[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 Taisuke Yamada tai.ker...@cc.rakugaki.org changed: What|Removed |Added CC||tai.ker...@cc.rakugaki.org --- Comment #39 from Taisuke Yamada tai.ker...@cc.rakugaki.org 2011-04-21 11:45:45 --- Is this issue resolved? I'm seeing almost the same issue with 2.6.38 + qemu-kvm-0.14.0 (on NEC Express5800/110Ge server), except that my backtrace is calling paging64_sync_page instead of paging32_sync_page. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #40 from Avi Kivity a...@redhat.com 2011-04-21 12:13:33 --- (In reply to comment #39) Is this issue resolved? I'm seeing almost the same issue with 2.6.38 + qemu-kvm-0.14.0 (on NEC Express5800/110Ge server), except that my backtrace is calling paging64_sync_page instead of paging32_sync_page. Do you also have netfilter enabled on the host? What happens if you enable debug options as per comment #29? -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #41 from prochazka prochazka.nico...@gmail.com 2011-04-21 12:39:11 --- Hi, I never test #38 from avi kivity suggest, and now i suppres all bridge ( brctl) and netfilter configuration from my server, i'm using openvswitch without this problem. Regards, Nicolas Prochazka. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #35 from Avi Kivity a...@redhat.com 2011-02-14 14:52:24 --- Even if it isn't a kvm bug, it needs to be fixed. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #36 from prochazka prochazka.nico...@gmail.com 2011-02-14 15:50:02 --- I agree with you but i must resend this problem to kernel module bridge or netfilter, I must isolate the issue . Regards, Nicolas Prochazka. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #37 from prochazka prochazka.nico...@gmail.com 2011-02-14 15:51:14 --- Sorry I do not read your post to netfilter devel list. Nicolas -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #38 from Avi Kivity a...@redhat.com 2011-02-14 16:02:06 --- Please revert ca44ac386181ba7 and try again (with netfilter enabled). -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #31 from Avi Kivity a...@redhat.com 2011-02-13 16:11:53 --- What happens if you disable (rmmod) all netfilter modules? -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #32 from prochazka prochazka.nico...@gmail.com 2011-02-13 16:38:03 --- Can you explain your idea ? In fact, we are using DNAT and SNAT rules to redirect and access VM Guest ( VNC and RDP ) . And to reproduce bug, connection seems to be important : 1 - Run VMs and connect to them on only one server : cannot reproduce bug 2 - Two server , one which redirect VNC and RDP connection and execute VM second, only execute VM . = bug can reproduce when connect to a VM on second server. So it's difficult to me to desactivate netfilter modules to reproduce. Nicolas -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #33 from Marcelo Tosatti mtosa...@redhat.com 2011-02-13 19:39:09 --- So something else appears to be corrupting memory (i verified and its unlikely to be KVM). Perhaps go back to 2.6.36.3 in an attempt to isolate the issue? -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #34 from prochazka prochazka.nico...@gmail.com 2011-02-13 20:13:53 --- When I said it worked with 2.6.36 , in fact, I not used brigde and netfilter with this test , so now as avi says, perhaps it's more brctl or netfilter bug and not kvm. If you think it's not kvm bug, close. And now my way seems to be very long Regards, Nicolas -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #30 from prochazka prochazka.nico...@gmail.com 2011-02-12 17:06:02 --- hi marcelo, I enable CONFIG_SLUB_DEBUG=y and boot with slub_debug=FZPU, but now I cannot reproduce bug I have a lot of : BUG kmalloc-1024: Object padding overwritten example : Feb 12 16:26:49 bergson11630 Feb 12 16:26:49 bergson11630 = Feb 12 16:26:49 bergson11630 BUG kmalloc-1024: Object padding overwritten Feb 12 16:26:49 bergson11630 - Feb 12 16:26:49 bergson11630 Feb 12 16:26:49 bergson11630 INFO: 0x8802f8588446-0x8802f8588447. First byte 0x0 instead of 0x5a Feb 12 16:26:49 bergson11630 INFO: Allocated in sock_alloc_send_pskb+0x1d4/0x330 age=1 cpu=1 pid=20244 Feb 12 16:26:49 bergson11630 INFO: Freed in pskb_expand_head+0xcc/0x1f0 age=1 cpu=1 pid=20244 Feb 12 16:26:49 bergson11630 INFO: Slab 0xea000a6535c0 objects=29 used=16 fp=0x8802f8588000 flags=0x20040c1 Feb 12 16:26:49 bergson11630 INFO: Object 0x8802f8588000 @offset=0 fp=0x8802f858a240 Feb 12 16:26:49 bergson11630 Feb 12 16:26:49 bergson11630 Object 