lucid keeps freezing on acer aspire one

[Gavin McCullagh]

I'm now downloading the mainline build to test but thought I would report this now anyway.

On an acer aspire one, I'm regularly getting a complete freeze. The session is still visible on screen but mouse won't move and caps lock LED won't come on. No regular keyboard sequences are responded to.

Some of the time I can reboot using <ctl><alt><sysrq>b however, sometimes this doesn't work and I have to hold the power button down to shutdown and restart. The last time this happened, I managed to blindly press some of the other sysrq sequences from memory. I found this output in syslog afterward:

Feb 14 12:22:41 teenie kernel: [ 7401.951311] ath5k phy0: unsupported jumbo
Feb 14 12:26:46 teenie kernel: [ 7647.559788] ath5k phy0: unsupported jumbo
Feb 14 12:53:11 teenie sudo: pam_sm_authenticate: Called
Feb 14 12:53:11 teenie sudo: pam_sm_authenticate: username = [gavinmc]
Feb 14 13:02:46 teenie kernel: [ 9807.057280] *pde = 00000000
Feb 14 13:02:46 teenie kernel: [ 9807.057309] Modules linked in: binfmt_misc ppdev tun sit xfrm_user xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 deflate zlib_deflate
 ctr twofish twofish_common camellia serpent blowfish cast5 des_generic cbc aes_i586 aes_generic xcbc rmd160 sha256_generic sha1_generic crypto_null af_key snd_hda_codec_
realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm joydev arc4 snd_seq_dummy fbcon tileblit font ecb bitblit softcursor snd_seq_oss snd_seq_m
idi snd_rawmidi snd_seq_midi_event snd_seq ath5k snd_timer i915 snd_seq_device mac80211 drm ath i2c_algo_bit jmb38x_ms sdhci_pci snd intel_agp sdhci psmouse cfg80211 soun
dcore led_class agpgart memstick serio_raw snd_page_alloc video lp output parport r8169 mii
Feb 14 13:02:46 teenie kernel: [ 9807.057485]
Feb 14 13:02:46 teenie kernel: [ 9807.057496] Pid: 33, comm: kswapd0 Not tainted (2.6.31-14-generic #48-Ubuntu) AOA150
Feb 14 13:02:46 teenie kernel: [ 9807.057505] EIP: 0060:[<c02081ef>] EFLAGS: 00010246 CPU: 0
Feb 14 13:02:46 teenie kernel: [ 9807.057516] EIP is at __remove_assoc_queue+0xf/0x50
Feb 14 13:02:46 teenie kernel: [ 9807.057524] EAX: c312576f EBX: c3125747 ECX: 97ca3643 EDX: 8dd21724
Feb 14 13:02:46 teenie kernel: [ 9807.057533] ESI: d564be1c EDI: d564bf14 EBP: f73b5e68 ESP: f73b5e64
Feb 14 13:02:46 teenie kernel: [ 9807.057540] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Feb 14 13:02:46 teenie kernel: [ 9807.057560] 00000001 f73b5e80 c0208275 f204e8c0 d564be1c 00000026 00000080 f73b5eac
Feb 14 13:02:46 teenie kernel: [ 9807.057579] <0> c01faa07 c01b9a7b 00000000 00000026 c0894740 d564c09c d57e8a74 ffffffff
Feb 14 13:02:46 teenie kernel: [ 9807.057599] <0> c0753d60 0000c800 f73b5eb8 c01fab1e 00000087 f73b5ef4 c01bd427 f73b5f38
Feb 14 13:02:46 teenie kernel: [ 9807.057636] [<c0208275>] ? remove_inode_buffers+0x45/0x80
Feb 14 13:02:46 teenie kernel: [ 9807.057650] [<c01faa07>] ? prune_icache+0x187/0x260
Feb 14 13:02:46 teenie kernel: [ 9807.057663] [<c01b9a7b>] ? throttle_vm_writeout+0x2b/0x80
Feb 14 13:02:46 teenie kernel: [ 9807.057676] [<c01fab1e>] ? shrink_icache_memory+0x3e/0x50
Feb 14 13:02:46 teenie kernel: [ 9807.057687] [<c01bd427>] ? shrink_slab+0x107/0x170
Feb 14 13:02:46 teenie kernel: [ 9807.057699] [<c01bf5ad>] ? balance_pgdat+0x38d/0x4d0
Feb 14 13:02:46 teenie kernel: [ 9807.057713] [<c01bd050>] ? isolate_pages_global+0x0/0x70
Feb 14 13:02:46 teenie kernel: [ 9807.057723] [<c01bf7af>] ? kswapd+0xbf/0x100
Feb 14 13:02:46 teenie kernel: [ 9807.057735] [<c015c280>] ? autoremove_wake_function+0x0/0x40
Feb 14 13:02:46 teenie kernel: [ 9807.057746] [<c01bf6f0>] ? kswapd+0x0/0x100
Feb 14 13:02:46 teenie kernel: [ 9807.057756] [<c015bf8c>] ? kthread+0x7c/0x90
Feb 14 13:02:46 teenie kernel: [ 9807.057766] [<c015bf10>] ? kthread+0x0/0x90
Feb 14 13:02:46 teenie kernel: [ 9807.057778] [<c0104007>] ? kernel_thread_helper+0x7/0x10
Feb 14 13:02:46 teenie kernel: [ 9807.057924] ---[ end trace 522431c346850592 ]---
Feb 14 13:03:11 teenie kernel: [ 9831.924078] SysRq : Emergency Sync
Feb 14 13:04:14 teenie kernel: imklog 4.2.0, log source = /var/run/rsyslog/kmsg started.

