Hi, I am the author if a kernel module that makes use of the netfilter hooks in the kernel and have come across a rather strange issue while running on the 64 bit kernel. On calling nf_reinject with an entry supplied via the input hook, the kernel panics resulting in a full system crash. This does not occur on 32 bit machines. Kernel Version: Linux version 2.6.32-trunk-amd64 (Debian 2.6.32-5) (ben@xxxxxxxxxxxxxxx) (gcc version 4.3.4 (Debian 4.3.4-6) ) #1 SMP Sun Jan 10 22:40:40 UTC 2010 Attached is a small test application that replicates the problem and the machine specs for my dev vm. Worth noting is that this bug is not independent to one specific machine. More information can be supplied as needed -- Michael Lawson
/proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Intel(R) Xeon(R) CPU W3520 @ 2.67GHz
stepping : 5
cpu MHz : 2659.615
cache size : 8192 KB
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology tsc_reliable nonstop_tsc aperfmperf pni ssse3 cx16 sse4_1 sse4_2 popcnt hypervisor lahf_lm ida
bogomips : 5319.23
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Intel(R) Xeon(R) CPU W3520 @ 2.67GHz
stepping : 5
cpu MHz : 2659.615
cache size : 8192 KB
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology tsc_reliable nonstop_tsc aperfmperf pni ssse3 cx16 sse4_1 sse4_2 popcnt hypervisor lahf_lm ida
bogomips : 5319.45
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
root@debian2:~# cat /proc/modules
loop 11767 0 - Live 0xffffffffa02c5000
snd_ens1371 16170 0 - Live 0xffffffffa02ba000
gameport 7416 1 snd_ens1371, Live 0xffffffffa02b2000
snd_rawmidi 15291 1 snd_ens1371, Live 0xffffffffa02a7000
snd_seq_device 4477 1 snd_rawmidi, Live 0xffffffffa02a0000
snd_ac97_codec 99170 1 snd_ens1371, Live 0xffffffffa027c000
ac97_bus 1086 1 snd_ac97_codec, Live 0xffffffffa026e000
snd_pcm 60615 2 snd_ens1371,snd_ac97_codec, Live 0xffffffffa0253000
snd_timer 15502 1 snd_pcm, Live 0xffffffffa0248000
parport_pc 18839 0 - Live 0xffffffffa023c000
snd 44718 6 snd_ens1371,snd_rawmidi,snd_seq_device,snd_ac97_codec,snd_pcm,snd_timer, Live 0xffffffffa0226000
soundcore 4598 1 snd, Live 0xffffffffa021e000
serio_raw 3752 0 - Live 0xffffffffa0218000
parport 27938 1 parport_pc, Live 0xffffffffa0209000
i2c_piix4 8328 0 - Live 0xffffffffa0201000
container 2389 0 - Live 0xffffffffa01fb000
snd_page_alloc 6217 1 snd_pcm, Live 0xffffffffa01f3000
ac 2192 0 - Live 0xffffffffa01ed000
shpchp 25928 0 - Live 0xffffffffa01df000
processor 29479 0 - Live 0xffffffffa01cf000
psmouse 49521 0 - Live 0xffffffffa01ba000
pcspkr 1699 0 - Live 0xffffffffa01b4000
evdev 7336 2 - Live 0xffffffffa008e000
i2c_core 15584 1 i2c_piix4, Live 0xffffffffa00fa000
