Hello,
I can reproduce this in fresh-installed Lenny on a Dell Inspiron 1200,
except that it's now hald-addon-stor that hangs, not hald itself.
Here are the kernel messages that are emitted when the process hangs
(hdb is the CD drive). I don't know what causes the error, since I'm
sure I wasn't doing anything with the CD drive:
[ 2441.864232] hdb: request sense failure: status=0x51 { DriveReady
SeekComplete Error }
[ 2441.864232] hdb: request sense failure: error=0x04 { AbortedCommand }
top shows that the process becomes uninterruptible:
top - 22:45:46 up 51 min, 1 user, load average: 1.21, 1.05, 0.81
Tasks: 46 total, 1 running, 45 sleeping, 0 stopped, 0 zombie
Cpu(s): 13.9%us, 2.0%sy, 0.0%ni, 78.9%id, 4.7%wa, 0.4%hi, 0.0%si,
0.0%st
Mem: 507996k total, 178160k used, 329836k free, 2084k buffers
Swap: 498004k total, 12708k used, 485296k free, 101168k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
...
2081 root 20 0 3384 652 600 D 0.0 0.1 0:00.84 hald-addon-stor
Here are the kernel messages during the (attempted) s2disk itself:
[ 3043.280961] Syncing filesystems ... done.
[ 3043.280961] Freezing user space processes ...
[ 3063.284012] Freezing of tasks failed after 20.00 seconds (1 tasks
refusing to freeze):
[ 3063.284016] task PC stack pid father
...
[ 3063.287695] hald-addon-st D e00abaa0 0 2081 2024
[ 3063.287699] ddbee6e0 00000082 0000000c e00abaa0 c01e1625 ddbee86c
c13f9fa0 00000000
[ 3063.287706] 00000000 00082b68 e00911ca de41fb73 00000000 00000000
00000000 000000ff
[ 3063.287713] 7fffffff 7fffffff de41fbe8 00000002 c02b84b1 e00abaa0
00000000 00000086
[ 3063.287720] Call Trace:
[ 3063.287724] [<c01e1625>] __delay+0x6/0x7
[ 3063.287733] [<e00911ca>] cdrom_do_newpc_cont+0x0/0x2c [ide_cd_mod]
[ 3063.287747] [<c02b84b1>] schedule_timeout+0x13/0x86
[ 3063.287754] [<c02b84b1>] schedule_timeout+0x13/0x86
[ 3063.287763] [<c02b7bd5>] wait_for_common+0xaf/0x10f
[ 3063.287770] [<c011b682>] default_wake_function+0x0/0x8
[ 3063.287779] [<e0099f42>] ide_do_drive_cmd+0xd6/0xf2 [ide_core]
[ 3063.287807] [<e008fc65>] ide_cd_queue_pc+0x35/0xb4 [ide_cd_mod]
[ 3063.287818] [<e008fc65>] ide_cd_queue_pc+0x35/0xb4 [ide_cd_mod]
[ 3063.287825] [<e008fc65>] ide_cd_queue_pc+0x35/0xb4 [ide_cd_mod]
[ 3063.287834] [<e008fc65>] ide_cd_queue_pc+0x35/0xb4 [ide_cd_mod]
[ 3063.287847] [<e008ff44>] cdrom_check_status+0x5a/0x65 [ide_cd_mod]
[ 3063.287880] [<c01d4d5b>] blk_end_sync_rq+0x0/0x25
[ 3063.287888] [<e009195b>] ide_cdrom_drive_status+0x1d/0x8f [ide_cd_mod]
[ 3063.287900] [<e0090046>] ide_cd_read_toc+0xf7/0x3b2 [ide_cd_mod]
[ 3063.287913] [<e0088bbf>] cdrom_ioctl+0x25/0xb0e [cdrom]
[ 3063.287923] [<e00891cf>] cdrom_ioctl+0x635/0xb0e [cdrom]
[ 3063.287933] [<e009084b>] idecd_revalidate_disk+0x10/0x16 [ide_cd_mod]
[ 3063.287945] [<c01760d3>] get_super+0x15/0x7a
[ 3063.287953] [<e008f472>] idecd_ioctl+0x12f/0x144 [ide_cd_mod]
[ 3063.287963] [<e0089f2a>] cdrom_open+0x882/0x8f8 [cdrom]
[ 3063.287971] [<c017a4d8>] do_lookup+0x53/0x153
[ 3063.287978] [<c0182592>] dput+0x15/0xbb
[ 3063.287982] [<c017c408>] __link_path_walk+0x9ff/0xb0b