Perhaps it's unrelated, but I also see this messages in the syslog:

Feb 14 13:04:15 teenie kernel: [ 5.375899] Pid: 0, comm: swapper Not tainted 2.6.30.3 #1
Feb 14 13:04:15 teenie kernel: [ 5.375904] Call Trace:
Feb 14 13:04:15 teenie kernel: [ 5.375918] [<c051d4b0>] ? printk+0x18/0x20
Feb 14 13:04:15 teenie kernel: [ 5.375928] [<c0181597>] __report_bad_irq+0x27/0x90
Feb 14 13:04:15 teenie kernel: [ 5.375936] [<c0180008>] ? handle_IRQ_event+0x58/0x140
Feb 14 13:04:15 teenie kernel: [ 5.375943] [<c018175e>] note_interrupt+0x15e/0x1a0
Feb 14 13:04:15 teenie kernel: [ 5.375951] [<c0181cd3>] handle_fasteoi_irq+0xa3/0xd0
Feb 14 13:04:15 teenie kernel: [ 5.375960] [<c0104f9a>] handle_irq+0x1a/0x30
Feb 14 13:04:15 teenie kernel: [ 5.375967] [<c0104866>] do_IRQ+0x46/0xb0
Feb 14 13:04:15 teenie kernel: [ 5.375975] [<c015a20a>] ? clockevents_program_event+0x9a/0x150
Feb 14 13:04:15 teenie kernel: [ 5.375983] [<c0103749>] common_interrupt+0x29/0x30
Feb 14 13:04:15 teenie kernel: [ 5.375992] [<c052006a>] ? _spin_unlock_irqrestore+0xa/0x10
Feb 14 13:04:15 teenie kernel: [ 5.376000] [<c015aeec>] tick_broadcast_oneshot_control+0x6c/0x120
Feb 14 13:04:15 teenie kernel: [ 5.376008] [<c015a76d>] tick_notify+0x1cd/0x3b0
Feb 14 13:04:15 teenie kernel: [ 5.376017] [<c013e80d>] ? irq_exit+0x7d/0x90
Feb 14 13:04:15 teenie kernel: [ 5.376024] [<c010486f>] ? do_IRQ+0x4f/0xb0
Feb 14 13:04:15 teenie kernel: [ 5.376033] [<c0151849>] ? ktime_get+0x19/0x40
Feb 14 13:04:15 teenie kernel: [ 5.376041] [<c05224dd>] notifier_call_chain+0x2d/0x70
Feb 14 13:04:15 teenie kernel: [ 5.376049] [<c015294a>] raw_notifier_call_chain+0x1a/0x20
Feb 14 13:04:15 teenie kernel: [ 5.376057] [<c015a041>] clockevents_notify+0x21/0x70
Feb 14 13:04:15 teenie kernel: [ 5.376066] [<c0327da9>] acpi_state_timer_broadcast+0x31/0x34
Feb 14 13:04:15 teenie kernel: [ 5.376074] [<c0328482>] acpi_idle_enter_simple+0x11f/0x132
Feb 14 13:04:15 teenie kernel: [ 5.376085] [<c0422b0f>] cpuidle_idle_call+0x6f/0xd0
Feb 14 13:04:15 teenie kernel: [ 5.376092] [<c0102082>] cpu_idle+0x52/0x90
Feb 14 13:04:15 teenie kernel: [ 5.376099] [<c050ac25>] rest_init+0x55/0x60
Feb 14 13:04:15 teenie kernel: [ 5.376110] [<c070c8e5>] start_kernel+0x320/0x388
Feb 14 13:04:15 teenie kernel: [ 5.376118] [<c070c37f>] ? unknown_bootoption+0x0/0x1f5
Feb 14 13:04:15 teenie kernel: [ 5.376125] [<c070c079>] __init_begin+0x79/0x81
Feb 14 13:04:15 teenie kernel: [ 5.500108] Clocksource tsc unstable (delta = -113478989 ns)
Feb 14 13:04:15 teenie kernel: [ 5.868622] ACPI: Battery Slot [BAT1] (battery present)