pci_hotplug 21171 1 shpchp, Live 0xffffffffa011c000
ext3 106454 1 - Live 0xffffffffa0198000
jbd 37037 1 ext3, Live 0xffffffffa018c000
mbcache 4970 1 ext3, Live 0xffffffffa007f000
sd_mod 29673 3 - Live 0xffffffffa0182000
ide_cd_mod 24744 0 - Live 0xffffffffa00b1000
crc_t10dif 1276 1 sd_mod, Live 0xffffffffa005e000
cdrom 29399 1 ide_cd_mod, Live 0xffffffffa0030000
ide_pci_generic 2788 0 - Live 0xffffffffa0014000
ata_generic 2983 0 - Live 0xffffffffa0005000
libata 131655 1 ata_generic, Live 0xffffffffa014c000
uhci_hcd 18457 0 - Live 0xffffffffa0145000
mptspi 11169 2 - Live 0xffffffffa013c000
mptscsih 15832 1 mptspi, Live 0xffffffffa0131000
ehci_hcd 30578 0 - Live 0xffffffffa0123000
mptbase 48286 2 mptspi,mptscsih, Live 0xffffffffa010e000
intel_agp 25521 1 - Live 0xffffffffa0100000
floppy 49087 0 - Live 0xffffffffa00ec000
scsi_transport_spi 18774 1 mptspi, Live 0xffffffffa00e0000
e1000 85549 0 - Live 0xffffffffa00c1000
usbcore 121687 3 uhci_hcd,ehci_hcd, Live 0xffffffffa0091000
nls_base 6377 1 usbcore, Live 0xffffffffa008a000
piix 4568 0 - Live 0xffffffffa0083000
agpgart 24733 1 intel_agp, Live 0xffffffffa0073000
button 4634 0 - Live 0xffffffffa006b000
scsi_mod 121909 5 sd_mod,libata,mptspi,mptscsih,scsi_transport_spi, Live 0xffffffffa003a000
ide_core 76802 3 ide_cd_mod,ide_pci_generic,piix, Live 0xffffffffa0018000
thermal 11674 0 - Live 0xffffffffa000f000
fan 3346 0 - Live 0xffffffffa0009000
thermal_sys 11878 3 processor,thermal,fan, Live 0xffffffffa0000000
root@debian2:~# cat /proc/ioports
0000-001f : dma1
0020-0021 : pic1
0040-0043 : timer0
0050-0053 : timer1
0060-0060 : keyboard
0064-0064 : keyboard
0070-0071 : rtc0
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : 0000:00:07.1
0170-0177 : piix
01f0-01f7 : 0000:00:07.1
01f0-01f7 : piix
02f8-02ff : serial
0376-0376 : 0000:00:07.1
0376-0376 : piix
0378-037a : parport0
03c0-03df : vga+
03f2-03f2 : floppy
03f4-03f5 : floppy
03f6-03f6 : 0000:00:07.1
03f6-03f6 : piix
03f7-03f7 : floppy
03f8-03ff : serial
0cf0-0cf1 : pnp 00:01
0cf8-0cff : PCI conf1
1000-103f : 0000:00:07.3
1000-103f : pnp 00:01
1000-1003 : ACPI PM1a_EVT_BLK
1004-1005 : ACPI PM1a_CNT_BLK
1008-100b : ACPI PM_TMR
100c-100f : ACPI GPE0_BLK
1010-1015 : ACPI CPU throttle
1040-104f : 0000:00:07.3
1040-104f : pnp 00:01
1060-107f : pnp 00:0c
1080-10bf : 0000:00:07.7
10c0-10cf : 0000:00:07.1
10c0-10cf : piix
10d0-10df : 0000:00:0f.0
1400-14ff : 0000:00:10.0
2000-3fff : PCI Bus 0000:02
2000-203f : 0000:02:01.0
2000-203f : e1000
2040-207f : 0000:02:02.0
2040-207f : Ensoniq AudioPCI
2080-209f : 0000:02:00.0
2080-209f : uhci_hcd
4000-4fff : PCI Bus 0000:03
5000-5fff : PCI Bus 0000:0b
