><tt><br>
      </tt><tt>[46611.322210] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
        nf_conntrack i2c_i801 i2c_core coretemp iTCO_wdt
        iTCO_vendor_support microcode lpc_ich mfd_core crc32c_intel
        ghash_clmulni_intel e1000 sunrpc</tt><tt><br>
      </tt><tt>[46611.322240] Pid: 2129, comm: sshd Tainted: G&nbsp;&nbsp;&nbsp; B&nbsp;&nbsp;
        W&nbsp;&nbsp;&nbsp; 3.8.11-100.fc17.x86_64 #1</tt><tt><br>
      </tt><tt>[46611.322242] Call Trace:</tt><tt><br>
      </tt><tt>[46611.322246]&nbsp; [&lt;ffffffff811599c7&gt;]
        print_bad_pte+0x1e7/0x260</tt><tt><br>
      </tt><tt>[46611.322249]&nbsp; [&lt;ffffffff8115ae69&gt;]
        vm_normal_page+0x79/0x80</tt><tt><br>
      </tt><tt>[46611.322252]&nbsp; [&lt;ffffffff8115c3d1&gt;]
        copy_pte_range+0x1f1/0x4f0</tt><tt><br>
      </tt><tt>[46611.322256]&nbsp; [&lt;ffffffff8100b66e&gt;] ?
        m2p_find_override+0xae/0xc0</tt><tt><br>
      </tt><tt>[46611.322259]&nbsp; [&lt;ffffffff8115e41c&gt;]
        copy_page_range+0x2fc/0x4a0</tt><tt><br>
      </tt><tt>[46611.322263]&nbsp; [&lt;ffffffff8105bfe9&gt;]
        dup_mm+0x339/0x640</tt><tt><br>
      </tt><tt>[46611.322266]&nbsp; [&lt;ffffffff8105cd07&gt;]
        copy_process.part.23+0x9d7/0x13e0</tt><tt><br>
      </tt><tt>[46611.322270]&nbsp; [&lt;ffffffff812970f6&gt;] ?
        security_file_alloc+0x16/0x20</tt><tt><br>
      </tt><tt>[46611.322273]&nbsp; [&lt;ffffffff8119eb1c&gt;] ?
        get_empty_filp+0x8c/0x190</tt><tt><br>
      </tt><tt>[46611.322277]&nbsp; [&lt;ffffffff8105d809&gt;]
        do_fork+0xa9/0x350</tt><tt><br>
      </tt><tt>[46611.322280]&nbsp; [&lt;ffffffff811b933e&gt;] ?
        __fd_install+0x2e/0x60</tt><tt><br>
      </tt><tt>[46611.322283]&nbsp; [&lt;ffffffff8105db36&gt;]
        sys_clone+0x16/0x20</tt><tt><br>
      </tt><tt>[46611.322286]&nbsp; [&lt;ffffffff816587b9&gt;]
        stub_clone+0x69/0x90</tt><tt><br>
      </tt><tt>[46611.322289]&nbsp; [&lt;ffffffff81658459&gt;] ?
        system_call_fastpath+0x16/0x1b</tt><tt><br>
      </tt><tt>[46611.322294] BUG: Bad page map in process sshd&nbsp;
        pte:ce27c72aa6fea78d pmd:00000066</tt><tt><br>
      </tt><tt>[46611.322297] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46611.322299] addr:00007ffe29ef8000 vm_flags:00100073
        anon_vma:ffff8800050e1840 mapping:ffff88000555fa00 index:d</tt><tt><br>
      </tt><tt>[46611.322303] vma-&gt;vm_ops-&gt;fault:
        filemap_fault+0x0/0x4a0</tt><tt><br>
      </tt><tt>[46611.322306] vma-&gt;vm_file-&gt;f_op-&gt;mmap:
        ext4_file_mmap+0x0/0x60</tt><tt><br>
      </tt><tt>[46611.322308] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
        nf_conntrack i2c_i801 i2c_core coretemp iTCO_wdt
        iTCO_vendor_support microcode lpc_ich mfd_core crc32c_intel
        ghash_clmulni_intel e1000 sunrpc</tt><tt><br>
      </tt><tt>[46611.322336] Pid: 2129, comm: sshd Tainted: G&nbsp;&nbsp;&nbsp; B&nbsp;&nbsp;
        W&nbsp;&nbsp;&nbsp; 3.8.11-100.fc17.x86_64 #1</tt><tt><br>
      </tt><tt>[46611.322339] Call Trace:</tt><tt><br>
      </tt><tt>[46611.322341]&nbsp; [&lt;ffffffff811599c7&gt;]
        print_bad_pte+0x1e7/0x260</tt><tt><br>
      </tt><tt>[46611.322344]&nbsp; [&lt;ffffffff8115ae59&gt;]
        vm_normal_page+0x69/0x80</tt><tt><br>
      </tt><tt>[46611.322347]&nbsp; [&lt;ffffffff8115c3d1&gt;]
        copy_pte_range+0x1f1/0x4f0</tt><tt><br>
      </tt><tt>[46611.322350]&nbsp; [&lt;ffffffff8100b66e&gt;] ?
