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Bug#330664: feed back: logs of crashing SMP kernel with QLA1040



On remote, I ran:
cat /dev/ttyS1 >>a24_0_5
cat a24_0_5 | tr -d "\000\007" |sed s_^$'\x20'\$_REMOVETHISLINE_g |sed s_^\$_REMOVETHISLINE_g | grep -v "REMOVETHISLINE" |uniq >a24_0_5.txt

and I ll past below the second file; otherwise, you d have pages or blank lines.

The system is Debian on Alpha EV56, AS4100, with one or more QLA1040 in; the ramdisk will thus load QLA12xx driver, and fail if the kernel is SMP, suceed if no SMP support.

Truncated the end, pages of "missing line number", maybe bad interraction of console on serial with the prompt.

******************************************* BEGIN

Linux version 2.6.15-1-alpha-smp (Debian 2.6.15-8) (waldi@debian.org) (gcc version 4.0.3 20060212 (prerelease) (Debian 4.0.2-9)) #1 SMP Mon Mar 6 13:51:42 UTC 2006 Booting GENERIC on Rawhide variation Dodge using machine vector Rawhide from SRM
Major Options: SMP MAGIC_SYSRQ
Command line: ro  root=/dev/md0 root=/dev/sdb3 console=ttyS1,9600
memcluster 0, usage 1, start        0, end      256
memcluster 1, usage 0, start      256, end   262139
memcluster 2, usage 1, start   262139, end   262144
freeing pages 256:2048
freeing pages 2965:262139
reserving pages 2965:2969
Initial ramdisk at: 0xfffffc007f6fe000 (7560874 bytes)
4096K Bcache detected; load hit latency 31 cycles, load miss latency 122 cycles
SMP: 2 CPUs probed -- cpu_present_mask = 3
Built 1 zonelists
Kernel command line: ro  root=/dev/md0 root=/dev/sdb3 console=ttyS1,9600
mcpcia_init_hoses: found 2 hoses
PID hash table entries: 4096 (order: 12, 131072 bytes)
HWRPB cycle frequency bogus.  Estimated 532810909 Hz
Using epoch = 2000
Turning on RTC interrupts.
Console: colour VGA+ 80x25
Dentry cache hash table entries: 524288 (order: 9, 4194304 bytes)
Inode-cache hash table entries: 262144 (order: 8, 2097152 bytes)
Memory: 2047424k/2097112k available (2026k kernel code, 46936k reserved, 673k data, 432k init)
Security Framework v1.0.0 initialized
SELinux:  Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 512
SMP starting up secondaries.
Brought up 2 CPUs
SMP: Total of 2 processors activated (2294.21 BogoMIPS).
checking if image is initramfs... it is
Freeing initrd memory: 7383k freed
NET: Registered protocol family 16
EISA bus registered
MCPCIA machine check: vector=0x660 pc=0xfffffc0001013480 code=0x2020000
pci: enabling save/restore of SRM state
machine check type: unknown
pc = [<fffffc0001013480>] ra = [<fffffc0001013494>] ps = 0000 Not tainted
pc is at cpu_idle+0x28/0x48
ra is at cpu_idle+0x3c/0x48
v0 = 0000000000000000  t0 = 0000000000000010  t1 = 0000000000000001
t2 = fffffc00014ff180  t3 = 000ee66dab0905d2  t4 = 0000000000000000
t5 = 0000000000000000  t6 = 0000000000000000  t7 = fffffc00012f8000
a0 = 0000000000000003  a1 = fffffc00012f8048  a2 = 0000000000000000
a3 = 0000000000000002  a4 = fffffc007e0dfbd8  a5 = 0000000000000000
t8 = 0000000000000000  t9 = 0000000098737af5  t10= 0000000000000000
t11= fffffc007fe33418  pv = fffffc000102dae0  at = 0000000000000000
MCPCIA machine check: vector=0x660 pc=0xfffffc000103c9cc code=0x2020000
machine check type: unknown
pc = [<fffffc000103c9cc>] ra = [<fffffc000103cad0>] ps = 0000 Not tainted
pc is at __do_softirq+0x78/0x124
ra is at do_softirq+0x58/0x70