Feb 14 13:05:35 teenie kernel: [ 1.069843] Pid: 157, comm: usb_id Not tainted 2.6.32-13-generic #18-Ubuntu
Feb 14 13:05:35 teenie kernel: [ 1.069852] Call Trace:
Feb 14 13:05:35 teenie kernel: [ 1.069872] [<c05a3a86>] ? printk+0x1d/0x1f
Feb 14 13:05:35 teenie kernel: [ 1.069888] [<c019fd0c>] __report_bad_irq+0x2c/0x90
Feb 14 13:05:35 teenie kernel: [ 1.069900] [<c019e434>] ? handle_IRQ_event+0x54/0x150
Feb 14 13:05:35 teenie kernel: [ 1.069912] [<c019fec0>] note_interrupt+0x150/0x190
Feb 14 13:05:35 teenie kernel: [ 1.069924] [<c01a04cc>] handle_fasteoi_irq+0xac/0xd0
Feb 14 13:05:35 teenie kernel: [ 1.069937] [<c0105a9d>] handle_irq+0x1d/0x30
Feb 14 13:05:35 teenie kernel: [ 1.069950] [<c05aa55c>] do_IRQ+0x4c/0xc0
Feb 14 13:05:35 teenie kernel: [ 1.069961] [<c0103a90>] common_interrupt+0x30/0x40
Feb 14 13:05:35 teenie kernel: [ 1.069974] [<c01500d8>] ? jiffies_to_timeval+0x28/0x70
Feb 14 13:05:35 teenie kernel: [ 1.069987] [<c01fae9c>] ? kmem_cache_alloc+0xc/0x130
Feb 14 13:05:35 teenie kernel: [ 1.069998] [<c0103a90>] ? common_interrupt+0x30/0x40
Feb 14 13:05:35 teenie kernel: [ 1.070011] [<c02188f3>] d_alloc+0x23/0x190
Feb 14 13:05:35 teenie kernel: [ 1.070022] [<c020e73e>] real_lookup+0x9e/0x110
Feb 14 13:05:35 teenie kernel: [ 1.070033] [<c02100d5>] do_lookup+0x95/0xc0
Feb 14 13:05:35 teenie kernel: [ 1.070045] [<c02104ca>] __link_path_walk+0x10a/0xb60
Feb 14 13:05:35 teenie kernel: [ 1.070058] [<c02070ff>] ? get_empty_filp+0xcf/0x1c0
Feb 14 13:05:35 teenie kernel: [ 1.070069] [<c02110c6>] path_walk+0x46/0xa0
Feb 14 13:05:35 teenie kernel: [ 1.070080] [<c0211229>] do_path_lookup+0x59/0x90
Feb 14 13:05:35 teenie kernel: [ 1.070091] [<c0211fbd>] do_filp_open+0xad/0x8a0
Feb 14 13:05:35 teenie kernel: [ 1.070101] [<c05aa565>] ? do_IRQ+0x55/0xc0
Feb 14 13:05:35 teenie kernel: [ 1.070111] [<c05aa565>] ? do_IRQ+0x55/0xc0
Feb 14 13:05:35 teenie kernel: [ 1.070122] [<c0130585>] ? kmap_atomic_prot+0xd5/0xf0
Feb 14 13:05:35 teenie kernel: [ 1.070135] [<c03465da>] ? find_next_zero_bit+0xa/0xa0
Feb 14 13:05:35 teenie kernel: [ 1.070146] [<c0203955>] do_sys_open+0x55/0x160
Feb 14 13:05:35 teenie kernel: [ 1.070157] [<c05aa565>] ? do_IRQ+0x55/0xc0
Feb 14 13:05:35 teenie kernel: [ 1.070168] [<c0203ace>] sys_open+0x2e/0x40
Feb 14 13:05:35 teenie kernel: [ 1.070179] [<c010344c>] syscall_call+0x7/0xb
Feb 14 13:05:35 teenie kernel: [ 1.252688] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
Feb 14 13:05:35 teenie kernel: [ 1.252738] r8169 0000:02:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17