0x8802f8588000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588020: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588030: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588040: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588050: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588060: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588070: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588080: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588090: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f85880a0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f85880b0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f85880c0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f85880d0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f85880e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f85880f0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588100: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588110: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588120: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588130: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588140: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588150: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588160: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588170: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588180: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f8588190: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f85881a0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f85881b0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f85881c0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f85881d0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Feb 12 16:26:49 bergson11630 Object 0x8802f85881e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #28 from prochazka prochazka.nico...@gmail.com 2011-02-11 15:43:22 --- Marcelo, debug info Regards, Nicolas general protection fault: [#1] SMP last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map CPU 0 Modules linked in: kvm_intel kvm [last unloaded: kvm] Pid: 8532, comm: run Not tainted 2.6.37 #3 0P010H/PowerEdge M600 RIP: 0010:[8113a3e8] [8113a3e8] dup_fd+0x168/0x300 RSP: 0018:8807e3df3d90 EFLAGS: 00010206 RAX: 07f8 RBX: 88022be64580 RCX: bfff RDX: 8807fe5ed0c0 RSI: 00ff RDI: 0800 RBP: 8807e3df3df0 R08: 88022c413a80 R09: 0003 R10: 0001 R11: 4000 R12: 8807fea2f000 R13: 88022c413e80 R14: 8807e7a9d000 R15: 0100 FS: 7ffaa073f700() GS:8800bfc0() knlGS: CS: 0010 DS: ES: CR0: 8005003b CR2: 006d6878 CR3: 0007e79eb000 CR4: 000426e0 DR0: 0001 DR1: 0002 DR2: 0001 DR3: 000a DR6: 0ff0 DR7: 0400 Process run (pid: 8532, threadinfo 8807e3df2000, task 8807fe78a000) Stack: 8802 00010282 0020 8807e7e3e440 8807fe93ac08 8807fe93ac80 7ffaa073f9d0 88022d35e000 01200011 7ffaa073f9d0 Call Trace: [8104fdba] copy_process+0x9fa/0x11e0 [81031e78] ? do_page_fault+0x1b8/0x480 [81050621] do_fork+0x81/0x3f0 [810634cd] ? do_sigaction+0x13d/0x1e0 [819b11c5] ? _raw_spin_lock_irq+0x15/0x20 [81062eb1] ? sigprocmask+0x91/0x110 [8100c498] sys_clone+0x28/0x30 [810032e3] stub_clone+0x13/0x20 [81003042] ? system_call_fastpath+0x16/0x1b Code: 4c 89 c2 e8 5b 83 23 00 45 85 ff 74 77 41 8d 47 ff 31 f6 48 8d 3c c5 08 00 00 00 41 ba 01 00 00 00 31 c0 eb 1a 66 0f 1f 44 00 00 f0 48 ff 42 30 49 89 14 04 ff c6 48 83 c0 08 48 39 f8 74 3c 49 RIP [8113a3e8] dup_fd+0x168/0x300 RSP 8807e3df3d90 ---[ end trace 89621523c6ce6788 ]--- general protection fault: [#2] SMP last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map CPU 0 Modules linked in: kvm_intel kvm [last unloaded: kvm] Pid: 8532, comm: run Tainted: G D 2.6.37 #3 0P010H/PowerEdge M600 RIP: 0010:[8111f5f9] [8111f5f9] filp_close+0x19/0x90 RSP: 0018:8807e3df3b18 EFLAGS: 00010286 RAX: 8807e7a9d7f8 RBX: 0003 RCX: 8807e7e3ec80 RDX: RSI: 8807fe93ac00 RDI: 8807fe5ed0c0 RBP: 8807e3df3b38 R08: R09: R10: 8807e7c4b790 R11: R12: 0001 R13: 8807e7e3e440 R14: 8807fe93ac00 R15: 00ff FS: () GS:8800bfc0() knlGS: CS: 0010 DS: ES: CR0: 8005003b CR2: 006d6878 CR3: 01d87000 CR4: 000426e0 DR0: 0001 DR1: 0002 DR2: 0001 DR3: 000a DR6: 0ff0 DR7: 0400 Process run (pid: 8532, threadinfo 8807e3df2000, task 8807fe78a000) Stack: 0077 0003 0001 8807e7e3e440 8807e3df3b88 810539e0 8807fe78a000 8807fe93ac00 8807fe78a4b4 8807fe78a000 Call Trace: [810539e0] put_files_struct+0xd0/0xf0 [81053a54] exit_files+0x54/0x70 [8105540e] do_exit+0x14e/0x800 [8100740f] oops_end+0xaf/0xf0 [8100765b] die+0x5b/0x90 [81004e72] do_general_protection+0x162/0x170 [819b18b5] general_protection+0x25/0x30 [8113a3e8] ? dup_fd+0x168/0x300 [8104fdba] copy_process+0x9fa/0x11e0 [81031e78] ? do_page_fault+0x1b8/0x480 [81050621] do_fork+0x81/0x3f0 [810634cd] ? do_sigaction+0x13d/0x1e0 [819b11c5] ? _raw_spin_lock_irq+0x15/0x20 [81062eb1] ? sigprocmask+0x91/0x110 [8100c498] sys_clone+0x28/0x30 [810032e3] stub_clone+0x13/0x20 [81003042] ? system_call_fastpath+0x16/0x1b Code: 5d e8 4c 8b 65 f0 4c 8b 6d f8 c9 c3 66 0f 1f 44 00 00 55 48 89 e5 48 83 ec 20 48 89 5d e8 4c 89 65 f0 4c 89 6d f8 0f 1f 44 00 00 48 8b 47 30 48 89 fb 49 89 f4 48 85 c0 74 4d 48 8b 47 20 48 85 RIP [8111f5f9] filp_close+0x19/0x90 RSP 8807e3df3b18 ---[ end trace 89621523c6ce6789 ]--- Fixing recursive fault but reboot is needed! gfn=dead01ff idx=511 lvl=1 d=0 spte=0 old_spte=f001 sp-gfns[511] = dead01ff sp-gfns[511] = dead01ff sp-gfns[511] = dead01ff sp-gfns[510] = dead01fe sp-gfns[509] = dead01fd sp-gfns[508] = dead01fc sp-gfns[507] = dead01fb [ cut here ] kernel BUG at arch/x86/kvm/mmu.c:727! invalid opcode: [#3] SMP last sysfs file:
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #29 from Marcelo Tosatti mtosa...@redhat.com 2011-02-11 21:33:17 --- gfn=dead01ff idx=511 lvl=1 d=0 spte=0 old_spte=f001 The last spte is 0xf001, it should be 0xf001 (two bytes at end of pgtable zeroed). Something is screwing up. Nicolas, can you please enable CONFIG_SLUB_DEBUG=y and boot with slub_debug=FZPU kernel option. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #21 from prochazka prochazka.nico...@gmail.com 2011-02-10 08:25:35 --- Dear all, Do you have more information about this bug submit ? Regards, Nicolas Prochazka. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #22 from Marcelo Tosatti mtosa...@redhat.com 2011-02-10 13:36:25 --- Problem description: Present spte is dropped while syncing 32-bit level 1 shadow page. But sp-gfns[index] contains uninitialized value (0 or f001), so gfn-rmap conversion in rmap_remove fails. However, debug patch from comment #18 verifies that on present spte instantiation, via mmu_set_spte, sp-gfns[] is initialized correctly. From bug instances of comments 19 and 20, index == 511. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #23 from Marcelo Tosatti mtosa...@redhat.com 2011-02-10 13:50:08 --- Nicolas, On comment #2 you mention the bug could not be reproduced, but in comment #3 you report it without hugepages enabled. So, were you using hugepages or not, in the reports #18 and #19? Another thing, what is the last kernel version that works reliably under this workload? -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #24 from prochazka prochazka.nico...@gmail.com 2011-02-10 14:14:25 --- I can now reproduce it under this circonstance on different server - Windows XP guest SP2 : guest OS seems to be important, other XP sp3 works fine - connect with vnc to this guest and connect with RDP on other ( 5 or 6 guests ) . kernel : 2.6.37 qemu-kvm with hugepages option for #18 #19 . /usr/local/bin/qemu -name XP_013 -vga std -net tap,vlan=0,name=interne,ifname=vmtap28 -net nic,vlan=0,macaddr=ac:de:48:88:e2:92,model=e1000 -cpu host -localtime -usb -usbdevice tablet -vnc 10.98.98.13:135 -monitor tcp:127.0.0.1:10135,server,nowait,nodelay -m 512 -pidfile /var/run/qemu/XP_013.pid -net vde,port=85,vlan=5,sock=/tmpsafe/neoswitch_bridge,name=externe -net nic,vlan=5,macaddr=ac:de:48:7b:9e:ec,model=e1000 -mem-prealloc -mem-path /hugepages -rtc base=localtime -drive file=/mnt/vdisk/images/VM-XP_013.1297326902.381783,index=0,media=disk,snapshot=on,cache=unsafe -drive file=/swapfile-guest/swap1,if=ide,index=1,media=disk,snapshot=on,boot=off -fda fat:floppy:/mnt/vdisk/diskconf/XP_013 Last Kernel that works reliably : 2.6.34 ( I do not test with kernel between 2.6.34 and 2.6.37 ) I just reproduce bug, with kernel 2.6.38rc4 + without hugepage ( kvm module from 2.6.38rc4 tree) general protection fault: [#4] SMP last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map CPU 0 Modules linked in: kvm_intel kvm bnx2 Pid: 15886, comm: qemu Tainted: G D 2.6.38-rc4 #1 0P010H/PowerEdge M600 RIP: 0010:[a00319a5] [a00319a5] drop_spte+0xd5/0x1f0 [kvm] RSP: 0018:8804d6cd5b88 EFLAGS: 00010246 RAX: c9001a2d2ff8 RBX: 88049dbc7c00 RCX: 880529dd6460 RDX: RSI: 880529dd6460 RDI: 8807e30ba000 RBP: 8804d6cd5b98 R08: R09: dead00200200 R10: dead00100100 R11: R12: 8804d6efc000 R13: 8804d6cd5c08 R14: R15: 88049dbc7c00 FS: 7f9b43455740() GS:8800bfc0() knlGS: CS: 0010 DS: ES: CR0: 8005003b CR2: 056ab000 CR3: 0004d6cfd000 CR4: 000426e0 DR0: 00a0 DR1: DR2: 0003 DR3: 00b0 DR6: 0ff0 DR7: 0400 Process qemu (pid: 15886, threadinfo 8804d6cd4000, task 88050f22c000) Stack: 8804a5027f00 8804d6efc000 8804d6cd5bf8 a0031e7f fff5 8804d6cd5be8 0180 8804d6efc000 8804a50276e0 8804d6cd5c08 Call Trace: [a0031e7f] kvm_mmu_prepare_zap_page+0x8f/0x2f0 [kvm] [a00327aa] kvm_mmu_zap_all+0x4a/0x90 [kvm] [a0026496] kvm_arch_flush_shadow+0x16/0x30 [kvm] [a0018c43] __kvm_set_memory_region+0x2c3/0x810 [kvm] [81075e28] ? hrtimer_start+0x18/0x20 [a00473b7] ? create_pit_timer+0xb7/0xd0 [kvm] [a00474a3] ? pit_load_count+0xd3/0x120 [kvm] [a0047852] ? kvm_pit_load_count+0x22/0x60 [kvm] [a00191d3] kvm_set_memory_region+0x43/0x70 [kvm] [a001921d] kvm_vm_ioctl_set_memory_region+0x1d/0x30 [kvm] [a0019a55] kvm_vm_ioctl+0x1e5/0x3e0 [kvm] [811368d3] do_vfs_ioctl+0xa3/0x540 [81083afe] ? sys_futex+0xce/0x170 [81136dbf] sys_ioctl+0x4f/0x80 [81002f82] system_call_fastpath+0x16/0x1b Code: 50 38 48 63 f6 48 8b 34 f2 0f b6 50 28 83 e2 0f eb b8 0f 1f 40 00 48 83 e6 fe 0f 84 d9 00 00 00 45 31 c0 0f 1f 00 48 89 f1 31 d2 48 8b 39 48 85 ff 74 10 48 39 fb 74 26 ff c2 48 83 c1 08 83 fa RIP [a00319a5] drop_spte+0xd5/0x1f0 [kvm] RSP 8804d6cd5b88 ---[ end trace a0f93d7b4fb495a7 ]--- general protection fault: [#5] SMP last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map CPU 5 Modules linked in: kvm_intel kvm bnx2 Pid: 30332, comm: bash Tainted: G D 2.6.38-rc4 #1 0P010H/PowerEdge M600 RIP: 0010:[81140b68] [81140b68] dup_fd+0x168/0x300 RSP: 0018:8805fbd03da0 EFLAGS: 00010202 RAX: 07f8 RBX: 8807e94179c0 RCX: bfff RDX: 8807e3ef5480 RSI: 00ff RDI: 0800 RBP: 8805fbd03e00 R08: 8804f2c20280 R09: 0003 R10: 0001 R11: 4000 R12: 8804bf071000 R13: 8804f2c20540 R14: 8807dac23800 R15: 0100 FS: 7fb0a6a11700() GS:8800bfd4() knlGS: CS: 0010 DS: ES: CR0: 8005003b CR2: 00bf3000 CR3: 0007116cf000 CR4: 000426e0 DR0: 0003 DR1: 00b0 DR2: 0001 DR3: DR6: 0ff0 DR7: 0400 Process bash (pid: 30332, threadinfo 8805fbd02000, task 880715cd1000) Stack: 88050005 00010282 0020 8806fa7dca40 8807feaceec8 8807feacef40 7fb0a6a119d0
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #25 from prochazka prochazka.nico...@gmail.com 2011-02-10 14:16:51 --- cmdline /usr/local/bin/qemu -name Soins_003 -vga std -net tap,vlan=0,name=interne,ifname=vmtap5 -net nic,vlan=0,macaddr=ac:de:48:1d:e8:2c,model=e1000 -cpu host -localtime -usb -usbdevice tablet -vnc 10.98.98.19:120 -monitor tcp:127.0.0.1:10120,server,nowait,nodelay -m 512 -pidfile /var/run/qemu/Soins_003.pid -net vde,port=70,vlan=5,sock=/tmpsafe/neoswitch_bridge,name=externe -net nic,vlan=5,macaddr=ac:de:48:8c:cc:e0,model=e1000 -rtc base=localtime -drive file=/mnt/vdisk/images/VM-Soins_003.1296578833.637768,index=0,media=disk,snapshot=on,cache=unsafe -drive file=/swapfile-guest/swap1,if=ide,index=1,media=disk,snapshot=on,boot=off -fda fat:floppy:/mnt/vdisk/diskconf/Soins_003 KSM and transparent hugepage is activated on this kernel. Regards, Nicolas -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #26 from Marcelo Tosatti mtosa...@redhat.com 2011-02-10 16:57:17 --- Nicolas, New debug patch attached. Please try it on top of clean 2.6.37. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #27 from Marcelo Tosatti mtosa...@redhat.com 2011-02-10 16:57:59 --- Created an attachment (id=47152) -- (https://bugzilla.kernel.org/attachment.cgi?id=47152) kvm-debug-spte-gfn-2.patch -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #19 from prochazka prochazka.nico...@gmail.com 2011-02-08 09:46:04 --- An other log without patch #18 / #17 ( as #16 ) I try with #18 Feb 8 00:16:37 bergson18494 rmap_remove: gfn=0 index=511 level=1 Feb 8 00:16:37 bergson18494 rmap_remove: 88027ed4fff8 0-BUG Feb 8 00:16:37 bergson18494 [ cut here ] Feb 8 00:16:37 bergson18494 kernel BUG at arch/x86/kvm/mmu.c:696! Feb 8 00:16:37 bergson18494 invalid opcode: [#2] SMP Feb 8 00:16:37 bergson18494 last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map Feb 8 00:16:37 bergson18494 CPU 5 Feb 8 00:16:37 bergson18494 Modules linked in: kvm_intel kvm bnx2 Feb 8 00:16:37 bergson18494 Feb 8 00:16:37 bergson18494 Pid: 9127, comm: qemu Tainted: G D 2.6.37 #4 0P010H/PowerEdge M600 Feb 8 00:16:37 bergson18494 RIP: 0010:[a00305e4] [a00305e4] drop_spte+0x214/0x220 [kvm] Feb 8 00:16:37 bergson18494 RSP: 0018:88014e145a58 EFLAGS: 00010296 Feb 8 00:16:37 bergson18494 RAX: 002b RBX: 88027ed4fff8 RCX: 0003 Feb 8 00:16:37 bergson18494 RDX: 81d550c8 RSI: 0086 RDI: 0246 Feb 8 00:16:37 bergson18494 RBP: 88014e145a78 R08: 0002476c R09: Feb 8 00:16:37 bergson18494 R10: R11: 000f R12: 880109549640 Feb 8 00:16:37 bergson18494 R13: 88026ae4 R14: R15: 88027ed4fff8 Feb 8 00:16:37 bergson18494 FS: 7fdecdc7a710() GS:8800bfd4() knlGS: Feb 8 00:16:37 bergson18494 CS: 0010 DS: 002b ES: 002b CR0: 8005003b Feb 8 00:16:37 bergson18494 CR2: 2df52c1f CR3: 000107572000 CR4: 000426e0 Feb 8 00:16:37 bergson18494 DR0: 0001 DR1: 0002 DR2: 0001 Feb 8 00:16:37 bergson18494 DR3: 000a DR6: 0ff0 DR7: 0400 Feb 8 00:16:37 bergson18494 Process qemu (pid: 9127, threadinfo 88014e144000, task 880222e6f000) Feb 8 00:16:37 bergson18494 Stack: Feb 8 00:16:37 bergson18494 880109549640 88026ae4 88014e145ae8 Feb 8 00:16:37 bergson18494 88014e145ad8 a00308cf 8801095496e0 