splat -a "BUG: scheduling while atomic"

[pazak]

Hi there,

System: Linux 2.6.38-gentoo-r7 #4 SMP PREEMPT x86_64 AMD Phenom(tm) 9950 Quad-Core Processor AuthenticAMD GNU/Linux
Glibc: 2.13-r2

Actually splat-a shows all tests pass. However there are some BUG messages in /var/log/messages:

2011-06-13T12:57:12.778984+02:00 (none) kernel: SPL: Loaded module v0.6.0, using hostid 0xa8c002b2
2011-06-13T12:57:16.025988+02:00 (none) kernel: ZFS: Loaded module v0.6.0, ZFS pool version 28, ZFS filesystem version 5
2011-06-13T12:57:55.646984+02:00 (none) kernel: SPLAT: Loaded module v0.6.0
2011-06-13T12:59:32.894238+02:00 (none) kernel: BUG: scheduling while atomic: splat/20569/0x00000002
2011-06-13T12:59:32.894276+02:00 (none) kernel: Modules linked in: splat zfs(P) zcommon(P) znvpair(P) zavl(P) zunicode(P) spl zlib_deflate udf crc_itu_t bridge stp llc iptable_filter ipt_addrtype xt_NFQUEUE xt_dscp xt_hashlimit xt_conntrack xt_connmark xt_mark xt_multiport xt_DSCP xt_owner xt_iprange xt_string tun nvidia(P) asus_atk0110 usblp i2c_piix4 rtc_cmos sky2 iscsi_tcp libiscsi_tcp libiscsi raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq raid0 dm_snapshot dm_crypt dm_mirror dm_region_hash dm_log scsi_wait_scan hid_sunplus hid_sony hid_samsung hid_pl hid_petalynx hid_monterey hid_microsoft hid_logitech ff_memless hid_gyration hid_ezkey hid_cypress hid_chicony hid_cherry hid_belkin hid_apple hid_a4tech sl811_hcd scsi_transport_fc scsi_tgt
2011-06-13T12:59:32.894281+02:00 (none) kernel: Pid: 20569, comm: splat Tainted: P 2.6.38-gentoo-r7 #4
2011-06-13T12:59:32.894284+02:00 (none) kernel: Call Trace:
2011-06-13T12:59:32.894297+02:00 (none) kernel: [] ? __schedule_bug+0x5c/0x60
2011-06-13T12:59:32.894301+02:00 (none) kernel: [] ? schedule+0x658/0x910
2011-06-13T12:59:32.894304+02:00 (none) kernel: [] ? xfs_bmap_search_extents+0x68/0x100
2011-06-13T12:59:32.894308+02:00 (none) kernel: [] ? cpumask_next_and+0x35/0x50
2011-06-13T12:59:32.894312+02:00 (none) kernel: [] ? select_idle_sibling+0x95/0x160
2011-06-13T12:59:32.894315+02:00 (none) kernel: [] ? schedule_timeout+0x1a5/0x200
2011-06-13T12:59:32.894336+02:00 (none) kernel: [] ? wait_for_common+0xc0/0x150
2011-06-13T12:59:32.894340+02:00 (none) kernel: [] ? default_wake_function+0x0/0x10
2011-06-13T12:59:32.894344+02:00 (none) kernel: [] ? splat_atomic_work+0x0/0x300 [splat]
2011-06-13T12:59:32.894347+02:00 (none) kernel: [] ? wait_for_completion+0x18/0x20
2011-06-13T12:59:32.894350+02:00 (none) kernel: [] ? kthread_create+0x9c/0x120
2011-06-13T12:59:32.894371+02:00 (none) kernel: [] ? thread_generic_wrapper+0x0/0x90 [spl]
2011-06-13T12:59:32.894376+02:00 (none) kernel: [] ? kmem_alloc_debug+0xdb/0x120 [spl]
2011-06-13T12:59:32.894392+02:00 (none) kernel: [] ? __thread_create+0x108/0x150 [spl]