        m2p_find_override+0xae/0xc0</tt><tt><br>
      </tt><tt>[46611.322353]&nbsp; [&lt;ffffffff8115e41c&gt;]
        copy_page_range+0x2fc/0x4a0</tt><tt><br>
      </tt><tt>[46611.322357]&nbsp; [&lt;ffffffff8105bfe9&gt;]
        dup_mm+0x339/0x640</tt><tt><br>
      </tt><tt>[46611.322360]&nbsp; [&lt;ffffffff8105cd07&gt;]
        copy_process.part.23+0x9d7/0x13e0</tt><tt><br>
      </tt><tt>[46611.322364]&nbsp; [&lt;ffffffff812970f6&gt;] ?
        security_file_alloc+0x16/0x20</tt><tt><br>
      </tt><tt>[46611.322367]&nbsp; [&lt;ffffffff8119eb1c&gt;] ?
        get_empty_filp+0x8c/0x190</tt><tt><br>
      </tt><tt>[46611.322370]&nbsp; [&lt;ffffffff8105d809&gt;]
        do_fork+0xa9/0x350</tt><tt><br>
      </tt><tt>[46611.322374]&nbsp; [&lt;ffffffff811b933e&gt;] ?
        __fd_install+0x2e/0x60</tt><tt><br>
      </tt><tt>[46611.322377]&nbsp; [&lt;ffffffff8105db36&gt;]
        sys_clone+0x16/0x20</tt><tt><br>
      </tt><tt>[46611.322380]&nbsp; [&lt;ffffffff816587b9&gt;]
        stub_clone+0x69/0x90</tt><tt><br>
      </tt><tt>[46611.322383]&nbsp; [&lt;ffffffff81658459&gt;] ?
        system_call_fastpath+0x16/0x1b</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:07] mm.c:765:d0 Bad L1 flags
        400000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:07] mm.c:1221:d0 Failure in
        alloc_l1_table: entry 248</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:07] mm.c:2099:d0 Error while
        validating mfn 669930 (pfn 8828b) for type 1000000000000000:
        caf=8000000000000003 taf=1000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:07] mm.c:2995:d0 Error while
        pinning mfn 669930</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:07] mm.c:765:d0 Bad L1 flags
        400000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:07] mm.c:1221:d0 Failure in
        alloc_l1_table: entry 248</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:07] mm.c:2099:d0 Error while
        validating mfn 669930 (pfn 8828b) for type 1000000000000000:
        caf=8000000000000003 taf=1000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:29:07] mm.c:906:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-1</tt><tt><br>
      </tt><tt>[root@dcs-xen-51 ~]# reboot</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:765:d0 Bad L1 flags
        400000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1221:d0 Failure in
        alloc_l1_table: entry 248</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 669930 (pfn 8828b) for type 1000000000000000:
        caf=8000000000000003 taf=1000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:906:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1297:d0 Failure in
        alloc_l2_table: entry 335</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 83e7af (pfn 52af) for type 2000000000000000:
        caf=8000000000000003 taf=2000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:948:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1379:d0 Failure in
        alloc_l3_table: entry 504</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 83f1df (pfn 5cdf) for type 3000000000000000:
        caf=8000000000000003 taf=3000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:972:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1438:d0 Failure in
        alloc_l4_table: entry 255</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 66ac55 (pfn 89766) for type 4000000000000000:
        caf=8000000000000003 taf=4000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2763:d0 Error while
        installing new baseptr 66ac55</tt><tt><br>
      </tt><tt>[46676.389678] ------------[ cut here ]------------</tt><tt><br>
      </tt><tt>[46676.389692] WARNING: at arch/x86/xen/multicalls.c:129
        xen_mc_flush+0x1a7/0x1b0()</tt><tt><br>
      </tt><tt>[46676.389697] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46676.389703] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
        nf_conntrack i2c_i801 i2c_core coretemp iTCO_wdt
        iTCO_vendor_support microcode lpc_ich mfd_core crc32c_intel
        ghash_clmulni_intel e1000 sunrpc</tt><tt><br>
      </tt><tt>[46676.389767] Pid: 689, comm: rsyslogd Tainted: G&nbsp;&nbsp;&nbsp; B&nbsp;&nbsp;
        W&nbsp;&nbsp;&nbsp; 3.8.11-100.fc17.x86_64 #1</tt><tt><br>
      </tt><tt>[46676.389775] Call Trace:</tt><tt><br>
      </tt><tt>[46676.389779] ---[ end trace b3928f7451ca4cc2 ]---</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:765:d0 Bad L1 flags
        400000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1221:d0 Failure in
        alloc_l1_table: entry 248</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 669930 (pfn 8828b) for type 1000000000000000:
        caf=8000000000000003 taf=1000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:906:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1297:d0 Failure in
        alloc_l2_table: entry 335</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 83e7af (pfn 52af) for type 2000000000000000:
        caf=8000000000000003 taf=2000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:948:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1379:d0 Failure in
        alloc_l3_table: entry 504</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 83f1df (pfn 5cdf) for type 3000000000000000:
        caf=8000000000000003 taf=3000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:972:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1438:d0 Failure in
        alloc_l4_table: entry 255</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 66ac55 (pfn 89766) for type 4000000000000000:
        caf=8000000000000003 taf=4000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2763:d0 Error while
        installing new baseptr 66ac55</tt><tt><br>
      </tt><tt>[46676.390686] ------------[ cut here ]------------</tt><tt><br>
      </tt><tt>[46676.390698] WARNING: at arch/x86/xen/multicalls.c:129
        xen_mc_flush+0x1a7/0x1b0()</tt><tt><br>
      </tt><tt>[46676.390704] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46676.390709] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
        nf_conntrack i2c_i801 i2c_core coretemp iTCO_wdt
        iTCO_vendor_support microcode lpc_ich mfd_core crc32c_intel
        ghash_clmulni_intel e1000 sunrpc</tt><tt><br>
      </tt><tt>[46676.390796] Pid: 722, comm: mcelog Tainted: G&nbsp;&nbsp;&nbsp; B&nbsp;&nbsp;
        W&nbsp;&nbsp;&nbsp; 3.8.11-100.fc17.x86_64 #1</tt><tt><br>
      </tt><tt>[46676.390801] Call Trace:</tt><tt><br>
      </tt><tt>[46676.390805] ---[ end trace b3928f7451ca4cc3 ]---</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:765:d0 Bad L1 flags
        400000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1221:d0 Failure in
        alloc_l1_table: entry 248</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 669913 (pfn 882a8) for type 1000000000000000:
        caf=8000000000000003 taf=1000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:906:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1297:d0 Failure in
        alloc_l2_table: entry 335</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 66b81c (pfn 8a39f) for type 2000000000000000:
        caf=8000000000000003 taf=2000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:948:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1379:d0 Failure in
        alloc_l3_table: entry 504</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 66b0ea (pfn 89ad1) for type 3000000000000000:
        caf=8000000000000003 taf=3000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:972:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1438:d0 Failure in
        alloc_l4_table: entry 255</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 66bb52 (pfn 8a469) for type 4000000000000000:
        caf=8000000000000003 taf=4000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2763:d0 Error while
        installing new baseptr 66bb52</tt><tt><br>
      </tt><tt>[46676.390897] ------------[ cut here ]------------</tt><tt><br>
      </tt><tt>[46676.390909] WARNING: at arch/x86/xen/multicalls.c:129
        xen_mc_flush+0x1a7/0x1b0()</tt><tt><br>
      </tt><tt>[46676.390916] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46676.390919] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
        nf_conntrack i2c_i801 i2c_core coretemp iTCO_wdt
        iTCO_vendor_support microcode lpc_ich mfd_core crc32c_intel
        ghash_clmulni_intel e1000 sunrpc</tt><tt><br>
      </tt><tt>[46676.390988] Pid: 714, comm: acpid Tainted: G&nbsp;&nbsp;&nbsp; B&nbsp;&nbsp;
        W&nbsp;&nbsp;&nbsp; 3.8.11-100.fc17.x86_64 #1</tt><tt><br>
      </tt><tt>[46676.390996] Call Trace:</tt><tt><br>
      </tt><tt>[46676.391001] ---[ end trace b3928f7451ca4cc4 ]---</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:765:d0 Bad L1 flags
        400000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1221:d0 Failure in
        alloc_l1_table: entry 248</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 669913 (pfn 882a8) for type 1000000000000000:
        caf=8000000000000003 taf=1000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:906:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1297:d0 Failure in
        alloc_l2_table: entry 335</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 66b81c (pfn 8a39f) for type 2000000000000000:
        caf=8000000000000003 taf=2000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:948:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1379:d0 Failure in
        alloc_l3_table: entry 504</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 66b0ea (pfn 89ad1) for type 3000000000000000:
        caf=8000000000000003 taf=3000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:972:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:1438:d0 Failure in
        alloc_l4_table: entry 255</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2099:d0 Error while
        validating mfn 66bb52 (pfn 8a469) for type 4000000000000000:
        caf=8000000000000003 taf=4000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:30:12] mm.c:2763:d0 Error while
        installing new baseptr 66bb52</tt><tt><br>
      </tt><tt>[46676.391842] ------------[ cut here ]------------</tt><tt><br>
      </tt><tt>[46676.391850] WARNING: at arch/x86/xen/multicalls.c:129
        xen_mc_flush+0x1a7/0x1b0()</tt><tt><br>
      </tt><tt>[46676.391855] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46676.391858] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
        nf_conntrack i2c_i801 i2c_core coretemp iTCO_wdt
        iTCO_vendor_support microcode lpc_ich mfd_core crc32c_intel
        ghash_clmulni_intel e1000 sunrpc</tt><tt><br>
      </tt><tt>[46676.391911] Pid: 713, comm: systemd-logind Tainted:
        G&nbsp;&nbsp;&nbsp; B&nbsp;&nbsp; W&nbsp;&nbsp;&nbsp; 3.8.11-100.fc17.x86_64 #1</tt><tt><br>
      </tt><tt>[46676.391916] Call Trace:</tt><tt><br>
      </tt><tt>[46676.391919] ---[ end trace b3928f7451ca4cc5 ]---</tt><tt><br>
      </tt><tt>xencommons[3118]: Stopping xenconsoled</tt><tt><br>
      </tt><tt>xencommons[3118]: Stopping QEMU</tt><tt><br>
      </tt><tt>xencommons[3118]: WARNING: Not stopping xenstored, as it
        cannot be restarted.</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:765:d0 Bad L1 flags
        400000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:1221:d0 Failure in
        alloc_l1_table: entry 248</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while
        validating mfn 669913 (pfn 882a8) for type 1000000000000000:
        caf=8000000000000003 taf=1000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:906:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:1297:d0 Failure in
        alloc_l2_table: entry 335</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while
        validating mfn 66b81c (pfn 8a39f) for type 2000000000000000:
        caf=8000000000000003 taf=2000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:948:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:1379:d0 Failure in
        alloc_l3_table: entry 504</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while
        validating mfn 66b0ea (pfn 89ad1) for type 3000000000000000:
        caf=8000000000000003 taf=3000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:972:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:1438:d0 Failure in
        alloc_l4_table: entry 255</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while
        validating mfn 66bb52 (pfn 8a469) for type 4000000000000000:
        caf=8000000000000003 taf=4000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2763:d0 Error while
        installing new baseptr 66bb52</tt><tt><br>
      </tt><tt>[46744.392509] ------------[ cut here ]------------</tt><tt><br>
      </tt><tt>[46744.392524] WARNING: at arch/x86/xen/multicalls.c:129
        xen_mc_flush+0x1a7/0x1b0()</tt><tt><br>
      </tt><tt>[46744.392530] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46744.392534] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
        nf_conntrack i2c_i801 i2c_core coretemp iTCO_wdt
        iTCO_vendor_support microcode lpc_ich mfd_core crc32c_intel
        ghash_clmulni_intel e1000 sunrpc</tt><tt><br>
      </tt><tt>[46744.392598] Pid: 2556, comm: sshd Tainted: G&nbsp;&nbsp;&nbsp; B&nbsp;&nbsp;
        W&nbsp;&nbsp;&nbsp; 3.8.11-100.fc17.x86_64 #1</tt><tt><br>
      </tt><tt>[46744.392607] Call Trace:</tt><tt><br>
      </tt><tt>[46744.392614] ---[ end trace b3928f7451ca4cc6 ]---</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:765:d0 Bad L1 flags
        400000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:1221:d0 Failure in
        alloc_l1_table: entry 248</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while
        validating mfn 669913 (pfn 882a8) for type 1000000000000000:
        caf=8000000000000003 taf=1000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:906:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:1297:d0 Failure in