88014e145ae8 Feb 8 00:16:37 bergson18494 88026ae4 ea0001ff 88014e145ad8 880222e6 Feb 8 00:16:37 bergson18494 Call Trace: Feb 8 00:16:37 bergson18494 [a00308cf] kvm_mmu_prepare_zap_page+0x8f/0x2f0 [kvm] Feb 8 00:16:37 bergson18494 [a0031627] __kvm_mmu_free_some_pages+0x47/0x80 [kvm] Feb 8 00:16:37 bergson18494 [a00378c8] paging32_page_fault+0x6e8/0x720 [kvm] Feb 8 00:16:37 bergson18494 [a003d6e1] ? x86_emulate_insn+0x1e41/0x6350 [kvm] Feb 8 00:16:37 bergson18494 [a003791a] ? seg_base+0x1a/0x30 [kvm] Feb 8 00:16:37 bergson18494 [a001] kvm_mmu_page_fault+0x21/0x80 [kvm] Feb 8 00:16:37 bergson18494 [a00758bd] handle_exception+0x30d/0x380 [kvm_intel] Feb 8 00:16:37 bergson18494 [a00759c9] vmx_handle_exit+0x99/0x2f0 [kvm_intel] Feb 8 00:16:37 bergson18494 [a002b166] kvm_arch_vcpu_ioctl_run+0x616/0xe20 [kvm] Feb 8 00:16:37 bergson18494 [a0019811] kvm_vcpu_ioctl+0x561/0x860 [kvm] Feb 8 00:16:37 bergson18494 [8100398e] ? apic_timer_interrupt+0xe/0x20 Feb 8 00:16:37 bergson18494 [81131087] do_vfs_ioctl+0xa7/0x560 Feb 8 00:16:37 bergson18494 [81122b18] ? fput+0x8/0x280 Feb 8 00:16:37 bergson18494 [810840fe] ? sys_futex+0xce/0x170 Feb 8 00:16:37 bergson18494 [8113158f] sys_ioctl+0x4f/0x80 Feb 8 00:16:37 bergson18494 [81003042] system_call_fastpath+0x16/0x1b Feb 8 00:16:37 bergson18494 Code: 48 89 da 48 c7 c7 d8 d2 04 a0 49 2b 54 24 30 31 c0 48 c1 fa 03 e8 31 21 97 e1 48 89 de 48 c7 c7 c3 eb 04 a0 31 c0 e8 20 21 97 e1 0f 0b eb fe 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 55 41 54 53 Feb 8 00:16:37 bergson18494 RIP [a00305e4] drop_spte+0x214/0x220 [kvm] Feb 8 00:16:37 bergson18494 RSP 88014e145a58 Feb 8 00:16:37 bergson18494 ---[ end trace 432bd4d0bcdd90c6 ]--- -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #20 from prochazka prochazka.nico...@gmail.com 2011-02-08 10:50:13 --- gfn=f001 idx=511 lvl=1 d=0 spte=0 sp-gfns[511] = f001 sp-gfns[511] = f001 sp-gfns[511] = f001 sp-gfns[510] = f001 sp-gfns[509] = f001 sp-gfns[508] = f001 sp-gfns[507] = f001 [ cut here ] kernel BUG at arch/x86/kvm/mmu.c:727! invalid opcode: [#1] SMP last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map CPU 2 Modules linked in: kvm_intel kvm bnx2 [last unloaded: kvm] Pid: 29624, comm: qemu Not tainted 2.6.37 #4 0P010H/PowerEdge M600 RIP: 0010:[a009d7eb] [a009d7eb] drop_spte+0x2ab/0x2b0 [kvm] RSP: 0018:8802be535a08 EFLAGS: 00010246 RAX: 0027 RBX: 8802ca8dbff8 RCX: 0003 RDX: 81d550c8 RSI: 0082 RDI: 0246 RBP: 8802be535a28 R08: 0001705a R09: R10: R11: 000f R12: f001 R13: 8802c47098c0 R14: 8802be744000 R15: 8802be535a84 FS: 7f2090ae7710() GS:8800bfc8() knlGS: CS: 0010 DS: 002b ES: 002b CR0: 8005003b CR2: 0111 CR3: 0002c228a000 CR4: 000426e0 DR0: 0090 DR1: 00a4 DR2: 00ff DR3: 000f DR6: 0ff0 DR7: 0400 Process qemu (pid: 29624, threadinfo 8802be534000, task 8807fe06) Stack: 0ff8 8802c47098c0 09a7effc 8802fb9a3490 8802be535ab8 a00a22a5 0001 fa03 00455c03 88020001 8802 0001 Call Trace: [a00a22a5] paging32_sync_page+0xe5/0x1c0 [kvm] [a009df9a] __kvm_sync_page+0x5a/0xb0 [kvm] [a00a08d9] mmu_sync_children+0x249/0x350 [kvm] [819a529e] ? _raw_spin_lock+0xe/0x20 [a00af073] ? pic_unlock+0x23/0xb0 [kvm] [a00aef6a] ? pic_update_irq+0x7a/0xf0 [kvm] [a00af388] ? picdev_write+0x158/0x3d0 [kvm] [8100398e] ? apic_timer_interrupt+0xe/0x20 [a00a1535] ? kvm_mmu_get_page+0x4b5/0x710 [kvm] [a00a0aa8] mmu_sync_roots+0xc8/0x160 [kvm] [a00a1810] kvm_mmu_load+0x80/0x420 [kvm] [a00987e5] kvm_arch_vcpu_ioctl_run+0xc95/0xe20 [kvm] [a0086811] kvm_vcpu_ioctl+0x561/0x860 [kvm] [8112176a] ? do_readv_writev+0x1aa/0x1f0 [81131087] do_vfs_ioctl+0xa7/0x560 [810840fe] ? sys_futex+0xce/0x170 [8113158f] sys_ioctl+0x4f/0x80 [81003042] system_call_fastpath+0x16/0x1b Code: 0f 4c 89 e6 41 c0 e8 05 48 89 da 41 83 e0 01 49 2b 55 30 48 c7 c7 38 a5 0b a0 48 c1 fa 03 e8 21 4f 90 e1 48 89 df e8 f5 fb ff ff 0f 0b eb fe 90 55 48 89 e5 41 55 41 54 53 48 83 ec 08 0f 1f 44 RIP [a009d7eb] drop_spte+0x2ab/0x2b0 [kvm] RSP 8802be535a08 ---[ end trace 37175e4ac115e78c ]--- -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #17 from Marcelo Tosatti mtosa...@redhat.com 2011-02-04 21:11:55 --- Nicolas, Please try kvm-debug-spte-gfn.patch on top of plain 2.6.37 (without the previous two patches). Thanks -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 Marcelo Tosatti mtosa...@redhat.com changed: What|Removed |Added Attachment #45162|0 |1 is obsolete|| --- Comment #18 from Marcelo Tosatti mtosa...@redhat.com 2011-02-04 21:13:09 --- Created an attachment (id=46242) -- (https://bugzilla.kernel.org/attachment.cgi?id=46242) debug sp-gfns validity -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #16 from prochazka prochazka.nico...