2011-06-13T12:59:32.894411+02:00 (none) kernel: [] ? splat_atomic_test1+0xdd/0x320 [splat]
2011-06-13T12:59:32.894416+02:00 (none) kernel: [] ? default_wake_function+0xd/0x10
2011-06-13T12:59:32.894432+02:00 (none) kernel: [] ? __wake_up+0x46/0x60
2011-06-13T12:59:32.894437+02:00 (none) kernel: [] ? autoremove_wake_function+0x0/0x40
2011-06-13T12:59:32.894454+02:00 (none) kernel: [] ? splat_unlocked_ioctl+0x604/0x6d0 [splat]
2011-06-13T12:59:32.894459+02:00 (none) kernel: [] ? __wake_up+0x46/0x60
2011-06-13T12:59:32.894475+02:00 (none) kernel: [] ? fsnotify+0x1c5/0x2d0
2011-06-13T12:59:32.894480+02:00 (none) kernel: [] ? do_vfs_ioctl+0x91/0x520
2011-06-13T12:59:32.894495+02:00 (none) kernel: [] ? sys_ioctl+0x89/0x90
2011-06-13T12:59:32.894500+02:00 (none) kernel: [] ? do_device_not_available+0x9/0x10
2011-06-13T12:59:32.894503+02:00 (none) kernel: [] ? system_call_fastpath+0x16/0x1b
2011-06-13T12:59:32.894519+02:00 (none) kernel: BUG: scheduling while atomic: splat/20569/0x00000002
2011-06-13T12:59:32.894538+02:00 (none) kernel: Modules linked in: splat zfs(P) zcommon(P) znvpair(P) zavl(P) zunicode(P) spl zlib_deflate udf crc_itu_t bridge stp llc iptable_filter ipt_addrtype xt_NFQUEUE xt_dscp xt_hashlimit xt_conntrack xt_connmark xt_mark xt_multiport xt_DSCP xt_owner xt_iprange xt_string tun nvidia(P) asus_atk0110 usblp i2c_piix4 rtc_cmos sky2 iscsi_tcp libiscsi_tcp libiscsi raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq raid0 dm_snapshot dm_crypt dm_mirror dm_region_hash dm_log scsi_wait_scan hid_sunplus hid_sony hid_samsung hid_pl hid_petalynx hid_monterey hid_microsoft hid_logitech ff_memless hid_gyration hid_ezkey hid_cypress hid_chicony hid_cherry hid_belkin hid_apple hid_a4tech sl811_hcd scsi_transport_fc scsi_tgt
2011-06-13T12:59:32.894542+02:00 (none) kernel: Pid: 20569, comm: splat Tainted: P 2.6.38-gentoo-r7 #4
2011-06-13T12:59:32.894544+02:00 (none) kernel: Call Trace:
2011-06-13T12:59:32.894547+02:00 (none) kernel: [] ? __schedule_bug+0x5c/0x60
2011-06-13T12:59:32.894550+02:00 (none) kernel: [] ? schedule+0x658/0x910
2011-06-13T12:59:32.894553+02:00 (none) kernel: [] ? cpumask_next_and+0x35/0x50
2011-06-13T12:59:32.894556+02:00 (none) kernel: [] ? select_idle_sibling+0x95/0x160
2011-06-13T12:59:32.894559+02:00 (none) kernel: [] ? schedule_timeout+0x1a5/0x200
2011-06-13T12:59:32.894575+02:00 (none) kernel: [] ? update_curr+0xc7/0x190
2011-06-13T12:59:32.894579+02:00 (none) kernel: [] ? wait_for_common+0xc0/0x150
2011-06-13T12:59:32.894582+02:00 (none) kernel: [] ? default_wake_function+0x0/0x10
2011-06-13T12:59:32.894585+02:00 (none) kernel: [] ? splat_atomic_work+0x0/0x300 [splat]
2011-06-13T12:59:32.894606+02:00 (none) kernel: [] ? wait_for_completion+0x18/0x20
2011-06-13T12:59:32.894625+02:00 (none) kernel: [] ? kthread_create+0x9c/0x120
2011-06-13T12:59:32.894630+02:00 (none) kernel: [] ? thread_generic_wrapper+0x0/0x90 [spl]
