-- The hang was not detected. Dump process 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 set -p FS_DEVRW -t exception [crash point set] name:FS_DEVRW type:exception count:10 BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000
 printing eip:
f8ac7497
*pde = 00000000
Oops: 0002 [#1]
SMP
Modules linked in: dtt hook ipv6 ext3 jbd rtc eth1394 hw_random ide_cd cdrom ohci1394 ehci_hcd uhci_hcd piix psmouse snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm snd_timer i2c_i801 ieee1394 ide_core evdev snd soundcore snd_page_alloc usbcore
CPU:    0
EIP:    0060:[<f8ac7497>]    Not tainted VLI
EFLAGS: 00010297   (2.6.17-rc4-np-dtt #1)
EIP is at cpoint_default_exit+0x63/0x8d [dtt]
eax: 00000004   ebx: f7de8484   ecx: f76243e0   edx: 00000282
esi: f7cddb7c   edi: 00000000   ebp: 00000000   esp: f7cdda64
ds: 007b   es: 007b   ss: 0068
Process syslogd (pid: 1587, threadinfo=f7cdd000 task=f7d0f070)
Stack: <0>f7de8484 c015ac70 c03027a0 00000000 002980b4 f75f98c4 f7d3d800 f7cddbc4
       c01ad8cf 00000000 00000001 f7cddb7c f7cddbe8 00000000 00000000 f7d42dc0
       f7cddb90 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Call Trace:
 <c015ac70> FS_DEVRW_hook+0x9d/0xa2   <c01ad8cf> search_by_key+0x15f/0x113b
 <c013fb47> __alloc_pages+0x53/0x2cf   <c012e191> remove_wait_queue+0xc/0x34
 <c016a23e> free_poll_entry+0xe/0x16   <c01b2bae> get_cnode+0x1d/0x70
 <c019a4a8> inode2sd+0x112/0x131   <c01ad2a0> pathrelse+0x2f/0x48
 <c019a5f3> reiserfs_update_sd_size+0x12c/0x32a   <c01b7675> journal_begin+0x6c/0xff
 <c01a4663> reiserfs_dirty_inode+0x73/0x98   <c017975c> __mark_inode_dirty+0x2d/0x180
 <c01452da> kmap_high+0x1a/0x1f0   <c0144e6b> page_address+0x87/0x8d
 <c019de33> reiserfs_submit_file_region_for_write+0x20c/0x29f   <c019f401> reiserfs_file_write+0x83e/0x1d59
 <c01cfd6e> __next_cpu+0x22/0x31   <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   <c0106179> do_gettimeofday+0x19/0xc6
 <c025ee10> sys_recvfrom+0xd6/0x14d   <c01d277c> rb_insert_color+0x78/0xcf
 <c0130b41> enqueue_hrtimer+0x64/0x9b   <c0131053> TIMERADD_hook+0x0/0x4e
 <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
Code: 24 70 82 ac f8 e8 d7 51 65 c7 31 c0 83 c4 04 c3 31 c0 e8 f9 fb ff ff 31 c0 83 c4 04 c3 c7 04 24 00 85 ac f8 e8 b8 51 65 c7 eb fe <c7> 05 00 00 00 00 00 00 00 00 31 c0 83 c4 04 c3 c7 04 24 e2 84
EIP: [<f8ac7497>] cpoint_default_exit+0x63/0x8d [dtt] SS:ESP 0068:f7cdda64
 BUG: warning at kernel/exit.c:855/do_exit()
 <c011e500> do_exit+0x833/0x8ae   <c0104475> do_simd_coprocessor_error+0x0/0x181 <c0113a4e> do_page_fault+0x3a6/0x6c0   <c01136a8> do_page_fault+0x0/0x6c0
 <c01037b7> error_code+0x4f/0x54   <f8ac7497> cpoint_default_exit+0x63/0x8d [dtt]
 <c015ac70> FS_DEVRW_hook+0x9d/0xa2   <c01ad8cf> search_by_key+0x15f/0x113b
 <c013fb47> __alloc_pages+0x53/0x2cf   <c012e191> remove_wait_queue+0xc/0x34
 <c016a23e> free_poll_entry+0xe/0x16   <c01b2bae> get_cnode+0x1d/0x70
 <c019a4a8> inode2sd+0x112/0x131   <c01ad2a0> pathrelse+0x2f/0x48
 <c019a5f3> reiserfs_update_sd_size+0x12c/0x32a   <c01b7675> journal_begin+0x6c/0xff
 <c01a4663> reiserfs_dirty_inode+0x73/0x98   <c017975c> __mark_inode_dirty+0x2d/0x180
 <c01452da> kmap_high+0x1a/0x1f0   <c0144e6b> page_address+0x87/0x8d
 <c019de33> reiserfs_submit_file_region_for_write+0x20c/0x29f   <c019f401> reiserfs_file_write+0x83e/0x1d59
 <c01cfd6e> __next_cpu+0x22/0x31   <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   <c0106179> do_gettimeofday+0x19/0xc6
 <c025ee10> sys_recvfrom+0xd6/0x14d   <c01d277c> rb_insert_color+0x78/0xcf
 <c0130b41> enqueue_hrtimer+0x64/0x9b   <c0131053> TIMERADD_hook+0x0/0x4e
 <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
nexus:~#