[Bug 921816] Re: BUG: unable to handle kernel NULL pointer dereference at 00000030
Since the whole of seccomp_filter patches was reverted, this is now fixed in 3.2.0-12.20. ** Changed in: linux (Ubuntu) Status: Incomplete = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/921816 Title: BUG: unable to handle kernel NULL pointer dereference at 0030 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/921816/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 921816] Re: BUG: unable to handle kernel NULL pointer dereference at 00000030
Hm, very quick look only. Seems doing something with the seccomp filters is causing the problem in both cases. I some way good, it seems to happen on Intel and AMD CPUs which at least would rule out specific virt implementations. Will try to reproduce locally. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/921816 Title: BUG: unable to handle kernel NULL pointer dereference at 0030 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/921816/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 921816] Re: BUG: unable to handle kernel NULL pointer dereference at 00000030
Confirmed here, though it is the seccomp tests in test-kernel- security.py. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/921816 Title: BUG: unable to handle kernel NULL pointer dereference at 0030 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/921816/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 921816] Re: BUG: unable to handle kernel NULL pointer dereference at 00000030
Actually this also was present in a -7 kernel (though a modified one to not crash on boot). I got the feeling this has been present all the way back to when we enabled/added the seccomp filter patches. Since there also has been a request to look at a version of those that has been completely rewritten, I am currently building some kernels that way. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/921816 Title: BUG: unable to handle kernel NULL pointer dereference at 0030 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/921816/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 921816] Re: BUG: unable to handle kernel NULL pointer dereference at 00000030
Thank you for taking the time to file a bug report on this issue. However, given the number of bugs that the Kernel Team receives during any development cycle it is impossible for us to review them all. Therefore, we occasionally resort to using automated bots to request further testing. This is such a request. We have noted that there is a newer version of the development kernel than the one you last tested when this issue was found. Please test again with the newer kernel and indicate in the bug if this issue still exists or not. You can update to the latest development kernel by simply running the following commands in a terminal window: sudo apt-get update sudo apt-get upgrade If the bug still exists, change the bug status from Incomplete to Confirmed. If the bug no longer exists, change the bug status from Incomplete to Fix Released. If you want this bot to quit automatically requesting kernel tests, add a tag named: bot-stop-nagging. Thank you for your help, we really do appreciate it. ** Changed in: linux (Ubuntu) Status: Confirmed = Incomplete ** Tags added: kernel-request-3.2.0-12.20 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/921816 Title: BUG: unable to handle kernel NULL pointer dereference at 0030 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/921816/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 921816] Re: BUG: unable to handle kernel NULL pointer dereference at 00000030
** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/921816 Title: BUG: unable to handle kernel NULL pointer dereference at 0030 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/921816/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 921816] Re: BUG: unable to handle kernel NULL pointer dereference at 00000030
** Description changed: - While running kernel-root-ops on EC2 m1.small, Precise. + While running kernel-root-ops on EC2 m1.small, Precise: - ProblemType: Bug - DistroRelease: Ubuntu 12.04 + [18009152.620765] BUG: unable to handle kernel NULL pointer dereference at 0030 + [18009152.620787] IP: [c01e2431] trace_get_fields+0x1/0x30 + [18009152.620804] *pdpt = 2b2f7027 *pde = + [18009152.620817] Oops: [#1] SMP + [18009152.620829] Modules linked in: iptable_filter ip_tables x_tables acpiphp [last unloaded: signpost] + [18009152.620853] + [18009152.620860] Pid: 24932, comm: seccomp_tests Tainted: G O 3.2.0-10-virtual #18-Ubuntu + [18009152.620876] EIP: 0061:[c01e2431] EFLAGS: 00010246 CPU: 0 + [18009152.620884] EIP is at trace_get_fields+0x1/0x30 + [18009152.620891] EAX: 0028 EBX: eb26eb40 ECX: EDX: eb26eb40 + [18009152.620899] ESI: c091923c EDI: c0ae6a90 EBP: eb22bc4c ESP: eb22bc30 + [18009152.620907] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0069 + [18009152.620915] Process seccomp_tests (pid: 24932, ti=eb22a000 task=eb3cd8d0 task.ti=eb22a000) + [18009152.620925] Stack: + [18009152.620929] eb22bc4c c01e5fa8 0028 c11e3a00 eb201480 eb26eb20 eb299170 eb22bc94 + [18009152.620956] c01e60e5 eb26eb40 eb299170 eb299170 c11e3a0c eb201480 0028 001e3a00 + [18009152.620983] 0001 c11e3a00 eb299758 0001 c11e3a00 eb22bcc8 0028 + [18009152.621011] Call Trace: + [18009152.621022] [c01e5fa8] ? create_pred+0xc8/0x110 + [18009152.621033] [c01e60e5] replace_preds.isra.21+0xf5/0x3a0 + [18009152.621044] [c01e6c23] ftrace_profile_set_filter+0xf3/0x110 + [18009152.621057] [c01c3434] create_event_filter+0x44/0xb0 + [18009152.621070] [c0255832] ? pollwake+0x62/0x70 + [18009152.621081] [c0153ce0] ? try_to_wake_up+0x190/0x190 + [18009152.621093] [c0109428] ? xen_force_evtchn_callback+0x18/0x30 + [18009152.621104] [c0109c90] ? check_events+0x8/0xc + [18009152.621113] [c0109c87] ? xen_restore_fl_direct_reloc+0x4/0x4 + [18009152.621127] [c06a2289] ? _raw_spin_unlock_irqrestore+0x19/0x20 + [18009152.621138] [c0140e3c] ? __wake_up_sync_key+0x4c/0x60 + [18009152.621151] [c0136488] ? pvclock_clocksource_read+0xa8/0x120 + [18009152.621161] [c0108280] ? xen_batched_set_pte+0x20/0x1a0 + [18009152.621174] [c03ad66d] ? radix_tree_lookup_slot+0xd/0x10 + [18009152.621186] [c01f6870] ? find_get_page+0x20/0xa0 + [18009152.621196] [c01084b4] ? xen_set_pte_at+0x34/0xa0 + [18009152.621206] [c010586a] ? pte_pfn_to_mfn.part.7+0x9a/0xb0 + [18009152.621216] [c0105921] ? xen_make_pte+0x61/0xf0 + [18009152.621225] [c01f6a92] ? unlock_page+0x42/0x50 + [18009152.621237] [c02146e8] ? __do_fault+0x428/0x550 + [18009152.621247] [c0217c95] ? handle_pte_fault+0x95/0x2c0 + [18009152.621257] [c02180ae] ? handle_mm_fault+0x15e/0x2c0 + [18009152.621269] [c06a59b7] ? do_page_fault+0x227/0x490 + [18009152.621282] [c0233f75] ? kmem_cache_alloc_trace+0x105/0x140 + [18009152.621293] [c0233f75] ? kmem_cache_alloc_trace+0x105/0x140 + [18009152.621303] [c0109c90] ? check_events+0x8/0xc + [18009152.621314] [c01f9b01] ? mempool_create_node+0x31/0xd0 + [18009152.621327] [c03bae20] ? btree_free+0x20/0x20 + [18009152.621337] [c01c34f9] alloc_event_filter+0x59/0x70 + [18009152.621346] [c01c3842] seccomp_add_filter+0xb2/0xf0 + [18009152.621356] [c03badee] ? btree_init+0x2e/0x40 + [18009152.621365] [c01c3ffd] seccomp_set_filter+0x17d/0x1c0 + [18009152.621374] [c01c42d6] prctl_set_seccomp_filter+0xa6/0xe0 + [18009152.621387] [c01715c7] sys_prctl+0x1e7/0x300 + [18009152.621397] [c017021a] ? sys_setresuid+0x10a/0x150 + [18009152.621408] [c06a945f] sysenter_do_call+0x12/0x28 + [18009152.621415] Code: 18 5b 5e 5d c3 90 8d 74 26 00 8d 46 18 eb cf b8 48 e3 84 c0 ba 5c 00 00 00 e8 9c 7f f7 ff 31 c0 eb dc 90 8d b4 26 00 00 00 00 55 8b 48 08 89 e5 8b 