Feb 14 14:34:56 teenie kernel: [ 1.108577] Pid: 155, comm: modprobe Not tainted 2.6.32-13-generic #18-Ubuntu
Feb 14 14:34:56 teenie kernel: [ 1.108585] Call Trace:
Feb 14 14:34:56 teenie kernel: [ 1.108605] [<c05a3a86>] ? printk+0x1d/0x1f
Feb 14 14:34:56 teenie kernel: [ 1.108619] [<c019fd0c>] __report_bad_irq+0x2c/0x90
Feb 14 14:34:56 teenie kernel: [ 1.108631] [<c019e434>] ? handle_IRQ_event+0x54/0x150
Feb 14 14:34:56 teenie kernel: [ 1.108641] [<c019fec0>] note_interrupt+0x150/0x190
Feb 14 14:34:56 teenie kernel: [ 1.108653] [<c01a04cc>] handle_fasteoi_irq+0xac/0xd0
Feb 14 14:34:56 teenie kernel: [ 1.108665] [<c012326b>] ? ack_apic_level+0x6b/0x170
Feb 14 14:34:56 teenie kernel: [ 1.108679] [<c0105a9d>] handle_irq+0x1d/0x30
Feb 14 14:34:56 teenie kernel: [ 1.108690] [<c05aa55c>] do_IRQ+0x4c/0xc0
Feb 14 14:34:56 teenie kernel: [ 1.108700] [<c01a04b2>] ? handle_fasteoi_irq+0x92/0xd0
Feb 14 14:34:56 teenie kernel: [ 1.108711] [<c0103a90>] common_interrupt+0x30/0x40
Feb 14 14:34:56 teenie kernel: [ 1.108725] [<c0200012>] ? __mem_cgroup_uncharge_common+0x42/0x1b0
Feb 14 14:34:56 teenie kernel: [ 1.108737] [<c02001ce>] mem_cgroup_uncharge_page+0x2e/0x40
Feb 14 14:34:56 teenie kernel: [ 1.108749] [<c01e9f9f>] page_remove_rmap+0x3f/0x50
Feb 14 14:34:56 teenie kernel: [ 1.108760] [<c01e2142>] zap_pte_range+0x262/0x3f0
Feb 14 14:34:56 teenie kernel: [ 1.108771] [<c0151b00>] ? ksoftirqd+0xa0/0xe0
Feb 14 14:34:56 teenie kernel: [ 1.108783] [<c01e2546>] unmap_vmas+0x186/0x350
Feb 14 14:34:56 teenie kernel: [ 1.108794] [<c01e79b5>] unmap_region+0x95/0x120
Feb 14 14:34:56 teenie kernel: [ 1.108806] [<c01e7c26>] do_munmap+0x1e6/0x290
Feb 14 14:34:56 teenie kernel: [ 1.108817] [<c01e7d12>] sys_munmap+0x42/0x60
Feb 14 14:34:56 teenie kernel: [ 1.108827] [<c010344c>] syscall_call+0x7/0xb
Feb 14 14:34:56 teenie kernel: [ 1.168664] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
Feb 14 14:34:56 teenie kernel: [ 1.168712] r8169 0000:02:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17

I never noted this problem on kermic, but it has appeared consistently since upgrade to lucid a month or two ago.

I'm downloading the mainline kernel now to see does that make any difference.

