Re: Newbie: ENBD on kernel 2.6 - kernel crash!

Hi again

OK. After recompiling according to instructions, I still get the same 
kernel error when 'insmod'ing enbd.ko:

Any more ideas? Should I try 2.6.10 or 2.6.11 kernel?

Thanks
Roland

[root@rolandpj-box0 nbd-2.4.32]# insmod /tmp/enbd.ko
Segmentation fault

[root@rolandpj-box0 nbd-2.4.32]# tail -n 60 /var/log/messages
May 17 11:29:08 localhost su(pam_unix)[3638]: session opened for user 
root by ro
landpj(uid=503)
May 17 11:29:24 localhost kernel: enbd: no version for "struct_module" 
found: ke
rnel tainted.
May 17 11:29:24 localhost kernel: ENBD #5223[0]: enbd_init Network Block 
Device
originally by [email protected]
May 17 11:29:24 localhost kernel: ENBD #5224[0]: enbd_init Network Block 
Device
port to 2.0 by [email protected]
May 17 11:29:24 localhost kernel: ENBD #5226[0]: enbd_init Network Block 
Device
move networking to user space by [email protected]
May 17 11:29:24 localhost kernel: ENBD #5228[0]: enbd_init Enhanced 
Network Bloc
k Device 2.4.30 $Date: 2002/09/17 16:33:22 $ by [email protected]
May 17 11:29:24 localhost kernel: Unable to handle kernel NULL pointer 
dereferen
ce at virtual address 000003fe
May 17 11:29:24 localhost kernel:  printing eip:
May 17 11:29:24 localhost kernel: 0224694b
May 17 11:29:24 localhost kernel: *pde = 00000000
May 17 11:29:24 localhost kernel: Oops: 0002 [#1]
May 17 11:29:24 localhost kernel: Modules linked in: enbd(U) i915 nfsd 
exportfs
lockd parport_pc lp parport autofs4 i2c_dev i2c_core sunrpc ipt_REJECT 
ipt_state
 ip_conntrack iptable_filter ip_tables dm_mod button battery ac md5 ipv6 
uhci_hc
d ehci_hcd hw_random snd_intel8x0 snd_ac97_codec snd_pcm_oss 
snd_mixer_oss snd_p
cm snd_timer snd_page_alloc gameport snd_mpu401_uart snd_rawmidi 
snd_seq_device
snd soundcore tg3 floppy ext3 jbd
May 17 11:29:24 localhost kernel: CPU:    0
May 17 11:29:24 localhost kernel: EIP:    0060:[<0224694b>]    Tainted: 
GF  VLI
May 17 11:29:24 localhost kernel: EFLAGS: 00010212   (2.6.9-1.667)
May 17 11:29:24 localhost kernel: EIP is at blk_queue_max_sectors+0x2c/0x3d
May 17 11:29:24 localhost kernel: eax: 00470800   ebx: 00002384   ecx: 
00000040
  edx: 823d2384
May 17 11:29:24 localhost kernel: esi: 00000200   edi: 823d2690   ebp: 
823d09c0
  esp: 68bdaee4
May 17 11:29:24 localhost kernel: ds: 007b   es: 007b   ss: 0068
May 17 11:29:24 localhost kernel: Process insmod (pid: 3670, 
threadinfo=68bda000
 task=68b967f0)
May 17 11:29:24 localhost kernel: Stack: 685f9d18 39e14e00 821101a6 
685f9d18 000
00200 03cc007b ffffff00 021468a3
May 17 11:29:24 localhost kernel:        00000060 00000206 0000008e 
74a6bf40 000
00001 00000202 8256bef0 00000000
May 17 11:29:24 localhost kernel:        00000000 823d0200 0213b7e3 
8256bef0 000
8db76 00000708 68af62c4 73e1ca00