v0 = 0000000000000007  t0 = fffffc00015a61c0  t1 = fffffc00015b6c00
t2 = 0000000000000100  t3 = fffffc00015b1d28  t4 = 0000000000000083
t5 = 0000000000000003  t6 = 000000000000007d  t7 = fffffc00012f8000
a0 = 0000000000000000  a1 = 0000000000000040  a2 = 0000000000000002
a3 = 0000000000000000  a4 = fffffc00012fba8c  a5 = 0000000000000001
t8 = 0000000000000000  t9 = fffffc000102ed10  t10= 0000000000004000
t11= 0000000000000080  pv = fffffc000103cbe8  at = 0000000000000000
gp = fffffc00015a7000  sp = fffffc00012fbaa8
  paltmp[0-1] =                7 fffffc00015a61c0
  paltmp[2-3] = fffffc00010113d0             4400
  paltmp[4-5] = fffffc00015b1d28               83
  paltmp[6-7] =                3 fffffc0001011350
  paltmp[8-9] = 1f1e171515020100 fffffc0001011630
  paltmp[10-11] = fffffc000103c9cc fffffc0001011190
  paltmp[12-13] = fffffc0001011210             6e80
  paltmp[14-15] =                0           110000
  paltmp[16-17] =      20306600001                0
  paltmp[18-19] =                0 fffffc00012fbc00
  paltmp[20-21] =          1000000 fffffc0001011290
  paltmp[22-23] = fffffc00015a7000          12f8000
  shadow[0-1] =                0                0
  shadow[2-3] =                0                0
  shadow[4-5] =     4b3600000000                0
  shadow[6-7] =                0                0
  Addr of excepting instruction  = fffffc000103c9cc
  Summary of arithmetic traps    =                0
  Exception mask                 =                0
  Base address for PALcode       =            14000
  Interrupt Status Reg           =           200000
  CURRENT SETUP OF EV5 IBOX      =       c164020000
  I-CACHE Reg Tag parity error   =                0
  D-CACHE error Reg              =                0
  Effective VA                   =                0
  Reason for D-stream            =            147d0
  EV5 SCache address             = ffffff00000190cf
  EV5 SCache TAG/Data parity     =                0
  EV5 BC_TAG_ADDR                = ffffff80010d0fff
  EV5 EI_ADDR: Phys addr of Xfer = ffffff007c00000f
  Fill Syndrome                  =             1caa
  EI_STAT reg                    = fffffff005ffffff
  LD_LOCK                        = ffffff000022c4df
IOD 0 Register Subpacket - Bridge Base Address       f9e0000000
  WHOAMI      =      6fa
  PCI_REV     =  6008332
  CAP_CTRL    = 46480ff1
  HAE_MEM     =        0
  HAE_IO      =        0
  INT_CTL     =        3
  INT_REG     =        0
  INT_MASK0   =   ff0000
  INT_MASK1   =        0
  MC_ERR0     = e0000000
  MC_ERR1     =    e88ff
  CAP_ERR     =        0
  PCI_ERR1    =        0
  MDPA_STAT   =        0
  MDPA_SYN    =        0
  MDPB_STAT   =        0
  MDPB_SYN    =        0
IOD 1 Register Subpacket - Bridge Base Address       fbe0000000
  WHOAMI      =      6fa
  PCI_REV     =  6000332
  CAP_CTRL    = 46480ff1
  HAE_MEM     =        0
  HAE_IO      =        0
  INT_CTL     =        3
  INT_REG     =        0
  INT_MASK0   =   fe0000
  INT_MASK1   =        0
  MC_ERR0     = e0000000
  MC_ERR1     =    e88ff
  CAP_ERR     =        0
  PCI_ERR1    =        0
  MDPA_STAT   =        0
  MDPA_SYN    =        0
  MDPB_STAT   =        0
  MDPB_SYN    =        0
smp_call_function_on_cpu: initial timeout -- trying long wait
smp_call_function_on_cpu: response 2.96 seconds into long wait
Linux Plug and Play Support v0.97 (c) Adam Belay