@gmail.com 2011-01-28 06:58:03 --- Et voilà : Jan 28 01:28:18 bergson25412 rmap_remove: 88011ce3fff8 1-BUG Jan 28 01:28:18 bergson25412 [ cut here ] Jan 28 01:28:18 bergson25412 kernel BUG at arch/x86/kvm/mmu.c:701! Jan 28 01:28:18 bergson25412 invalid opcode: [#1] SMP Jan 28 01:28:18 bergson25412 last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map Jan 28 01:28:18 bergson25412 CPU 3 Jan 28 01:28:18 bergson25412 Modules linked in: kvm_intel kvm Jan 28 01:28:18 bergson25412 Jan 28 01:28:18 bergson25412 Pid: 14479, comm: qemu Not tainted 2.6.37 #3 MS-9192-01S/Express5800/120Rh-1 [N8100-F] Jan 28 01:28:18 bergson25412 RIP: 0010:[a001c5a9] [a001c5a9] drop_spte+0x1d9/0x220 [kvm] Jan 28 01:28:18 bergson25412 RSP: 0018:880186bb7a08 EFLAGS: 00010292 Jan 28 01:28:18 bergson25412 RAX: 002c RBX: 88011ce3fff8 RCX: 0003 Jan 28 01:28:18 bergson25412 RDX: 81d970c8 RSI: 0082 RDI: 0246 Jan 28 01:28:18 bergson25412 RBP: 880186bb7a28 R08: e958 R09: Jan 28 01:28:18 bergson25412 R10: R11: 000f R12: 8801c5b8bf00 Jan 28 01:28:18 bergson25412 R13: 880186d6c000 R14: 7a03 R15: 880186bb7a84 Jan 28 01:28:18 bergson25412 FS: 7f8e0fc6d710() GS:8800cfcc() knlGS: Jan 28 01:28:18 bergson25412 CS: 0010 DS: 002b ES: 002b CR0: 8005003b Jan 28 01:28:18 bergson25412 CR2: 000c72ed CR3: 0001aa8ff000 CR4: 26e0 Jan 28 01:28:18 bergson25412 DR0: 0045 DR1: DR2: Jan 28 01:28:18 bergson25412 DR3: 0005 DR6: 0ff0 DR7: 0400 Jan 28 01:28:18 bergson25412 Process qemu (pid: 14479, threadinfo 880186bb6000, task 8801a85fc000) Jan 28 01:28:18 bergson25412 Stack: Jan 28 01:28:18 bergson25412 0ff8 8801c5b8bf00 0c820ffc 8801973cb490 Jan 28 01:28:18 bergson25412 880186bb7ab8 a00210a5 0001 c830 Jan 28 01:28:18 bergson25412 003e6830 0001 ea01 Jan 28 01:28:18 bergson25412 Call Trace: Jan 28 01:28:18 bergson25412 [a00210a5] paging32_sync_page+0xe5/0x1c0 [kvm] Jan 28 01:28:18 bergson25412 [a001cd9a] __kvm_sync_page+0x5a/0xb0 [kvm] Jan 28 01:28:18 bergson25412 [a001f6d9] mmu_sync_children+0x249/0x350 [kvm] Jan 28 01:28:18 bergson25412 [a002391a] ? seg_base+0x1a/0x30 [kvm] Jan 28 01:28:18 bergson25412 [a001d4e2] ? mmu_free_roots+0xc2/0x180 [kvm] Jan 28 01:28:18 bergson25412 [a0020335] ? kvm_mmu_get_page+0x4b5/0x710 [kvm] Jan 28 01:28:18 bergson25412 [a001f8a8] mmu_sync_roots+0xc8/0x160 [kvm] Jan 28 01:28:18 bergson25412 [a0020610] kvm_mmu_load+0x80/0x420 [kvm] Jan 28 01:28:18 bergson25412 [a00177e5] kvm_arch_vcpu_ioctl_run+0xc95/0xe20 [kvm] Jan 28 01:28:18 bergson25412 [a0015fc0] ? kvm_arch_vcpu_load+0x50/0x140 [kvm] Jan 28 01:28:18 bergson25412 [a0005811] kvm_vcpu_ioctl+0x561/0x860 [kvm] Jan 28 01:28:18 bergson25412 [81131087] do_vfs_ioctl+0xa7/0x560 Jan 28 01:28:18 bergson25412 [81122b39] ? fput+0x29/0x280 Jan 28 01:28:18 bergson25412 [810840fe] ? sys_futex+0xce/0x170 Jan 28 01:28:18 bergson25412 [8113158f] sys_ioctl+0x4f/0x80 Jan 28 01:28:18 bergson25412 [81003042] system_call_fastpath+0x16/0x1b Jan 28 01:28:18 bergson25412 Code: 48 89 10 eb c4 48 89 de 48 c7 c7 08 93 03 a0 31 c0 e8 2f 20 99 e1 0f 0b eb fe 48 89 de 48 c 7 c7 de ab 03 a0 31 c0 e8 1a 20 99 e1 0f 0b eb fe 41 0f b6 4c 24 28 4c 89 f6 83 e1 0f 48 89 da 48 c7 Jan 28 01:28:18 bergson25412 RIP [a001c5a9] drop_spte+0x1d9/0x220 [kvm] Jan 28 01:28:18 bergson25412 RSP 880186bb7a08 Jan 28 01:28:18 bergson25412 ---[ end trace ca5feff4c31aee0f ]--- Regards, Nicolas -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug.-- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #9 from prochazka prochazka.nico...@gmail.com 2011-01-25 08:49:48 --- seems to be closed, but our tests are not exhaustive Regards, NP. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #10 from Marcelo Tosatti mtosa...@redhat.com 2011-01-25 13:09:07 --- Nicolas, It would be good if you can test with hugepages enabled again. Thanks for the detailed report. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 Avi Kivity a...@redhat.com changed: What|Removed |Added CC||a...@redhat.com --- Comment #11 from Avi Kivity a...@redhat.com 2011-01-25 13:35:08 --- Don't understand the patch. We just update gfns[index], but we don't update the other rmap stuff? How did it get inconsistent? -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #12 from Marcelo Tosatti mtosa...@redhat.com 2011-01-25 13:55:05 --- It gets inconsistent if mmu_set_spte updates an already present spte with a different gfn. For example: - unsync page spte N gfn A - guest updates gpte that spte N shadows with gfn B - page fault updates sptes N with gfn B, via mmu_set_spte - sp-gfns[] contains stale data -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #13 from Marcelo Tosatti mtosa...@redhat.com 2011-01-25 17:07:58 --- Nicolas, Can you please back out the first patch and apply this debug one instead? -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #14 from Marcelo Tosatti mtosa...