apport information ** Tags added: apport-collected trusty
** Description changed: The current 14.04 candidate uses the kernel version that suffers from a bug described here: https://bugzilla.kernel.org/show_bug.cgi?id=67651 Please make sure to pull the kernel with the fix before the 14.04 release. here is a small test case that would fail if the bug is present: #include <stdlib.h> #include <stdio.h> #include <unistd.h> #include <sys/mman.h> #include <assert.h> int main() { char *p = (char*)0x600000000000; size_t i; for (i = 0; i < 100000; i++) { void *addr = p + i * 4096; void *ret = mmap(addr, 4096, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0); if (addr != ret) { fprintf(stderr, "failed at iteration %zd\n", i); char command[100]; snprintf(command, sizeof(command), "cat /proc/%d/maps | head -30", getpid()); system(command); return 1; } } } On a broken kernel it will print something like this: failed at iteration 65514 00400000-00401000 r-xp 00000000 fc:00 20991316 /tmp/a.out 00600000-00601000 r--p 00000000 fc:00 20991316 /tmp/a.out 00601000-00602000 rw-p 00001000 fc:00 20991316 /tmp/a.out 600000000000-600000001000 rw-p 00000000 00:00 0 600000001000-600000002000 rw-p 00000000 00:00 0 600000002000-600000003000 rw-p 00000000 00:00 0 600000003000-600000004000 rw-p 00000000 00:00 0 600000004000-600000005000 rw-p 00000000 00:00 0 ... + --- + ApportVersion: 2.13.2-0ubuntu2 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC0: lightdm 7946 F.... pulseaudio + kcc 8585 F.... pulseaudio + DistroRelease: Ubuntu 14.04 + HibernationDevice: RESUME=UUID=3959574f-f6cb-4fcf-aa75-5394c06884fd + InstallationDate: Installed on 2014-01-31 (2 days ago) + InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140130) + IwConfig: + eth0 no wireless extensions. + + lo no wireless extensions. + Lsusb: + Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub + Bus 002 Device 004: ID 0e0f:0008 VMware, Inc. + Bus 002 Device 003: ID 0e0f:0002 VMware, Inc. Virtual USB Hub + Bus 002 Device 002: ID 0e0f:0003 VMware, Inc. Virtual Mouse + Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub + MachineType: VMware, Inc. VMware Virtual Platform + Package: linux (not installed) + ProcEnviron: + LANGUAGE=en_US + TERM=xterm + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash + ProcFB: 0 svgadrmfb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-5-generic root=UUID=61da81e0-a5f8-45f4-96c2-6cfda9be652f ro find_preseed=/preseed.cfg auto noprompt priority=critical locale=en_US quiet + ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0 + PulseList: + Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied + No PulseAudio daemon running, or not running as session daemon. + RelatedPackageVersions: + linux-restricted-modules-3.13.0-5-generic N/A + linux-backports-modules-3.13.0-5-generic N/A + linux-firmware 1.122 + RfKill: + 0: hci0: Bluetooth + Soft blocked: no + Hard blocked: no + Tags: trusty + Uname: Linux 3.13.0-5-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: + + _MarkForUpload: True + dmi.bios.date: 07/02/2012 + dmi.bios.vendor: Phoenix Technologies LTD + dmi.bios.version: 6.00 + dmi.board.name: 440BX Desktop Reference Platform + dmi.board.vendor: Intel Corporation + dmi.board.version: None + dmi.chassis.asset.tag: No Asset Tag + dmi.chassis.type: 1 + dmi.chassis.vendor: No Enclosure + dmi.chassis.version: N/A + dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd07/02/2012:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A: + dmi.product.name: VMware Virtual Platform + dmi.product.version: None + dmi.sys.vendor: VMware, Inc. ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1274917/+attachment/3967262/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1274917 Title: make sure https://bugzilla.kernel.org/show_bug.cgi?id=67651 is fixed in Ubunut 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1274917/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