2011-06-13T12:59:32.894647+02:00 (none) kernel: [] ? kmem_alloc_debug+0xdb/0x120 [spl]
2011-06-13T12:59:32.894652+02:00 (none) kernel: [] ? __thread_create+0x108/0x150 [spl]
2011-06-13T12:59:32.894658+02:00 (none) kernel: [] ? splat_atomic_test1+0xdd/0x320 [splat]
2011-06-13T12:59:32.894774+02:00 (none) kernel: [] ? default_wake_function+0xd/0x10
2011-06-13T12:59:32.894783+02:00 (none) kernel: [] ? __wake_up+0x46/0x60
2011-06-13T12:59:32.894788+02:00 (none) kernel: [] ? autoremove_wake_function+0x0/0x40
2011-06-13T12:59:32.894792+02:00 (none) kernel: [] ? splat_unlocked_ioctl+0x604/0x6d0 [splat]
2011-06-13T12:59:32.894795+02:00 (none) kernel: [] ? __wake_up+0x46/0x60
2011-06-13T12:59:32.894811+02:00 (none) kernel: [] ? fsnotify+0x1c5/0x2d0
2011-06-13T12:59:32.894816+02:00 (none) kernel: [] ? do_vfs_ioctl+0x91/0x520
2011-06-13T12:59:32.894819+02:00 (none) kernel: [] ? sys_ioctl+0x89/0x90
2011-06-13T12:59:32.894834+02:00 (none) kernel: [] ? do_device_not_available+0x9/0x10
2011-06-13T12:59:32.894840+02:00 (none) kernel: [] ? system_call_fastpath+0x16/0x1b
2011-06-13T12:59:32.894843+02:00 (none) kernel: BUG: scheduling while atomic: splat/20569/0x00000002
2011-06-13T12:59:32.894861+02:00 (none) kernel: Modules linked in: splat zfs(P) zcommon(P) znvpair(P) zavl(P) zunicode(P) spl zlib_deflate udf crc_itu_t bridge stp llc iptable_filter ipt_addrtype xt_NFQUEUE xt_dscp xt_hashlimit xt_conntrack xt_connmark xt_mark xt_multiport xt_DSCP xt_owner xt_iprange xt_string tun nvidia(P) asus_atk0110 usblp i2c_piix4 rtc_cmos sky2 iscsi_tcp libiscsi_tcp libiscsi raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq raid0 dm_snapshot dm_crypt dm_mirror dm_region_hash dm_log scsi_wait_scan hid_sunplus hid_sony hid_samsung hid_pl hid_petalynx hid_monterey hid_microsoft hid_logitech ff_memless hid_gyration hid_ezkey hid_cypress hid_chicony hid_cherry hid_belkin hid_apple hid_a4tech sl811_hcd scsi_transport_fc scsi_tgt
2011-06-13T12:59:32.894869+02:00 (none) kernel: Pid: 20569, comm: splat Tainted: P 2.6.38-gentoo-r7 #4
2011-06-13T12:59:32.894872+02:00 (none) kernel: Call Trace:
2011-06-13T12:59:32.894875+02:00 (none) kernel: [] ? __schedule_bug+0x5c/0x60
2011-06-13T12:59:32.894878+02:00 (none) kernel: [] ? schedule+0x658/0x910
2011-06-13T12:59:32.894881+02:00 (none) kernel: [] ? cpumask_next_and+0x35/0x50
2011-06-13T12:59:32.894884+02:00 (none) kernel: [] ? select_idle_sibling+0x95/0x160
2011-06-13T12:59:32.894887+02:00 (none) kernel: [] ? schedule_timeout+0x1a5/0x200
2011-06-13T12:59:32.894890+02:00 (none) kernel: [] ? native_smp_send_reschedule+0x3c/0x60
2011-06-13T12:59:32.894907+02:00 (none) kernel: [] ? resched_task+0x60/0x70
2011-06-13T12:59:32.894911+02:00 (none) kernel: [] ? wait_for_common+0xc0/0x150
2011-06-13T12:59:32.894914+02:00 (none) kernel: [] ? default_wake_function+0x0/0x10