        alloc_l2_table: entry 335</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while
        validating mfn 66b81c (pfn 8a39f) for type 2000000000000000:
        caf=8000000000000003 taf=2000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:948:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:1379:d0 Failure in
        alloc_l3_table: entry 504</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while
        validating mfn 66b0ea (pfn 89ad1) for type 3000000000000000:
        caf=8000000000000003 taf=3000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:972:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:1438:d0 Failure in
        alloc_l4_table: entry 255</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while
        validating mfn 66bb52 (pfn 8a469) for type 4000000000000000:
        caf=8000000000000003 taf=4000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2763:d0 Error while
        installing new baseptr 66bb52</tt><tt><br>
      </tt><tt>[46744.393790] ------------[ cut here ]------------</tt><tt><br>
      </tt><tt>[46744.393799] WARNING: at arch/x86/xen/multicalls.c:129
        xen_mc_flush+0x1a7/0x1b0()</tt><tt><br>
      </tt><tt>[46744.393804] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46744.393807] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
        nf_conntrack i2c_i801 i2c_core coretemp iTCO_wdt
        iTCO_vendor_support microcode lpc_ich mfd_core crc32c_intel
        ghash_clmulni_intel e1000 sunrpc</tt><tt><br>
      </tt><tt>[46744.393862] Pid: 61, comm: kworker/6:1 Tainted: G&nbsp;&nbsp;&nbsp;
        B&nbsp;&nbsp; W&nbsp;&nbsp;&nbsp; 3.8.11-100.fc17.x86_64 #1</tt><tt><br>
      </tt><tt>[46744.393868] Call Trace:</tt><tt><br>
      </tt><tt>[46744.393871] ---[ end trace b3928f7451ca4cc7 ]---</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:765:d0 Bad L1 flags
        400000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:1221:d0 Failure in
        alloc_l1_table: entry 248</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while
        validating mfn 669913 (pfn 882a8) for type 1000000000000000:
        caf=8000000000000003 taf=1000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:906:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:1297:d0 Failure in
        alloc_l2_table: entry 335</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while
        validating mfn 66b81c (pfn 8a39f) for type 2000000000000000:
        caf=8000000000000003 taf=2000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:948:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:1379:d0 Failure in
        alloc_l3_table: entry 504</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while
        validating mfn 66b0ea (pfn 89ad1) for type 3000000000000000:
        caf=8000000000000003 taf=3000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:972:d0 Attempt to create
        linear p.t. with write perms</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:1438:d0 Failure in
        alloc_l4_table: entry 255</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2099:d0 Error while
        validating mfn 66bb52 (pfn 8a469) for type 4000000000000000:
        caf=8000000000000003 taf=4000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2763:d0 Error while
        installing new baseptr 66bb52</tt><tt><br>
      </tt><tt>[46744.394165] ------------[ cut here ]------------</tt><tt><br>
      </tt><tt>[46744.394175] WARNING: at arch/x86/xen/multicalls.c:129
        xen_mc_flush+0x1a7/0x1b0()</tt><tt><br>
      </tt><tt>[46744.394182] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46744.394185] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
        nf_conntrack i2c_i801 i2c_core coretemp iTCO_wdt
        iTCO_vendor_support microcode lpc_ich mfd_core crc32c_intel
        ghash_clmulni_intel e1000 sunrpc</tt><tt><br>
      </tt><tt>[46744.394248] Pid: 2531, comm: kworker/0:2 Tainted: G&nbsp;&nbsp;&nbsp;
        B&nbsp;&nbsp; W&nbsp;&nbsp;&nbsp; 3.8.11-100.fc17.x86_64 #1</tt><tt><br>
      </tt><tt>[46744.394253] Call Trace:</tt><tt><br>
      </tt><tt>[46744.394257] ---[ end trace b3928f7451ca4cc8 ]---</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        4400000000000001 != exp 7000000000000000) for mfn 66c1ff (pfn
        8a9bc)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66c1ff (pfn 8a9bc) from L1 entry 800000066c1ff063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        3400000000000002 != exp 7000000000000000) for mfn 66d0cb (pfn
