apport information ** Tags added: apport-collected
** Description changed: Running Description: Ubuntu 10.04 LTS Release: 10.04 Linux jim-nb 2.6.32-24-generic #38~pre201007021000-Ubuntu SMP Sun Jul 4 06:49:54 UTC 2010 i686 GNU/Linux But problem seen on all kernels tried. Boot process hangs for ~7 minutes, then machine starts. Booting with init=/bin/bash and running "hdparm -t /dev/sda5" (sda5 is my ubuntu fs) gives ~500kB/sec. Completing the upstart process brings disk up to ~40 MB/sec. When " bootchart" is installed machine boots in 23 seconds! Resume from hibernate works. Investigation has shown that a compiled C program with an infinite loop, when run in the background from init-top in the intramfs will also cure the slow boot. The C-program saturates one of the two processors of the Atom N450 (~100% CPU1). It appears that bootchart works its magic by simply saturating one CPU. After boot, running the inifinite loop program brings disk performance (as reported by hdparm) up from 40 MB/sec to 70 MB/sec. Adding highres=off nohz=off to the kernel command line cures slow disk problem but machine runs hot with lower battery life. Adding nohpet to the kernel command line also cures the slow boot but not the resume from suspend. I suspect that the problem lies with ahci.ko or libata. Changing the BIOS disk parameter from ahci to compatibility also cures the problem... but screws up the existing Windows partition. Tried the linux-image-2.6.35-020635rc3-generic_2.6.35-020635rc3_i386.deb kernel. It acts the same. + + + --- + AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. + AplayDevices: + **** List of PLAYBACK Hardware Devices **** + card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog] + Subdevices: 1/1 + Subdevice #0: subdevice #0 + Architecture: i386 + ArecordDevices: + **** List of CAPTURE Hardware Devices **** + card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog] + Subdevices: 1/1 + Subdevice #0: subdevice #0 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC0: jim 1338 F.... pulseaudio + CRDA: Error: [Errno 2] No such file or directory + Card0.Amixer.info: + Card hw:0 'Intel'/'HDA Intel at 0x40a00000 irq 22' + Mixer name : 'Realtek ALC272' + Components : 'HDA:10ec0272,1179ff30,00100001' + Controls : 18 + Simple ctrls : 11 + DistroRelease: Ubuntu 10.04 + HibernationDevice: RESUME=UUID=04ecea7b-3e40-41af-aa7e-4d67cbf54a52 + InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4) + MachineType: TOSHIBA TOSHIBA NB305 + Package: linux (not installed) + ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-24-generic root=/dev/sda5 ro + ProcEnviron: + PATH=(custom, no user) + LANG=en_CA.utf8 + SHELL=/bin/bash + ProcVersionSignature: Ubuntu 2.6.32-24.38~pre201007021000-generic 2.6.32.15+drm33.5 + Regression: No + RelatedPackageVersions: linux-firmware 1.34.1 + Reproducible: Yes + RfKill: + 0: phy0: Wireless LAN + Soft blocked: no + Hard blocked: no + Tags: ubuntu-une lucid filesystem needs-upstream-testing + Uname: Linux 2.6.32-24-generic i686 + UnreportableReason: This is not a genuine Ubuntu package + UserGroups: + + dmi.bios.date: 03/16/2010 + dmi.bios.vendor: TOSHIBA + dmi.bios.version: V1.40 + dmi.board.name: NPVAA + dmi.board.vendor: TOSHIBA + dmi.board.version: 1.00 + dmi.chassis.asset.tag: * + dmi.chassis.type: 10 + dmi.chassis.vendor: TOSHIBA + dmi.chassis.version: N/A + dmi.modalias: dmi:bvnTOSHIBA:bvrV1.40:bd03/16/2010:svnTOSHIBA:pnTOSHIBANB305:pvrPLL3AC-01E014:rvnTOSHIBA:rnNPVAA:rvr1.00:cvnTOSHIBA:ct10:cvrN/A: + dmi.product.name: TOSHIBA NB305 + dmi.product.version: PLL3AC-01E014 + dmi.sys.vendor: TOSHIBA ** Attachment added: "AlsaDevices.txt" http://launchpadlibrarian.net/52272502/AlsaDevices.txt -- Disk driver problems on Toshiba NB305Netbook https://bugs.launchpad.net/bugs/601986 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