2011-06-13T12:59:32.894933+02:00 (none) kernel: [] ? splat_atomic_work+0x0/0x300 [splat]
2011-06-13T12:59:32.894951+02:00 (none) kernel: [] ? wait_for_completion+0x18/0x20
2011-06-13T12:59:32.894963+02:00 (none) kernel: [] ? kthread_create+0x9c/0x120
2011-06-13T12:59:32.894980+02:00 (none) kernel: [] ? thread_generic_wrapper+0x0/0x90 [spl]
2011-06-13T12:59:32.894986+02:00 (none) kernel: [] ? kmem_alloc_debug+0xdb/0x120 [spl]
2011-06-13T12:59:32.894990+02:00 (none) kernel: [] ? __thread_create+0x108/0x150 [spl]
2011-06-13T12:59:32.894994+02:00 (none) kernel: [] ? splat_atomic_test1+0xdd/0x320 [splat]
2011-06-13T12:59:32.895010+02:00 (none) kernel: [] ? default_wake_function+0xd/0x10
2011-06-13T12:59:32.895015+02:00 (none) kernel: [] ? __wake_up+0x46/0x60
2011-06-13T12:59:32.895018+02:00 (none) kernel: [] ? autoremove_wake_function+0x0/0x40
2011-06-13T12:59:32.895034+02:00 (none) kernel: [] ? splat_unlocked_ioctl+0x604/0x6d0 [splat]
2011-06-13T12:59:32.895039+02:00 (none) kernel: [] ? __wake_up+0x46/0x60
2011-06-13T12:59:32.895042+02:00 (none) kernel: [] ? fsnotify+0x1c5/0x2d0
2011-06-13T12:59:32.895046+02:00 (none) kernel: [] ? do_vfs_ioctl+0x91/0x520
2011-06-13T12:59:32.895050+02:00 (none) kernel: [] ? sys_ioctl+0x89/0x90
2011-06-13T12:59:32.895053+02:00 (none) kernel: [] ? do_device_not_available+0x9/0x10
2011-06-13T12:59:32.895068+02:00 (none) kernel: [] ? system_call_fastpath+0x16/0x1b
2011-06-13T12:59:32.897132+02:00 (none) kernel: BUG: scheduling while atomic: splat/20569/0x00000002
2011-06-13T12:59:32.897164+02:00 (none) kernel: Modules linked in: splat zfs(P) zcommon(P) znvpair(P) zavl(P) zunicode(P) spl zlib_deflate udf crc_itu_t bridge stp llc iptable_filter ipt_addrtype xt_NFQUEUE xt_dscp xt_hashlimit xt_conntrack xt_connmark xt_mark xt_multiport xt_DSCP xt_owner xt_iprange xt_string tun nvidia(P) asus_atk0110 usblp i2c_piix4 rtc_cmos sky2 iscsi_tcp libiscsi_tcp libiscsi raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq raid0 dm_snapshot dm_crypt dm_mirror dm_region_hash dm_log scsi_wait_scan hid_sunplus hid_sony hid_samsung hid_pl hid_petalynx hid_monterey hid_microsoft hid_logitech ff_memless hid_gyration hid_ezkey hid_cypress hid_chicony hid_cherry hid_belkin hid_apple hid_a4tech sl811_hcd scsi_transport_fc scsi_tgt
2011-06-13T12:59:32.897168+02:00 (none) kernel: Pid: 20569, comm: splat Tainted: P 2.6.38-gentoo-r7 #4
2011-06-13T12:59:32.897171+02:00 (none) kernel: Call Trace:
2011-06-13T12:59:32.897176+02:00 (none) kernel: [] ? __schedule_bug+0x5c/0x60
2011-06-13T12:59:32.897179+02:00 (none) kernel: [] ? schedule+0x658/0x910
2011-06-13T12:59:32.897183+02:00 (none) kernel: [] ? cpumask_next_and+0x35/0x50
2011-06-13T12:59:32.897186+02:00 (none) kernel: [] ? select_idle_sibling+0x95/0x160
