-- Soft lockup was detected but no measures were taken. Dump
   successfully triggered using the Sys Rq key.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
nexus:~# modprobe dtt Kernel Hooks Interface installed. 8 compiled-in crash points registered
Crash dump test tools' module successfully loaded
nexus:~# /home/fewy/tests/kexec-tools-1.101/objdir/build/sbin/kexec -p /home/fewy/tests/linux-2.6.17-rc4-cptr/vmlinux --args-linux --append="root=/dev/sda1 init 1 irqpoll console=ttyS0,38400 console=tty0"
nexus:~# ttutils add -p IDE_CORE_CP -n 112
nexus:~# ttutils set -p IDE_CORE_CP -t loop [crash point set] name:IDE_CORE_CP type:loop count:10
nexus:~#
TRIG_LOOP
BUG: soft lockup detected on CPU#1!
 <c01389c0> softlockup_tick+0x9c/0xb9   <c0124639> update_process_times+0x2f/0x75
 <c010f9cf> smp_apic_timer_interrupt+0x5f/0x70   <c02bad61> lock_kernel+0x1c/0x2d
 <c01036ec> apic_timer_interrupt+0x1c/0x24   <c02bad61> lock_kernel+0x1c/0x2d
 <c01a4627> reiserfs_dirty_inode+0x37/0x98   <c017975c> __mark_inode_dirty+0x2d/0x180
 <c017975c> __mark_inode_dirty+0x2d/0x180   <c0120802> current_fs_time+0x58/0x86 <c017098b> file_update_time+0x88/0xa1   <c019ef35> reiserfs_file_write+0x372/0x1d59
 <c01cfd6e> __next_cpu+0x22/0x31   <c026411b> memcpy_toiovec+0x4c/0x63
 <c02b74ad> unix_write_space+0x14/0x87   <c0261730> sock_wfree+0x48/0x4c
 <c02622da> kfree_skbmem+0x40/0x99   <c02b642f> unix_dgram_recvmsg+0x192/0x25c
 <c025eaef> sock_recvmsg+0xec/0x110   <c0116a0c> find_busiest_group+0x154/0x330
 <c012e070> autoremove_wake_function+0x0/0x4b   <c016b210> core_sys_select+0x216/0x310
 <c0120380> getnstimeofday+0x14/0x37   <c0120802> current_fs_time+0x58/0x86
 <c025ee10> sys_recvfrom+0xd6/0x14d   <c017098b> file_update_time+0x88/0xa1
 <c0164388> pipe_writev+0x231/0x512   <c01585d6> do_readv_writev+0x276/0x2a9
 <c019ebc3> reiserfs_file_write+0x0/0x1d59   <c01261be> sigprocmask+0x58/0xc2
 <c01586a6> sys_writev+0x4b/0xa7   <c0102c2b> sysenter_past_esp+0x54/0x75
BUG: soft lockup detected on CPU#0!
 <c01389c0> softlockup_tick+0x9c/0xb9   <c0124639> update_process_times+0x2f/0x75
 <c010f9cf> smp_apic_timer_interrupt+0x5f/0x70   <f8ac7495> cpoint_default_exit+0x61/0x8d [dtt]
 <c01036ec> apic_timer_interrupt+0x1c/0x24   <f8ac7495> cpoint_default_exit+0x61/0x8d [dtt]
 <f8977ef5> IDE_CORE_CP_hook+0x427/0x48a [ide_core]   <c016edd8> dput+0x94/0x13a <c016fdb3> __d_lookup+0x8d/0xf5   <c016edd8> dput+0x94/0x13a
 <f8a39e1f> idecd_ioctl+0x52/0x1af [ide_cd]   <c0166cc7> __link_path_walk+0x900/0xee5
 <c0170a06> touch_atime+0x62/0xae   <c01c6be2> blkdev_driver_ioctl+0x68/0x71
 <c01c6f0f> blkdev_ioctl+0x2ce/0x82f   <c01d0717> kobject_get+0x17/0x1e
 <c01c86ed> exact_lock+0xf/0x18   <c022712b> kobj_lookup+0x139/0x18e
 <f8a39d37> idecd_open+0x71/0xc1 [ide_cd]   <c016014f> do_open+0x259/0x326
 <c016021c> blkdev_open+0x0/0x5d   <c016023f> blkdev_open+0x23/0x5d
 <c015744a> __dentry_open+0xea/0x208   <c015764e> do_filp_open+0x48/0x4f
 <c015f45e> block_ioctl+0x2b/0x2f   <c0169a17> do_ioctl+0x27/0x7b
 <c0169abe> vfs_ioctl+0x53/0x2d6   <c0157723> do_sys_open+0xce/0xe5
 <c0169d7d> sys_ioctl+0x3c/0x5b   <c0102c2b> sysenter_past_esp+0x54/0x75
BUG: soft lockup detected on CPU#2!
 <c01389c0> softlockup_tick+0x9c/0xb9   <c0124639> update_process_times+0x2f/0x75
 <c010f9cf> smp_apic_timer_interrupt+0x5f/0x70   <c02bad61> lock_kernel+0x1c/0x2d
 <c01036ec> apic_timer_interrupt+0x1c/0x24   <c02bad61> lock_kernel+0x1c/0x2d
 <c01a44b0> reiserfs_sync_fs+0x20/0x72   <c02b93b3> schedule+0x44d/0xd4c
 <c01a4519> reiserfs_write_super+0x17/0x1b   <c015ea69> sync_supers+0x94/0xe6
 <c01402a5> wb_kupdate+0x28/0xf1   <c0140e50> pdflush+0x10c/0x1bc
 <c014027d> wb_kupdate+0x0/0xf1   <c012df5e> kthread+0xe6/0xea
 <c0140d44> pdflush+0x0/0x1bc   <c012de78> kthread+0x0/0xea
 <c0100e55> kernel_thread_helper+0x5/0xb
BUG: soft lockup detected on CPU#0!