gp = fffffc00015a7000  sp = fffffc00012fbea8
No per-cpu room for modules.
audit: initializing netlink socket (disabled)
audit(1166555411.625:1): initialized
  paltmp[0-1] =                7 fffffc00015a61c0
  paltmp[2-3] = fffffc00010113d0             4400
  paltmp[4-5] = fffffc00015b1d28               83
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 8192 bytes)
  paltmp[6-7] =                3 fffffc0001011350
  paltmp[8-9] = 1f1e171515020100 fffffc0001011630
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
  paltmp[10-11] = fffffc000103c9cc fffffc0001011190
io scheduler cfq registered
isapnp: Scanning for PnP cards...
  paltmp[12-13] = fffffc0001011210             6e80
  paltmp[14-15] =                0           110000
  paltmp[16-17] =      20306600001                0
isapnp: No Plug & Play device found
  paltmp[18-19] =                0 fffffc00012fbc00
  paltmp[20-21] =          1000000 fffffc0001011290
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
mice: PS/2 mouse device common for all mice
EISA: Probing bus 0 at 0000:00:01.0
EISA: Mainboard DEC6400 detected.
Cannot allocate resource for EISA slot 8
EISA: Detected 0 cards.
  paltmp[22-23] = fffffc00015a7000          12f8000
NET: Registered protocol family 2
  shadow[0-1] =                0                0
  shadow[2-3] =                0                0
  shadow[4-5] =     4b3600000000                0
  shadow[6-7] =                0                0
  Addr of excepting instruction  = fffffc000103c9cc
  Summary of arithmetic traps    =                0
IP route cache hash table entries: 131072 (order: 7, 1048576 bytes)
  Exception mask                 =                0
  Base address for PALcode       =            14000
TCP established hash table entries: 524288 (order: 10, 8388608 bytes)
TCP bind hash table entries: 65536 (order: 7, 1048576 bytes)
TCP: Hash tables configured (established 524288 bind 65536)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 8
NET: Registered protocol family 20
  Interrupt Status Reg           =           200000
  CURRENT SETUP OF EV5 IBOX      =       c164020000
  I-CACHE Reg Tag parity error   =                0
  D-CACHE error Reg              =                0
  Effective VA                   =                0
  Reason for D-stream            =            147d0
  EV5 SCache address             = ffffff00000190cf
  EV5 SCache TAG/Data parity     =                0
  EV5 BC_TAG_ADDR                = ffffff80010d0fff
input: AT Translated Set 2 keyboard as /class/input/input0
  EV5 EI_ADDR: Phys addr of Xfer = ffffff007c00000f
  Fill Syndrome                  =             1caa
  EI_STAT reg                    = fffffff005ffffff
  LD_LOCK                        = ffffff000022c4df
IOD 0 Register Subpacket - Bridge Base Address       f9e0000000
  WHOAMI      =      6fa
  PCI_REV     =  6008332
  CAP_CTRL    = 46480ff1
  HAE_MEM     =        0
  HAE_IO      =        0
  INT_CTL     =        3
  INT_REG     =        0
  INT_MASK0   =   ff0000
  INT_MASK1   =        0
  MC_ERR0     = e0000000
  MC_ERR1     =    e88ff
  CAP_ERR     =        0
  PCI_ERR1    =        0
  MDPA_STAT   =        0
  MDPA_SYN    =        0
  MDPB_STAT   =        0
  MDPB_SYN    =        0
IOD 1 Register Subpacket - Bridge Base Address       fbe0000000
  WHOAMI      =      6fa
  PCI_REV     =  6000332