2011-06-13T12:59:32.897189+02:00 (none) kernel: [] ? schedule_timeout+0x1a5/0x200
2011-06-13T12:59:32.897192+02:00 (none) kernel: [] ? update_curr+0xc7/0x190
2011-06-13T12:59:32.897195+02:00 (none) kernel: [] ? wait_for_common+0xc0/0x150
2011-06-13T12:59:32.897198+02:00 (none) kernel: [] ? default_wake_function+0x0/0x10
2011-06-13T12:59:32.897216+02:00 (none) kernel: [] ? splat_atomic_work+0x0/0x300 [splat]
2011-06-13T12:59:32.897220+02:00 (none) kernel: [] ? wait_for_completion+0x18/0x20
2011-06-13T12:59:32.897223+02:00 (none) kernel: [] ? kthread_create+0x9c/0x120
2011-06-13T12:59:32.897227+02:00 (none) kernel: [] ? thread_generic_wrapper+0x0/0x90 [spl]
2011-06-13T12:59:32.897230+02:00 (none) kernel: [] ? kmem_alloc_debug+0xdb/0x120 [spl]
2011-06-13T12:59:32.897233+02:00 (none) kernel: [] ? __thread_create+0x108/0x150 [spl]
2011-06-13T12:59:32.897237+02:00 (none) kernel: [] ? splat_atomic_test1+0xdd/0x320 [splat]
2011-06-13T12:59:32.897239+02:00 (none) kernel: [] ? default_wake_function+0xd/0x10
2011-06-13T12:59:32.897242+02:00 (none) kernel: [] ? __wake_up+0x46/0x60
2011-06-13T12:59:32.897245+02:00 (none) kernel: [] ? autoremove_wake_function+0x0/0x40
2011-06-13T12:59:32.897248+02:00 (none) kernel: [] ? splat_unlocked_ioctl+0x604/0x6d0 [splat]
2011-06-13T12:59:32.897251+02:00 (none) kernel: [] ? __wake_up+0x46/0x60
2011-06-13T12:59:32.897254+02:00 (none) kernel: [] ? fsnotify+0x1c5/0x2d0
2011-06-13T12:59:32.897257+02:00 (none) kernel: [] ? do_vfs_ioctl+0x91/0x520
2011-06-13T12:59:32.897260+02:00 (none) kernel: [] ? sys_ioctl+0x89/0x90
2011-06-13T12:59:32.897262+02:00 (none) kernel: [] ? do_device_not_available+0x9/0x10
2011-06-13T12:59:32.897281+02:00 (none) kernel: [] ? system_call_fastpath+0x16/0x1b
2011-06-13T12:59:32.897284+02:00 (none) kernel: BUG: scheduling while atomic: splat/20569/0x00000002
2011-06-13T12:59:32.897300+02:00 (none) kernel: Modules linked in: splat zfs(P) zcommon(P) znvpair(P) zavl(P) zunicode(P) spl zlib_deflate udf crc_itu_t bridge stp llc iptable_filter ipt_addrtype xt_NFQUEUE xt_dscp xt_hashlimit xt_conntrack xt_connmark xt_mark xt_multiport xt_DSCP xt_owner xt_iprange xt_string tun nvidia(P) asus_atk0110 usblp i2c_piix4 rtc_cmos sky2 iscsi_tcp libiscsi_tcp libiscsi raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq raid0 dm_snapshot dm_crypt dm_mirror dm_region_hash dm_log scsi_wait_scan hid_sunplus hid_sony hid_samsung hid_pl hid_petalynx hid_monterey hid_microsoft hid_logitech ff_memless hid_gyration hid_ezkey hid_cypress hid_chicony hid_cherry hid_belkin hid_apple hid_a4tech sl811_hcd scsi_transport_fc scsi_tgt
2011-06-13T12:59:32.897304+02:00 (none) kernel: Pid: 20569, comm: splat Tainted: P 2.6.38-gentoo-r7 #4
2011-06-13T12:59:32.897306+02:00 (none) kernel: Call Trace:
2011-06-13T12:59:32.897326+02:00 (none) kernel: [] ? __schedule_bug+0x5c/0x60
