Bug 40752
| Summary: | BUG: unable to handle kernel paging request at bffffc20 | ||
|---|---|---|---|
| Product: | Virtualization | Reporter: | Philippe Gauthier (philippe.gauthier) |
| Component: | kvm | Assignee: | virtualization_kvm |
| Status: | CLOSED OBSOLETE | ||
| Severity: | high | CC: | alan, avi |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 3.0 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
|
Description
Philippe Gauthier
2011-08-09 15:11:37 UTC
Hardware information (/proc/cpuinfo)? Is this reproducible? This system was reinstalled from Ubuntu running kernel 2.6.38 to Debian running 3.0 just the day before the crash happened. I will keep an eye for more occurrences of the problem. ~$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 CPU 6700 @ 2.66GHz stepping : 6 cpu MHz : 1596.000 cache size : 4096 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu 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 nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm dts tpr_shadow bogomips : 5333.78 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 CPU 6700 @ 2.66GHz stepping : 6 cpu MHz : 2667.000 cache size : 4096 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 1 initial apicid : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu 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 nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm dts tpr_shadow bogomips : 5333.51 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: On 08/09/2011 09:16 PM, bugzilla-daemon@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=40752 > > > > > > Xiao, any idea? Reply-To: xiaoguangrong@cn.fujitsu.com On 08/10/2011 09:39 PM, Avi Kivity wrote: > On 08/09/2011 09:16 PM, bugzilla-daemon@bugzilla.kernel.org wrote: >> https://bugzilla.kernel.org/show_bug.cgi?id=40752 >> >> >> >> >> >> > > Xiao, any idea? > Sorry, i was on vacation, i'll look at it. Reply-To: xiaoguangrong@cn.fujitsu.com On 08/09/2011 11:11 PM, bugzilla-daemon@bugzilla.kernel.org wrote: > _wait_scan] > Aug 9 01:58:35 gridbug kernel: [294131.197712] > Aug 9 01:58:35 gridbug kernel: [294131.197715] Pid: 24025, comm: kvm > Tainted: > P W O 3.0.0-1-686-pae #1 Hewlett-Packard HP xw4400 Workstatio > n/0A68h > Aug 9 01:58:35 gridbug kernel: [294131.197719] EIP: 0060:[<f9d82788>] > EFLAGS: > 00010246 CPU: 1 > Aug 9 01:58:35 gridbug kernel: [294131.197727] EIP is at > shadow_walk_okay+0x13/0x4c [kvm] > Aug 9 01:58:35 gridbug kernel: [294131.197729] EAX: f2265de4 EBX: bffffc20 > ECX: 00000001 EDX: 00000000 > Aug 9 01:58:35 gridbug kernel: [294131.197731] ESI: 00000000 EDI: 00000000 > EBP: 00000006 ESP: f2265d10 > Aug 9 01:58:35 gridbug kernel: [294131.197733] DS: 007b ES: 007b FS: 00d8 > GS: > 00e0 SS: 0068 > Aug 9 01:58:35 gridbug kernel: [294131.197738] 0010a867 00000000 f9d894c0 > 00000006 eadc00a8 ead940e0 02b84798 00000007 > Aug 9 01:58:35 gridbug kernel: [294131.197744] 0000000f 00000002 00000000 > 00000001 ead95601 00000001 00000004 00000000 > Aug 9 01:58:35 gridbug kernel: [294131.197749] 00000001 0000bdbe 00000000 > 0000a1b8 00000000 1aa96867 80000000 0bdbe867 > Aug 9 01:58:35 gridbug kernel: [294131.197763] [<f9d894c0>] ? > paging64_page_fault+0x435/0x68b [kvm] > Aug 9 01:58:35 gridbug kernel: [294131.197768] [<f9da9303>] ? > vmx_get_rflags+0x20/0x4a [kvm_intel] > Aug 9 01:58:35 gridbug kernel: [294131.197777] [<f9d84c46>] ? > kvm_mmu_page_fault+0xf/0x5e [kvm] > Aug 9 01:58:35 gridbug kernel: [294131.197781] [<f9daadfe>] ? > handle_exception+0x146/0x2bb [kvm_intel] > Aug 9 01:58:35 gridbug kernel: [294131.197785] [<f9dab196>] ? > vmx_handle_exit+0x1cb/0x1eb [kvm_intel] > Aug 9 01:58:35 gridbug kernel: [294131.197793] [<f9d81e59>] ? > kvm_arch_vcpu_ioctl_run+0x9fe/0xc37 [kvm] > Aug 9 01:58:35 gridbug kernel: [294131.197797] [<f9da90f7>] ? > vmcs_read64+0x17/0x20 [kvm_intel] > Aug 9 01:58:35 gridbug kernel: [294131.197802] [<c1029d0c>] ? > should_resched+0x5/0x1f > Hi Philippe, The log looks little strange, could you test it using upstream code and show us your .config file, the steps to trigger please? No response Closing as obsolete |