  CAP_CTRL    = 46480ff1
  HAE_MEM     =        0
  HAE_IO      =        0
BUG: soft lockup detected on CPU#0!
pc = [<fffffc0001036188>] ra = [<fffffc0001036180>] ps = 0004 Not tainted
pc is at release_console_sem+0x1b8/0x270
ra is at release_console_sem+0x1b0/0x270
v0 = 0000000000000007  t0 = 0000000000000000  t1 = 0000000000000000
t2 = 0000000000000000  t3 = 0000000000000000  t4 = fffffc00015b2b18
t5 = 0000000000002a89  t6 = ffffffffffffffff  t7 = fffffc00012f8000
a0 = 0000000000000004  a1 = 0000000000002a89  a2 = ffffffffffffffff
a3 = 0000000000000010  a4 = fffffffffffffffd  a5 = 0000000000000000
t8 = 0000000000000015  t9 = fffffc000111f9b0  t10= 0000000000000000
t11= 0000000000000010  pv = fffffc0001020e74  at = 0000000000000000
gp = fffffc00015a7000  sp = fffffc00012fbc50
  INT_CTL     =        3
  INT_REG     =        0
  INT_MASK0   =   fe0000
  INT_MASK1   =        0
  MC_ERR0     = e0000000
  MC_ERR1     =    e88ff
  CAP_ERR     =        0
  PCI_ERR1    =        0
  MDPA_STAT   =        0
  MDPA_SYN    =        0
  MDPB_STAT   =        0
  MDPB_SYN    =        0
Freeing unused kernel memory: 432k freed
freed
Loading, please wait...
freed
Loading, please wait...
freed
Loading, please wait...
freed
md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 4.39
md: raid0 personality registered as nr 2
md: raid1 personality registered as nr 3
raid5: measuring checksumming speed
   8regs     :  1007.616 MB/sec
Begi   32regs    :   753.664 MB/sec
n: Loading essen   alpha     :  1859.584 MB/sec
tial drivers...    alpha prefetch:  1613.824 MB/sec
raid5: using function: alpha (1859.584 MB/sec)
...
md: raid5 personality registered as nr 4
raid6: int64x1    204 MB/s
raid6: int64x2    300 MB/s
raid6: int64x4    388 MB/s
raid6: int64x8    328 MB/s
raid6: using algorithm int64x4 (388 MB/s)
md: raid6 personality registered as nr 8
Loading, please wait.Could not allocate 16 bytes percpu data
..
sd_mod: Unknown symbol scsi_print_sense_hdr
sd_mod: Unknown symbol scsi_mode_sense
freed
sd_mod: Unknown symbol scsi_device_get
sd_mod: Unknown symbol scsi_setup_blk_pc_cmnd
sd_mod: Unknown symbol scsi_get_sense_info_fld
sd_mod: Unknown symbol scsicam_bios_param
sd_mod: Unknown symbol scsi_command_normalize_sense
X_MD_DEsd_mod: Unknown symbol scsi_test_unit_ready
VS=256, MD_SB_DIsd_mod: Unknown symbol scsi_block_when_processing_errors
ttyS1: 1 input overrun(s)
SKS=27
mdsd_mod: Unknown symbol scsi_register_driver
: bitmap ver
sd_mod: Unknown symbol scsi_ioctl
sd_mod: Unknown symbol scsi_nonblockable_ioctl
sd_mod: Unknown symbol scsi_device_put
sd_mod: Unknown symbol scsi_logging_level
regisd_mod: Unknown symbol scsi_execute_req
stered as nr
sd_mod: Unknown symbol scsi_print_sense
sd_mod: Unknown symbol scsi_io_completion
sd_mod: Unknown symbol scsi_set_medium_removal
md: rai
raid5: measuring checksumming speed
6 MB/sec
4 MB/sec
n: Loading essen   tial drivers...    alpha prefetsing function: a
registered as nr 4
WARNING: Error inserting scsi_mod (/lib/modules/2.6.15-1-alpha-smp/kernel/drivers/scsi/scsi_mod.ko): Cannot allocate memory
t64x1    204 MB/
64x4    388 MB/s
rithm int64x4 (38
wait.Could not a_mod: Unknown synt_sense_hdr
mbol scsi_mode_sod: Unknown symb
sd_mod: Unknown
_fld
l scsicam_bios_pd: Unknown symboFATAL: Error inserting sd_mod (/lib/modules/2.6.15-1-alpha-smp/kernel/drivers/scsi/sd_mod.ko): Unknown symbol in module, or unknown parameter (see dmesg)