2011-06-13T12:59:32.897330+02:00 (none) kernel: [] ? schedule+0x658/0x910
2011-06-13T12:59:32.897333+02:00 (none) kernel: [] ? cpumask_next_and+0x35/0x50
2011-06-13T12:59:32.897336+02:00 (none) kernel: [] ? select_idle_sibling+0x95/0x160
2011-06-13T12:59:32.897351+02:00 (none) kernel: [] ? schedule_timeout+0x1a5/0x200
2011-06-13T12:59:32.897354+02:00 (none) kernel: [] ? wait_for_common+0xc0/0x150
2011-06-13T12:59:32.897359+02:00 (none) kernel: [] ? default_wake_function+0x0/0x10
2011-06-13T12:59:32.897373+02:00 (none) kernel: [] ? splat_atomic_work+0x0/0x300 [splat]
2011-06-13T12:59:32.897376+02:00 (none) kernel: [] ? wait_for_completion+0x18/0x20
2011-06-13T12:59:32.897379+02:00 (none) kernel: [] ? kthread_create+0x9c/0x120
2011-06-13T12:59:32.897383+02:00 (none) kernel: [] ? thread_generic_wrapper+0x0/0x90 [spl]
2011-06-13T12:59:32.897386+02:00 (none) kernel: [] ? kmem_alloc_debug+0xdb/0x120 [spl]
2011-06-13T12:59:32.897400+02:00 (none) kernel: [] ? __thread_create+0x108/0x150 [spl]
2011-06-13T12:59:32.897404+02:00 (none) kernel: [] ? splat_atomic_test1+0xdd/0x320 [splat]
2011-06-13T12:59:32.897453+02:00 (none) kernel: [] ? default_wake_function+0xd/0x10
2011-06-13T12:59:32.897465+02:00 (none) kernel: [] ? __wake_up+0x46/0x60
2011-06-13T12:59:32.897891+02:00 (none) kernel: [] ? autoremove_wake_function+0x0/0x40
2011-06-13T12:59:32.897900+02:00 (none) kernel: [] ? splat_unlocked_ioctl+0x604/0x6d0 [splat]
2011-06-13T12:59:32.897905+02:00 (none) kernel: [] ? __wake_up+0x46/0x60
2011-06-13T12:59:32.897912+02:00 (none) kernel: [] ? fsnotify+0x1c5/0x2d0
2011-06-13T12:59:32.897915+02:00 (none) kernel: [] ? do_vfs_ioctl+0x91/0x520
2011-06-13T12:59:32.897918+02:00 (none) kernel: [] ? sys_ioctl+0x89/0x90
2011-06-13T12:59:32.897932+02:00 (none) kernel: [] ? do_device_not_available+0x9/0x10
2011-06-13T12:59:32.897936+02:00 (none) kernel: [] ? system_call_fastpath+0x16/0x1b
2011-06-13T12:59:32.897951+02:00 (none) kernel: BUG: scheduling while atomic: splat/20569/0x00000002
2011-06-13T12:59:32.897984+02:00 (none) kernel: Modules linked in: splat zfs(P) zcommon(P) znvpair(P) zavl(P) zunicode(P) spl zlib_deflate udf crc_itu_t bridge stp llc iptable_filter ipt_addrtype xt_NFQUEUE xt_dscp xt_hashlimit xt_conntrack xt_connmark xt_mark xt_multiport xt_DSCP xt_owner xt_iprange xt_string tun nvidia(P) asus_atk0110 usblp i2c_piix4 rtc_cmos sky2 iscsi_tcp libiscsi_tcp libiscsi raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq raid0 dm_snapshot dm_crypt dm_mirror dm_region_hash dm_log scsi_wait_scan hid_sunplus hid_sony hid_samsung hid_pl hid_petalynx hid_monterey hid_microsoft hid_logitech ff_memless hid_gyration hid_ezkey hid_cypress hid_chicony hid_cherry hid_belkin hid_apple hid_a4tech sl811_hcd scsi_transport_fc scsi_tgt
2011-06-13T12:59:32.897989+02:00 (none) kernel: Pid: 20569, comm: splat Tainted: P 2.6.38-gentoo-r7 #4