In case it's related, I'm also having trouble with the wireless, having to renegotiate wireless connection periodically.

ProblemType: Bug
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: gavinmc 2145 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0x58540000 irq 16'
   Mixer name : 'Realtek ALC268'
   Components : 'HDA:10ec0268,1025015b,00100101'
   Controls : 9
   Simple ctrls : 6
Date: Sun Feb 14 16:40:23 2010
DistroRelease: Ubuntu 10.04
EcryptfsInUse: Yes
Frequency: Once a day.
HibernationDevice: RESUME=UUID=50d129be-8718-4c40-8f5e-ace947e48833
MachineType: Acer AOA150
Package: linux-image-2.6.32-13-generic 2.6.32-13.18
ProcCmdLine: root=UUID=ec98ddfb-6ff3-42ed-9543-7508e56b5447 ro quiet splash quiet splash usbcore.autosuspend=1
ProcEnviron:
 PATH=(custom, user)
 LANG=en_IE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-13.18-generic
Regression: Yes
RelatedPackageVersions: linux-firmware 1.29
Reproducible: No
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
TestedUpstream: No
Uname: Linux 2.6.32-13-generic i686
WpaSupplicantLog:

dmi.bios.date: 05/09/2008
dmi.bios.vendor: Acer
dmi.bios.version: v0.3301
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 1
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAcer:bvrv0.3301:bd05/09/2008:svnAcer:pnAOA150:pvr1:rvnAcer:rn:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion:
dmi.product.name: AOA150
dmi.product.version: 1
dmi.sys.vendor: Acer

[Gavin McCullagh (gmccullagh)]

I have noted this issue with both vmlinuz-2.6.31-14-generic and 2.6.32-13-generic.

[Gavin McCullagh (gmccullagh)]

Things froze up today again using the mainline kernel 2.6.33-020633rc8-generic.

I hit <ctrl><alt><sysrq>k this time, X was killed and I got to login again. So at a guess, this is maybe an X issue not a kernel one.

[15804.691534] SysRq : Emergency Sync
[15804.691654] Emergency Sync complete
[15807.464278] SysRq : Show Memory
[15807.464291] Mem-Info:
[15807.464296] DMA per-cpu:
[15807.464302] CPU 0: hi: 0, btch: 1 usd: 0
[15807.464307] CPU 1: hi: 0, btch: 1 usd: 0
[15807.464311] Normal per-cpu:
[15807.464317] CPU 0: hi: 186, btch: 31 usd: 139
[15807.464322] CPU 1: hi: 186, btch: 31 usd: 177
[15807.464326] HighMem per-cpu:
[15807.464331] CPU 0: hi: 42, btch: 7 usd: 11
[15807.464337] CPU 1: hi: 42, btch: 7 usd: 31
[15807.464349] active_anon:83558 inactive_anon:439 isolated_anon:0
[15807.464352] active_file:25305 inactive_file:103751 isolated_file:0
[15807.464354] unevictable:0 dirty:3 writeback:0 unstable:0
[15807.464357] free:29210 slab_reclaimable:3972 slab_unreclaimable:3176
[15807.464360] mapped:19517 shmem:11210 pagetables:929 bounce:0
[15807.464376] DMA free:8252kB min:64kB low:80kB high:96kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15812kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0
kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
[15807.464389] lowmem_reserve[]: 0 865 988 988
[15807.464410] Normal free:108352kB min:3728kB low:4660kB high:5592kB active_anon:332476kB inactive_anon:228kB active_file:68584kB inactive_file:324248kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:885944kB mlocked:0kB dirty:0kB writeback:0kB mapped:33416kB shmem:44508kB slab_reclaimable:15888kB slab_unreclaimable:12704kB kernel_stack:2480kB pagetables:3608kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[15807.464424] lowmem_reserve[]: 0 0 986 986
[15807.464443] HighMem free:236kB min:128kB low:260kB high:392kB active_anon:1756kB inactive_anon:1528kB active_file:32636kB inactive_file:90756kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:126324kB mlocked:0kB dirty:12kB writeback:0kB mapped:44652kB shmem:332kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:108kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[15807.464456] lowmem_reserve[]: 0 0 0 0
[15807.464465] DMA: 3*4kB 4*8kB 3*16kB 5*32kB 3*64kB 3*128kB 3*256kB 1*512kB 0*1024kB 1*2048kB 1*4096kB = 8252kB
[15807.464488] Normal: 1024*4kB 198*8kB 423*16kB 231*32kB 135*64kB 54*128kB 13*256kB 2*512kB 1*1024kB 1*2048kB 16*4096kB = 108352kB
[15807.464511] HighMem: 7*4kB 26*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 236kB
[15807.464533] 140267 total pagecache pages
[15807.464538] 0 pages in swap cache
[15807.464542] Swap cache stats: add 0, delete 0, find 0/0
[15807.464547] Free swap = 2971984kB
[15807.464551] Total swap = 2971984kB
[15807.468008] 259328 pages RAM
[15807.468008] 32002 pages HighMem
[15...