[ 3063.287990] [<c01d593b>] blkdev_driver_ioctl+0x4b/0x5b
[ 3063.287998] [<c01d5f64>] blkdev_ioctl+0x619/0x669
[ 3063.288015] [<e008f4f1>] idecd_open+0x44/0x6b [ide_cd_mod]
[ 3063.288024] [<c019478b>] do_open+0x205/0x28f
[ 3063.288034] [<c0193d4f>] bd_claim+0x10/0x56
[ 3063.288039] [<c01949ca>] blkdev_open+0x3a/0x4d
[ 3063.288045] [<c0172dca>] __dentry_open+0x130/0x1fc
[ 3063.288052] [<c0172eb2>] nameidata_to_filp+0x1c/0x2c
[ 3063.288059] [<c017d5ae>] do_filp_open+0x34f/0x684
[ 3063.288068] [<e0087322>] cdrom_release+0x179/0x1ae [cdrom]
[ 3063.288076] [<c013604c>] getnstimeofday+0x37/0xbc
[ 3063.288088] [<c0193fde>] block_ioctl+0x13/0x16
[ 3063.288093] [<c0193fcb>] block_ioctl+0x0/0x16
[ 3063.288098] [<c017e3f0>] vfs_ioctl+0x1c/0x5d
[ 3063.288104] [<c017e67b>] do_vfs_ioctl+0x24a/0x261
[ 3063.288109] [<c0172c2c>] do_sys_open+0xa8/0xb0
[ 3063.288115] [<c017e6d3>] sys_ioctl+0x41/0x5a
[ 3063.288122] [<c0103853>] sysenter_past_esp+0x78/0xb1
[ 3063.288131] [<c02b0000>] acpi_pci_root_add+0x165/0x296
[ 3063.288139] =======================
...
[ 3063.289890] Sched Debug Version: v0.07, 2.6.26-1-686 #1
[ 3063.289894] now at 3063289.889057 msecs
[ 3063.289897] .sysctl_sched_latency : 20.000000
[ 3063.289900] .sysctl_sched_min_granularity : 4.000000
[ 3063.289903] .sysctl_sched_wakeup_granularity : 10.000000
[ 3063.289906] .sysctl_sched_child_runs_first : 0.000001
[ 3063.289909] .sysctl_sched_features : 895
[ 3063.289912]
[ 3063.289913] cpu#0, 1396.568 MHz
[ 3063.289915] .nr_running : 1
[ 3063.289918] .load : 1024
[ 3063.289920] .nr_switches : 2808101
[ 3063.289923] .nr_load_updates : 408883
[ 3063.289925] .nr_uninterruptible : 28
[ 3063.289928] .jiffies : 690822
[ 3063.289931] .next_balance : 0.690866
[ 3063.289934] .curr->pid : 2687
[ 3063.289937] .clock : 3063288.006441
[ 3063.289939] .cpu_load[0] : 1024
[ 3063.289942] .cpu_load[1] : 1024
[ 3063.289944] .cpu_load[2] : 1024
[ 3063.289946] .cpu_load[3] : 1024
[ 3063.289949] .cpu_load[4] : 1024
[ 3063.289952]
[ 3063.289953] cfs_rq[0]:
[ 3063.289955] .exec_clock : 0.000000
[ 3063.289958] .MIN_vruntime : 0.000001
[ 3063.289961] .min_vruntime : 334217.305879
[ 3063.289964] .max_vruntime : 0.000001
[ 3063.289966] .spread : 0.000000
[ 3063.289969] .spread0 : 0.000000
[ 3063.289971] .nr_running : 1
[ 3063.289974] .load : 1024
[ 3063.289976] .nr_spread_over : 0
[ 3063.289980]
[ 3063.289981] runnable tasks:
[ 3063.289982] task PID tree-key switches prio
exec-runtime sum-exec sum-sleep
[ 3063.289985]
----------------------------------------------------------------------------------------------------------
[ 3063.289992] R s2disk 2687 334221.303950 70 120
0 0 0.000000 0.000000
0.000000 /
[ 3063.290002]
[ 3063.290007] hald-addon-stor
[ 3063.290011]
[ 3063.290013] Restarting tasks ... done.
hald-addon-stor also blocks ACPI suspend and fails to terminate during shutdown.
This is also a known problem in Ubuntu:
https://bugs.launchpad.net/ubuntu/+source/hal/+bug/62239
-- John Lindgren
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