51 14 85 d2 74 0b ff d2 5d c3 8d b4 26 00 00 + [18009152.621577] EIP: [c01e2431] trace_get_fields+0x1/0x30 SS:ESP 0069:eb22bc30 + [18009152.621592] CR2: 0030 + [18009152.621603] ---[ end trace d61c9c8f66caf44b ]--- + + ProblemType: BugDistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-10-virtual 3.2.0-10.18 ProcVersionSignature: User Name 3.2.0-10.18-virtual 3.2.1 Uname: Linux 3.2.0-10-virtual i686 AlsaDevices: - total 0 - crw-rw---T 1 root audio 116, 1 Jan 25 19:01 seq - crw-rw---T 1 root audio 116, 33 Jan 25 19:01 timer + total 0 + crw-rw---T 1 root audio 116, 1 Jan 25 19:01 seq + crw-rw---T 1 root audio 116, 33 Jan 25 19:01 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 1.91-0ubuntu1 Architecture: i386 ArecordDevices: Error: [Errno 2] No such file or directory Date: Wed Jan 25 20:39:48 2012 Ec2AMI: ami-a770a6ce Ec2AMIManifest: ubuntu-us-east-1/images-testing/ubuntu-precise-daily-i386-server-20120125.manifest.xml Ec2AvailabilityZone: us-east-1d Ec2InstanceType: m1.small Ec2Kernel: aki-805ea7e9 Ec2Ramdisk: unavailable
[Bug 921816] Re: BUG: unable to handle kernel NULL pointer dereference at 00000030
Bug is reproducible. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/921816 Title: BUG: unable to handle kernel NULL pointer dereference at 0030 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/921816/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 921816] Re: BUG: unable to handle kernel NULL pointer dereference at 00000030
Hi Carlos, Do you know if this oops just start happening with an update to Precise, or has it been happening with earlier Precise kernels? ** Changed in: linux (Ubuntu) Importance: Undecided = Medium ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed ** Tags added: kernel-da-key kernel-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/921816 Title: BUG: unable to handle kernel NULL pointer dereference at 0030 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/921816/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 921816] Re: BUG: unable to handle kernel NULL pointer dereference at 00000030
This is new. I had not tested since -8, and I did not see it there. I am now trying to replicate under KVM, and later on under bare-metal. And... the missing files are due to bug 904489 :-) ** Tags added: qa-manual-testing -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/921816 Title: BUG: unable to handle kernel NULL pointer dereference at 0030 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/921816/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 921816] Re: BUG: unable to handle kernel NULL pointer dereference at 00000030
Also fails on KVM AMD64: [ 1817.380767] seccomp_tests[29708]: system call 3 (sys_close) blocked at 0x7fb2553bf419 [ 1817.381986] seccomp_tests[29712]: system call 60 (sys_exit) blocked at 0x7fb2553bf419 [ 1817.382307] general protection fault: [#1] SMP [ 1817.382616] CPU 0 [ 1817.382806] Modules linked in: iptable_filter ip_tables x_tables psmouse serio_raw virtio_balloon i2c_piix4 mac_hid lp parport floppy [last unloaded: signpost] [ 1817.383513] [ 1817.383690] Pid: 29713, comm: seccomp_tests Tainted: G O 3.2.0-10-generic #18-Ubuntu Bochs Bochs [ 1817.384049] RIP: 0010:[811007e8] [811007e8] trace_get_fields+0x8/0x20 [ 1817.384049] RSP: 0018:88001d09b9b8 EFLAGS: 00010246 [ 1817.384049] RAX: 2e66c35dffe4 RBX: 88001eca0200 RCX: [ 1817.384049] RDX: 0063 RSI: 88001ac7a370 RDI: 8131bad0 [ 1817.384049] RBP: 88001d09b9b8 R08: 88001a977460 R09: 88001eca0400 [ 1817.384049] R10: R11: 81c35040 R12: 8131bad0 [ 1817.384049] R13: 88001ac7a370 R14: 88001a977460 R15: 81c343e0 [ 1817.384049] FS: 7fb255896720() GS:88001fc0() knlGS: [ 1817.384049] CS: 0010 DS: ES: CR0: 8005003b [ 1817.384049] CR2: 00403d16 CR3: 1a965000 CR4: 06f0 [ 1817.384049] DR0: DR1: DR2: [ 1817.384049] DR3: DR6: 0ff0 DR7: 0400 [ 