X_MD_DEsd_moSB_DIsd_mod: Unknown symbol scsi_block_when_processing_errors
ttyS1:Done.
 1 input overrun(s)
SKS=27
mdsBegin: Running /scripts/init-premount ...
d_mod: Unknown symbol scsi_register_driver
: bitmap ver
sd_mod: Unknown symbol scsi_ioctl
sd_mod: Unknown symbol scsi_nonblockable_ioctl
sd_mod: Unknown symbol scsi_device_put
sd_mod: Unknown symbol scsi_logging_level
regisd_mod: Unknown symbol scsi_execute_req
stered as nr
sd_mod: Unknown symbol scsi_print_sense
sd_mod: Unknown symbol scsi_io_completion
sd_mod: Unknown symbol scsi_set_medium_removal
md: rai
raid5: measuring checksumming speed
6 MB/sec
4 MB/sec
n: Loading essen   tial drivers...    alpha prefetsing function: a
registered as nr 4
WARNING: Error inserting scsi_mod (/lib/modules/2.6.15-1-alpha-smp/kernel/drivers/scsi/scsi_mod.ko): Cannot allocate memory
t64x1    204 MB/
3c59x: Donald Becker and others. www.scyld.com/network/vortex.html
0000:00:03.0: 3Com PCI 3c905B Cyclone 100baseTx at fffffcf902241000. Vers LK1.1.19
64x4    388 MB/s
Linux Tulip driver version 1.1.13 (May 11, 2002)
Could not allocate 16 bytes percpu data
tulip0:  EEPROM default media type Autosense.
tulip0:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.
tulip0:  MII transceiver #5 config 0000 status 7809 advertising 01e1.
eth1: Digital DS21140 Tulip rev 34 at fffffcfb80009000, 00:00:F8:10:48:36, IRQ 44.
Could not allocate 16 bytes percpu data
scsi_transport_spi: Unknown symbol scsi_is_sdev_device
ritscsi_transport_spi: Unknown symbol scsi_device_get
hm int64x4 (38
scsi_transport_spi: Unknown symbol scsi_is_target_device
scsi_transport_spi: Unknown symbol scsi_target_quiesce
scsi_transport_spi: Unknown symbol scsi_device_set_state
scsi_transport_spi: Unknown symbol scsi_device_put
scsi_transport_spi: Unknown symbol scsi_is_host_device
scsi_transport_spi: Unknown symbol scsi_device_quiesce
scsi_transport_spi: Unknown symbol scsi_execute
scsi_transport_spi: Unknown symbol scsi_target_resume
wascsi_transport_spi: Unknown symbol scsi_normalize_sense
it.Could not a_mttyS1: 2 input overrun(s)
od: Unknown syntCould not allocate 16 bytes percpu data
_sense_hdr
sym53c8xx: Unknown symbol scsi_remove_host
sym53c8xx: Unknown symbol spi_display_xfer_agreement
sym53c8xx: Unknown symbol spi_release_transport
sym53c8xx: Unknown symbol scsi_host_put
sym53c8xx: Unknown symbol scsi_scan_host
sym53c8xx: Unknown symbol scsi_add_host
sym53c8xx: Unknown symbol scsi_is_host_device
sym53c8xx: Unknown symbol scsi_adjust_queue_depth
sym53c8xx: Unknown symbol spi_attach_transport
sym53c8xx: Unknown symbol scsi_host_alloc
sym53c8xx: Unknown symbol spi_dv_device
qla1280: Unknown symbol scsi_remove_host
qla1280: Unknown symbol scsi_host_put
qla1280: Unknown symbol scsi_scan_host
qla1280: Unknown symbol scsi_add_host
qla1280: Unknown symbol scsi_adjust_queue_depth
qla1280: Unknown symbol scsi_host_alloc
mbol sscsi_transport_spi: Unknown symbol scsi_is_sdev_device
scsi_transport_spi: Unknown symbol scsi_device_get
scsi_transport_spi: Unknown symbol scsi_is_target_device
scsi_transport_spi: Unknown symbol scsi_target_quiesce
scsi_transport_spi: Unknown symbol scsi_device_set_state
scsi_transport_spi: Unknown symbol scsi_device_put
scsi_transport_spi: Unknown symbol scsi_is_host_device
scsi_transport_spi: Unknown symbol scsi_device_quiesce
