I've upgraded devmapper to 1.02.20 and lvm2 to 2.02.26. Didn't help much,
I just got a the same BUG again:
kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
BUG: unable to handle kernel paging request at virtual address f492c1f8
printing eip:
f492c1f8
*pdpt = 0000000000001001
*pde = 80000000348001e3
*pte = ec1c7da0ec1c7da0
Oops: 0011 [#1]
CPU: 0
EIP: 0060:[<f492c1f8>] Not tainted VLI
EFLAGS: 00010282 (2.6.22.1-jk1-exec-shield #1)
EIP is at 0xf492c1f8
eax: f492c1cc ebx: f492c1cc ecx: 00000000 edx: f492c1f8
esi: f492c1f8 edi: 00000000 ebp: 00000000 esp: d4177db4
ds: 007b es: 007b fs: 0000 gs: 0033 ss: 0068
Process lvcreate (pid: 2303, ti=d4176000 task=d1c88a00 task.ti=d4176000)
Stack: c02088c4 f492c1e4 c02088d0 c03dd95e c2969f60 c0209118 ce684800 e5436280
00000287 c03dd952 c03dd952 f6a44548 c018e393 c19ea90c 00000000 c19eb900
c03dd952 c18f9780 f45cb300 00000000 c0157664 c18f97cc c18f9780 c01575be
Call Trace:
[kobject_cleanup+116/128] kobject_cleanup+0x74/0x80
[kobject_release+0/16] kobject_release+0x0/0x10
[kref_put+56/160] kref_put+0x38/0xa0
[sysfs_hash_and_remove+275/320] sysfs_hash_and_remove+0x113/0x140
[sysfs_slab_alias+100/128] sysfs_slab_alias+0x64/0x80
[sysfs_slab_add+174/208] sysfs_slab_add+0xae/0xd0
[kmem_cache_create+236/320] kmem_cache_create+0xec/0x140
[jobs_init+46/128] jobs_init+0x2e/0x80
[kcopyd_init+45/176] kcopyd_init+0x2d/0xb0
[kcopyd_client_create+28/208] kcopyd_client_create+0x1c/0xd0
[init_hash_tables+142/192] init_hash_tables+0x8e/0xc0
[snapshot_ctr+506/752] snapshot_ctr+0x1fa/0x2f0
[dm_split_args+47/272] dm_split_args+0x2f/0x110
[dm_table_add_target+252/400] dm_table_add_target+0xfc/0x190
[vmalloc+32/48] vmalloc+0x20/0x30
[populate_table+98/192] populate_table+0x62/0xc0
[table_load+82/240] table_load+0x52/0xf0
[table_load+0/240] table_load+0x0/0xf0
[ctl_ioctl+209/288] ctl_ioctl+0xd1/0x120
[ctl_ioctl+0/288] ctl_ioctl+0x0/0x120
[do_ioctl+59/96] do_ioctl+0x3b/0x60
[vfs_ioctl+94/416] vfs_ioctl+0x5e/0x1a0
[sys_ioctl+61/128] sys_ioctl+0x3d/0x80
[sysenter_past_esp+95/133] sysenter_past_esp+0x5f/0x85
=======================
Code: 00 00 00 00 00 00 00 ff ff ff ff 00 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <f8> c1 92 f4 f8 c1 92 f4 4c 16 b6 f5 00 00 00 00 00 00 00 00 00
EIP: [<f492c1f8>] 0xf492c1f8 SS:ESP 0068:d4177db4
> I got the appended BUG from a 32-bit 2.6.22.1 kernel (with exec-shield
> patch and PAE enabled) on an Athlon64 with dmsetup 1.02.03 and lvm2
> v2.02.02.
> (Note, the message comes from the vanilla kernel, not from the
> exec-shiled patch.)
>
> I wasn't able to reproduce the problem so far. The machine creates
> several snapshot volumes every 4 hours and worked fine with the new
> kernel for several days. It had 2.6.16.12+exec-shield before and ran
> flawlessy for over a year.
>
>
> kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
> BUG: unable to handle kernel paging request at virtual address f551df78
> printing eip:
> f551df78
> *pdpt = 0000000000001001
> *pde = 80000000354001e3
> *pte = 9293396c5d22e546
> Oops: 0011 [#1]
> CPU: 0
> EIP: 0060:[<f551df78>] Not tainted VLI
> EFLAGS: 00010286 (2.6.22.1-jk1-exec-shield #1)
> EIP is at 0xf551df78
> eax: f551df4c ebx: f551df4c ecx: 00000000 edx: f551df78
> esi: f551df78 edi: 00000000 ebp: 00000000 esp: e8ee5db4
> ds: 007b es: 007b fs: 0000 gs: 0033 ss: 0068
> Process lvcreate (pid: 25916, ti=e8ee4000 task=f7358a00 task.ti=e8ee4000)
> Stack: c02088c4 f551df64 c02088d0 c03dd95e c64ccf00 c0209118 00000287 c03dd95e
> 00000287 c018e38b c03dd952 d3e460e8 c018e393 c192a90c 00000000 c192b900
> c03dd952 f557a600 f59bbcc0 00000000 c0157664 f557a64c f557a600 c01575be
> Call Trace:
> [kobject_cleanup+116/128] kobject_cleanup+0x74/0x80
> [kobject_release+0/16] kobject_release+0x0/0x10
> [kref_put+56/160] kref_put+0x38/0xa0
> [sysfs_hash_and_remove+267/320] sysfs_hash_and_remove+0x10b/0x140
> [sysfs_hash_and_remove+275/320] sysfs_hash_and_remove+0x113/0x140
> [sysfs_slab_alias+100/128] sysfs_slab_alias+0x64/0x80
> [sysfs_slab_add+174/208] sysfs_slab_add+0xae/0xd0
> [kmem_cache_create+236/320] kmem_cache_create+0xec/0x140
> [jobs_init+46/128] jobs_init+0x2e/0x80
> [kcopyd_init+45/176] kcopyd_init+0x2d/0xb0
> [kcopyd_client_create+28/208] kcopyd_client_create+0x1c/0xd0
> [init_hash_tables+142/192] init_hash_tables+0x8e/0xc0
> [snapshot_ctr+506/752] snapshot_ctr+0x1fa/0x2f0
> [dm_split_args+47/272] dm_split_args+0x2f/0x110
> [dm_table_add_target+252/400] dm_table_add_target+0xfc/0x190
> [vmalloc+32/48] vmalloc+0x20/0x30
> [populate_table+98/192] populate_table+0x62/0xc0
> [table_load+82/240] table_load+0x52/0xf0
> [table_load+0/240] table_load+0x0/0xf0
> [ctl_ioctl+209/288] ctl_ioctl+0xd1/0x120
> [ctl_ioctl+0/288] ctl_ioctl+0x0/0x120
> [do_ioctl+59/96] do_ioctl+0x3b/0x60
> [vfs_ioctl+94/416] vfs_ioctl+0x5e/0x1a0
> [sys_ioctl+61/128] sys_ioctl+0x3d/0x80
> [sysenter_past_esp+95/133] sysenter_past_esp+0x5f/0x85
> =======================
> Code: 00 00 00 00 00 00 00 ff ff ff ff 00 00 00 00 00 00 00 00 20 00 00 00 00 00 00 \
> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <78> df 51 f5 78 df 51 f5 74 1b 8b \
> f7 00 00 00 00 00 00 00 00 32
> EIP: [<f551df78>] 0xf551df78 SS:ESP 0068:e8ee5db4
Juergen
--
Juergen Kreileder, Blackdown Java-Linux Team
http://blog.blackdown.de/
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