2011-06-13T12:59:32.897991+02:00 (none) kernel: Call Trace:
2011-06-13T12:59:32.897996+02:00 (none) kernel: [] ? __schedule_bug+0x5c/0x60
2011-06-13T12:59:32.898000+02:00 (none) kernel: [] ? schedule+0x658/0x910
2011-06-13T12:59:32.898002+02:00 (none) kernel: [] ? cpumask_next_and+0x35/0x50
2011-06-13T12:59:32.898005+02:00 (none) kernel: [] ? select_idle_sibling+0x95/0x160
2011-06-13T12:59:32.898020+02:00 (none) kernel: [] ? schedule_timeout+0x1a5/0x200
2011-06-13T12:59:32.898023+02:00 (none) kernel: [] ? update_curr+0xc7/0x190
2011-06-13T12:59:32.898036+02:00 (none) kernel: [] ? wait_for_common+0xc0/0x150
2011-06-13T12:59:32.898040+02:00 (none) kernel: [] ? default_wake_function+0x0/0x10
2011-06-13T12:59:32.898045+02:00 (none) kernel: [] ? splat_atomic_work+0x0/0x300 [splat]
2011-06-13T12:59:32.898048+02:00 (none) kernel: [] ? wait_for_completion+0x18/0x20
2011-06-13T12:59:32.898060+02:00 (none) kernel: [] ? kthread_create+0x9c/0x120
2011-06-13T12:59:32.898065+02:00 (none) kernel: [] ? thread_generic_wrapper+0x0/0x90 [spl]
2011-06-13T12:59:32.898070+02:00 (none) kernel: [] ? kmem_alloc_debug+0xdb/0x120 [spl]
2011-06-13T12:59:32.898073+02:00 (none) kernel: [] ? __thread_create+0x108/0x150 [spl]
2011-06-13T12:59:32.898076+02:00 (none) kernel: [] ? splat_atomic_test1+0xdd/0x320 [splat]
2011-06-13T12:59:32.898079+02:00 (none) kernel: [] ? default_wake_function+0xd/0x10
2011-06-13T12:59:32.898082+02:00 (none) kernel: [] ? __wake_up+0x46/0x60
2011-06-13T12:59:32.898095+02:00 (none) kernel: [] ? autoremove_wake_function+0x0/0x40
2011-06-13T12:59:32.898099+02:00 (none) kernel: [] ? splat_unlocked_ioctl+0x604/0x6d0 [splat]
2011-06-13T12:59:32.898102+02:00 (none) kernel: [] ? __wake_up+0x46/0x60
2011-06-13T12:59:32.898116+02:00 (none) kernel: [] ? fsnotify+0x1c5/0x2d0
2011-06-13T12:59:32.898120+02:00 (none) kernel: [] ? do_vfs_ioctl+0x91/0x520
2011-06-13T12:59:32.898132+02:00 (none) kernel: [] ? sys_ioctl+0x89/0x90
2011-06-13T12:59:32.898137+02:00 (none) kernel: [] ? do_device_not_available+0x9/0x10
2011-06-13T12:59:32.898150+02:00 (none) kernel: [] ? system_call_fastpath+0x16/0x1b

Hope ths helps to improve ZFS on Linux. Ask me about any additional information as you find it appropriately.

[behlendorf]

Thanks for reporting the bug, I'm sure it will help improve things.

[behlendorf]

I should have noticed this earlier, but you are clearly using a preempt kernel which is not supported. I'm closing this issue and we'll just track the problem under the generic preempt support bug. Newer versions of ZFS won't let you build if CONFIG_PREEMPT is set so won't get bit by this again, once support does we added we'll drop the configure check.

System: Linux 2.6.38-gentoo-r7 #4 SMP PREEMPT x86_64 AMD Phenom(tm) 9950 Quad-Core Processor AuthenticAMD GNU/Linux