scsi_transport_spi: Unknown symbol scsi_execute
scsi_transport_spi: Unknown symbol scsi_target_resume
scsi_transport_spi: Unknown symbol scsi_normalize_sense
csi_mode_sod: Unsym53c8xx: Unknown symbol scsi_remove_host
sym53c8xx: Unknown symbol spi_display_xfer_agreement
sym53c8xx: Unknown symbol spi_release_transport
sym53c8xx: Unknown symbol scsi_host_put
sym53c8xx: Unknown symbol scsi_scan_host
sym53c8xx: Unknown symbol scsi_add_host
sym53c8xx: Unknown symbol scsi_is_host_device
sym53c8xx: Unknown symbol scsi_adjust_queue_depth
sym53c8xx: Unknown symbol spi_attach_transport
sym53c8xx: Unknown symbol scsi_host_alloc
sym53c8xx: Unknown symbol spi_dv_device
known symb
Could not allocate 16 bytes percpu data
sd_mod: UnknowCould not allocate 16 bytes percpu data
n
scsi_transport_spi: Unknown symbol scsi_is_sdev_device
scsi_transport_spi: Unknown symbol scsi_device_get
scsi_transport_spi: Unknown symbol scsi_is_target_device
scsi_transport_spi: Unknown symbol scsi_target_quiesce
scsi_transport_spi: Unknown symbol scsi_device_set_state
scsi_transport_spi: Unknown symbol scsi_device_put
scsi_transport_spi: Unknown symbol scsi_is_host_device
scsi_transport_spi: Unknown symbol scsi_device_quiesce
scsi_transport_spi: Unknown symbol scsi_execute
scsi_transport_spi: Unknown symbol scsi_target_resume
scsi_transport_spi: Unknown symbol scsi_normalize_sense
sym53c8xx: Unknown symbol scsi_remove_host
sym53c8xx: Unknown symbol spi_display_xfer_agreement
sym53c8xx: Unknown symbol spi_release_transport
sym53c8xx: Unknown symbol scsi_host_put
sym53c8xx: Unknown symbol scsi_scan_host
sym53c8xx: Unknown symbol scsi_add_host
sym53c8xx: Unknown symbol scsi_is_host_device
sym53c8xx: Unknown symbol scsi_adjust_queue_depth
sym53c8xx: Unknown symbol spi_attach_transport
sym53c8xx: Unknown symbol scsi_host_alloc
sym53c8xx: Unknown symbol spi_dv_device
qla1280: Unknown symbol scsi_remove_host
qla1280: Unknown symbol scsi_host_put
qla1280: Unknown symbol scsi_scan_host
qla1280: Unknown symbol scsi_add_host
qla1280: Unknown symbol scsi_adjust_queue_depth
qla1280: Unknown symbol scsi_host_alloc
_fld
l scsicam_bios_pd: Unknown symboFATAL: Error inserting sd_mod (/lib/modules/2.6.15-1-alpha-smp/kernel/drivers/scsi/sd_mod.ko): Unknown symbol in module, or unknown parameter (see dmesg) X_MD_DEsd_moSB_DIsd_mod: Unknown symbol scsi_block_when_prUniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ocessing_errors
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ttyS1:Done.
 1 input overrun(s)
SKS=27
mdsBegin: Running /scripts/init-premount ...
d_mod: Unknown symbol scsi_register_driver
: bitmap ver
sd_mod: Unknown symbol scsi_ioctl
sd_mod: Unknown symbol scsi_nonblockable_ioctl
Done.
Begin: Mounting root file system... ...
Begin: Running /scripts/local-top ...
Done.
Begin: Waiting for root file system... ...
^G
missing line number
*
*^G^G^G^^G
missing line number
*
*missing line number
missing line number
*
**
missing line number
*

******************************************* END

Cheers.

--
>o_/ DEMAINE Benoit-Pierre (aka DoubleHP) http://benoit.demaine.info/
If computing were an exact science, IT engineers would not havework \_o<

"So all that's left, Is the proof that love's not only blind but deaf."
(FAKE TALES OF SAN FRANCISCO, Arctic Monkeys)



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