[Stefan Bader (smb)]

There might be a few kernel command line options you could play with (Note, I have the AOA110 model which should be identical to yours except the hard drive, IIRC). I think I see the bad interrupt message every time a hang or crash happens, so I would see that as a secondary thing.

1. usbcore.autosuspend=1 is the system more stable when you remove this?
2. enable_mtrr_cleanup=1 This resolves a BIOS bug of the Aspire One and could help stability as well as performance. The AA1 has all MTRR registers clobbered by default, leaving no entry for the video RAM. With it you get one.
3. mem=nopentium We had been looking at issues in older kernels. If the issue still occurs playing around with the above two options, then try this one.

Thanks.

[Gavin McCullagh (gmccullagh)]

I'm trying 1 & 2 out now, thanks.

I'm pretty sure, using intel's powertop suggested I set usbcore.autosuspend=1 and that it never caused problems before. I'll let you know if this makes a difference anyway, thanks.

[Gavin McCullagh (gmccullagh)]

Okay, so applying 1+2 to it doesn't seem to stabilise things. I'm using suggestion 3 now, without 1+2.

Gavin

[Gavin McCullagh (gmccullagh)]

I had a crash this morning using [3]:

title Ubuntu lucid (development branch), kernel 2.6.32-14-generic
uuid ec98ddfb-6ff3-42ed-9543-7508e56b5447
kernel /boot/vmlinuz-2.6.32-14-generic root=UUID=ec98ddfb-6ff3-42ed-9543-7508e56b5447 ro quiet splash quiet splash usbcore.autosuspend=1 mem=nopentium
initrd /boot/initrd.img-2.6.32-14-generic
quiet

Is there much sense in adding 1,2,3 together?

[Stefan Bader (smb)]

Well 2) would be just optimization and is useful all the time. You seemed to have autosuspend on when you had the crash (1+3) but maybe this is irrelevant. One other thing to try is

"i915.powersave=0"

I saw same graphical issues (but for me the screen usually went dark) lately (especially after suspend) which seem to be fixed by this.

[Gavin McCullagh (gmccullagh)]

I added "i915.powersave=0" and found the laptop began crashing a lot more frequently -- generally in a way that <ctrl><alt><sysrq> keys were unresponsive.

I've disabled this setting since as crashes were becoming pretty frequent.

[Mahipal (rao-mahipal)]

Any solution found for freeze of Acer Aspire with Lucid?

[Gavin McCullagh (gmccullagh)]

I'm still getting crashes anyway.

[Mahipal (rao-mahipal)]

This is perfectly reproducible bug. I tried this on different partition of same aspire one ( of course upgrading ). Desktop freezes with no mouse pointer activity and no response from key board /LEDs.

[Matt Williams (matt-harpstar)]

It also is happening on an acer 5110 laptop

[Mahipal (rao-mahipal)]

Upgraded the kernel and libc versions behavior is same old freeze. No change at all. This is actually major critical bug which hasnt got any limelight. Such bugs cannot be ignored even before release.

[Gaurav Kumar (gaurav-b-kumar)]

I've been having this issue, too, but I'm not sure what I could do to add to the information devs need to help fix it. It really sucks to find my laptop frozen after leaving it on overnight to run torrents and the like, and it'd be awesome to see this bug squashed. Any instruction on what to do if the computer freezes would be nice, as I could then help to contribute to fixing this bug. I have an Acer Aspire One, AOA-150, with Ubuntu Desktop 10.04.

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu development release http://cdimage.ubuntu.com/daily-live/current/ . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

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