        8baf0)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66d0cb (pfn 8baf0) from L1 entry 800000066d0cb063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        2400000000000001 != exp 7000000000000000) for mfn 66ca08 (pfn
        8b5b3)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66ca08 (pfn 8b5b3) from L1 entry 800000066ca08063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66bd69 (pfn
        8a652)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66bd69 (pfn 8a652) from L1 entry 800000066bd69063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66bd83 (pfn
        8a638)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66bd83 (pfn 8a638) from L1 entry 800000066bd83063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66cccc (pfn
        8b6ef)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66cccc (pfn 8b6ef) from L1 entry 800000066cccc063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66d178 (pfn
        8ba43)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66d178 (pfn 8ba43) from L1 entry 800000066d178063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66ac0b (pfn
        897b0)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66ac0b (pfn 897b0) from L1 entry 800000066ac0b063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66d0ce (pfn
        8baed)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66d0ce (pfn 8baed) from L1 entry 800000066d0ce063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 83f402 (pfn
        5f02)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        83f402 (pfn 5f02) from L1 entry 800000083f402063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 6691b9 (pfn
        87a02)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        6691b9 (pfn 87a02) from L1 entry 80000006691b9063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66cd08 (pfn
        8b6b3)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66cd08 (pfn 8b6b3) from L1 entry 800000066cd08063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 83ef6c (pfn
        5a6c)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        83ef6c (pfn 5a6c) from L1 entry 800000083ef6c063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66be24 (pfn
        8a997)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66be24 (pfn 8a997) from L1 entry 800000066be24063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66cdcb (pfn
        8b5f0)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66cdcb (pfn 8b5f0) from L1 entry 800000066cdcb063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66caaa (pfn
        8b511)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66caaa (pfn 8b511) from L1 entry 800000066caaa063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66cdc3 (pfn
        8b5f8)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66cdc3 (pfn 8b5f8) from L1 entry 800000066cdc3063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>[46744.438090] ------------[ cut here ]------------</tt><tt><br>
      </tt><tt>[46744.438100] WARNING: at arch/x86/xen/multicalls.c:129
        xen_mc_flush+0x1a7/0x1b0()</tt><tt><br>
      </tt><tt>[46744.438106] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46744.438109] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
        nf_conntrack i2c_i801 i2c_core coretemp iTCO_wdt
        iTCO_vendor_support microcode lpc_ich mfd_core crc32c_intel
        ghash_clmulni_intel e1000 sunrpc</tt><tt><br>
      </tt><tt>[46744.438170] Pid: 2596, comm: sshd Tainted: G&nbsp;&nbsp;&nbsp; B&nbsp;&nbsp;
        W&nbsp;&nbsp;&nbsp; 3.8.11-100.fc17.x86_64 #1</tt><tt><br>
      </tt><tt>[46744.438176] Call Trace:</tt><tt><br>
      </tt><tt>[46744.438184]&nbsp; [&lt;ffffffff8105e685&gt;]
        warn_slowpath_common+0x75/0xa0</tt><tt><br>
      </tt><tt>[46744.438194]&nbsp; [&lt;ffffffff8105e6ca&gt;]
        warn_slowpath_null+0x1a/0x20</tt><tt><br>
      </tt><tt>[46744.438200]&nbsp; [&lt;ffffffff81004d47&gt;]
        xen_mc_flush+0x1a7/0x1b0</tt><tt><br>
      </tt><tt>[46744.438206]&nbsp; [&lt;ffffffff81004e4f&gt;]
        __xen_mc_entry+0xff/0x130</tt><tt><br>
      </tt><tt>[46744.438215]&nbsp; [&lt;ffffffff81006f22&gt;]
        xen_extend_mmuext_op+0x82/0x110</tt><tt><br>
      </tt><tt>[46744.438222]&nbsp; [&lt;ffffffff8100700b&gt;]
        xen_do_pin+0x5b/0x60</tt><tt><br>
      </tt><tt>[46744.438231]&nbsp; [&lt;ffffffff810080d8&gt;] ?
        pte_mfn_to_pfn+0x78/0x110</tt><tt><br>
      </tt><tt>[46744.438239]&nbsp; [&lt;ffffffff81007156&gt;]
        xen_unpin_page+0x146/0x170</tt><tt><br>
      </tt><tt>[46744.438248]&nbsp; [&lt;ffffffff8100818e&gt;] ?
        xen_pmd_val+0xe/0x10</tt><tt><br>
      </tt><tt>[46744.438257]&nbsp; [&lt;ffffffff810050f9&gt;] ?