May 17 11:29:24 localhost kernel: Call Trace:
May 17 11:29:24 localhost kernel:  [<821101a6>] init_module+0x1a6/0xc7c 
[enbd]
May 17 11:29:24 localhost kernel:  [<021468a3>] free_hot_cold_page+0x4b/0xca
May 17 11:29:24 localhost kernel:  [<0213b7e3>] load_module+0x7d1/0x831
May 17 11:29:24 localhost kernel:  [<02302380>] schedule+0x478/0x5a4
May 17 11:29:24 localhost kernel:  [<0213ba4a>] sys_init_module+0x207/0x2ef
May 17 11:29:24 localhost kernel: Code: <3>Debug: sleeping function 
called from
invalid context at include/linux/rwsem.h:43
May 17 11:29:24 localhost kernel: in_atomic():0[expected: 0], 
irqs_disabled():1
May 17 11:29:24 localhost kernel:  [<0211c8b9>] __might_sleep+0x7d/0x88
May 17 11:29:24 localhost kernel:  [<0215e27e>] rw_vm+0x216/0x482
May 17 11:29:24 localhost kernel:  [<02246920>] 
blk_queue_max_sectors+0x1/0x3d
May 17 11:29:24 localhost kernel:  [<02246920>] 
blk_queue_max_sectors+0x1/0x3d
May 17 11:29:24 localhost kernel:  [<0215e9d0>] get_user_size+0x30/0x57
May 17 11:29:24 localhost kernel:  [<02246920>] 
blk_queue_max_sectors+0x1/0x3d
May 17 11:29:24 localhost kernel:  [<0210682b>] show_registers+0x109/0x15e
May 17 11:29:24 localhost kernel:  [<02106a2f>] die+0x14a/0x241
May 17 11:29:24 localhost kernel:  [<0211937e>] do_page_fault+0x0/0x511
May 17 11:29:24 localhost kernel:  [<0211937e>] do_page_fault+0x0/0x511
May 17 11:29:24 localhost kernel:  [<02119733>] do_page_fault+0x3b5/0x511
May 17 11:29:24 localhost kernel:  [<0224694b>] 
blk_queue_max_sectors+0x2c/0x3d
May 17 11:29:24 localhost kernel:  [<02146b10>] buffered_rmqueue+0x1dd/0x200
May 17 11:29:24 localhost kernel:  [<02302db4>] __cond_resched+0x14/0x3b
May 17 11:29:24 localhost kernel:  [<02144e43>] mempool_create+0xf7/0x103
May 17 11:29:24 localhost kernel:  [<021456f8>] mempool_free_slab+0x0/0xc
May 17 11:29:24 localhost kernel:  [<021456ed>] mempool_alloc_slab+0x0/0xb
May 17 11:29:24 localhost kernel:  [<0211937e>] do_page_fault+0x0/0x511
May 17 11:29:24 localhost kernel:  [<0224694b>] 
blk_queue_max_sectors+0x2c/0x3d
May 17 11:29:24 localhost kernel:  [<821101a6>] init_module+0x1a6/0xc7c 
[enbd]
May 17 11:29:24 localhost kernel:  [<021468a3>] free_hot_cold_page+0x4b/0xca
May 17 11:29:24 localhost kernel:  [<0213b7e3>] load_module+0x7d1/0x831
May 17 11:29:24 localhost kernel:  [<02302380>] schedule+0x478/0x5a4
May 17 11:29:24 localhost kernel:  [<0213ba4a>] sys_init_module+0x207/0x2ef
May 17 11:29:24 localhost kernel:  Bad EIP value.
May 17 11:30:01 localhost crond(pam_unix)[3673]: session opened for user 
root by
 (uid=0)
May 17 11:30:01 localhost crond(pam_unix)[3672]: session opened for user 
root by
 (uid=0)
May 17 11:30:01 localhost crond(pam_unix)[3673]: session closed for user 
root
May 17 11:30:02 localhost crond(pam_unix)[3672]: session closed for user 
root
[root@rolandpj-box0 nbd-2.4.32]#