[Bug 150851] New: general protection fault: 0000 [#1] SMP; native_read_pmc+0x7/0x40

[Bug 150851] New: general protection fault: 0000 [#1] SMP; native_read_pmc+0x7/0x40

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=150851

            Bug ID: 150851
           Summary: general protection fault: 0000 [#1] SMP;
                    native_read_pmc+0x7/0x40
           Product: Virtualization
           Version: unspecified
    Kernel Version: 4.7.0
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: kvm
          Assignee: virtualization_kvm@kernel-bugs.osdl.org
          Reporter: yin-jianhong@163.com
        Regression: No

[14654.868027] dracut Warning: Unmounted /oldroot. 
[14654.897505] dracut: Disassembling device-mapper devices 
Rebooting. 
[14654.932392] kvm: exiting hardware virtualization 
[14654.937114] general protection fault: 0000 [#1] SMP 
[14654.938084] Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfs
fscache coretemp kvm_intel kvm nfsd ipmi_ssif ipmi_devintf gpio_ich iTCO_wdt
iTCO_vendor_support ibmpex ses i5000_edac irqbypass enclosure
scsi_transport_sas ibmaem edac_core auth_rpcgss lpc_ich i2c_i801 shpchp ipmi_si
pcspkr sg nfs_acl i5k_amb i2c_smbus ipmi_msghandler lockd acpi_cpufreq grace
sunrpc ip_tables xfs libcrc32c sr_mod cdrom sd_mod ata_generic pata_acpi amdkfd
amd_iommu_v2 radeon i2c_algo_bit drm_kms_helper syscopyarea sysfillrect
sysimgblt fb_sys_fops ttm ixgbe drm e1000e mdio lpfc serio_raw i2c_core
ata_piix dca libata ptp scsi_transport_fc bnx2 aacraid pps_core fjes dm_mirror
dm_region_hash dm_log dm_mod 
[14654.938084] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.7.0 #1 
[14654.938084] Hardware name: IBM IBM System x3650 -[7979AC1]-/System Planar,
BIOS -[GGE142AUS-1.13]- 12/03/2008 
[14654.938084] task: ffffffff81c0d4c0 ti: ffffffff81c00000 task.ti:
ffffffff81c00000 
[14654.938084] RIP: 0010:[<ffffffff810659a7>]  [<ffffffff810659a7>]
native_read_pmc+0x7/0x40 
[14654.938084] RSP: 0018:ffff8808cfc03e18  EFLAGS: 00010087 
[14654.938084] RAX: 0000000000000001 RBX: ffff8808cfc0a380 RCX:
000000000000001e 
[14654.938084] RDX: 0000000000000000 RSI: 000000000013003c RDI:
000000000000001e 
[14654.938084] RBP: ffff8808cfc03e20 R08: 0000000000000000 R09:
0000000000000000 
[14654.938084] R10: 0000000000000201 R11: 0000000000000005 R12:
ffffffff80000001 
[14654.938084] R13: ffff88017fc1e000 R14: ffff88017fc1e1c0 R15:
0000000000000018 
[14654.938084] FS:  0000000000000000(0000) GS:ffff8808cfc00000(0000)
knlGS:0000000000000000 
[14654.938084] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 
[14654.938084] CR2: 0000000000f0cde0 CR3: 000000089df17000 CR4:
00000000000006f0 
[14654.938084] Stack: 
[14654.938084]  ffff8808cfc0a380 ffff8808cfc03e58 ffffffff81005b15
ffff8808cfc0a380 
[14654.938084]  ffff88017fc1e000 0000000000000004 ffff8808cfc1d444
00000000000502aa 
[14654.938084]  ffff8808cfc03e80 ffffffff81005bc9 ffff88017fc1e000
ffff8808cfc0a380 
[14654.938084] Call Trace: 
[14654.938084]  <IRQ>  
[14654.938084]  [<ffffffff81005b15>] x86_perf_event_update+0x45/0xa0 
[14654.938084]  [<ffffffff81005bc9>] x86_pmu_stop+0x59/0xd0 
[14654.938084]  [<ffffffff81005c83>] x86_pmu_del+0x43/0x140 
[14654.938084]  [<ffffffff81188d76>] event_sched_out.isra.96+0xd6/0x310 
[14654.938084]  [<ffffffff8118918d>] __perf_remove_from_context+0x2d/0xb0 
[14654.938084]  [<ffffffff8118925d>] __perf_event_exit_context+0x4d/0x70 
[14654.938084]  [<ffffffff81189210>] ? __perf_remove_from_context+0xb0/0xb0 
[14654.938084]  [<ffffffff8111279b>] flush_smp_call_function_queue+0x7b/0x160 
[14654.938084]  [<ffffffff81113283>] genei[-- MARK -- Fri Jul 29 13:40:00 2016] 
[-- MARK -- Fri Jul 29 13:45:00 2016] 
�

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[Bug 150851] general protection fault: 0000 [#1] SMP; native_read_pmc+0x7/0x40

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=150851

Wanpeng Li <wanpeng.li@hotmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |wanpeng.li@hotmail.com

--- Comment #1 from Wanpeng Li <wanpeng.li@hotmail.com> ---
How to reproduce it?

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[Bug 150851] general protection fault: 0000 [#1] SMP; native_read_pmc+0x7/0x40

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=150851

Huaitong Han <oenhan@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |oenhan@gmail.com

--- Comment #2 from Huaitong Han <oenhan@gmail.com> ---
I guess it has nothing with virtulization, please give me your CPU information
with "cat /proc/cpuinfo | head -n 30"

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[Bug 150851] general protection fault: 0000 [#1] SMP; native_read_pmc+0x7/0x40

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=150851

--- Comment #3 from JianhongYin <yin-jianhong@163.com> ---
(In reply to Wanpeng Li from comment #1)
> How to reproduce it?

have not reproduced again yet.

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[Bug 150851] general protection fault: 0000 [#1] SMP; native_read_pmc+0x7/0x40

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=150851

--- Comment #4 from JianhongYin <yin-jianhong@163.com> ---
(In reply to Huaitong Han from comment #2)
> I guess it has nothing with virtulization, please give me your CPU
> information with "cat /proc/cpuinfo | head -n 30"

The machine is used by others,
 got it's info from internal manage system:

System
------------------------------------------
Host Hypervisor     (not virtualized)
Vendor     IBM
Model     System x3650 -[7979AC1]-
Serial Number     KQHTLVV
MAC Address     00:1A:64:C7:EC:08
Memory     34029 MB
NUMA Nodes     1

CPU
------------------------------------------
Vendor     Intel Corp.
Model Name     Xeon
Family     6
Model     23
Stepping     6
Speed     1992.0
Processors     8
Cores     8
Sockets     2
Hyper     False
Flags     fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64
monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 lahf_lm dtherm
tpr_shadow vnmi flexpriority cpufreq
Arch(s)     i386 x86_64

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[Bug 150851] general protection fault: 0000 [#1] SMP; native_read_pmc+0x7/0x40

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=150851

Mark Asselstine <asselsm@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |asselsm@gmail.com

--- Comment #5 from Mark Asselstine <asselsm@gmail.com> ---
You are not being clear if this is falling over in the guest or native, which
is it?

Can you use gdb to confirm the instruction which is failing?

I am no expert but I have built the latest mainline kernel as of today and I
believe the failure is in the call to 'rdpmc'. The PCE bit (9th bit) in CR4
appears to be 0 and thus RDPMC can only be used in ring 0. If it is a guest
which is failing this might explain the oops.

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[Bug 150851] general protection fault: 0000 [#1] SMP; native_read_pmc+0x7/0x40

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=150851

--- Comment #6 from Mark Asselstine <asselsm@gmail.com> ---
If this is the guest and you are using "-cpu host" you can try "-cpu
host,level=9" to disable PMU emulation (see the comments here
https://bugs.launchpad.net/qemu/+bug/1037675)

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[Bug 150851] general protection fault: 0000 [#1] SMP; native_read_pmc+0x7/0x40

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=150851

--- Comment #7 from Mark Asselstine <asselsm@gmail.com> ---
RCX: 000000000000001e is suspicious. This seems to be out of range.

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[Bug 150851] general protection fault: 0000 [#1] SMP; native_read_pmc+0x7/0x40

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=150851

--- Comment #8 from Mark Asselstine <asselsm@gmail.com> ---
This looks very much like what is fixed in commit
65ea11ec6a82b1d44aba62b59e9eb20247e57c6e [x86/hweight: Don't clobber %rdi]

Can you try with the above applied?

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