6000-6fff : PCI Bus 0000:13
7000-7fff : PCI Bus 0000:1b
8000-8fff : PCI Bus 0000:04
9000-9fff : PCI Bus 0000:0c
a000-afff : PCI Bus 0000:14
b000-bfff : PCI Bus 0000:1c
c000-cfff : PCI Bus 0000:05
d000-dfff : PCI Bus 0000:0d
e000-efff : PCI Bus 0000:15
f000-ffff : PCI Bus 0000:1d
proc/ioports
0000-001f : dma1
0020-0021 : pic1
0040-0043 : timer0
0050-0053 : timer1
0060-0060 : keyboard
0064-0064 : keyboard
0070-0071 : rtc0
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : 0000:00:07.1
0170-0177 : piix
01f0-01f7 : 0000:00:07.1
01f0-01f7 : piix
02f8-02ff : serial
0376-0376 : 0000:00:07.1
0376-0376 : piix
0378-037a : parport0
03c0-03df : vga+
03f2-03f2 : floppy
03f4-03f5 : floppy
03f6-03f6 : 0000:00:07.1
03f6-03f6 : piix
03f7-03f7 : floppy
03f8-03ff : serial
0cf0-0cf1 : pnp 00:01
0cf8-0cff : PCI conf1
1000-103f : 0000:00:07.3
1000-103f : pnp 00:01
1000-1003 : ACPI PM1a_EVT_BLK
1004-1005 : ACPI PM1a_CNT_BLK
1008-100b : ACPI PM_TMR
100c-100f : ACPI GPE0_BLK
1010-1015 : ACPI CPU throttle
1040-104f : 0000:00:07.3
1040-104f : pnp 00:01
1060-107f : pnp 00:0c
1080-10bf : 0000:00:07.7
10c0-10cf : 0000:00:07.1
10c0-10cf : piix
10d0-10df : 0000:00:0f.0
1400-14ff : 0000:00:10.0
2000-3fff : PCI Bus 0000:02
2000-203f : 0000:02:01.0
2000-203f : e1000
2040-207f : 0000:02:02.0
2040-207f : Ensoniq AudioPCI
2080-209f : 0000:02:00.0
2080-209f : uhci_hcd
4000-4fff : PCI Bus 0000:03
5000-5fff : PCI Bus 0000:0b
6000-6fff : PCI Bus 0000:13
7000-7fff : PCI Bus 0000:1b
8000-8fff : PCI Bus 0000:04
9000-9fff : PCI Bus 0000:0c
a000-afff : PCI Bus 0000:14
b000-bfff : PCI Bus 0000:1c
c000-cfff : PCI Bus 0000:05
d000-dfff : PCI Bus 0000:0d
e000-efff : PCI Bus 0000:15
f000-ffff : PCI Bus 0000:1d
root@debian2:~# cat /proc/iomem
00000000-0000ffff : reserved
00010000-0009f7ff : System RAM
0009f800-0009ffff : reserved
000ca000-000cbfff : reserved
000dc000-000e3fff : reserved
000e8000-000fffff : reserved
00100000-896effff : System RAM
01000000-012e94e8 : Kernel code
012e94e9-014b648f : Kernel data
01550000-0165d9d3 : Kernel bss
896f0000-896fefff : ACPI Tables
896ff000-896fffff : ACPI Non-volatile Storage
89700000-897fffff : System RAM
89800000-8bffffff : RAM buffer
8c000000-8c007fff : 0000:00:0f.0
8c008000-8c00bfff : 0000:00:10.0
d0000000-d7ffffff : 0000:00:0f.0
d8000000-d87fffff : 0000:00:0f.0
d8800000-d881ffff : 0000:00:10.0
d8800000-d881ffff : mpt
d8820000-d883ffff : 0000:00:10.0
d8820000-d883ffff : mpt
d8900000-d9cfffff : PCI Bus 0000:02
d8900000-d890ffff : 0000:02:01.0
d8900000-d890ffff : e1000
d8910000-d8910fff : 0000:02:03.0
d8910000-d8910fff : ehci_hcd
d8920000-d893ffff : 0000:02:01.0
d8920000-d893ffff : e1000
d9d00000-d9dfffff : PCI Bus 0000:03