1817.384049] Process seccomp_tests (pid: 29713, threadinfo 88001d09a000, task 88001d984530) [ 1817.384049] Stack: [ 1817.384049] 88001d09b9f8 811049d0 88001eca0200 88001eca0218 [ 1817.384049] 88001eca0200 88000275bda0 88000275bb60 [ 1817.384049] 88001d09ba78 81104b1d 88001eca0200 88001eca0208 [ 1817.384049] Call Trace: [ 1817.384049] [811049d0] create_pred+0x140/0x190 [ 1817.384049] [81104b1d] replace_preds.isra.21+0xfd/0x3e0 [ 1817.384049] [8131bad0] ? btree_free+0x20/0x20 [ 1817.384049] [8131bad0] ? btree_free+0x20/0x20 [ 1817.384049] [81105830] ftrace_profile_set_filter+0x120/0x140 [ 1817.384049] [810dd549] create_event_filter+0x49/0xc0 [ 1817.384049] [8111977e] ? filemap_fault+0xee/0x3e0 [ 1817.384049] [81116eaa] ? unlock_page+0x2a/0x40 [ 1817.384049] [8113a0b9] ? __do_fault+0x439/0x550 [ 1817.384049] [8113d32a] ? handle_pte_fault+0xfa/0x200 [ 1817.384049] [8130cb6e] ? radix_tree_lookup_slot+0xe/0x10 [ 1817.384049] [81117bae] ? find_get_page+0x1e/0x90 [ 1817.384049] [8113d7e8] ? handle_mm_fault+0x1f8/0x350 [ 1817.384049] [816596a0] ? do_page_fault+0x210/0x520 [ 1817.384049] [81162596] ? __kmalloc_node+0x36/0x1e0 [ 1817.384049] [81162a1f] ? kmem_cache_alloc_node_trace+0x14f/0x170 [ 1817.384049] [81119e87] ? mempool_create_node+0x47/0x130 [ 1817.384049] [8131bad0] ? btree_free+0x20/0x20 [ 1817.384049] [810dd628] alloc_event_filter+0x68/0x80 [ 1817.384049] [810dd85b] seccomp_add_filter+0x7b/0x100 [ 1817.384049] [8131ba91] ? btree_init+0x31/0x50 [ 1817.384049] [810de455] seccomp_set_filter+0x255/0x2a0 [ 1817.384049] [813158b7] ? __strncpy_from_user+0x27/0x60 [ 1817.384049] [810de88c] prctl_set_seccomp_filter+0xcc/0x100 [ 1817.384049] [810802a0] sys_prctl+0x240/0x370 [ 1817.384049] [816590e5] ? do_async_page_fault+0x35/0x80 [ 1817.384049] [8165e002] system_call_fastpath+0x16/0x1b [ 1817.384049] Code: e7 be 5c 00 00 00 48 c7 c7 38 e9 a0 81 e8 d1 5a f6 ff 31 c0 c9 c3 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 48 8b 47 10 55 48 89 e5 48 8b 50 28 48 83 c0 30 48 85 d2 74 02 ff d2 5d c3 0f 1f 80 00 [ 1817.384049] RIP [811007e8] trace_get_fields+0x8/0x20 [ 1817.384049] RSP 88001d09b9b8 [ 1817.407839] ---[ end trace e17a23747a08ffb1 ]--- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/921816 Title: BUG: unable to handle kernel NULL pointer dereference at 0030 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/921816/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 921816] Re: BUG: unable to handle kernel NULL pointer dereference at 00000030
Thank you for taking the time to file a bug report on this issue. However, given the number of bugs that the Kernel Team receives during any development cycle it is impossible for us to review them all. Therefore, we occasionally resort to using automated bots to request further testing. This is such a request. We have noted that there is a newer version of the development kernel than the one you last tested when this issue was found. Please test again with the newer kernel and indicate in the bug if this issue still exists or not. You can update to the latest development kernel by simply running the following commands in a terminal window: sudo apt-get update sudo apt-get upgrade If the bug still exists, change the bug status from Incomplete to Confirmed. If the bug no longer exists, change the bug status from Incomplete to Fix Released. If you want this bot to quit automatically requesting kernel tests, add a tag named: bot-stop-nagging. Thank you for your help, we really do appreciate it. ** Changed in: linux (Ubuntu) Status: Confirmed = Incomplete ** Tags added: kernel-request-3.2.0-11.19 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/921816 Title: BUG: unable to handle kernel NULL pointer dereference at 0030 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/921816/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