@redhat.com 2011-01-25 17:08:42 --- Created an attachment (id=45162) -- (https://bugzilla.kernel.org/attachment.cgi?id=45162) debug rmap remove -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #15 from prochazka prochazka.nico...@gmail.com 2011-01-25 17:29:00 --- previous test is with hugepages. I try to test but i can reproduce only to one server, and this server is not mine. Regards, Nicolas. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 Marcelo Tosatti mtosa...@redhat.com changed: What|Removed |Added CC||mtosa...@redhat.com --- Comment #4 from Marcelo Tosatti mtosa...@redhat.com 2011-01-20 17:28:40 --- Nicolas, This should be fixed by the attached patch, queued for 2.6.36-stable. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #5 from Marcelo Tosatti mtosa...@redhat.com 2011-01-20 17:30:38 --- Created an attachment (id=44522) -- (https://bugzilla.kernel.org/attachment.cgi?id=44522) KVM: MMU: fix rmap_remove on non present sptes KVM: MMU: fix rmap_remove on non present sptes -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #6 from prochazka prochazka.nico...@gmail.com 2011-01-20 19:45:49 --- hello, I do not understand, patch seems to be already apply on 2.6.37 kernel tree, and my test are based on this release. NP. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #7 from Marcelo Tosatti mtosa...@redhat.com 2011-01-21 03:27:36 --- Nicolas, My bad. Can you please try the following patch. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #8 from Marcelo Tosatti mtosa...@redhat.com 2011-01-21 03:29:36 --- Created an attachment (id=44552) -- (https://bugzilla.kernel.org/attachment.cgi?id=44552) update sp-gfns on pte update path -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #1 from prochazka prochazka.nico...@gmail.com 2011-01-19 11:05:05 --- cpuinfo and cmdline : /usr/local/bin/qemu -name R005 -vga std -net tap,vlan=0,name=interne,ifname=vmtap5 -net nic,vlan=0,macaddr=ac:de:48:3f:74:73,model=rtl8139 -localtime -usb -usbdevice tablet -vnc 10.98.98.1:105 -monitor tcp:127.0.0.1:10105,server,nowait,nodelay -m 256 -pidfile /var/run/qemu/R005.pid -net vde,port=55,vlan=5,sock=/tmpsafe/neoswitch_bridge,name=externe -net nic,vlan=5,macaddr=ac:de:48:15:c2:f3,model=rtl8139 -mem-prealloc -mem-path /hugepages -rtc base=localtime -drive file=/mnt/vdisk/images/VM-R005.1294325971.722755,index=0,media=disk,snapshot=on,cache=writeback -drive file=/swapfile-guest/swap1,if=ide,index=1,media=disk,snapshot=on,boot=off -fda fat:floppy:/mnt/vdisk/diskconf/R005 DEV-10.98.98.1:~# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping: 6 cpu MHz : 2493.297 cache size : 6144 KB physical id : 0 siblings: 4 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 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 syscall nx lm 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 dts tpr_shadow vnmi flexpriority bogomips: 4986.59 clflush size: 64 cache_alignment : 64 address sizes : 38 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping: 6 cpu MHz : 2493.297 cache size : 6144 KB physical id : 1 siblings: 4 core id : 0 cpu cores : 4 apicid : 4 initial apicid : 4 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 syscall nx lm 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 dts tpr_shadow vnmi flexpriority bogomips: 4987.73 clflush size: 64 cache_alignment : 64 address sizes : 38 bits physical, 48 bits virtual power management: processor : 2 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping: 6 cpu MHz : 2493.297 cache size : 6144 KB physical id : 0 siblings: 4 core id : 1 cpu cores : 4 apicid : 1 initial apicid : 1 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 syscall nx lm 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 dts tpr_shadow vnmi flexpriority bogomips: 4987.66 clflush size: 64 cache_alignment : 64 address sizes : 38 bits physical, 48 bits virtual power management: processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping: 6 cpu MHz : 2493.297 cache size : 6144 KB physical id : 1 siblings: 4 core id : 1 cpu cores : 4 apicid : 5 initial apicid : 5 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 syscall nx lm 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 dts tpr_shadow vnmi flexpriority bogomips: 4987.67 clflush size: 64 cache_alignment : 64 address sizes : 38 bits physical, 48 bits virtual power management: processor : 4 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Xeon(R) CPU E5420 @ 2.50GHz stepping: 6 cpu MHz : 2493.297 cache size : 6144 KB physical id : 0 siblings: 4 core id : 2 cpu cores : 4 apicid : 2 initial apicid : 2 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #2 from prochazka prochazka.nico...