d9e00000-d9efffff : PCI Bus 0000:0b
d9f00000-d9ffffff : PCI Bus 0000:13
da000000-da0fffff : PCI Bus 0000:1b
da100000-da1fffff : PCI Bus 0000:04
da200000-da2fffff : PCI Bus 0000:0c
da300000-da3fffff : PCI Bus 0000:14
da400000-da4fffff : PCI Bus 0000:1c
da500000-da5fffff : PCI Bus 0000:05
da600000-da6fffff : PCI Bus 0000:0d
da700000-da7fffff : PCI Bus 0000:15
da800000-da8fffff : PCI Bus 0000:1d
da900000-da9fffff : PCI Bus 0000:06
daa00000-daafffff : PCI Bus 0000:0e
dab00000-dabfffff : PCI Bus 0000:16
dac00000-dacfffff : PCI Bus 0000:1e
dad00000-dadfffff : PCI Bus 0000:07
dae00000-daefffff : PCI Bus 0000:0f
daf00000-daffffff : PCI Bus 0000:17
db000000-db0fffff : PCI Bus 0000:1f
db100000-db1fffff : PCI Bus 0000:08
db200000-db2fffff : PCI Bus 0000:10
db300000-db3fffff : PCI Bus 0000:18
db400000-db4fffff : PCI Bus 0000:20
db500000-db5fffff : PCI Bus 0000:09
db600000-db6fffff : PCI Bus 0000:11
db700000-db7fffff : PCI Bus 0000:19
db800000-db8fffff : PCI Bus 0000:21
db900000-db9fffff : PCI Bus 0000:0a
dba00000-dbafffff : PCI Bus 0000:12
dbb00000-dbbfffff : PCI Bus 0000:1a
dbc00000-dbcfffff : PCI Bus 0000:22
dbe00000-dbffffff : pnp 00:0c
dc400000-dc9fffff : PCI Bus 0000:02
dc400000-dc40ffff : 0000:02:01.0
dca00000-dcafffff : PCI Bus 0000:03
dcb00000-dcbfffff : PCI Bus 0000:0b
dcc00000-dccfffff : PCI Bus 0000:13
dcd00000-dcdfffff : PCI Bus 0000:1b
dce00000-dcefffff : PCI Bus 0000:04
dcf00000-dcffffff : PCI Bus 0000:0c
dd000000-dd0fffff : PCI Bus 0000:14
dd100000-dd1fffff : PCI Bus 0000:1c
dd200000-dd2fffff : PCI Bus 0000:05
dd300000-dd3fffff : PCI Bus 0000:0d
dd400000-dd4fffff : PCI Bus 0000:15
dd500000-dd5fffff : PCI Bus 0000:1d
dd600000-dd6fffff : PCI Bus 0000:06
dd700000-dd7fffff : PCI Bus 0000:0e
dd800000-dd8fffff : PCI Bus 0000:16
dd900000-dd9fffff : PCI Bus 0000:1e
dda00000-ddafffff : PCI Bus 0000:07
ddb00000-ddbfffff : PCI Bus 0000:0f
ddc00000-ddcfffff : PCI Bus 0000:17
ddd00000-dddfffff : PCI Bus 0000:1f
dde00000-ddefffff : PCI Bus 0000:08
ddf00000-ddffffff : PCI Bus 0000:10
de000000-de0fffff : PCI Bus 0000:18
de100000-de1fffff : PCI Bus 0000:20
de200000-de2fffff : PCI Bus 0000:09
de300000-de3fffff : PCI Bus 0000:11
de400000-de4fffff : PCI Bus 0000:19
de500000-de5fffff : PCI Bus 0000:21
de600000-de6fffff : PCI Bus 0000:0a
de700000-de7fffff : PCI Bus 0000:12
de800000-de8fffff : PCI Bus 0000:1a
de900000-de9fffff : PCI Bus 0000:22
e0000000-efffffff : PCI MMCONFIG 0 [00-ff]
e0000000-efffffff : reserved
e0000000-efffffff : pnp 00:0c
fec00000-fec0ffff : reserved
fec00000-fec00fff : IOAPIC 0
fee00000-fee00fff : Local APIC
fee00000-fee00fff : reserved
fffe0000-ffffffff : reserved
Attachment:
queue.c
Description: Binary data