 <c01389c0> softlockup_tick+0x9c/0xb9   <c0124639> update_process_times+0x2f/0x75
 <c010f9cf> smp_apic_timer_interrupt+0x5f/0x70   <f8ac7495> cpoint_default_exit+0x61/0x8d [dtt]
 <c01036ec> apic_timer_interrupt+0x1c/0x24   <f8ac7495> cpoint_default_exit+0x61/0x8d [dtt]
 <f8977ef5> IDE_CORE_CP_hook+0x427/0x48a [ide_core]   <c016edd8> dput+0x94/0x13a <c016fdb3> __d_lookup+0x8d/0xf5   <c016edd8> dput+0x94/0x13a
 <f8a39e1f> idecd_ioctl+0x52/0x1af [ide_cd]   <c0166cc7> __link_path_walk+0x900/0xee5
 <c0170a06> touch_atime+0x62/0xae   <c01c6be2> blkdev_driver_ioctl+0x68/0x71
 <c01c6f0f> blkdev_ioctl+0x2ce/0x82f   <c01d0717> kobject_get+0x17/0x1e
 <c01c86ed> exact_lock+0xf/0x18   <c022712b> kobj_lookup+0x139/0x18e
 <f8a39d37> idecd_open+0x71/0xc1 [ide_cd]   <c016014f> do_open+0x259/0x326
 <c016021c> blkdev_open+0x0/0x5d   <c016023f> blkdev_open+0x23/0x5d
 <c015744a> __dentry_open+0xea/0x208   <c015764e> do_filp_open+0x48/0x4f
 <c015f45e> block_ioctl+0x2b/0x2f   <c0169a17> do_ioctl+0x27/0x7b
 <c0169abe> vfs_ioctl+0x53/0x2d6   <c0157723> do_sys_open+0xce/0xe5
 <c0169d7d> sys_ioctl+0x3c/0x5b   <c0102c2b> sysenter_past_esp+0x54/0x75
BUG: soft lockup detected on CPU#1!
 <c01389c0> softlockup_tick+0x9c/0xb9   <c0124639> update_process_times+0x2f/0x75
 <c010f9cf> smp_apic_timer_interrupt+0x5f/0x70   <c02bad61> lock_kernel+0x1c/0x2d
 <c01036ec> apic_timer_interrupt+0x1c/0x24   <c02bad61> lock_kernel+0x1c/0x2d
 <c01a4627> reiserfs_dirty_inode+0x37/0x98   <c017975c> __mark_inode_dirty+0x2d/0x180
 <c017975c> __mark_inode_dirty+0x2d/0x180   <c0120802> current_fs_time+0x58/0x86 <c017098b> file_update_time+0x88/0xa1   <c019ef35> reiserfs_file_write+0x372/0x1d59
 <c01cfd6e> __next_cpu+0x22/0x31   <c026411b> memcpy_toiovec+0x4c/0x63
 <c02b74ad> unix_write_space+0x14/0x87   <c0261730> sock_wfree+0x48/0x4c
 <c02622da> kfree_skbmem+0x40/0x99   <c02b642f> unix_dgram_recvmsg+0x192/0x25c
 <c025eaef> sock_recvmsg+0xec/0x110   <c0116a0c> find_busiest_group+0x154/0x330
 <c012e070> autoremove_wake_function+0x0/0x4b   <c016b210> core_sys_select+0x216/0x310
 <c0120380> getnstimeofday+0x14/0x37   <c0120802> current_fs_time+0x58/0x86
 <c025ee10> sys_recvfrom+0xd6/0x14d   <c017098b> file_update_time+0x88/0xa1
 <c0164388> pipe_writev+0x231/0x512   <c01585d6> do_readv_writev+0x276/0x2a9
 <c019ebc3> reiserfs_file_write+0x0/0x1d59   <c01261be> sigprocmask+0x58/0xc2
 <c01586a6> sys_writev+0x4b/0xa7   <c0102c2b> sysenter_past_esp+0x54/0x75
BUG: soft lockup detected on CPU#2!
 <c01389c0> softlockup_tick+0x9c/0xb9   <c0124639> update_process_times+0x2f/0x75
 <c010f9cf> smp_apic_timer_interrupt+0x5f/0x70   <c02bad61> lock_kernel+0x1c/0x2d
 <c01036ec> apic_timer_interrupt+0x1c/0x24   <c02bad61> lock_kernel+0x1c/0x2d
 <c01a44b0> reiserfs_sync_fs+0x20/0x72   <c02b93b3> schedule+0x44d/0xd4c
 <c01a4519> reiserfs_write_super+0x17/0x1b   <c015ea69> sync_supers+0x94/0xe6
 <c01402a5> wb_kupdate+0x28/0xf1   <c0140e50> pdflush+0x10c/0x1bc
 <c014027d> wb_kupdate+0x0/0xf1   <c012df5e> kthread+0xe6/0xea
 <c0140d44> pdflush+0x0/0x1bc   <c012de78> kthread+0x0/0xea
 <c0100e55> kernel_thread_helper+0x5/0xb
SysRq : Trigger a crashdump
Linux version 2.6.17-rc4-cptr (fewy@nexus) (gcc version 4.0.4 20060507 (prerelease) (Debian 4.0.3-3)) #1 PREEMPT Tue May 16 15:06:50 JST 2006