@gmail.com 2011-01-19 11:26:16 --- it seems without hugepage, i can not reproduce this bugs ( -mem-prealloc -mem-path /hugepages ) /usr/local/bin/qemu -name R005 -vga std -net tap,vlan=0,name=interne,ifname=vmtap5 -net nic,vlan=0,macaddr=ac:de:48:3f:74:73,model=rtl8139 -localtime -usb -usbdevice tablet -vnc 10.98.98.1:105 -monitor tcp:127.0.0.1:10105,server,nowait,nodelay -m 256 -pidfile /var/run/qemu/R005.pid -net vde,port=55,vlan=5,sock=/tmpsafe/neoswitch_bridge,name=externe -net nic,vlan=5,macaddr=ac:de:48:15:c2:f3,model=rtl8139 -rtc base=localtime -drive file=/mnt/vdisk/images/VM-R005.1294325971.722755,index=0,media=disk,snapshot=on,cache=writeback -drive file=/swapfile-guest/swap1,if=ide,index=1,media=disk,snapshot=on,boot=off -fda fat:floppy:/mnt/vdisk/diskconf/R005 -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Bug 27052] Module KVM : unable to handle kernel NULL pointer dereference at
https://bugzilla.kernel.org/show_bug.cgi?id=27052 --- Comment #3 from prochazka prochazka.nico...@gmail.com 2011-01-19 11:34:21 --- Sorry, witout hugepage, bug is alway here : rmap_remove: 8802455bfff8 0-BUG [ cut here ] kernel BUG at arch/x86/kvm/mmu.c:695! invalid opcode: [#1] SMP last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map CPU 2 Modules linked in: kvm_intel kvm Pid: 28761, comm: qemu Not tainted 2.6.37 #3 MS-9192-01S/Express5800/120Rj-2 [N8100-1407E] RIP: 0010:[a001c5ae] [a001c5ae] drop_spte+0x1de/0x1f0 [kvm] RSP: 0018:88078db35a18 EFLAGS: 00010292 RAX: 002b RBX: 8802455bfff8 RCX: 0003 RDX: 81d970c8 RSI: 0082 RDI: 0246 RBP: 88078db35a28 R08: 000106f1 R09: R10: R11: 000f R12: 8801cd2c8000 R13: 010147fc R14: 88078da98000 R15: 88078db35a84 FS: 7f4085c02710() GS:8800cfc8() knlGS: CS: 0010 DS: 002b ES: 002b CR0: 8005003b CR2: 1806107a CR3: 0007641ee000 CR4: 26e0 DR0: 0001 DR1: 0002 DR2: 0001 DR3: 000a DR6: 0ff0 DR7: 0400 Process qemu (pid: 28761, threadinfo 88078db34000, task 8801b8264000) Stack: 0ff8 88077abdb280 88078db35ab8 a0021075 00040001 add2 006d5f42 0001 ea01 88078db35a78 001f010031ed Call Trace: [a0021075] paging32_sync_page+0xe5/0x1c0 [kvm] [a001cd6a] __kvm_sync_page+0x5a/0xb0 [kvm] [a001f6a9] mmu_sync_children+0x249/0x350 [kvm] [a00217ca] ? kvm_mmu_pte_write+0x29a/0xaa0 [kvm] [a00238aa] ? seg_base+0x1a/0x30 [kvm] [a001d4b2] ? mmu_free_roots+0xc2/0x180 [kvm] [a0020305] ? kvm_mmu_get_page+0x4b5/0x710 [kvm] [a001f878] mmu_sync_roots+0xc8/0x160 [kvm] [a00205e0] kvm_mmu_load+0x80/0x420 [kvm] [a00177e5] kvm_arch_vcpu_ioctl_run+0xc95/0xe20 [kvm] [81029a61] ? native_load_tr_desc+0x11/0x20 [a0015fc0] ? kvm_arch_vcpu_load+0x50/0x140 [kvm] [a0005811] kvm_vcpu_ioctl+0x561/0x860 [kvm] [819aeeac] ? schedule+0x31c/0x990 [a0004980] ? kvm_vm_ioctl+0x0/0x3e0 [kvm] [81131087] do_vfs_ioctl+0xa7/0x560 [810840fe] ? sys_futex+0xce/0x170 [8113158f] sys_ioctl+0x4f/0x80 [81003042] system_call_fastpath+0x16/0x1b Code: e1 0f 0b eb fe 48 89 de 48 c7 c7 4e ab 03 a0 31 c0 e8 2a 20 99 e1 0f 0b eb fe 48 89 de 48 c7 c7 33 ab 03 a0 31 c0 e8 15 20 99 e1 0f 0b eb fe 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 RIP [a001c5ae] drop_spte+0x1de/0x1f0 [kvm] RSP 88078db35a18 ---[ end trace 75c63c522243bec6 ]--- rmap_remove: 8807d245fff8 0-BUG [ cut here ] kernel BUG at arch/x86/kvm/mmu.c:695! invalid opcode: [#2] SMP last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map CPU 4 Modules linked in: kvm_intel kvm Pid: 17775, comm: qemu Tainted: G D 2.6.37 #3 MS-9192-01S/Express5800/120Rj-2 [N8100-1407E] RIP: 0010:[a001c5ae] [a001c5ae] drop_spte+0x1de/0x1f0 [kvm] RSP: 0018:88002646ba18 EFLAGS: 00010292 RAX: 002b RBX: 8807d245fff8 RCX: 0003 RDX: 81d970c8 RSI: 0082 RDI: 0246 RBP: 88002646ba28 R08: 00011256 R09: R10: R11: 000f R12: 88002645c000 R13: 098d67fc R14: 8800264e R15: 88002646ba84 FS: 7ff5b0c75710() GS:8800cfd0() knlGS: CS: 0010 DS: 002b ES: 002b CR0: 8005003b CR2: e2248000 CR3: 26435000 CR4: 26e0 DR0: 00a0 DR1: DR2: 0003 DR3: 00b0 DR6: 0ff0 DR7: 0400 Process qemu (pid: 17775, threadinfo 88002646a000, task 88005d4dc000) Stack: 0ff8 8801b7ef10a0 88002646bab8 a0021075 0001 0001045c 00228e71 0001 ea01 88002646ba78 0008010031ed Call Trace: [a0021075] paging32_sync_page+0xe5/0x1c0 [kvm] [a001cd6a] __kvm_sync_page+0x5a/0xb0 [kvm] [a001f6a9] mmu_sync_children+0x249/0x350 [kvm] [a0029671] ? x86_emulate_insn+0x1e41/0x6350 [kvm] [a00238aa] ? seg_base+0x1a/0x30 [kvm] [a001d4b2] ? mmu_free_roots+0xc2/0x180 [kvm] [a0020305] ? kvm_mmu_get_page+0x4b5/0x710 [kvm] [a001f878] mmu_sync_roots+0xc8/0x160 [kvm] [a00205e0] kvm_mmu_load+0x80/0x420 [kvm] [a00177e5] kvm_arch_vcpu_ioctl_run+0xc95/0xe20 [kvm] [a0015fc0] ? kvm_arch_vcpu_load+0x50/0x140 [kvm] [a0005811] kvm_vcpu_ioctl+0x561/0x860 [kvm]