        __raw_callee_save_xen_pmd_val+0x11/0x1e</tt><tt><br>
      </tt><tt>[46744.438266]&nbsp; [&lt;ffffffff8100591d&gt;]
        __xen_pgd_walk+0x24d/0x260</tt><tt><br>
      </tt><tt>[46744.438275]&nbsp; [&lt;ffffffff81007010&gt;] ?
        xen_do_pin+0x60/0x60</tt><tt><br>
      </tt><tt>[46744.438284]&nbsp; [&lt;ffffffff8100724d&gt;]
        __xen_pgd_unpin+0xcd/0x190</tt><tt><br>
      </tt><tt>[46744.438290]&nbsp; [&lt;ffffffff81007407&gt;]
        xen_exit_mmap+0xf7/0x150</tt><tt><br>
      </tt><tt>[46744.438300]&nbsp; [&lt;ffffffff811656e8&gt;]
        exit_mmap+0x48/0x170</tt><tt><br>
      </tt><tt>[46744.438311]&nbsp; [&lt;ffffffff810bc5aa&gt;] ?
        exit_robust_list+0x8a/0x160</tt><tt><br>
      </tt><tt>[46744.438318]&nbsp; [&lt;ffffffff810de7a5&gt;] ?
        __audit_free+0x1c5/0x230</tt><tt><br>
      </tt><tt>[46744.438325]&nbsp; [&lt;ffffffff8105b9d3&gt;]
        mmput+0x83/0xf0</tt><tt><br>
      </tt><tt>[46744.438331]&nbsp; [&lt;ffffffff8106410b&gt;]
        do_exit+0x24b/0x9d0</tt><tt><br>
      </tt><tt>[46744.438338]&nbsp; [&lt;ffffffff8119e9ae&gt;] ?
        ____fput+0xe/0x10</tt><tt><br>
      </tt><tt>[46744.438345]&nbsp; [&lt;ffffffff8107ec8c&gt;] ?
        task_work_run+0xac/0xe0</tt><tt><br>
      </tt><tt>[46744.438351]&nbsp; [&lt;ffffffff8106491f&gt;]
        do_group_exit+0x3f/0xa0</tt><tt><br>
      </tt><tt>[46744.438358]&nbsp; [&lt;ffffffff81064997&gt;]
        sys_exit_group+0x17/0x20</tt><tt><br>
      </tt><tt>[46744.438368]&nbsp; [&lt;ffffffff81658459&gt;]
        system_call_fastpath+0x16/0x1b</tt><tt><br>
      </tt><tt>[46744.438374] ---[ end trace b3928f7451ca4cc9 ]---</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66cdff (pfn
        8b5bc)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66cdff (pfn 8b5bc) from L1 entry 800000066cdff063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66ac37 (pfn
        89784)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66ac37 (pfn 89784) from L1 entry 800000066ac37063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:2352:d0 Bad type (saw
        1400000000000001 != exp 7000000000000000) for mfn 66cdd5 (pfn
        8b5e6)</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:846:d0 Could not get
        page type PGT_writable_page</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:20] mm.c:898:d0 Error getting mfn
        66cdd5 (pfn 8b5e6) from L1 entry 800000066cdd5063 for
        l1e_owner=0, pg_owner=0</tt><tt><br>
      </tt><tt>[46744.438603] ------------[ cut here ]------------</tt><tt><br>
      </tt><tt>[46744.438615] WARNING: at arch/x86/xen/multicalls.c:129
        xen_mc_flush+0x1a7/0x1b0()</tt><tt><br>
      </tt><tt>[46744.438621] Hardware name: SM15000-XE</tt><tt><br>
      </tt><tt>[46744.438623] Modules linked in: xen_acpi_processor
        xen_pciback xen_netback xen_blkback xen_gntalloc xen_gntdev
        xen_evtchn xenfs xen_privcmd nfsv3 nfs_acl tun nfsv4 auth_rpcgss
        nfs dns_resolver fscache lockd 8021q garp bridge stp llc
        ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter
        ip6_tables nf_conntrack_ipv4 nf_defrag(XEN) [2013-10-31
        12:31:47] ----[ Xen-4.4-unstable&nbsp; x86_64&nbsp; debug=y&nbsp; Not tainted
        ]----</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47] CPU:&nbsp;&nbsp;&nbsp; 1</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47] RIP:&nbsp;&nbsp;&nbsp;
        e008:[&lt;ffff82d080173f3d&gt;] __put_page_type+0xdd/0x24e</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47] RFLAGS: 0000000000010246&nbsp;&nbsp;
        CONTEXT: hypervisor</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47] rax: 0000000000000000&nbsp;&nbsp; rbx:
        1c00000000000001&nbsp;&nbsp; rcx: 000000000083f45c</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47] rdx: 0000000000000000&nbsp;&nbsp; rsi:
        0000000000000074&nbsp;&nbsp; rdi: 0000000000000000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47] rbp: ffff83083a177a98&nbsp;&nbsp; rsp:
        ffff83083a177a58&nbsp;&nbsp; r8:&nbsp; ffff8141002003b8</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47] r9:&nbsp; 0000000000000077&nbsp;&nbsp; r10:
        0000000000000200&nbsp;&nbsp; r11: 0000000000000212</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47] r12: ffff82e0107e8b80&nbsp;&nbsp; r13:
        0000000000000000&nbsp;&nbsp; r14: 007fffffffffffff</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47] r15: 0000000000000000&nbsp;&nbsp; cr0:
        0000000080050033&nbsp;&nbsp; cr4: 00000000000426f0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47] cr3: 000000081dc0c000&nbsp;&nbsp; cr2:
        00000000000009da</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47] ds: 0000&nbsp;&nbsp; es: 0000&nbsp;&nbsp; fs:
        0000&nbsp;&nbsp; gs: 0000&nbsp;&nbsp; ss: e010&nbsp;&nbsp; cs: e008</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47] Xen stack trace from
        rsp=ffff83083a177a58:</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; 0000000000000097
        1c00000000000001 ffff82d080128626 ffff82e0107e8b80</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; 000000000000014f
        ffff830823fb1000 0000000000000001 ffff820040075000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff83083a177aa8
        ffff82d0801743ad ffff83083a177ac8 ffff82d0801759cd</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; 0000000000000001
        ffff82e0107ccd40 ffff83083a177b28 ffff82d080173a91</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff83083a177ef8
        ffff83083a170000 ffff830800000000 000000000083e66a</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; 0000000000000206
        2400000000000001 ffff82e0107ccd40 ffff83083a170000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; 007fffffffffffff
        0000000000000001 ffff83083a177b78 ffff82d080173f15</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff82d080287f4c
        2400000000000001 0000000000000002 000000000083e66a</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff82e0107ccd40
        0000000000000001 0000000000000000 ffff820040071fc0</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff83083a177b88
        ffff82d0801740bc ffff83083a177bb8 ffff82d080173773</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff82e00cd7b8c0
        00000000000001f8 0000000000000001 0000000000000000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff83083a177c18
        ffff82d080173bf8 0000000000000001 ffff830823fb1000</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff820040071000
        000000000066bdc6 ffff83083a177c48 3400000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff82e00cd7b8c0
        ffff83083a170000 007fffffffffffff 0000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff83083a177c68
        ffff82d080173f15 0000000000000087 3400000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff82d080128626
        ffff82e0107cf4c0 ffff82e00cd7b8c0 0000000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; 0000000000000000
        ffff830823fb1000 ffff83083a177c78 ffff82d0801740bc</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff83083a177c98
        ffff82d08017437c ffff82e0107cf4c0 00000000000000ff</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff83083a177cf8
        ffff82d080173d60 ffff83083a161ee0 0000000000000286</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; ffff82004006f000
        000000000083e7a6 0000000000000000 4400000000000001</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47] Xen call trace:</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d080173f3d&gt;]
        __put_page_type+0xdd/0x24e</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d0801743ad&gt;]
        put_page_type+0xe/0x16</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d0801759cd&gt;]
        put_page_from_l2e+0x187/0x1a2</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d080173a91&gt;]
        free_page_type+0x2ee/0x6bd</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d080173f15&gt;]
        __put_page_type+0xb5/0x24e</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d0801740bc&gt;]
        put_page_type_preemptible+0xe/0x10</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d080173773&gt;]
        put_page_from_l3e+0x144/0x174</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d080173bf8&gt;]
        free_page_type+0x455/0x6bd</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d080173f15&gt;]
        __put_page_type+0xb5/0x24e</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d0801740bc&gt;]
        put_page_type_preemptible+0xe/0x10</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d08017437c&gt;]
        put_page_from_l4e+0x98/0xbb</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d080173d60&gt;]
        free_page_type+0x5bd/0x6bd</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d080173f15&gt;]
        __put_page_type+0xb5/0x24e</tt><tt><br>
      </tt><tt>(XEN) [2013-10-31 12:31:47]&nbsp;&nbsp;&nbsp; [&lt;ffff82d0801740bc&gt;]
        put_page_type_preemptible+0x</tt><br>
    </blockquote>
    &nbsp; -Don Slutz<br>
    <br>
  </body>
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